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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Vehicle Access >> Diagnostic Information and Procedures >> DTC B3130 >> Circuit/System Testing

Circuit/System Testing

  1. Disconnect the IP fuse block and connect a test lamp from the door unlock relay control circuit terminal A3 in connector X3 to ground.
  2. Ignition ON, verify that the test lamp does not illuminate.
    • If the test lamp illuminates test the control circuit for a short to voltage. If the circuit tests normal replace the BCM.
  3. If the circuits test normal replace the IP fuse block.
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