Audio Amplifier Module (AAM) Fault Code (Freelander 2)

Audio Amplifier Module

NOTE: If a unit or component is likely to fail and the vehicle is still under manufacturer's warranty, refer to the warranty manual before replacing the component (section B1.2) or determine if there is any previously approved special program in operation.

NOTE: Universal Scan Tools may not read the listed codes or may 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).

NOTE: Always use a digital multimeter when performing voltage or resistance tests (DMM) accurate to three decimal places and with a valid calibration certificate. When testing resistance, be sure to consider the resistance of the DMM leads.

NOTE: Before starting diagnostic programs using troubleshooting tests, check and correct major problems.

NOTE: Inspect the connectors for signs of water intrusion and their pins for damage and (or) traces of corrosion.

NOTE: If DTCs are logged and there is no problem after performing troubleshooting tests, an intermittent problem may be the cause. Be sure to check for loose connections and corroded contacts.

Description and operation

For a detailed description of the audio amplifier system, see the corresponding section «Description and operation» repair manuals. For more information, see the chapter: Audio system (415-01 Infotainment system, Description and operation).

DTC	Description	Possible reason	Action
B1A01-11	Speaker #1	Front left tweeter circuit short circuit to ground	Refer to electrical circuit diagrams and check tweeter front left speaker circuit for short to ground
B1A01-12	Speaker #1	Front left tweeter circuit - short circuit to power	Refer to electrical circuit diagrams and check tweeter front left speaker circuit for short to power
B1A01-13	Speaker #1	Front left tweeter circuit open circuit	Refer to electrical circuit diagrams and check front left tweeter circuit for open circuit
B1A01-1A	Speaker #1	Front left tweeter circuit - resistance below threshold	Refer to electrical circuit diagrams and check front left tweeter circuit for foreign load from other speaker circuits
B1A01-49	Speaker #1	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A02-11	Speaker #2	Front right tweeter circuit - short circuit to ground	Refer to electrical circuit diagrams and check tweeter front right speaker circuit for short to ground
B1A02-12	Speaker #2	Front right tweeter circuit - short circuit to power	Refer to electrical circuit diagrams and check tweeter front right speaker circuit for short to power
B1A02-13	Speaker #2	Front right tweeter circuit open circuit	Refer to electrical circuit diagrams and check front right tweeter circuit for open circuit
B1A02-1A	Speaker #2	Front right tweeter circuit - resistance below threshold	Refer to electrical circuit diagrams and check front right tweeter circuit for foreign load from other speaker circuits
B1A02-49	Speaker #2	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A03-11	Speaker #3	Front left woofer circuit - short to ground	Refer to electrical circuit diagrams and check woofer front left speaker circuit for short to ground
B1A03-12	Speaker #3	Front left woofer circuit - short circuit to power	Refer to electrical circuit diagrams and check woofer front left speaker circuit for short to power
B1A03-13	Speaker #3	Front left woofer circuit - open circuit	Refer to electrical circuit diagrams and check front left woofer circuit for open circuit
B1A03-1A	Speaker #3	Front left woofer circuit - resistance below threshold	Refer to electrical circuit diagrams and check front left woofer circuit for foreign load from other speaker circuits
B1A03-49	Speaker #3	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A04-11	Speaker #4	Front right woofer circuit - short to ground	Refer to electrical circuit diagrams and check woofer front right speaker circuit for short to ground
B1A04-12	Speaker #4	Front right woofer circuit - short circuit to power	Refer to electrical circuit diagrams and check woofer front right speaker circuit for short to power
B1A04-13	Speaker #4	Front right subwoofer circuit open circuit	Refer to electrical circuit diagrams and check front right woofer circuit for open circuit
B1A04-1A	Speaker #4	Front right woofer circuit - resistance below threshold	Refer to electrical circuit diagrams and check front right woofer circuit for foreign load from other speaker circuits
B1A04-49	Speaker #4	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A05-11	Speaker #5	Rear left speaker circuit - short to ground	Refer to electrical circuit diagrams and check rear left speaker circuit for short to ground
B1A05-12	Speaker #5	Rear left speaker circuit short circuit to power	Refer to electrical circuit diagrams and check rear left speaker circuit for short to power
B1A05-13	Speaker #5	Rear left speaker circuit open circuit	Refer to electrical circuit diagrams and check rear left speaker circuit for open circuit
