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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 52/B0108: Short To Battery 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. Reconnect negative battery cable.
  2. Turn ignition switch to ACC or ON position. Measure voltage between ground and Yellow/Red wire (circuit P+) of passenger-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 passenger-side air bag module and air bag sensor assembly.
  3. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect air bag sensor assembly connector C6 to air bag sensor assembly. Connect jumper wire between Yellow/Red wire (circuit P+) and Yellow/Green wire (circuit P-) of passenger-side air bag squib harness connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or 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 ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 52/B0108 is not displayed, go to next step. If DTC 52/B0108 is displayed, replace air bag sensor assembly.
  4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect passenger-side air bag module connector. Connect negative battery cable. Wait at least 2 seconds. Turn ignition switch to ACC or 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 ACC or ON position. Wait at least 20 seconds. Retrieve DTCs. See RETRIEVING CODES  under DIAGNOSTICS. If DTC 52/B0108 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 52/B0108 is displayed, replace passenger-side air bag module.
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