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Home >> Chevrolet >> 2020 >> Sonic LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Driver Assistance Systems) >> Diagnostic Information And Procedures >> Forward Collision Alert System Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the lane departure warning switch 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 Circuit/System Testing below.

    • Go to next step: If the indicator turns ON and OFF 
  3. All OK.
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