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Home >> Chevrolet >> 2018 >> Traverse High Country >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Driver Assistance Systems) >> Diagnostic Information and Procedures >> Lane Departure Warning System Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 Chevrolet Traverse. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTC B356A is not set.
    • Go to next step: If the DTC is not set 
  3. Verify that DTC B0987 is not set.
    • Go to next step: If the DTC is not set 
  4. Verify the scan tool Frontview Camera System Status parameter is Normal.
    • If the parameter is Undefined or Malfunction 

      Refer to Diagnostic Aids.

    • Go to next step: If the parameter is Normal 
  5. Verify the scan tool Lane Departure Warning Switch Status parameter changes between Active and Inactive when pressing the lane departure warning switch.
    • If the parameter does not change between Active and Inactive 

      Refer to DTC B356A .

    • Go to next step: If the parameter changes between Active and Inactive 
  6. Verify the scan tool Lane Departure Warning Indicator turns ON and OFF when commanding the Lane Departure Warning Indicator On and Off with a scan tool.
    • If the indicator does not turn on and off 

      Refer to DTC B0987 .

    • Go to next step: If the indicator turns on and off 
  7. All OK.
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