Inspection and verification
1. Make sure the customer's complaint is valid.
2. Visually inspect for obvious faults.
Some networks have a wired connection; a multimeter and electrical manuals can be used to diagnose them by identifying a general fault area using a diagnostic trouble code (DTC).
Data communication system network for media systems (MOST) transmits data from the infotainment system via fiber optic cables, it requires diagnostic and repair methods familiar to many of us. Refer to the MOST diagnostic section after the DTC indicator.
| General information |
3. If an obvious cause of a problem you identified or described by a customer is found, resolve it before proceeding to the next steps (if possible).
4. Use an approved diagnostic system or scan tool (tester), to retrieve all DTCs before accessing the DTC Index (DTC).
Since the networks cover the entire vehicle, a full DTC reading is recommended.
Clear all DTCs after troubleshooting.
DTC index
NOTE: Universal Scan Tools cannot read the listed codes or can only read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7 digit code to identify the problem (the last 2 digits give additional information read by the diagnostic system approved by the manufacturer).
Communication loss codes
Loss of communication codes indicate that the module is not receiving CAN information from another module, but its own data transmission is OK.
These codes usually indicate a break in the electrical circuit.
If a communication loss code is set, check the customer's complaint and check if the warning lights came on and if there were malfunction signals from other vehicle systems (seemingly unrelated to the module for which the code is registered), perform a full code reading.
Analyze the registered codes to identify possible general trends, for example, a number of modules are reporting a loss of communication with one particular module.
NOTE: Do not interpret timeout codes as a module or circuit failure. These codes are sometimes logged when the networks are busy and a module cannot process its signal on the network in the prescribed time.
Check the suspect module's power and ground circuits and the CAN circuits between modules, and make any necessary repairs. For more information, refer to the electrical manuals.
Check, repair and erase all registered codes, recheck the correct operation.
Bus disable codes
The information about the bus and its status refer to the corresponding network and to the modules of this network.
If the code indicates that the bus is disabled, this means that the corresponding module has detected errors, deactivated CAN communication and disconnected itself from the network in order to ensure the functioning of the rest of the network. At this point, the bus off code is logged.
The most common reason for logging bus off codes is a short circuit in the CAN network; Before suspecting a module failure, check the CAN circuits using the electrical manuals.
The NNV502520 software version provides the ability to register a failure in any of the communication lines listed below in the event of a sudden significant drop in battery voltage during the operation of the output circuit. The resulting DTCs need to be cleared only if there is a reported failure of the related system. In software versions starting with NNV502990, this problem is fixed.
Communication lines:
- CAN bus off
- LIN SCgnd
- LIN bus header error
- LIN bus checksum error
- SLIN SCgnd
- SLIN bus header error
- SLIN bus checksum error
| DTC | Description | Possible reason | Action |
| B118662 | Tailgate Lock Signal Comparison Error | Refer to the electrical manual and check the electrical circuit of the locking device. Check the operation of the blocking device. If the failure persists, the CJB may be internally faulty. If there are no other DTCs, ignore this fault. | |
| B11C312 | Lock release relay | Lock open relay circuit short circuit to battery, overheating or overload | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1A0016 | control module | Control Module Circuit Voltage Below Threshold Voltage Less Than (voltage of the main control module - 2 V) for more than 10 s. | Check the power and ground circuits for the relevant module. |
| B1A9074 | Sunroof movement too slow | Sunroof drive slip (mechanical problem) | Check/replace sunroof drive as needed. |
| B1A9131 | Speed/position sensor A | Check the circuit between sunroof control module and sunroof motor according to electrical manual for open circuit or short circuit. Replace motor/ sunroof if necessary. | |
| B1A9231 | Speed/position sensor B | Check the circuit between sunroof control module and sunroof motor according to electrical manual for open circuit or short circuit. Replace motor/ sunroof if necessary. | |
| B1A9393 | The position of the hatch is not correct | Clear the DTC and check sunroof operation. Check the circuit between sunroof control module and sunroof motor according to electrical manual for open circuit or short circuit. Replace motor/ sunroof if necessary. | |
| B1A9801 | LIN bus - electrical circuit No. 1 | LIN bus short to + battery or ground | The LIN bus provides serial communications to the rain sensor, sunroof, optional seat memory modules, and DTC logging is controlled by the vehicle configuration file (CCF) (depending on installation). Repair is required only when one or more devices are installed and not working properly. See status description "Communication loss" at the beginning of this table. |
| B1A9881 | LIN bus - electrical circuit No. 1 | No repair required unless the customer complains about poor performance of the rain sensor, sunroof or seat memory. The LIN bus provides serial communications to the rain sensor, sunroof, optional seat memory modules, and DTC logging is controlled by the vehicle configuration file (CCF) (depending on installation). Repair is required only when one or more devices are installed and not working properly. See status description "Communication loss" at the beginning of this table. | |
| B1A9883 | LIN bus - electrical circuit No. 1 | LIN bus checksum error | The LIN bus provides serial communications to the rain sensor, sunroof, optional seat memory modules, and DTC logging is controlled by the vehicle configuration file (CCF) (depending on installation). Repair is required only when one or more devices are installed and not working properly. See status description "Communication loss" at the beginning of this table. |
| B1A994C | Reset at power on | Reconnecting power to the central distribution unit (CJB) or battery connection | No action required, clear/ignore DTC. |
| B1B0042 | Secondary module "A" | Software Error - General Memory Failure | No action required, clear/ignore DTC. |
| B1B0044 | Secondary module "A" | Software error - data memory failure | No action required, clear/ignore DTC. |
| B1B0045 | Secondary module "A" | Software Error - Program Memory Malfunction | No action required, clear/ignore DTC. |
| B1B0047 | Secondary module "A" | Software error | No action required, clear/ignore DTC. |
| B1B014A | Key transponder | Unknown key, communication error with the key transponder when the starter is turned on | No action required, clear/ignore DTC. |
| B1B014C | Key transponder | The transponder of the key is incorrect / the new key has not been programmed. The DTC is set each time the ignition is turned on until both keys are programmed | Clear the DTC and recheck. |
| B1B0146 | Key transponder | Unsuccessful key programming in learning mode. DTC log for failed key programming | Complete key programming and clear DTC. |
| B1B0166 | Key transponder | Repeated use of an incorrect key - registration of a fault code when using several codes in succession in an attempt to determine the transponder code | No action required, clear/ignore DTC. |
| B1B0187 | Key transponder | Check for other DTCs If this DTC is logged together with DTC B1C6012 in the communication network module and DTC C1A5564 in the parking brake module, troubleshoot DTC B1C6012 first, clear the DTCs, and retest. Check key transponder information and clear DTC. | |
| B1B0228 | Low frequency ring antenna | Tolerance error when transmitting data from the key transponder | No action required, clear and ignore the DTC. |
| B1B0296 | Low frequency ring antenna | Rupture or short circuit of a chain of the ring antenna of a transponder of a key of ignition | Refer to the electrical manuals and check the transponder circuit. Replace/repair as needed. |
