Tach quit working.

[LowR3V'in]

Is there a relay or fuse that goes to the tech that maybe out?
I was doing some rewireing before this happend. Used power and ground
from the door adjar speaker and taped into battery power from the spliter under the hood.

1990 325i
thanks.

[jht3]

yes, it is fused but i forget which one. just look in the fuse box for a blown fuse. always remove the ground cable from the battery before doing ANYTHING even remotely electrical related

[DrMcDave]

i think its 10, or 21. Its in the bentley if you have one. If its not the fuse pull the cluster and look at it. I fried the board on mine when replacing my dash. I plugged the AC button into the hazard switch by accident and all sorts of bad things happened.