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Circuit/System Testing

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the driver door lock connector. Verify the DTC resets.
  2. If the DTC does not reset, replace the driver door lock assembly.
  3. Test for a short to ground in the driver door ajar circuit.
  4. If all circuits/connections test normal, replace the BCM.
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