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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC 53/B0105: Short In Passenger-Side Air Bag Module Squib Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Toyota Celica. 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.
  2. Release shorting spring mechanism on air bag sensor assembly connector. See RELEASING SHORTING SPRING  under DIAGNOSTICS. Measure resistance between Yellow/Red wire (circuit P+) and Yellow/Green wire (circuit P-) of air bag sensor assembly side of passenger-side air bag module harness connector. If resistance is less than one megohm, repair or replace harness or connector between passenger-side air bag module and air bag sensor assembly. If resistance is more than one megohm, go to next step.
  3. Connect air bag sensor assembly connector C6 to air bag sensor assembly. Reconnect 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 codes. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 53/B0105 is displayed, replace air bag sensor assembly. If DTC 53/B0105 is not displayed, go to next step.
  4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect passenger-side air bag module harness connector. Reconnect 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 codes. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 53/B0105 is displayed, replace passenger-side air bag module. If DTC 53/B0105 is not displayed, the system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT .
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