B1A05-1A	Speaker #5	Rear left speaker circuit - resistance below threshold	Refer to electrical circuit diagrams and check rear left speaker circuit for foreign load from other speaker circuits
B1A05-49	Speaker #5	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A06-11	Speaker #6	Rear right speaker circuit short circuit to ground	Refer to electrical circuit diagrams and check right rear speaker circuit for short to ground
B1A06-12	Speaker #6	Rear right speaker circuit short to power	Refer to electrical circuit diagrams and check right rear speaker circuit for short to power
B1A06-13	Speaker #6	Rear right speaker circuit open circuit	Refer to electrical circuit diagrams and check right rear speaker circuit for open circuit
B1A06-1A	Speaker #6	Rear right speaker circuit - resistance below threshold	Refer to electrical circuit diagrams and check right rear speaker circuit for foreign load from other speaker circuits
B1A06-49	Speaker #6	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A07-11	Speaker #7	Surround back left speaker circuit short circuit to ground	Refer to electrical circuit diagrams and check surround back left speaker circuit for short to ground
B1A07-12	Speaker #7	Surround back left speaker circuit - short to power	Refer to electrical circuit diagrams and check surround back left speaker circuit for short to power
B1A07-13	Speaker #7	Surround back left speaker circuit open circuit	Refer to electrical circuit diagrams and check surround back left speaker circuit for open circuit
B1A07-1A	Speaker #7	Surround back left speaker circuit - impedance below threshold	Refer to electrical circuit diagrams and check surround back left speaker circuit for foreign load from other speaker circuits
B1A07-49	Speaker #7	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A08-11	Speaker No. 8	Surround right rear speaker circuit - short to ground	Refer to electrical circuit diagrams and check surround back right speaker circuit for short to ground
B1A08-12	Speaker No. 8	Surround back right speaker circuit short circuit to power	Refer to electrical circuit diagrams and check surround back right speaker circuit for short to power
B1A08-13	Speaker No. 8	Surround right rear speaker circuit open circuit	Refer to electrical circuit diagrams and check surround back right speaker circuit for open circuit
B1A08-1A	Speaker No. 8	Surround back right speaker circuit - impedance below threshold	Refer to electrical circuit diagrams and check surround back right speaker circuit for foreign load from other speaker circuits
B1A08-49	Speaker No. 8	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A09-11	Speaker No. 9	Center speaker circuit short to ground	Refer to electrical circuit diagrams and check center speaker circuit for short to ground
B1A09-12	Speaker No. 9	Center speaker circuit short to power	Refer to electrical circuit diagrams and check center speaker circuit for short to power
B1A09-13	Speaker No. 9	Center speaker circuit open circuit	Refer to electrical circuit diagrams and check center speaker circuit for open circuit
B1A09-1A	Speaker No. 9	Center speaker circuit - impedance below threshold	Refer to electrical circuit diagrams and check center speaker circuit for foreign load from other speaker circuits
B1A09-49	Speaker No. 9	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A10-11	Speaker #10	Left subwoofer circuit short circuit to ground	Refer to electrical circuit diagrams and check subwoofer left speaker circuit for short to ground
B1A10-12	Speaker #10	Left subwoofer circuit short to power	Refer to electrical circuit diagrams and check subwoofer left speaker circuit for short to power
B1A10-13	Speaker #10	Left subwoofer circuit - open circuit	Refer to electrical circuit diagrams and check left subwoofer circuit for open circuit
B1A10-1A	Speaker #10	Left subwoofer circuit - impedance below threshold	Refer to electrical circuit diagrams and check subwoofer left speaker circuit for foreign load from other speaker circuits
B1A10-49	Speaker #10	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1A11-11	Speaker No. 11	Right subwoofer circuit short circuit to ground	Refer to electrical circuit diagrams and check right subwoofer circuit for short to ground
B1A11-12	Speaker No. 11	Right subwoofer circuit - short to power	Refer to electrical circuit diagrams and check right subwoofer speaker circuit for short to power
B1A11-13	Speaker No. 11	Right subwoofer circuit - open circuit	Refer to electrical circuit diagrams and check right subwoofer speaker circuit for open circuit
B1A11-1A	Speaker No. 11	Right subwoofer circuit - resistance below threshold	Refer to electrical circuit diagrams and check right subwoofer speaker circuit for foreign load from other speaker circuits
B1A11-49	Speaker No. 11	Internal malfunction of electronic equipment	Install a new module, see the new module/component installation note at the beginning of the DTC index
