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Circuit/System Verification

WARNING: This page is about a different car, the 2010 Saturn Outlook, 2010 GMC Acadia, 2010 Chevrolet Traverse, and 2010 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the following BCM DTCs are not present:
    • U1814
    • U2099
    • B1428
    • B1370
    • B1380
    • B1440
    • B1441
    2. IMPORTANT: Because of normal system communications between the TDM and ECM, any theft deterrent B-codes must be diagnosed prior to the diagnosis of P-codes.
  2. Perform the 10-Minute Immobilizer Relearn procedure. Refer to Immobilizer System Component Programming . The ECM should successfully complete the password learn and the vehicle should start.
    • If the ECM does not complete the learn or vehicle starting remains disabled, replace the ECM.
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