[pcmos]

Can you describe the problem you were having before you rebuilt the multi-function switch? I'm helping my father diagnose his 2003. He says that while he is driving with the headlights on, they will simply shut off without warning. I have the factory shop manuals for the car and the factory wiring diagrams.

After tracing the circuits I can't quite see how a poor contact in the MFS could cause the headlights to shut off. I can certainly see how a poor contact in the fuse box or in the headlight switch (dash mounted) could cause the headlights to malfunction.

In the case of my father's car, he reports that he can activate the hi-beams by pulling back on the multifunction lever to activate "flash to pass." When the headlights fail he has to hold the MFS lever back continuously.

My father's car was recently involved in a rear-end collision and the problem only started to crop up after he got the car back from the body shop. I suspect perhaps the impact jarred something in the LCM which is causing the failure. It;s much cheaper/easier to check the multifunction switch first I guess.