| B1B0353 | Key with transponder No. 1 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0392 | Key with transponder No. 1 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B0396 | Key with transponder No. 1 | Rupture or short circuit of a chain of the ring antenna of a transponder of a key of ignition | Refer to the electrical manuals and check the transponder ring antenna circuit. Replace/repair as needed. |
| B1B0453 | Key with transponder No. 2 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0492 | Key with transponder No. 2 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B0553 | Key with transponder No. 3 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0592 | Key with transponder No. 3 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B0653 | Key with transponder No. 4 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0692 | Key with transponder No. 4 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B0753 | Key with transponder No. 5 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0792 | Key with transponder No. 5 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B0853 | Key with transponder No. 6 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0892 | Key with transponder No. 6 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B0953 | Key with transponder No. 7 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B0992 | Key with transponder No. 7 | Wrong password is known about the key. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1053 | Key with transponder No. 8 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1092 | Key with transponder No. 8 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1153 | Key with transponder No. 9 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1192 | Key with transponder No. 9 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1253 | Key with transponder No. 10 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1292 | Key with transponder No. 10 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1353 | Key with transponder No. 11 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1392 | Key with transponder No. 11 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1453 | Key with transponder No. 12 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1492 | Key with transponder No. 12 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1553 | Key with transponder No. 13 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1592 | Key with transponder No. 13 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1653 | Key with transponder No. 14 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1692 | Key with transponder No. 14 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1753 | Key with transponder No. 15 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1792 | Key with transponder No. 15 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1853 | Key with transponder No. 16 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1892 | Key with transponder No. 16 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B1953 | Key with transponder No. 17 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B1992 | Key with transponder No. 17 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2053 | Key with transponder No. 18 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2092 | Key with transponder No. 18 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2153 | Key with transponder No. 19 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2192 | Key with transponder No. 19 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2253 | Key with transponder No. 20 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2292 | Key with transponder No. 20 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2353 | Key with transponder No. 21 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2392 | Key with transponder No. 21 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2453 | Key with transponder No. 22 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2492 | Key with transponder No. 22 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2553 | Key with transponder No. 23 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2592 | Key with transponder No. 23 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2653 | Key with transponder No. 24 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2692 | Key with transponder No. 24 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2753 | Key with transponder No. 25 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2792 | Key with transponder No. 25 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2853 | Key with transponder No. 26 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2892 | Key with transponder No. 26 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B2953 | Key with transponder No. 27 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B2992 | Key with transponder No. 27 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B3053 | Key with transponder No. 28 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B3092 | Key with transponder No. 28 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B3153 | Key with transponder No. 29 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B3192 | Key with transponder No. 29 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B3253 | Key with transponder No. 30 | Theft warning - triggered when a known disabled key is inserted into the ignition | No action required, clear/ignore DTC. |
| B1B3292 | Key with transponder No. 30 | Invalid known key password. Error when acknowledging communication with the key transponder. | No action required, clear/ignore DTC. |
| B1B3386 | Passing a target ID | Communication error with the engine management system | No action required, clear/ignore DTC. |
| B1B3387 | Passing a target ID | Communication error with the engine management system | No action required, clear/ignore DTC. |
| B1B3486 | Passing a target ID | Communication error with the engine management system | No action required, clear/ignore DTC. |
| B1B3487 | Passing a target ID | Communication error with the engine management system | No action required, clear/ignore DTC. |
| B1B3501 | RF Scanning Receiver | Communication error with scanning RF receiver | No action required, clear/ignore DTC. |
| B1B551C | Rain sensor module | The supply voltage of the rain sensor is not correct | Refer to the electrical manuals and check the power supply to the sensor module from the CJB, repair if necessary. If power is present, no action is required, clear/ignore the DTC. |
| B1B5546 | Rain sensor module | Rain sensor parameter/calibration memory failure: Initialization error - optical calibration not possible | Check the cleanliness of the windshield in the sensor installation area. Check the correct installation of the sensor on the optical element and the tightness of the optical element to the windshield. Clear the DTC and recheck. If the DTC reoccurs, replace the rain/light sensor. |
| B1B5549 | Rain sensor module | Rain sensor internal failure | Replace rain/light sensor. |
| B1B5587 | Rain sensor module | No response from rain sensor module. | The rain sensor is not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is only required for vehicles with a sunroof. See status description if necessary "Communication loss" at the beginning of this table. |
| B1B5591 | Rain sensor module | Rain Sensor Module - The measured temperature is outside the normal operating range. | No action required, clear/ignore DTC. |
| B1B5646 | hatch module | Sunroof Control Module - Parameter/Calibration Memory Malfunction | Clear the DTC and recheck. If the DTC reoccurs, replace the sunroof control module. Refer to the guided diagnostic program for this code on the approved diagnostic system. |
| B1B564B | hatch module | Sunroof control module - overheating (malfunction or lack of sensor calibration) | If there is no customer complaint about sunroof operation, no action is required, clear/ignore the DTC. If the operation of the assembly is affected, refer to the electrical manual and check the control module connector and circuit. Repair and clear the DTC as necessary. If the DTC persists and the sunroof does not operate normally, replace the control module. |
| B1B5687 | hatch module | There is no response from the sunroof module. | The sunroof is not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is only required for vehicles with a sunroof. See status description if necessary "Communication loss" at the beginning of this table. |
