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

Diagnostic Procedure

1. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. Reconnect negative battery cable.

2. Turn ignition switch to ON position. Measure voltage between ground and Yellow-Red wire (circuit

2001 ACCESSORIES/SAFETY EQUIPMENT Toyota - Air Bag Restraint Systems

SFR+) on air bag sensor assembly side of right-side air bag squib harness connector. See WIRING DIAGRAMS . If voltage is zero volt, go to next step. If voltage is not zero volt, repair or replace harness or connector between side air bag harness connector and air bag sensor assembly.

3. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect air bag sensor assembly connector A21 to air bag sensor assembly. Connect jumper wire between Yellow-Red wire (circuit SFR+) and Yellow-Green wire (circuit SFR-) on air bag sensor assembly side of right-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 42-B0113 is not displayed, go to next step. If DTC 42-B0113 is displayed, replace air bag sensor assembly.

4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect right-side air bag squib 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 42-B0113 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 42-B0113 is displayed, replace side air bag module.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment