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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 75 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC 85/B1167: Short To Ground In Left-Side Head Impact Air Bag Module Squib Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Toyota Sequoia. 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. Measure resistance between ground and Yellow/Violet wire (circuit ICL+) of air bag sensor assembly side of left-side head impact air bag module squib harness connector. See WIRING DIAGRAMS . If resistance is less than one megohm, repair or replace harness or connector between left-side head impact air bag module and air bag sensor assembly. If resistance is more than one megohm, go to next step.
  3. Reconnect air bag sensor assembly connector A19 (left connector) to air bag sensor assembly. Connect jumper wire between Yellow/Violet wire (circuit ICL+) and Yellow/Orange wire (circuit ICL-) of air bag sensor assembly side of left-side head impact air bag module 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 85/B1167 is not displayed, go to next step. If DTC 85/B1167 is displayed, replace air bag sensor assembly.
  4. Turn ignition switch to LOCK position. Disconnect negative battery cable. Wait at least 90 seconds. Reconnect left-side head impact air bag module 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 85/B1167 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 85/B1167 is displayed, replace left-side head impact air bag module.
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