| B1B5916 | Too long motor operation | Failure in the 5 V supply circuit of the seat adjustment sensors | Refer to the electrical manuals and check the 5V power supply from the seat memory module to the motor and seat circuit. If there is no 5V supply voltage, repair/replace assemblies as needed. |
| B1B5968 | Too long motor operation | The hatch was constantly moving, which led to the roar of the electric motor (it is possible to stop the hatch when overroaring) | No action required, clear the DTC. |
| B1B6916 | Electrical supply circuit 12 V | If there is no customer complaint about seat operation, no action is required, clear/ignore the DTC. If this affects the operation of the seat, refer to the electrical manual and check the power and circuit of the control module. Repair and clear the DTC as necessary. If there is supply voltage on the module and there is no voltage at its output, replace the settings memory module. | |
| B1B7001 | LIN bus - electrical circuit No. 2 | SLIN bus short circuit to + battery or ground | SLIN bus provides daisy chain connection of self-powered siren (BBUS). This system is optional, but the DTC registration is determined by the CCF file (depending on whether BBUS siren is installed or not). Repair is required only if the BBUS siren is installed and not working properly. See status description "Communication loss" at the beginning of this table. |
| B1B7081 | LIN bus - electrical circuit No. 2 | SLIN bus header error | SLIN bus provides daisy chain connection of self-powered siren (BBUS). This system is optional, but the DTC registration is determined by the CCF file (depending on whether BBUS siren is installed or not). Repair is required only if the BBUS siren is installed and not working properly. See status description "Communication loss" at the beginning of this table. |
| B1B7083 | LIN bus - electrical circuit No. 2 | SLIN bus checksum error | SLIN bus provides daisy chain connection of self-powered siren (BBUS). This system is optional, but the DTC registration is determined by the CCF file (depending on whether BBUS siren is installed or not). Repair is required only when the BBUS siren is installed and not working properly. See status description "Communication loss" at the beginning of this table. |
| B1B8541 | Memory module | Error in seat module | Replace seat memory module If a module is suspected, refer to the Warranty Policy and Procedures Manual. |
| B1B8549 | Memory module | Error in seat module | If there is no customer complaint about seat operation, no action is required, clear/ignore the DTC. If this affects the operation of the seat, replace the module. If a module is suspected, refer to the warranty policy and procedures manual. |
| B1B8587 | Memory module | Seat memory module not responding | The seat settings memory module is not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is only required for vehicles with a sunroof. See status description if necessary "Communication loss" at the beginning of this table. |
| B1B8673 | Seat height motor relay | Malfunction of the internal relay of the module of memory of settings (sticking) | Replace seat memory module If a module is suspected, refer to the Warranty Policy and Procedures Manual. |
| B1B8693 | Seat height motor relay | If there is no customer complaint about seat operation, no action is required, clear/ignore the DTC. If seat operation is not correct, check/replace control module. If a module is suspected, refer to the warranty policy and procedures manual. | |
| B1B8731 | Seat Height Motor Speed/Position Sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat height motor. Repair/replace as needed. If there is no circuit problem, check/replace the seat height motor. | |
| B1B873A | Seat Height Motor Speed/Position Sensor | Seat has moved in height beyond the expected range Open or short circuit in the sensor circuit Seat adjustment range problem Seat height motor speed/position sensor defective | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat height motor. Repair/replace as needed. Check seat adjustment ranges to ensure correct operation. Replace the seat height motor |
| B1B8873 | Seat height motor relay | Malfunction of the internal relay of the module of memory of settings (sticking) | Replace seat memory module If a module is suspected, refer to the Warranty Policy and Procedures Manual. |
| B1B8893 | Horizontal seat motor relay | If there is no customer complaint about seat operation, no action is required, clear/ignore the DTC. If seat operation is not correct, check/replace control module. | |
| B1B8931 | Horizontal Seat Motor Speed/Position Sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat leveling motor. Repair/replace as needed. If there is no circuit problem, check/replace the seat leveling motor. | |
| B1B893A | Horizontal Seat Motor Speed/Position Sensor | Seat has moved horizontally out of expected range Open or short circuit in sensor electrical circuit Problem with seat adjustment range Seat horizontal motor speed/position sensor defective | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat leveling motor. Repair/replace as needed. Check seat adjustment ranges to ensure correct operation. Replace the electric motor for moving the seat in a horizontal plane |
| B1B9073 | Seat Tilt Motor Relay | Malfunction of the internal relay of the module of memory of settings (sticking) | Replace seat memory module If a module is suspected, refer to the Warranty Policy and Procedures Manual. |
| B1B9093 | Seat Tilt Motor Relay | If there is no customer complaint about seat operation, no action is required, clear/ignore the DTC. If seat operation is not correct, check/replace control module. | |
| B1B9131 | Seat tilt motor speed/position sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat tilt motor. Repair/replace as needed. If there is no circuit problem, check/replace the seat tilt motor. | |
| B1B913A | Seat tilt motor speed/position sensor | Seat tilted out of expected range Open or short circuit in sensor circuit Seat adjustment range problem Seat tilt motor speed/position sensor defective | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat tilt motor. Repair/replace as needed. Check seat adjustment ranges to ensure correct operation. Replace the seat tilt motor. |
| B1B9273 | Tilt Seat Motor Relay | Malfunction of the internal relay of the module of memory of settings (sticking) | Replace seat memory module If a module is suspected, refer to the Warranty Policy and Procedures Manual. |
| B1B9293 | Tilt Seat Motor Relay | If there is no customer complaint about seat operation, no action is required, clear/ignore the DTC. If seat operation is not correct, check/replace control module. | |
| B1B9331 | Seat Tilt Motor Speed/Position Sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat tilt motor. Repair/replace as needed. If there is no circuit problem, check/replace the seat tilt motor. | |
| B1B933A | Seat Tilt Motor Speed/Position Sensor | Seat tilted out of range expected Open or shorted sensor electrical circuit Problem with seat adjustment range Seat tilt motor speed/position sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the seat tilt motor. Repair/replace as needed. Check seat adjustment ranges to ensure correct operation. Replace the seat tilt motor. |
| B1B9473 | Seat up switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1B9573 | Seat down switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1B9673 | Seat forward switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1B9773 | Seat back switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1B9873 | Seat tilt up switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1B9973 | Seat down switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0073 | Seat tilt up switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0173 | Seat recline switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0273 | Position memory switch | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0373 | Memory switch #1 | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0473 | Memory switch #2 | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0573 | Memory switch #3 | Refer to electrical manuals and check wiring between seat memory module and switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C0601 | Driver's Mirror Up/Down Motor and Common Mirror Control Circuit | Refer to electrical manuals and check wiring between seat memory module and door mirror for open circuit or short to ground. Check the operation of the mirror and replace if necessary. | |
