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Home >> Buick >> 2018 >> Enclave Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U1500, U1511, U1512, or U1513: Inter-Device Dedicated Bus 1 Short, Electronic Control Unit (ECU) Performance General Checksum Failure, Inter-device Dedicated Bus Lost Communication With Device >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  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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