Power Window wiring?
Posted: Wed May 30, 2018 7:43 am
So on my 1980 528i the power windows have stopped working. They starting going intermittent for the last few days and then they completely died. There is no power input to the two little breakers underneath near the steering column (feed by red with green stripe wires if I recall). To get the windows back up last night I just jumped 12V to the input of the window circuit breakers and the windows went up fine. So the problem is the power feed. So looking in the Haynes manual there looks to be a upsteam relay (plus a few intermediate connections) in the feed circuit. But I do not see any window relays under the dash or in the fuse box.
Since I do not see any power window relay in the fuse box itself I presume the window power relay is one of the relays hanging off of the side of the fuse box? Can anyone confirm this and if so which one is it? I will start debugging further when I get home from work.
Oh and everything else seems to still work in the car (sunroof, fans, lights, rear window defogger) so the problem seems to be isolated to the power window system.
Walt B.
'80 528i
Since I do not see any power window relay in the fuse box itself I presume the window power relay is one of the relays hanging off of the side of the fuse box? Can anyone confirm this and if so which one is it? I will start debugging further when I get home from work.
Oh and everything else seems to still work in the car (sunroof, fans, lights, rear window defogger) so the problem seems to be isolated to the power window system.
Walt B.
'80 528i