| B1C0701 | The electrical circuit of the electric motors for turning the left / right mirrors of the driver and raising / lowering the right side of the mirror | Refer to electrical manuals and check wiring between seat memory module and door mirror for open circuit or short to ground. Check the operation of the mirror and replace if necessary. | |
| B1C0801 | Passenger mirror left/right turn motor circuit and general mirror control circuit | Refer to electrical manuals and check wiring between seat memory module and door mirror for open circuit or short to ground. Check the operation of the mirror and replace if necessary. | |
| B1C0973 | Driver's Mirror Left/Right Motor Circuit | If there is no customer complaint about mirror operation, no action is required, clear/ignore the DTC. If mirror operation is abnormal, refer to electrical diagrams and check circuit for short to ground or open circuit Replace mirror/motor as needed. | |
| B1C1073 | Driver Mirror Up/Down Motor Circuit | If there is no customer complaint about mirror operation, no action is required, clear/ignore the DTC. If mirror operation is abnormal, refer to electrical diagrams and check circuit for short to ground or open circuit Replace mirror/motor as needed. | |
| B1C1173 | Passenger Mirror Left/Right Motor Circuit | If there is no customer complaint about mirror operation, no action is required, clear/ignore the DTC. If mirror operation is abnormal, refer to electrical diagrams and check circuit for short to ground or open circuit Replace mirror/motor as needed. | |
| B1C1273 | Passenger Mirror Up/Down Motor Circuit | If there is no customer complaint about mirror operation, no action is required, clear/ignore the DTC. If mirror operation is abnormal, refer to electrical diagrams and check circuit for short to ground or open circuit Replace mirror/motor as needed. | |
| B1C133A | Driver Mirror Up/Down Motor Feedback Circuit | Door mirror motor moved out of expected range Open or short in sensor circuit Faulty door mirror motor position sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the mirror. Repair/replace as needed. Check/replace mirror motor/complete assembly. |
| B1C143A | Driver Mirror Left/Right Motor Feedback Circuit | Door mirror motor moved out of expected range Open or short in sensor circuit Faulty door mirror motor position sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the mirror. Repair/replace as needed. Check/replace mirror motor/complete assembly. |
| B1C153A | Passenger Mirror Up/Down Motor Feedback Circuit | Door mirror motor moved out of expected range Open or short in sensor circuit Faulty door mirror motor position sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the mirror. Repair/replace as needed. Check/replace mirror motor/complete assembly. |
| B1C163A | Passenger Mirror Left/Right Motor Feedback Circuit | Door mirror motor moved out of expected range Open or short in sensor circuit Faulty door mirror motor position sensor | Refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the mirror. Repair/replace as needed. Check/replace mirror motor/complete assembly. |
| B1C1773 | Left Driver Mirror Switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C1873 | Right Driver Mirror Switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C1973 | Driver Mirror Up Switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C2073 | Driver Mirror Down Switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C2173 | Left Passenger Mirror Switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C2273 | Right Passenger Mirror Switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C2373 | Passenger mirror up switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C2473 | Passenger mirror down switch | Refer to electrical manuals and check wiring between memory module and mirror switch box for short to ground. Check switch operation and replace if necessary. | |
| B1C2593 | Electric motor relay for pedal position adjustment | When power steering column/pedal adjustment is not installed, no action is required, clear/ignore the DTC. With the power steering/pedal adjustment installed, check/replace the control module if necessary. | |
| B1C2573 | Electric motor relay for pedal position adjustment | When power steering column/pedal adjustment is not installed, no action is required, clear/ignore the DTC. With the power steering/pedal adjustment installed, check/replace the control module if necessary. | |
| B1C263A | Pedal Position Motor Feedback Circuit | If power steering column/pedal adjustment is not installed, no action required, clear/ignore the DTC. With the power steering/pedal adjustment installed, refer to the electrical manuals and check the wiring harness and connectors between the seat memory module and the height pedal motor. Repair/replace as needed. If there is no circuit problem, check/replace the height pedal motor. | |
| B1C2773 | Inward shift switch | If power steering column/pedal adjustment is not installed, no action required, clear/ignore the DTC. With the power steering column/pedal adjustment installed, refer to the electrical manuals and check the pedal shift out switch circuit for short or open circuit and check/replace the pedal shift in switch if necessary. | |
| B1C2873 | Outward Pedal Switch | When power steering column/pedal adjustment is not installed, no action is required, clear/ignore the DTC. With power steering column/pedal adjustment installed, refer to electrical manuals and check outward pedal shift switch circuit for short or open circuit and test/replace outward pedal shift switch if necessary. | |
| B1C3173 | Steering column adjustment motor relay | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the electric steering column adjustment is installed, refer to the electrical manuals and check the electric steering column motor circuit for short circuit or open circuit and check/replace the setting memory module if necessary. | |
| B1C3193 | Steering column adjustment motor relay | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. With the electric steering column adjustment installed, check/replace the control module if necessary. | |
| B1C3213 | Steering column tilt solenoid | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the power steering column adjustment is installed, refer to the electrical manuals and check the tilt solenoid circuit for short or open circuit and check/replace the tilt solenoid if necessary. | |
| B1C3296 | Steering column tilt solenoid | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the power steering column adjustment is installed, refer to the electrical manuals and check the steering column tilt solenoid circuit for a short or open circuit. Check for other relevant DTCs and repair as necessary. Allow solenoid to cool, clear DTC and check solenoid/tilt operation. If the DTC persists, replace the steering column tilt solenoid if necessary. | |
| B1C333A | Steering column tilt feedback signal | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the power steering column adjustment is installed, refer to the electrical manuals and check the steering column tilt solenoid feedback circuit for a short or open circuit. Check solenoid/tilt function and travel range Replace tilt solenoid if necessary. | |
| B1C3413 | Steering column height adjustment solenoid | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the power steering column adjustment is installed, refer to the electrical manuals and check the steering column height solenoid circuit for a short or open circuit and check/replace the tilt solenoid if necessary. | |
| B1C3496 | Steering column height adjustment solenoid | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the electric steering column adjustment is installed, refer to the electrical manuals and check the electric steering column height adjustment solenoid circuit for a short or open circuit. Check for other relevant DTCs and repair as necessary. Allow the solenoid to cool, clear the DTC and check the operation of the solenoid/height adjustment function. If the DTC persists, replace the height adjustment solenoid if necessary. | |
| B1C353A | Steering column height adjustment feedback signal | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the power steering column adjustment is installed, refer to the electrical manuals and check the feedback circuit of the steering column height solenoid for short or open circuit. Check the operation of the height adjustment solenoid/function and range of travel Replace the height adjustment solenoid if necessary. | |
