Only 1 idiot light works?
 

Ok so I finally got my idiot light unit to work, clock works and only 1 warning light comes on.

Only the charge light comes on when the key is put to on.

I grounded the Y/L wire and that lit up my shift light and my warning lights.

Is this bad solder joints in the cpu/idiot light unit? My horn also doesnt work, the light in the drivers door rarely comes on when I open the door, key illum doesnt work, and my shift up light rarely works.

CPU solder joints would be my guess. If the lights can come on when you ground them, the warning light board should be fine. The horn and other functions are controlled by the CPU.

I went over a lot of the joints in the cpu but not all of them, probably will tomorrow.

The security light now works, as does my horn.

Ok I soldered every joint on the 3 cpu boards. It didnt help in anyway.

Washer light now comes on and stays on along with the security light.

When I disasembled the idiot lights there was 2 resistors missing on the board.

What you guys think?

Ok when I ground my Y/L wire on the plug of the cpu, the only warning light that comes on is my shift up light and my charge light.

I went over all 3 cpu boards removing the solder and applying new solder so I know all the joints are perfect.

Could something on the cpu board being burnt out?

Its wierd that if I start the car I have atleast a few lights that work but if I just ground the Y/L wire only one lights up? The ground is suppose to complete the circuit for the lights allowing them all to light up, but only one does unless if I start the car.

Anyone have any ideas?

The wiring in the interior is in great condition as well... I am going to go get the 2 resistors I need and repair the idiot lights, but I have a feeling that my problems lies in a faulty part in the cpu.