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Door Open Switch Malfunction - Front

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 inoperative door latch assembly.
  2. Ignition OFF, interior lamps OFF, doors CLOSED, test for less than 5.0 ohms between the ground circuit and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool door open switch parameter is INACTIVE.
    • If the scan tool displays ACTIVE, test the signal circuit for a short to ground. If the circuit tests normal, replace the appropriate door control module.
  4. Install a 3A fused jumper wire between the signal circuit and ground. Verify the scan tool door open switch parameter is ACTIVE.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the appropriate door control module.
  5. If all circuits test normal, test or replace the inoperative door latch assembly.
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