| B1C363A | Steering column tilt/height adjustment switch | When the electric steering column adjustment is not installed, no action is required, clear/ignore the DTC. When the power steering column adjustment is installed, refer to the electrical manuals and check the tilt/height steering switch circuit for a short or open circuit. Check the operation of the steering column tilt/height adjustment switch and replace the switch if necessary. | |
| B1C3723 | Master Lock Switch Stuck | Refer to the electrical manual and check the electrical circuit of the master central locking switch. Check switch operation and replace if necessary. | |
| B1C3823 | Master release switch stuck | Refer to the electrical manual and check the electrical circuit of the central unlocking master switch. Check switch operation and replace if necessary. | |
| B1C3923 | Padlock switch stuck | Refer to the electrical manual and verify that there are no wires connected to the lock switch circuit SJB connector. Clear the DTC and recheck. If the DTC persists, an internal CJB failure is possible. If there are no other DTCs, ignore this fault. | |
| B1C4023 | Lock release switch stuck | Refer to the electrical manual and verify that there are no wires connected to the SJB connector of the lock release switch circuit. Clear the DTC and recheck. If the DTC persists, an internal CJB failure is possible. If there are no other DTCs, ignore this fault. | |
| B1C4123 | No. 1 tailgate release switch | Refer to the electrical manual and check the circuit of the back door release switch No. 1. Check the operation of the switch and replace it if necessary. | |
| B1C4223 | Tailgate release switch #2 | Refer to the electrical manual and check the circuit of the back door release switch No. 2. Check the operation of the switch and replace it if necessary. | |
| B1C4323 | Main interior light switch stuck | Check the interior lamp circuit according to the electrical manual. Check switch operation and replace if necessary. | |
| B1C4467 | Rear Wiper Parking Position Sensor Stuck | Make sure that the software level is at least NNV502990, if necessary, update it using diagnostic equipment recommended by the manufacturer. Clear the DTC and recheck. Check the rear window wiper park position sensor circuit according to the electrical manual. Clear the DTC and recheck. If the DTC remains, there may be an internal failure of the rear window wiper motor, check and replace if necessary. | |
| B1C4567 | Windshield Wiper Parking Position Sensor Stuck | Make sure that the software level is at least NNV502990, if necessary, update it using diagnostic equipment recommended by the manufacturer. Clear the DTC and recheck. Check the windshield wiper park position sensor circuit according to the electrical manual. Clear the DTC and recheck. If the DTC remains, there may be an internal windshield wiper motor failure, check and replace if necessary. | |
| B1C4623 | Rear window washer switch stuck | Refer to the electrical manual and check the electrical circuit of the rear window washer switch. Check switch operation and replace if necessary. | |
| B1C4723 | Windshield washer switch stuck | Refer to the electrical manual and check the windshield washer switch circuit. Check switch operation and replace if necessary. | |
| B1C4823 | Headlight Switch Stuck | Refer to the electrical manual and check the headlight switch circuit. Check switch operation and replace if necessary. | |
| B1C5024 | Ignition switch stuck in starter position | Refer to the electrical manual and check the ignition switch circuit. Check switch operation and replace if necessary. | |
| B1C5329 | Intermittent windshield wiper data signal | Refer to the electrical manual and check the windshield wiper switch circuit. Check switch operation and replace if necessary. | |
| B1C5512 | Horn relay | Horn relay coil circuit - short to battery | Refer to the electrical manuals and check the horn relay circuit. Repair if necessary. |
| B1C5514 | Horn relay | Horn relay circuit short circuit to ground or open circuit | Refer to the electrical manuals and check the horn relay circuit. Repair if necessary. |
| B1C5612 | Horn relay output circuit | Horn relay output circuit short circuit to battery | Refer to the electrical manuals and check the horn relay. Replace/repair as needed. |
| B1C5614 | Horn relay output circuit | Horn relay output circuit short circuit to ground or open circuit | Refer to electrical manuals and check power fuse and horn relay circuit. Repair if necessary. |
| B1C5712 | Passive Start Ignition Relay Coil Circuit | Passive Start Ignition Relay Coil Short to + Battery | No action required, clear/ignore DTC. |
| B1C5714 | Passive Start Ignition Relay Coil Circuit | Passive Start Ignition Relay Output Circuit Short to Ground or Open Circuit | No action required, clear/ignore DTC. |
| B1C5812 | Power Window Relay Coil Circuit | Power Window Relay Coil Circuit Short to Battery | Refer to the electrical manuals and check the power window relay circuit. Replace/repair as needed. |
| B1C5814 | Power Window Relay Coil Circuit | Power window relay coil circuit short to ground or open circuit | Refer to the electrical manuals and check the power window relay circuit. Repair if necessary. |
| B1C5912 | Power Window Relay Output Circuit | Power Window Relay Output Circuit Short to Battery | Refer to the electrical manuals and check the power window relay output circuit. Replace/repair as needed. |
| B1C5914 | Power Window Relay Output Circuit | Power window relay output circuit short to ground or open circuit | Refer to the electrical manuals and check the power and output circuit fuses and the power window relay output circuit. Repair if necessary. |
| B1C6012 | Position Lamp Relay Output Circuit | A lamp failure can also cause DTC B1B0187 to be stored in the body control module and DTC C1A5564 to be stored in the parking brake module. A malfunction in this circuit that sets DTC B1C6012 can also cause automatic transmission shifting problems. Check if the tail/brake lamps are of the correct type, installed correctly, or for faults, including a short circuit in the lamp filaments. Refer to the electrical manuals and check the parking light relay output circuit. Replace/repair as needed. | |
| B1C6014 | Position Lamp Relay Output Circuit | Position lamp relay output circuit short to ground or open circuit | Refer to electrical manuals and check power and output circuit fuses and side lamp relay output circuit. Repair if necessary. |
| B1C6112 | Battery Saver Relay Coil Circuit | Short circuit to + battery circuit coil relay battery saver | Refer to the electrical manuals and check the battery saver relay circuit. Replace/repair as needed. |
| B1C6114 | Battery Saver Relay Coil Circuit | Battery Saver Relay Coil Circuit Short to Ground or Open Circuit | Refer to the electrical manuals and check the battery saver relay circuit. Repair if necessary. |
| B1C6212 | Battery Saver Relay Output Circuit | Short to battery + battery charger relay output circuit | Refer to the electrical manuals and check the battery saver relay circuit. Replace/repair as needed. |
| B1C6214 | Battery Saver Relay Output Circuit | Battery Saver Relay Output Circuit Short to Ground or Open Circuit | Refer to the electrical manuals and check the power circuit fuse and battery saver relay output circuit. Repair if necessary. |
| B1C6312 | Driver's door lock relay, coil circuit | Refer to the electrical manuals and check the driver's door lock relay circuit. Replace/repair as needed. | |
| B1C6314 | Driver's door lock relay, coil circuit | Refer to the electrical manuals and check the driver's door lock relay circuit. Repair if necessary. | |
| B1C6412 | Driver's Door Lock Relay Output Circuit | Refer to the electrical manuals and check the driver's door lock relay circuit. Replace/repair as needed. | |
| B1C6414 | Driver's Door Lock Relay Output Circuit | Refer to the electrical manuals and check the driver's door lock relay output circuit. Repair if necessary. | |
| B1C6512 | Interlock relay coil circuit | Refer to the electrical manuals and check the central locking relay circuit. Replace/repair as needed. | |
| B1C6514 | Interlock relay coil circuit | Refer to the electrical manuals and check the central locking relay circuit. Repair if necessary. | |
| B1C6612 | Interlock relay output circuit | Refer to the electrical manuals and check the central locking relay circuit. Replace/repair as needed. | |
| B1C6614 | Interlock relay output circuit | Refer to the electrical manuals and check the output circuit of the central locking relay. Repair if necessary. | |
