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Home >> Hummer >> 2007 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 1242 (Object Detection System) >> Diagnostic Information and Procedures >> DTC B009A >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the left hood hinge actuator.
  2. Ignition ON, test for less than 1 volt between the high control circuit terminal A and ground.
    • If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the PIDS module.
  3. Test for less than 1 volt between the low control circuit terminal B and ground.
    • If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the PIDS module.
  4. Ignition OFF, test for infinite resistance between the high control circuit terminal A and ground.
    • If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the PIDS module.
  5. Test for infinite resistance between the low control circuit terminal B and ground.
    • If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the PIDS module.
  6. Test for less then 1 ohm of resistance between the high control circuit terminal A and ground.
    • If not within the specified range, test the circuit for an open/high resistance.
  7. Test for less then 1 ohm of resistance between the low control circuit terminal B and ground.
    • If not within the specified range, test the circuit for an open/high resistance.
  8. If all circuits test normal, replace the hood hinge actuator.
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