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Home >> Chevrolet >> 2015 >> Impala LS, 2.5L Eng VIN L >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B356A: Vehicle Direction Warning Switch Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Sonic. 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 changes between Open and Closed when pressing and releasing the lane departure warning switch.
    • If the parameter does not change between Active and Inactive 

      Refer to Circuit/System Testing.

    • If the parameter changes between Active and Inactive 
  3. Verify the driver information center displays and adjusts the forward collision alert sensitivity setting while repeatedly pressing and releasing the forward collision alert switch.
    • If the forward collision alert sensitivity setting cannot be changed 

      Refer to Circuit/System Testing.

    • If the forward collision alert sensitivity setting can be changed 
  4. All OK.
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