| B1C6712 | Driver door unlock relay, coil circuit | Refer to the electrical manuals and check the driver's door unlock relay circuit. Replace/repair as needed. | |
| B1C6714 | Driver door unlock relay, coil circuit | Refer to the electrical manuals and check the driver's door unlock relay circuit. Repair if necessary. | |
| B1C6812 | Driver Door Lock Relay Output Circuit | Refer to the electrical manuals and check the driver's door unlock relay circuit. Replace/repair as needed. | |
| B1C6814 | Driver Door Lock Relay Output Circuit | Refer to the electrical manuals and check the output circuit of the driver's door lock release relay. Repair if necessary. | |
| B1C6912 | Passenger Door Unlock Relay Coil Circuit | Refer to the electrical manuals and check the passenger door unlock relay circuit. Replace/repair as needed. | |
| B1C6914 | Passenger Door Unlock Relay Coil Circuit | Refer to the electrical manuals and check the passenger door unlock relay circuit. Repair if necessary. | |
| B1C7012 | Passenger Door Lock Relay Output Circuit | Refer to the electrical manuals and check the passenger door unlock relay circuit. Replace/repair as needed. | |
| B1C7014 | Passenger Door Lock Relay Output Circuit | Refer to the electrical manuals and check the passenger door unlock relay output circuit. Repair if necessary. | |
| B1C7312 | Double lock relay coil circuit | Refer to electrical manuals and check double lock relay circuit (in the presence of). Replace/repair as needed. | |
| B1C7314 | Double lock relay coil circuit | Refer to electrical manuals and check double lock relay circuit (in the presence of). Repair if necessary. | |
| B1C7412 | Dual lock relay output circuit | Refer to electrical manuals and check double lock relay circuit (in the presence of). Replace/repair as needed. | |
| B1C7414 | Dual lock relay output circuit | Refer to electrical manuals and check double lock relay circuit (in the presence of). Repair if necessary. | |
| B1C7612 | Windshield Wiper Fast Relay Coil Circuit | Windshield wiper fast relay coil circuit short to battery | Refer to the electrical manuals and check the windshield wiper fast relay circuit. Replace/repair as needed. |
| B1C7614 | Windshield Wiper Fast Relay Coil Circuit | Windshield wiper fast relay coil circuit short circuit to ground or open circuit | Refer to the electrical manuals and check the windshield wiper fast relay circuit. Repair if necessary. |
| B1C7712 | Rear Wiper Fast Relay Coil Circuit | Rear window wiper fast relay coil circuit short circuit to +battery | Refer to the electrical manuals and check the rear window wiper fast relay circuit. Replace/repair as needed. |
| B1C7714 | Rear Wiper Fast Relay Coil Circuit | Rear window wiper fast relay coil circuit short circuit to ground or open circuit | Refer to the electrical manuals and check the rear window wiper fast relay circuit. Repair if necessary. |
| B1C7812 | High Pressure Washer Relay Coil Circuit | Washer relay high pressure/windshield washer pump circuit short to battery | Refer to the electrical manuals and check the relay circuit for the appropriate washer pump. Repair if necessary. |
| B1C7814 | High Pressure Washer Relay Coil Circuit | High pressure washer relay/windshield washer pump coil circuit short circuit to ground or open circuit | Refer to the electrical manuals and check the relay circuit for the appropriate washer pump. Repair if necessary. |
| B1C7912 | Windshield washer pump relay output circuit | Windshield washer pump relay output circuit short to battery | Refer to the electrical manuals and check the windshield washer pump relay circuit. Replace/repair as needed. |
| B1C7914 | Windshield washer pump relay output circuit | Windshield washer pump relay output circuit short to ground or open circuit | Refer to the electrical manuals and check the power circuit fuse and windshield washer pump relay output circuit. Repair if necessary. |
| B1C8012 | Rear window washer pump relay coil circuit | Rear window washer relay coil circuit short circuit to +battery | Refer to the electrical manuals and check the rear window washer pump relay circuit. Repair if necessary. |
| B1C8014 | Rear window washer pump relay coil circuit | Rear window washer pump relay coil circuit short circuit to ground or open circuit | Refer to the electrical manuals and check the rear window washer pump relay circuit. Repair if necessary. |
| B1C8112 | Rear window washer pump relay output circuit | Rear window washer relay output circuit short to battery | Refer to the electrical manuals and check the rear window washer pump relay circuit. Replace/repair as needed. |
| B1C8114 | Rear window washer pump relay output circuit | Rear window washer pump relay output circuit short to ground or open circuit | Refer to the electrical manuals and check the power circuit fuse and rear window washer pump relay output circuit. Repair if necessary. |
| B1C8212 | Headlight washer relay A | Headlight washer relay output circuit short to voltage | Refer to electrical manuals and check headlight washer relay circuit (in the presence of). Repair if necessary. |
| B1C8214 | Headlight washer relay A | Headlight washer relay output circuit short to voltage | Refer to electrical manuals and check headlight washer relay circuit (in the presence of). Repair/replace if necessary. |
| B1C8312 | Heated rear window relay coil circuit | Heated rear window relay coil circuit short to battery | Refer to the electrical manuals and check the heated rear window relay circuit. Repair if necessary. |
| B1C8314 | Heated rear window relay coil circuit | Heated rear window relay coil circuit short to ground or open circuit | Refer to the electrical manuals and check the heated rear window relay circuit. Repair if necessary. |
| B1C8412 | Heated rear window relay output circuit | Heated rear window relay output circuit short to battery | Refer to the electrical manuals and check the heated rear window relay circuit. Repair/replace if necessary. |
| B1C8414 | Heated rear window relay output circuit | Heated rear window relay output circuit short to ground or open circuit | Refer to the electrical manuals and check the power circuit fuse and the heated rear window relay output circuit. Repair if necessary. |
| B1C8512 | Automatic Headlight Switch Illumination Relay Coil Circuit Circuit | Auto Headlight Switch Backlight Relay Coil Circuit Short to Battery | Refer to electrical manuals and check auto headlight switch backlight relay circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C8514 | Automatic Headlight Switch Illumination Relay Coil Circuit Circuit | Auto headlight switch backlight relay coil circuit short circuit to ground or open circuit | Refer to electrical manuals and check auto headlight switch backlight relay circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C8612 | Auto headlight switch illumination relay output circuit | Auto headlight switch backlight relay output circuit short to voltage | Refer to electrical manuals and check auto headlight switch backlight relay circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C8614 | Auto headlight switch illumination relay output circuit | Auto headlight switch illumination relay output circuit short circuit to ground or open circuit | Refer to the electrical manuals and check the fuse and output circuit of the auto headlight switch backlight relay (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C8812 | Reversing lamp relay coil circuit | Reversing light relay coil circuit short circuit to battery | Refer to the electrical manuals and check the reverse light relay circuit. Repair if necessary. |
| B1C8814 | Reversing lamp relay coil circuit | Reversing light relay coil circuit short to ground or open circuit | Refer to the electrical manuals and check the reverse light relay circuit. Repair if necessary. |
