@rollerbones I just had an ah ha moment. You said something previously about a ground. I just took the mirror apart and the harness has two grounds. One isnāt connected to any after the harness. Bet thatās the issue. About to jumper it out now.
I just checked continuity. Iām satisfied that my connections in the door harness are good. My wiring is very simple. From the tail harness I used pins 9-12. 10 and 11 are can ihs 9 is power(connected to lighter) and 12 is to the mirror led. I tapped into pin 21 @ door connector for each mirror...
I bought mirrors with blind spot. I believe last I checked I had the correct door harness but I think Iām going to look and check tomorrow. I do remember adding wiring but I think that was for the turn signals. I did not add a ground so maybe thatās it.
Iām pretty sure I checked continuity from door harness up to mirror. I ran wire from pin 12 of taillight to pin 21 of vehicle side of door harness. And I modified my door harness to have connections for turn signal and bsm. Iām lost now lbvs
Curious is that the correct spot for can ihs. I plugged mine into one behind the rear driver seat and itās a green module. Donāt know if that matters or not