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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Door Lock System & Door Handles) >> Diagnostic Information and Procedures >> Power Door Locks Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, observe the scan tool Rear Doors Lock Cmd. and Rear Doors Unlock Cmd. parameters while using the driver and passenger door lock switches. The parameters should change from Off to On.
  2. Command all doors to LOCK and UNLOCK with a scan tool. All of the vehicle doors should LOCK and UNLOCK.
    • If a front door does not LOCK or UNLOCK, refer to Circuit/System Testing  for DDM/FPDM Malfunction.
    • If either LR, RR, middle or rear doors do not UNLOCK, refer to Circuit/System Testing  for Door Unlock Relay Malfunction.
    • If either LR, RR, middle or rear doors do not LOCK, refer to Circuit/System Testing  for Door Lock Relay Malfunction.
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