LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2013 >> Encore Base, AWD >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 96 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> Lane Departure Warning System Malfunction >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

WARNING: This page is about a different car, the 2016 Chevrolet Trax and 2016 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Refer to Diagnostic Aids before performing Circuit/System Verification.

  1. Ignition ON.
  2. Verify that DTC B356A is not set.
    • If the DTC is not set 
  3. Verify that DTC B0987 is not set.
    • 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.

    • If the parameter is Normal 
  5. Verify the scan tool Lane Departure Warning Switch Status parameter changes between Open and Closed while pressing and releasing the lane departure warning switch.
    • If the parameter does not change between Open and Closed 

      Refer to Lane Departure Warning Switch Malfunction in Circuit/System Testing.

    • If the parameter changes between Open and Closed 
  6. Verify the scan tool Lane Departure Warning Switch indicator turns on and off while pressing and releasing the lane departure warning switch.
    • If the indicator does not turn on and off 

      Refer to Lane Departure Warning Switch Indicator Malfunction in Circuit/System Testing.

    • If the indicator turns on and off 
  7. Verify the area of the K109 Frontview Camera Module for contamination.
    • If it needs to be cleaned 

      Clean the windshield.

    • If it does not need to be cleaned 
  8. All OK.