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Home >> Buick >> 2018 >> Enclave Essence, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B356A: Vehicle Direction Warning Switch Circuit Short to Ground >> Circuit/System Verification
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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. Ignition ON.
  2. Verify the scan tool Lane Departure Warning Switch Status parameter while pressing and releasing the lane departure warning switch. The parameter should change between Open and Closed.
    • If the parameter does not change 

      Refer to Circuit/System Testing.

    • If the parameter changes 
  3. Verify the driver information center displays and adjusts forward collision alert setting while repeatedly pressing and releasing the forward collision switch. The setting should change cycle between far, medium, near, and off.
    • If the display does not change 

      Refer to Circuit/System Testing.

    • If the display changes 
  4. All OK.