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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC B2971 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the A23D door latch assembly-driver.
  2. Ignition ON, verify the scan tool Door Key Cyl Unlock Switch parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 9 for a short to ground. If the circuits test normal, replace the K9 body control module.
  3. If all circuits tests normal, test or replace the A23D door latch assembly-driver.
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