Where might I fix rear window defrost & heated right mirror. Some connector?

There would be relays to check that are in one of the fuse boxes.

Thanks. Relays good, fuses too. Seems neither would produce loss of only one heated mirror and rear defog. Could switch on dash have a connector behind it that separates into three directions? Seems some junction would be most likely to cause this type of issue.

Or is perhaps the problem the switch and connections in the HVAC control panel? It seems the only place that could cause these two systems to fail. I cannot find any other location that the right heated mirror and rear defogger systems would intersect.

Makes sense. May just want to move some connectors around to make a better contact. I've seen where wiring looks new but for some reason not make a connection. Always at the connectors.

Thanks. I just this morning pulled panel, reset connectors. No change. I haven't found color codes yet for specific circuit wires, so I don't know which connector feeds the rear defog/htd mirrors. Anyone know? The full HVAC panel is a bit costly to replace only to find out if it is the issue. If I know which connector, I'll do some cleaning etc. to try to improve circuit. (left to right 1 is empty, 2 beige, 3 black, 4 brown).

You would want to test that HVAC control panel with a digital multi meter. Like you said it would be costly to just try one.

Thx. My meter doesn't have tiny probes, I'll check around for one. rh

Update: black connector contains the heated mirrors and rear defog circuits - also temp and likely other. All pins good. All connectors tight. Cleaned with electronic cleaner. No change. Not a bit of power goes through circuits.

Finding a problem like this is a head ache. Follow the flow of power.

I am in same boat Same truck same package same right mirror and rear defogger going out of my mind.

Did anyone ever have any luck with the right mirror and rear defrost ?

Looking for same