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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 932 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC P0513 >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. 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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