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Home >> Toyota >> 2003 >> RAV4 Base, AWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC B0105/53: Short In Passenger-Side Air Bag Module Squib Circuit >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM. Access air bag sensor assembly and disconnect center harness connector. See AIR BAG SENSOR ASSEMBLY  under REMOVAL & INSTALLATION. Access passenger-side air bag module and disconnect harness connector. See DUAL-STAGE PASSENGER-SIDE AIR BAG MODULE  under REMOVAL & INSTALLATION. Release short spring on air bag sensor assembly center connector. See RELEASING SHORTING SPRING  under DIAGNOSTICS. Measure resistance between Yellow/Red wire and Yellow/Green wire on harness side of passenger-side air bag module harness connector. See WIRING DIAGRAMS . If resistance is more than one megohm, go to next step. If resistance is less than one megohm, repair or replace harness or connector between passenger-side air bag module and air bag sensor assembly.
  2. Reconnect air bag sensor assembly center 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 DTCS  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 DTCS  under DIAGNOSTICS. If DTC 53/B0105 is not displayed, go to next step. If DTC 53/B0105 is displayed, replace air bag sensor assembly.
  3. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect passenger-side air bag module 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 DTCS  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 DTCS  under DIAGNOSTICS. If DTC 53/B0105 is not displayed, system is functioning properly at this time. Check for intermittent air bag system fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 53/B0105 is displayed, replace passenger-side air bag module.
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