I had an issue with the low beams not working. I could tap the high/low beam relay and the low beams would come on. I ordered a new relay (correct thing to do) and then decided to solder the wiring leads (not the most correct thing to do). I have lost track of what wires go where when pushing the leads back into the harness. The headlamp logic relay is a dac 6902 and the wires are blue, black (ground), brown (power), blue/white (high beam), blue/red (low beam), and blue/black. I have looked at wiring schematics and can't make much sense of them. Its a six pin harness located on the drivers side fender under the hood. If anyone can go and look at the wiring in their car and tell me which wires go where or even better, post a picture of the wires entering the harness I would greatly appreciate it.

Mike Hagen
Minneapolis

 

Well looking at the wiring diagram, I see the following.

Blue/Black connects to pin 1 (goes to lighting switch)
Blue connects to pin 2 (goes to headlamp relay)
Black connects to pin 3 (ground)
Brown connects to pin 4 (12v)
Blue/white connects to pin 5 (high beam)
Blue/red connects to pin 6 (low beam)

Is that what you were looking for?

 

That works! After resoldering for a second time with a better iron and plugging those leads into the the correct sockets I now have working headlamps! On to the next project...

Thank you!