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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the driver information center (DIC) switch.
  2. Verify a test lamp does not illuminate when connected between the DIC switch return circuit and ground.
    • If the test lamp illuminates, check the DIC switch signal circuits for a short to voltage. If all circuits test normal, replace the IPC.
  3. If all circuits tests normal, test or replace the DIC switch.
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