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Home >> Chevrolet >> 2014 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B356A: Vehicle Direction Warning Switch >> Circuit/System Verification

Circuit/System Verification

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  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 (below).

    • If the parameter changes 
  3. All OK.
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