Diagnostic Procedure
WARNING: This page is about a different car, the 2004 Toyota Matrix and 2004 Toyota Corolla. 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. Access air bag sensor assembly and inspect for proper connection of harness connectors. See AIR BAG SENSOR ASSEMBLY under REMOVAL & INSTALLATION. If air bag sensor assembly connectors are not properly connected, reconnect connectors and perform system operation check. See SYSTEM OPERATION CHECK . If air bag sensor assembly connectors are properly connected, go to next step.
- Reconnect air bag sensor assembly connectors. Reconnect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ON position. Clear DTCs. See CLEARING CODES under DIAGNOSTICS. Turn ignition switch to LOCK position. Wait at least 20 seconds. Turn ignition switch to ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 24/B1135 is displayed, go to next step. If DTC 24/B1135 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT under DIAGNOSTIC TESTS.
- Turn ignition switch to LOCK position. Disconnect negative battery cable. With air bag sensor assembly connectors connected to air bag sensor assembly, use ohm meter to check for continuity between any 2 of 3 air bag sensor assembly connector disconnection detection pins. See Fig 1. If there is continuity, replace air bag sensor assembly. If there is not continuity, repair or replace air bag sensor connector(s).