Circuit/System Verification
WARNING: This page is about a different car, the 2013 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Engine running.
- Verify the E18 Rear Defogger Grid turns ON and OFF when commanding the Rear Defogger On and Off with a scan tool.
- If the E18 Rear Defogger Grid does not turn ON and OFF
Refer to Rear Window Defogger Malfunction .
- If the E18 Rear Defogger Grid turns ON and OFF
- If the E18 Rear Defogger Grid does not turn ON and OFF
- Verify the E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger become warm when commanding the Rear Defogger On with a scan tool.
- If the E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger do not become warm
Refer to Circuit/System Testing .
- If both E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger become warm
- If the E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger do not become warm
- All OK.