NOTE During testing if DTCs other than DTC B are displayed disregard them

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Diagnostic Procedure

1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG

2004 ACCESSORIES/SAFETY EQUIPMENT Toyota - Air Bag Restraint Systems

SYSTEM.

2. Measure resistance between Yellow/Red wire (circuit SFL+) and Yellow/Green wire (circuit SFL-) of left side air bag squib harness connector. See WIRING DIAGRAMS . If resistance is less than one ohm, go to next step. If resistance is more than one ohm, repair or replace harness or connector between left side air bag squib harness connector and air bag sensor assembly.

3. Reconnect air bag sensor assembly connector A19 to air bag sensor assembly. Connect jumper wire between Yellow/Red wire (circuit SFL+) and Yellow/Green wire (circuit SFL-) of left side air bag squib harness connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to 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 ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 48/B0116 is not displayed, go to next step. If DTC 48/B0116 is displayed, replace air bag sensor assembly.

4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect left side air bag module connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to 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 ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 48/B0116 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 48/B0116 is displayed, replace side air bag module.

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