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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac Torrent and 2007 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clear the DTC, ignition OFF, park lamp switch OFF, disconnect the park lamp relay underhood fuseblock terminal C2 pin 8 and underhood fuseblock terminal C3 pin 16.
  2. Verify a test lamp illuminates between the negative battery terminal and the right park lamp relay control circuit check the underhood fuseblock terminal C2 pin 8.
    • If the test lamp does not illuminate replace the underhood fuseblock.
  3. Test for a short to voltage in the park lamp relay control circuit.
    • If all circuits/connections test normal, replace the BCM.
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