FixVault
Home › Chevrolet › 2013 › Spark LS, Standard Trans › Repair and Diagnosis › Body & Frame › Windows › Fixed And MOVEABLE Window System › Diagnostic Information and Procedures › Rear Window Defogger Malfunction › Circuit/System Verification

Circuit/System Verification

  1. Engine running.
  2. Verify the E18 Rear Defogger Grid turns ON and OFF when commanding the Rear Defogger Active and Inactive with a scan tool
    • If the E18 Rear Defogger Grid does not turn ON and OFF 

      Refer to Circuit/System Testing below - Rear Window Defogger Grid Malfunction

    • If the E18 Rear Defogger Grid does turn ON and OFF 
  3. Verify rear defog indicator turns ON and OFF when commanding the Rear Defog Indicator Active and Inactive with a scan tool.
    • If the rear defog indicator does not turn ON and OFF 

      Refer to Circuit/System Testing below - Rear Defog Indicator Malfunction

    • If the rear defog indicator does turn ON and OFF 
  4. Verify the scan tool Rear Defogger Status parameter changes between Off and On when pressing the rear window defogger switch.
    • If the parameter does not change 

      Refer to Circuit/System Testing below - Rear Defogger Switch Malfunction.

    • If the parameter changes 
  5. All OK.
About FixVault