Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Fixed And MOVEABLE Windows System) >> Diagnostic Information and Procedures >> Rear Window Defogger Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine running, observe the scan tool Rear Defogger Switch parameter while pressing the heated rear window switch. The parameter should change from Inactive to Active.
    • If the value does not change, replace the HVAC control.
  2. Observe the operation of the rear window defogger indicator while pressing the heated rear window switch. The indicator should turn ON or OFF each time the heated rear window switch is pressed.
    • If the indicator does not turn ON or OFF with each switch press, replace the HVAC control.
  3. Command the Rear Defog ON and OFF with a scan tool, the rear defogger grid should turn ON or OFF while changing between the commanded states.
scientia non olet · About Mike's Workshop Manuals