Circuit/System Verification
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition » On / Vehicle » In Service Mode
- Perform the scan tool control function:Rear Defogger »On and Off
Verify the component turns On and Off:E18 Rear Defogger Grid
- If the component does not turn On and Off
Refer to: Circuit/System Testing
- If the component turns On and Off
- If the component does not turn On and Off
- All OK.