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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1556 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U1500, U1511, U1512, or U1513 >> Circuit/System Verification

Circuit/System Verification

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  1. Verify that DTC U1500 31 is not set,
    • If the DTC is set, replace the appropriate window motor.
  2. Verify that DTC U1511 is not set in the BCM.
    • If DTC U1511 is set in the BCM, perform the Compass Malfunction Test.
  3. Perform the Window Malfunction Test.
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