Join Date: Nov 2009
Location: Lake Mathews, CA
67 RS headlight doors BIG electrical trouble
Gentlemen: I know this topic has been written about till its blue in the face, however I still do not seem to be finding the answer.
Problem: Doors will not close...
I am a semi-literate schematic reader, I have rewired the entire system ( exception being the wires in the loom from left to right in the core support ). all of the switches have been replaced, replaced the relays, checked the diode. etc.. I followed the troubleshooting process onliine, checking for voltage downstream from relay 1 etc.. what I really need is someone who understands the flow of electricity in this thing who can walk me through an isolation procedure. I am used to isolating out bad parts, but without really knowing how the current flows and where to access the isolation points, I am at a total loss. And whoever decided to make the schematic (color coded by wire without contact data had no desire to help anyone but the true electrical engineer, arrgghh )
1) I cannot understand why the 2 connector port on relay 2 has voltage on BOTH contacts?? is that not what activates the relay? I was thinking one should have voltage to activate the realy and the other should be ground, voltage drops, the relay opens?? The TS guide says replace relay 2 in that instance, did that, got nothing??
What I want to do is put voltage to the motor and see if it in fact operates to close the doors, then work back thru the relays to find where the circuit is malfunctioning.
Any takers, i am not one to go to a shop and pay $90/hr for someone else to review my entire re-wire ( will take them 2 hrs minimum to follow it thru and confirm it is correct and I have better things to do with $200 bucks )
the system had numerous faults, shorts, crosses, grounds, wired to headlights, stray wires to nowhere... the monkey they had working on this before obviously had electrical experience but not enough to pull the wiring diagram out, ( they did work when I bought the car 3 months ago ).
I would also like to understand how the relays get current to the motor when the light switch is pushed in, Does the brown wire from the diode go hot when the switch is pushed in?
any takers on this one, I am having fun fixing this and a little frustrated, but I am not giving up...