Diagnostic Procedure
WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM.
- Measure resistance between ground and terminal D+ (Yellow/Black wire) on spiral cable side of upper spiral cable connector. See Fig 1. If resistance is more than one megohm, go to next step. If resistance is less than one megohm, go to step 5.
- Reconnect air bag sensor assembly connectors. Connect jumper wire between terminal D+ (Yellow/Black wire) and terminal D- (Yellow wire) on spiral cable side of upper spiral cable connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 11/B0102 is displayed, replace air bag sensor assembly. If DTC 11/B0102 is not displayed, go to next step.
- Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect spiral cable upper connector (to driver-side air bag module). Reconnect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 11/B0102 is displayed, replace driver-side air bag module. If DTC 11/B0102 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT .
- Disconnect spiral cable lower connector. Measure resistance between ground and terminal D+ (Yellow/Black wire) on spiral cable side of upper spiral cable connector. See Fig 1. If resistance is more than one megohm, go to next step. If resistance is less than one megohm, replace spiral cable.
- Measure resistance between ground and Yellow/Black wire of air bag sensor assembly side of lower spiral cable connector. If resistance is more than one megohm, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If resistance is less than one megohm, repair or replace harness between air bag sensor assembly and spiral cable.