Headlight switch issues

[2_60b4u]

The other night I flipped on my headlights and noticed smoke coming from the light switch, figured the switch was faulty so I replaced it but the new one does the same thing. Any ideas what to chase?

 

[Don W.]

Re: Headlight switch issues

Bum sw? Was the replacement a known good one?

 

[RealFastV6]

Can you tell which circuit is overloaded? There's more than one a part of that switch.

 

[2_60b4u]

Re: Headlight switch issues

Yes, replaced the switch with a known working unit (used).

It will only smoke when both the headlights and parking lights are on. I can turn just the parking lights on without any smoke issues.

 

[Don W.]

Re: Headlight switch issues

I don't know the exact wiring but if it's not blowing a fuse then I'd examine the connector. Maybe remove the wires from the connector and install them individually? Can't tell if that would work without looking. I'll look at my manual later today and see if I can see anything.

 

[starquest maniac]

Re: Headlight switch issues

You dont happen to have any gauges using same circuit do you? Gauge pod, amplifier acc,etc? Take a test light and check for ground and 12V on the harness going into switch.

 

[RealFastV6]

Re: Headlight switch issues

Yes, replaced the switch with a known working unit (used).

It will only smoke when both the headlights and parking lights are on. I can turn just the parking lights on without any smoke issues.

Now I'd check the same thing with the highbeams on.

 

[2_60b4u]

Re: Headlight switch issues

Thanks for the tips guys. I had a alarm system installed over 2 years ago and one wire was soldered to the wire for the parking lights. I've never had any issues with the alarm, and that is the only aftermarket part installed.