| B1C8912 | Auxiliary taillight relay output circuit | Auxiliary High Beam Relay Output Circuit Short to Battery | Refer to electrical manuals and check auxiliary high beam relay circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C8914 | Auxiliary taillight relay output circuit | Auxiliary High Beam Relay Output Circuit Short to Ground or Open Circuit | Refer to electrical manuals and check auxiliary high beam relay output circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9012 | Auxiliary rear light relay coil circuit | Auxiliary High Beam Relay Coil Circuit Short to Battery | Refer to electrical manuals and check auxiliary high beam relay coil circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9014 | Auxiliary rear light relay coil circuit | Auxiliary High Beam Relay Coil Circuit Short to Ground or Open Circuit | Refer to electrical manuals and check auxiliary high beam relay coil circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9112 | Fuel Filler Lock Relay Coil Circuit | Refer to electrical manuals and check fuel door lock relay circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9114 | Fuel Filler Lock Relay Coil Circuit | Refer to electrical manuals and check fuel door lock relay circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9212 | Fuel filler cap relay output circuit | Refer to electrical manuals and check fuel door lock relay circuit (in the presence of). Repair/replace if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9214 | Fuel filler cap relay output circuit | Refer to electrical manuals and check fuse and output circuit of door/fuel filler lock relay (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9312 | Fuel filler door release relay coil circuit | Refer to electrical manuals and check fuel door/flap door release relay circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9314 | Fuel filler door release relay coil circuit | Refer to electrical manuals and check fuel door/flap door release relay circuit (in the presence of). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9412 | Fuel filler door release relay output circuit | Refer to electrical manuals and check fuel door/flap door release relay circuit (in the presence of). Repair/replace if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9414 | Fuel filler door release relay output circuit | Refer to electrical manuals and check fuse and output circuit of door/fuel filler door release relay (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. | |
| B1C9511 | Electrical circuit for auxiliary marker lights | Auxiliary position lamps circuit - short to ground, overload or overheating | Refer to the electrical manuals and check the auxiliary position lamp circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9515 | Electrical circuit for auxiliary marker lights | Additional marker lights circuit short to + battery or open circuit under load | Refer to the electrical manuals and check the auxiliary position lamp circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9611 | Anti-theft LED | Theft Deterrent System LED Circuit Short to Ground or Shorted | Refer to electrical manuals and check the anti-theft alarm LED circuit (in the presence of volumetric sensors). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9615 | Anti-theft LED | Theft deterrent LED circuit short to battery or open circuit under load | Refer to electrical manuals and check the anti-theft alarm LED circuit (in the presence of volumetric sensors). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9811 | Electric circuit of the left bending headlight | Left Cornering Headlight Circuit Short to Ground, Overload or Overdrive | Refer to electrical manuals and check left cornering light circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9815 | Electric circuit of the left bending headlight | Cornering left headlight circuit short to battery or open circuit under load | Refer to electrical manuals and check left cornering light circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9911 | Right cornering headlight circuit | Right Cornering Headlight Circuit Short to Ground, Overload or Overdrive | Refer to electrical manuals and check right cornering headlight circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1C9915 | Right cornering headlight circuit | Right cornering headlight circuit short to battery or open circuit under load | Refer to electrical manuals and check right cornering headlight circuit (in the presence of). Replace/repair as needed. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1D0011 | Left low beam | Low Beam Lamp Left Circuit Short to Ground, Overload or Overdrive | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0015 | Left low beam | Low beam left lamp circuit short to battery or open circuit under load | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0111 | Right low beam | Right Low Beam Lamp Circuit Short to Ground, Overload or Overdrive | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0115 | Right low beam | Right dipped beam lamp circuit short to battery or open circuit under load | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0211 | Left High Beam Circuit | Left High Beam Lamp Circuit Short to Ground, Overload or Overdrive | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0215 | Left High Beam Circuit | High Beam Left Lamp Circuit Short to battery or open circuit under load | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0311 | Right High Beam Circuit | Right High Beam Lamp Circuit Short to Ground, Overload or Overdrive | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0315 | Right High Beam Circuit | Right high beam lamp circuit short to battery or open circuit under load | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0414 | Top Tailgate Unlock Circuit | Refer to the electrical manuals and check the tailgate release relay circuit. Repair if necessary. | |
| B1D0511 | Lower Tailgate Unlock Circuit | Refer to the electrical manuals and check the tailgate circuit. Repair if necessary. | |
| B1D0515 | Lower Tailgate Unlock Circuit | If there is no customer complaint about tailgate operation, no action is required, clear/ignore the DTC. If the back door does not operate properly, refer to the electrical manuals and check the back door circuit. Repair if necessary. | |
| B1D0611 | Left turn signal | Left Turn Signal Circuit Short to Ground, Overload or Overdrive | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0615 | Left turn signal | Left turn signal circuit short to battery or open circuit under load | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0711 | Right direction indicator | Turn signal circuit right - short to ground, overload or overheat | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0715 | Right direction indicator | Right turn signal circuit short to battery or open circuit under load | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0811 | Trailer left turn signal circuit | Trailer Left Turn Signal Circuit Short to Ground, Overload or Overdrive | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0815 | Trailer left turn signal circuit | Trailer left turn signal circuit short to battery or open circuit under load | Refer to the electrical manuals and check the left circuit. Repair if necessary. |
| B1D0911 | Trailer right turn signal circuit | Trailer right turn signal circuit short to ground, overload or overdrive | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D0915 | Trailer right turn signal circuit | Trailer right turn signal circuit short to battery or open circuit under load | Refer to the electrical manuals and check the right circuit. Repair if necessary. |
| B1D1011 | Air suspension control circuit | Air suspension control circuit short to ground, overload or overdrive | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1D1015 | Air suspension control circuit | Air suspension control circuit short to battery or open circuit under load | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1D1211 | Electric supply circuit of volumetric sensors | Volumetric sensors power supply circuit: short to ground, overload or overload | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1D1215 | Electric supply circuit of volumetric sensors | Volumetric sensors power supply circuit short to + battery or open circuit under load | Refer to electrical manuals and check the circuit (in the presence of volumetric sensors). Repair if necessary. If there is no such device, check the vehicle configuration. Erase/ignore DTC. |
| B1D1311 | Interior lighting circuit A | Interior lighting circuit A short to ground, overload or overheat | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1D1315 | Interior lighting circuit A | If there is no customer complaint about interior lighting operation, no action is required, clear/ignore the DTC. If the interior lighting does not work properly, refer to the electrical manuals and check the circuit. Repair if necessary. | |
