WARNING: To prevent accidental airbag deployment and possible personal injury, the backup power source must be discharged before any component of the secondary airbag restraint system is repaired or replaced (SRS). TO DISCHARGE THE BACKUP POWER SUPPLY, DISCONNECT THE GROUND WIRE FROM THE BATTERY AND WAIT TWO MINUTES. FAILURE TO FOLLOW THIS INSTRUCTION MAY RESULT IN INJURY.
CAUTION: Diagnosis by substituting a component from another vehicle is NOT allowed. Substitution of control modules does not guarantee confirmation of the fault and, in addition, may cause additional faults in the vehicle being tested and/or in the vehicle from which the modules are removed.
NOTE: In accordance with the law, if the restraint system fails, it is not allowed to repair the wiring of the electrical circuits of the airbag module. Offer "REPAIR the electrical circuit", usually involves replacing the wiring harness.
1. Visually inspect for obvious signs of damage.
Electrical Factors:
- Battery status and charging
- Check that the electrical connectors for the airbag circuits are connected correctly.
- Wiring harness
- Module (And) airbags
- Verify that the auxiliary restraint system control module (RCM) installed correctly.
- Fuse (And)
- Sensor (And)
- Pretensioner (And)
- Control (s) lamp (s)
2. If there is an obvious cause for a problem you identified or described by a customer, resolve it before proceeding with the next steps (if possible).
3. If the cause is not visually obvious, check the auxiliary restraint system control module (RCM) and seat load classification system module (OCS) for DTCs and refer to the Diagnostic Trouble Code Index (DTC).
Due to the complexity of the system and the potential for damage/injury, it is preferable to use a manufacturer approved diagnostic system for diagnosis.
If a manufacturer approved diagnostic system is not available, use a scan tool to retrieve DTCs and refer to the DTC Index.
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