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Circuit/System Testing

WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the A23D door latch assembly-driver.
  2. Ignition ON, verify the scan tool Driver Door Key Cylinder 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 S79D window switch - driver.
  3. If all circuits tests normal, test or replace the A23D door latch assembly-driver.
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