AC and washer delete, now no interior lights, power locks,hazards or 13button OBC

[Boris3]

Check all your fuses?

[Brian.]

Was the first thing I did. They're all fine..

[B C]

I checked through the wiring diagrams for those components and they all share a common ground "G200" which is under the dash by the pedals.

Reference: http://wedophones.com/Manuals/BMW/1986%20BMW%20528e%20-%20535i%20Electrical%20Troubleshooting%20Manual.pdf

Inspect/clean-up that ground point and use it to check for continuity with the ground wires on the harness for the components that aren't working. If they check out good then you know the wiring harness is good. Also check the resistance of the ground point with the negative terminal on the battery. If those items checkout good then there is a bad common +12V somewhere in the circuit.

[Brian.]

^ thank you. I'll give that a try, although I didn't mess with that side, never know!

[Brian.]

It checks out good. Put My hood ground back on. Still nothing.

[Brian.]

So, I checked everything, fuses, grounds, plugged all the electrical that I removed back in, still nothing! At this point I was like, fuck it. I guess I won't have those luxuries of what most of my previous vehicles didn't have anyways. I moved on. Well like 5 day's ago, I blew a fuse. (I check ALL fuses religiously dunno why). Come to find out, the fuse for all the things that didn't work, was lose, the prongs got lose, so I just rebent them back together, and VIOLA. ERRYTHING WORKS.

[B C]

If only you had listened to Boris3

tsk tsk

[Brian.]

I did it wasn't blown just lose

[Boris3]

I've seen loose main relays and fuses cause all sorts of problems. Checking them to see if they are loose or blown is always a good starting point.

Glad it all worked out.

[need4speed1299]

Moved to general technical for future reference.