who in pittsburgh knows the harness in and out?

[evandael]

long story short i've got an 86 sedan harness going into an 87 coupe

i've got it mostly laid out but am having trouble with the underdash wiring. specifically i cannot find the brake light switch connector, and i feel like i'm missing the under dash wiring subharness.


yes i've checked the ETMs. i'm in a rut. if you can help me, i'll pay you; beer, pizza, actual money, whatever.

[nomansland92]

I wonder how much that harness would be different to my 88? Might be able to complare them and figure something out

[ron1999]

only tip i can give you is download the exact electrical schemes of the donor model and the recipient model and make a translation table for each wire.

you'll end up with 90% identical, but those 10% change would kill you for finding them out with try-and-error.

the good thing is that both cars are pre-facelift models, so its going to be pretty close.

this was my strategy when adopted the E36 M42 harness into my E30 M40 car

[John in VA]

Here's the factory repair manual, if it helps:

https://www.bmwtechinfo.com/repair/main/561en/index.htm