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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 76 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC 46/B0118: Short To Battery In Left-Side Air Bag Module Squib Circuit >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Toyota Prius. 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 ON position. Measure voltage between ground and Yellow/Red wire (circuit SFL+) of air bag sensor assembly side of left-side air bag module harness connector. If voltage is zero volt, go to next step. If voltage is not zero volt, repair or replace harness or connector between left-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 A17 (left connector) to air bag sensor assembly. Connect jumper wire between left-side air bag module harness connector Yellow/Red wire (circuit SFL+) and Yellow/Green wire (circuit SFL-). 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 46/B0118 is not displayed, go to next step. If DTC 46/B0118 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 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 46/B0118 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT . If DTC 46/B0118 is displayed, replace left-side air bag module.
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