| B1D1411 | Interior lighting circuit B | Interior lighting circuit B - short to ground, overload or overheat | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1D1415 | Interior lighting circuit B | If there is no customer complaint about interior lighting operation, no action is required, clear/ignore the DTC. If the interior lighting does not work properly, refer to the electrical manuals and check the circuit. Repair if necessary. | |
| B1D1512 | Electrical circuit for general opening/closing | General open/close circuit short circuit to battery | Refer to the electrical manuals and check the circuit. Repair if necessary. |
| B1D1749 | Self powered siren (BBUS) | Siren BBUS: communication error | Siren BBUS is not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is only required for vehicles with a BBUS siren. If there is a device, see the status description "Communication loss" at the beginning of this table. |
| B1D1787 | Self powered siren (BBUS) | Loss of communication with BBUS siren | Siren BBUS is not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is only required for vehicles with a BBUS siren. If there is a device, see the status description "Communication loss" at the beginning of this table. |
| B1D1887 | Volumetric sensor | Volumetric sensor - no response signal: Error receiving the response signal pulse | The volumetric sensor is not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is required only for vehicles with a volumetric sensor. If there is a device, see the status description "Communication loss" at the beginning of this table. |
| B1D3523 | Hazard Switch Stuck | Check the operation of the alarm switch, refer to the electrical manual and check its circuit. Repair/replace as needed. | |
| B1D3613 | Turn signal switch | Indicator switch connection circuit - open circuit | Refer to the electrical manuals and check the switch circuit. Replace/repair as needed. |
| B1D3713 | Wiper switch wiring circuit | Wiper switch connection circuit - open circuit | Refer to the electrical manuals and check the switch circuit. Replace/repair as needed. |
| B1D3813 | Windshield wiper motor | Windshield wiper motor circuit open circuit | Refer to the electrical manuals and check the switch circuit. Replace/repair as needed. |
| B1D3913 | Rear window wiper motor | Rear window wiper motor circuit open circuit | Refer to the electrical manuals and check the switch circuit. Replace/repair as needed. |
| B1D4013 | Light switch connection circuit | Light switch connection circuit open circuit | Refer to the electrical manuals and check the switch circuit. Replace/repair as needed. |
| B1D4113 | Bonnet Limit Sensor Wiring Circuit | Refer to the electrical manuals and check the sensor circuit. Replace/repair as needed. | |
| B1D4213 | Driver's Door Lock Wiring Circuit | Refer to the electrical manuals and check the lock circuit. Replace/repair as needed. | |
| B1D4313 | Passenger Door Lock Wiring Circuit | Refer to the electrical manuals and check the lock circuit. Replace/repair as needed. | |
| B1D4413 | Electrical circuit for connecting the lock of the left rear door | Refer to the electrical manuals and check the lock circuit. Replace/repair as needed. | |
| B1D4513 | Right Rear Door Lock Wiring Circuit | Refer to the electrical manuals and check the lock circuit. Replace/repair as needed. | |
| B1D4613 | Tailgate Lock Wiring Circuit | Refer to the electrical manuals and check the lock circuit. Replace/repair as needed. | |
| B1D9749 | tilt sensor | Lost Communication with Tilt Sensor | Siren B.B.U.S (with tilt sensor) not installed on all modifications (custom installation). Failure logging is prohibited by the CCF file, but misconfiguration of the CCF file can log a DTC by mistake. Repair is required only for vehicles with a BBUS siren, on which the operation of the tilt sensor is abnormal. If there is a device, see the status description "Communication loss" at the beginning of this table. |
| U007388 | Shutdown of bus A of data transmission of the control module | Check if the latest update file is installed (is in the GTR system). If the passenger/driver classification system (OCS) not installed, reconfigure the secondary restraint system control module (RCM) using the diagnostic system approved by the manufacturer. Clear all DTCs and road test the vehicle. If the problem persists, contact your dealer's technical support for more information. It is strictly forbidden to replace any components and parts to fix this problem. If the OCS is installed in the vehicle, check for other DTCs related to the auxiliary restraint system. | |
| U015587 | Loss of communication with IPK | See status description "Communication loss" at the beginning of this table. | |
| U016487 | Loss of communication with the ATC module | See status description "Communication loss" at the beginning of this table. | |
| U030055 | Internal control module software incompatibility | Customize the module configuration (modules), using an approved diagnostic system. | |
| U1A0387 | Vehicle configuration parameter | Lost Communication with BCM/RCM: No Message | See status description "Communication loss" at the beginning of this table. |
| U1A1448 | CAN initialization failure | ACM control software failure | Configure the module using an approved diagnostic system. |
| U200168 | Reduced system performance | Reduced operability of systems in the ABS/BCM/TEL module Event information Voltage greater than 16.8 (- 0,4) At or less than 8.6 (+ 0,4) In for more than 30 seconds | Check for ABS DTCs Refer to the appropriate section in your workshop manual. |
Diagnostics of data transmission for media systems (MOST)
Basic recommendations are given in the section "Description and principle of operation": In particular, it is stated that you should not attempt to repair fiber optic cables. Additional Precautions:
- Avoid touching the bare ends of fiber optic cables as this may contaminate them.
- Whenever you disconnect a fiber optic cable, cover the electrical connectors with plugs to keep dust out.
- Do not expose fiber optic cables to heat.
- Do not bend fiber optic cables with a bend radius of less than 25 mm.
- Do not use laser pointers to test the ability of a fiber optic cable to transmit light. A special tester is available for MOST network modules and fiber optic wiring harnesses to diagnose and verify the ability of fiber optic cables to transmit light.
Tester for MOST
Before connecting the tester to the mains, turn on the unit and check if the red indicator lights up meals included.
If not, the battery must be replaced before using the tester.
Self test 2+0
1. Set the connector selection switch to the 2+0 position.
2. Select a beep or LED on the tester, depending on which indication you want to receive.
3. Turn on the tester and check the operation of the power indicator.
4. Insert the supplied 2+0 loopback test lead into the 2+0 connector housing until it clicks into place.
5. Click on the red test button in the center of the tester.
6. Depending on the selection you made in step 2, the tester will either beep or turn green.
If the tester continues to beep or the indicator does not turn off after releasing the test button, this does not indicate a malfunction, but indicates that the signal feedback in the tester stops when the loopback test lead is disconnected.
Self test 2+4
Perform a self-test in the same way as the 2+0 test, but use the 2+4 loopback test lead and set the jack select switch to the 2+4 position.
Car diagnostics
CAUTION: Make sure that the tester is not connected to the MOST network when the tester is turned on or switching between 2+0 and 2+4 modes, as the tester emits a short flash of light that may cause network failure.
1. Use the prescribed diagnostic system or scanner to retrieve DTCs.
2. Set the connector selection switch to the 2+0 position.
3. Disconnect the intermediate connector of the fiber optic cable and connect the male part to the tester connector on the top of the unit using the included adapter.
4. Turn on the tester and check the operation of the power indicator.
5. Set the LED/horn switch to LED position.
6. Turn the ignition key to the ON position.
7. If the green LED is on, this indicates that a signal has been received, i.e. indicates the functioning of the first half of the optical ring.
8. If the green LED is OFF, this indicates that no signal has been received, ie. the first half of the optical ring is NOT FUNCTIONAL.
As a result, a ring breaking code must be registered. Use the ' prescribed diagnostic system to troubleshoot and clear the code. As a result, a ring break code must be registered. Use the prescribed diagnostic system to troubleshoot and clear the code.
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