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Circuit/System Testing

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect all the courtesy lamps voltage supply circuit lamp components on the circuit.
  2. Verify that DTC B2615 00, B2615 01, DTC B2615 02, and/or DTC B2615 04 does not reset.
    • If the DTC resets, test for a short to voltage, short to ground, or an open in the courtesy lamps supply voltage circuit. If the circuit/connections test normal, replace the BCM, driver door switch, and passenger door switch as applicable.
  3. Reconnect each component one at a time and test for DTC B2615 00, B2615 01, DTC B2615 02, and/or DTC B2615 04.
    • If the DTC resets, replace that particular component.
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