NOTE If a DTC other than DTC B is displayed at same time as DTC B repair fault indicated by DTC other than DTC B before using this procedure

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Diagnostic Procedure

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 air bag sensor assembly connector A20, terminal No. 5 (circuit IG2, Black/Orange wire). See Fig. 22 . Measure voltage between ground and air bag sensor assembly connector A20, terminal No. 6 (circuit IG1, Black/Red wire). If voltage in both tests is 10-14 volts, go to next step. If either voltage is not 10-14 volts, check battery and charging system operation.

3. Turn ignition switch to OFF position. Disconnect connect negative battery cable. Activate air bag system. See ACTIVATING SYSTEM under DISABLING & ACTIVATING AIR BAG SYSTEM. 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. Repeat at least 5 times. Retrieve DTCs. See RETRIEVING CODES under DIAGNOSTICS. If DTC 31/B1100 is displayed, replace air bag sensor assembly. If DTC 31/B1100 is not displayed, system is functioning properly at this time. Check for intermittent fault. See AIR BAG WARNING LIGHT INTERMITTENT .

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