another s13 HUD/cluster lights problem!!!!!

[Linux2501]

Alright so tonight I replace my 93 s13 coupe speedo sensor with a new one, because my old one from my single cam didn't work so I replaced it with a dual can for my rb20 swap couldn't tell because my cluster lights didn't come on,

This is a problem I've had for some time now, with the cluster lights coming off and on, I've had intermentint problems due to heat or just randomly cutting on while driving or when I start the car its just a hit or miss kinda thing.

Now I have an aftermarket radio and the wires are all non grounded and I've checked the TCU and linked the pins 1 and 2 on the dimmer switch still nothing checked fuses everything

Before you ask do my tail lights work yes both braking and when the headlights are on.

There are no burnt traces on the TCU gotten countless dimmer switches and still no luck. There was a time I could bang on the dash and they would come on its just a rare thing.


If you could give me a part number to the TCU or how to check a dimmer switch or the TCU please let me know

I have this same problem with my other coupe and another thing the clock goes black when you turn the lights on.

I'm pulling my hair out guys.

[Linux2501]

Bump? Please Help!