Quote:
Originally Posted by Humble Leader
if the rear window is not rolled up all the way the rear defog and wiper / washer will not operate. the light will not illuminate. I doubt the switch in the dash is the issue unless you had your dash apart. more than likely the vehicle thinks the rear window is not all the way up
try this rear window reset procedure. should be the same for 5th gens. it's unlikely the rear wiper/washer AND the rear/mirror defog both stopped working at the same time. I'm betting this is an issue with the vehicle not realizing the window is closed. what work was done in the rear?
now if your wiper is actually working but not the defog then you probably have a switch/wiring issue. there are a lot of youtube videos on how to access that defog switch, it is not difficult. remove centre console, side radio trim pieces, two bolts and pull out the HVAC controls. you may actually not need to remove centre console but it might make it easier
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Wiper works perfectly. Mirror heat works perfectly.
Zero Rear Defog available. Entire rear window sees no heat.
I had the question of what controls (allows/dis-allows) the wiper when the window isn't all the way up. Gotta be a mechanical switch? If so, does that control Defog? And if so, does this switch cut off not only power to the window but power to the switch/LED?
The Window Reset procedure only talks about the window operation, if that somehow went haywire. The instruction doesn't mention resetting where power goes or not.
Tomorrow I'm bringing it to my trusted shop.
Wishing I could jump start their diagnosis.
Seems the switch for Defog isn't getting power, indicated by LED not lit.