Failure Mode L
Failure Mode L: Poor Ground at SRS Unit or Unit Mounting Bolts1. Before disconnecting any part of the SRS wire harness, install the short connector(s) (RED) on the airbag(s).
Test Harness B Installation And Testing:
2. Connect Test Harness B (O7MAZ-SPOO5OO) between the SRS unit and SRS main harness 18-P connector.
Test Harness B Pinout:
3. Check for continuity between the B5 terminal and body ground, and the B15 terminal and body ground.
- If there is continuity at either terminal, the SRS unit is faulty. Replace and recheck the voltages according to the appropriate Failure Mode Diagnostic Chart. Failure Mode Diagnostic Chart
- If there is no continuity at either terminal, the SRS unit ground, the SRS unit component grounds or the SRS main harness is faulty. Check the grounds (check wire and control unit mounting bolts) and, if necessary, replace the SRS main harness. Recheck the voltages according to the appropriate Failure Mode Diagnostic Chart. Failure Mode Diagnostic Chart