Circuit/System Verification
- 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 or OFF
Refer to Rear Window Defogger Malfunction .
- Go to next step: If the E18 Rear Defogger Grid turns ON and OFF
- If the E18 Rear Defogger Grid does not turn ON or 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 both E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger do not become warm
Refer to Both Outside Heated Mirrors Inoperative .
- If only one E17 Outside Rearview Mirror Glass does not become warm
Refer to Single Outside Heated Mirror Inoperative .
- Go to next step: If the E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger become warm
- If both E17D Outside Rearview Mirror Glass-Driver and the E17P Outside Rearview Mirror Glass-Passenger do not become warm
- All OK.