Okay, I'm driving along at night and all my dash lights go out....I recycle the headlight switch, ie, turn it off and back on, and they return on....can this be the Illumination Control Unit? Where to start troubleshooting this?ack

 

BTW, 99 outback wagon.

It could be the control unit but check the wiring to the dimmer control also. After looking at my info it appears that the dash lights are not grounded on one side as most lights are. A wht/yel and yel/blu wire run to the lights from the control unit.

 

Another point to check is the relay for the tail and dash illumination. This may be the real culprit and I would suspect that first. You may be able to prove by tapping lightly on the relay while the trouble is occuring. If the dash light work then, you know what to do.