Lost all dash lights after pulling dash
Sorry this ones long.
On the car I'm building I lost all dash lights in the cluster, heater control etc and Im not sure how I did that. headlights and tail lights still work.
I know my dimmer and headlight switches are good, tried them in my other car and they work.
I'm thinking it's a bad ground but let's see if anyone else has any ideas.
The car is a 90.
I recently had the dash out to do the heater core, removed both the airbag module and airbag power supply, (It's mostly a drag car) and
removed the factory amp harness.
Hooked the batt back up and was going to test for dash light power for aftermarket gauge lights, but I didn't have any dash lights.
I tested for a while, pulled the entire dash back out again, the plastic portion, the steel dash framework is still bolted in, and with a lighted continuity test light I have been probing the headlight and Dimmer switches while they are connected. On my 93, on the dimmer switch the black w/blue stripe and green w/yellow stripe have solid continuity to ground with the headlight switch off, key off and batt unhooked. The 90 that I'm having issues with, both of those 2 wires have a very weak connection to ground with key off and batt un hooked.
Also those wires do not power up when the headlight switch is turned on. On the 93 they do power up.
On the headlight switch the large red w\ yellow stripe is not getting power when the headlight switch is turned on.
The relay is also working.
I tried hooking everything I removed back up. Nothing seemed to change until I hooked 2 plugs back up under the column. 1 for the ignition dinger and 1 for either the horn or airbag. (3 wire rectangular plug, its def not for cruise).
After that I had power again. I plugged the cluster back in to make sure and then it stopped working again. I went through all the wiring jiggling and shaking thinking I had knocked something loose or had a bad connection but I never could get it to come back.
Ive been messing with it for hours now and my brain is to tired to diag clearly anymore today.