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Home >> Toyota >> 1998 >> Avalon XLS >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Air Bag Restraint System >> Diagnostic Tests >> DTC 41: Short To Ground In Right-Side Air Bag Module Squib Circuit >> Diagnostic Procedure

Diagnostic Procedure

  1. Disable air bag system. See DISABLING SYSTEM  under DISABLING & ACTIVATING AIR BAG SYSTEM.
  2. Measure resistance between ground and air bag sensor assembly side of right-side air bag squib harness connector Yellow/Red wire (circuit SFR+). If resistance is more than one megohm, go to next step. If resistance is less than one megohm, go to step 5).
  3. Reconnect air bag sensor assembly connector C18 to air bag sensor assembly. Connect jumper wire between air bag sensor assembly side of right-side air bag squib harness connector Yellow/Red wire (circuit SFR+) and Yellow/Green wire (circuit SFR-). See WIRING DIAGRAMS . 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 DIAGNOSIS & TESTING. 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 DIAGNOSIS & TESTING. If DTC 41 is not displayed, go to next step. If DTC 41 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 ACC or ON position. Wait at least 20 seconds. Clear DTCs. See CLEARING CODES  under DIAGNOSIS & TESTING. 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 DIAGNOSIS & TESTING. If DTC 41 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 41 is displayed, replace side air bag module.
  5. Disconnect right-side air bag module sub wire harness connector located under right front seat. See WIRING DIAGRAMS . Measure resistance between ground and air bag sensor assembly side of right-side air bag squib harness connector Yellow/Red wire (circuit SFR+). If resistance is more than one megohm, repair or replace harness or connector between air bag sensor assembly and sub wire harness. If resistance is less than one megohm, repair or replace sub wire harness.
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