B1D84-11	Headphone panel 1	Headphone panel left or right signal circuit 1 short to ground	Refer to electrical circuit diagrams and test headphone panel 1 left or right signal circuit for short to ground
B1D84-13	Headphone panel 1	Headphone panel left or right signal circuit 1: open circuit	Refer to electrical circuit diagrams and test headphone panel 1 left or right signal circuit for open circuit
B1D84-23	Headphone panel 1	Headphone panel control line circuit 1 - signal stuck at low voltage	Refer to electrical circuit diagrams and check headphone panel 1 control line for short to ground. Check if the switch/button is stuck
B1D85-11	Headphone panel 2	Headphone panel left or right signal circuit 2 short to ground	Refer to electrical circuit diagrams and test headphone panel 2 left or right signal circuit for short to ground
B1D85-13	Headphone panel 2	Headphone panel left or right signal circuit 2: open circuit	Refer to electrical circuit diagrams and test headphone panel 2 left or right signal circuit for open circuit
B1D85-23	Headphone panel 2	Headphone Pad Control Line 2 Circuit Low Voltage Stuck	Refer to electrical circuit diagrams and check headphone panel 2 control line for short to ground. Check if the switch/button is stuck
B1D86-11	Headphone panel 3	Headphone panel left or right signal circuit 3 short to ground	This vehicle has only two headphone panels. If this DTC is logged, check/correct the vehicle configuration file to list only two panels using the manufacturer approved diagnostic system
B1D86-13	Headphone panel 3	Headphone panel left or right signal circuit 3: open circuit	This vehicle has only two headphone panels. If this DTC is logged, check/correct the vehicle configuration file to list only two panels using the manufacturer approved diagnostic system
B1D86-23	Headphone panel 3	Headphone panel control line circuit 3: signal stuck at low voltage	This vehicle has only two headphone panels. If this DTC is logged, check/correct the vehicle configuration file to list only two panels using the manufacturer approved diagnostic system
B1D87-11	Headphone panel 4	Headphone panel left or right signal circuit 4 short to ground	This vehicle has only two headphone panels. If this DTC is logged, check/correct the vehicle configuration file to list only two panels using the manufacturer approved diagnostic system
B1D87-13	Headphone panel 4	Headphone panel left or right signal circuit 4: open circuit	This vehicle has only two headphone panels. If this DTC is logged, check/correct the vehicle configuration file to list only two panels using the manufacturer approved diagnostic system
B1D87-23	Headphone panel 4	Headphone panel control line circuit 4: signal stuck at low voltage	This vehicle has only two headphone panels. If this DTC is logged, check/correct the vehicle configuration file to list only two panels using the manufacturer approved diagnostic system
U3000-05	Control unit: system programming errors	Software incompatibility. The version of the local configuration file is different than expected	Reconfigure the audio amplifier as an existing control unit using the manufacturer's recommended diagnostic system
U3000-42	Control unit: general memory failure	General memory failure	Reconfigure the audio amplifier unit to indicate it as an existing control module using the manufacturer's approved diagnostic system. Clear the DTC, turn the ignition off and on again, then read the DTCs. If the DTC is set again, the cause may be a defective audio amplifier module - install a new module. See the new unit/component installation note at the beginning of the DTC index
U3000-44	Control unit: error in data memory	Data memory failure	Reconfigure the audio amplifier unit to indicate it as an existing control module using the manufacturer's approved diagnostic system. Clear the DTC, turn the ignition off and on again, then read the DTCs. If the DTC is set again, the cause may be a defective audio amplifier module - install a new module. See the new unit/component installation note at the beginning of the DTC index
U3000-55	Control block	Incorrect vehicle configuration data received	Check/update vehicle configuration file using manufacturer approved diagnostic system
U3000-87	Control block	Missing message	Check the central junction box for DTCs and refer to the DTC index. For more information, please refer to the chapter: Communication Network (418-00 Module communication network, Diagnostics and checks). Check the infotainment system module for DTCs for the vehicle and MOST network configuration file and refer to the appropriate DTC index. Perform MOST/CAN network tests using the manufacturer approved diagnostic system
U3003-16	Battery voltage	Circuit voltage below limit	Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system
U3003-17	Battery voltage	Circuit voltage over limit	Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system