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Home >> Suzuki >> 2006 >> Grand Vitara Premium, RWD, Standard >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Body Electrical Control System >> Diagnostic Information And Procedures >> DTC B1150 (No. 1150): Air Bag Communication Circuit Malfunction >> DTC Troubleshooting
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DTC Troubleshooting

DTC CHART

Step Action YES NO
1  Check air bag communication circuit 
  1. Turn ignition switch to OFF position.
  2. Disconnect connector from SDM. Refer to SDM REMOVAL AND INSTALLATION: ADVANCED AIR BAG or SDM REMOVAL AND INSTALLATION: EXCEPT ADVANCED AIR BAG .
  3. Disconnect connector from BCM.
  4. Turn ignition switch to ON position.
  5. Measure voltage between "G47-22", "G46-15" or "G46-8" terminal of SDM connector and vehicle body ground.

Is voltage 0 V? 		 Go to Step 2. Short to power supply in air bag communication circuit.
2  Check air bag communication circuit 
  1. Turn ignition switch to OFF position.
  2. Connect connectors to BCM.
  3. Turn ignition switch to ON position.
  4. Measure voltage between "G30-19" terminal of BCM connector and vehicle body ground.

Is voltage 4 - 6 V? 		 Go to Step 3. Short to ground in air bag communication circuit. If OK, substitute a known-good BCM and recheck.
3  Check air bag communication circuit 
  1. Measure voltage between "G47-22", "G46-15" or "G46-8" terminal of SDM connector and vehicle body ground.

Is voltage 4 - 6 V? 		 Substitute a known-good SDM and recheck. Open or high resistance in air bag communication circuit.
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