I purchased my 2014 F150 4x4 Supercab 3.5L Ecoboost V6 engine used a few years back.
When I pulled the windows sticker from Ford it reads it had equipment group 301A, XLT convenience group, and XLT Chrome package.
My mirrors did not have heat symbol so I just figured it didn't have them. I noticed the rear defrost/heated mirror button a while back and started to dig into whether or not I have heated mirrors.
I have the button, it illuminates, but the mirrors do not heat up. My mirrors don't have symbols, but when I pulled off glass they have the leads going into glass. No voltage at glass.
Next I checked all three fuses below with the following results.
32 - 40A - Rear window defroster relay power, Heated mirror relay power
-not broken
54 - 5A - Run/start – 4×4 module. Back-up lamps, Roll stability control /Anti-lock brake system. Trailer tow battery charge relay coll. Rear window defroster relay coll. Front camera washer relay coll (SVT Raptor)
-not broken & voltage on both ends of fuse
56 - 15A - Heated mirrors
-not broken, no voltage on either side of fuse
I have solid back window without defogger. When I checked there is spot to plug into it and I tried to close that circuit with lead test, still no voltage at fuse 56 after.
I need help!
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