Look ib your owners manual......................page 321
Replace the fuse.
where is the 1990 c4 fuse for the hore
how can I change the fuse for the drivers seat on a 2004 Cadillac escalade
check to see if the ligt intensity is turned down on the headlight switch. Also check brake light fuse. Good luck
The Owner's Manual
under the steering column by the gas peddle.
I believe the O2 sensor heater is a fused circuit, you will need a wiring diagram to tell which one it is.
If the speedometer stopped working on a 1990 Cadillac Seville, it could be the fuse or an electrical problem. First check the fuse and if the fuse is good, check with a mechanic.
A fuse box diagram is found under the fuse box. There is a sticker imprinted underneath the cover of the box a 1990 Toyota Corolla.
You can get a 1990 Dodge Dakota fuse diagram in the owner's manual. You can also find it at select auto part stores.