Headlights turn on and off ramdomly!!!

[juiced_94gt]

Well ever since i fired up my car for the second time it's been nothing but weird issues, first my driver turn signal works properly only when it wants to, it makes a clunking sound from the bottom of the car when it's cold, and now the other day I was driving on the freeway and the headlights were turning on and off at random but the lights on the dash were fine...what would cause this?? grounds seem to be ok.

 

[juiced_94gt]

Oh and the passenger power door lock wont work anymore either

 

[HISSIN50]

Your headlight switch might be bad or the light switch connector is starting to melt. It only takes a minute to inspect each, and they're relatively cheap, so that's where I'd start.

 

[juiced_94gt]

How do you check??

 

[mhespenh]

How do you check??

Remove the dash panel that houses the gauges (to do this you have to remove the light switch knob first, which is a pain the first time you try it) then remove the two bolts holding the light switch in. On the back of the switch you'll see the connector, if its melting you'll easily be able to tell. If it isn't I'd bust out the voltmeter/multimeter and check all the wires for correct values.

Good luck, I freaking HATE tracking down wiring problems.

 

[juiced_94gt]

what are the correct values for the wires I should be checking?

 

[HISSIN50]

Red/yellow is the headlight switch output to the MF switch.

A bad connection at the MF switch is also possible.

Anyhow, here's a schematic