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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. Disconnect all the courtesy lamps voltage supply circuit lamps related components. Refer to the circuit/system verification for all components that contain the courtesy lamps voltage supply circuit lamps. Verify the DTC B2615 does not set
    • If the DTC resets then test for a short to ground in the courtesy lamp voltage supply circuit lamps circuit. If the circuit/connections test normal replace the BCM.
  2. Reconnect each component one at a time and test for the DTC B2615. If the DTC resets then replace that component.
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