Test 8A: Passenger-Side Curtain Squib Circuit Open
WARNING: This page is about a different car, the 2002 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Prior to performing any air bag system test, go to PRETEST INSPECTION & DIAGNOSTIC PROCEDURE
under DIAGNOSTICS. Perform TEST VER-1: AIR BAG VERIFICATION TEST
after all repairs unless otherwise directed.
Air Bag Control Module (ACM) harness connectors C1 and C2 are identical, except for wire colors and terminal usage. See WIRING DIAGRAMS .
Air Bag Control Module (ACM) harness connectors C1 and C2 are identical, except for wire colors and terminal usage. See WIRING DIAGRAMS .
- Turn ignition switch to ON position. Using DRBIII, determine if PASSENGER-SIDE CURTAIN SQUIB CIRCUIT OPEN is active or stored Diagnostic Trouble Code (DTC). If PASSENGER-SIDE CURTAIN SQUIB CIRCUIT OPEN is active DTC, go to next step. If PASSENGER-SIDE CURTAIN SQUIB CIRCUIT OPEN is stored DTC, go to TEST 1B: REPAIRING STORED CODES .
- Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Access passenger-side curtain air bag and disconnect harness connector. See CURTAIN (HEAD IMPACT) AIR BAG MODULE under REMOVAL & INSTALLATION. Connect appropriate SRS load tool to passenger-side curtain air bag harness connector. Turn ignition switch to ON position. Connect negative battery cable. Using DRBIII, read ACM DTCs. If DRBIII displays PASSENGER-SIDE CURTAIN SQUIB CIRCUIT OPEN, go to next step. If DRBIII does not display PASSENGER-SIDE CURTAIN SQUIB CIRCUIT OPEN, replace passenger-side curtain air bag module.
- Turn ignition switch to OFF position. Disconnect negative battery cable and wait at least 2 minutes. Access ACM and disconnect harness connector C1. See AIR BAG CONTROL MODULE (ACM) under REMOVAL & INSTALLATION. Connect appropriate SRS load tool adapter to ACM harness connector C1. Disconnect SRS load tool from passenger-side curtain air bag harness connector. Measure resistance in Light Blue/Yellow wire (line 1 circuit) between load tool adapter and passenger-side curtain air bag harness connector. See WIRING DIAGRAMS . Measure resistance in Light Blue/White wire (line 2 circuit) between load tool adapter and passenger-side curtain air bag harness connector. If resistance is less than one ohm in both circuits, replace ACM. If resistance is more than one ohm in either circuit, repair open in appropriate circuit.