Side Mirror Marker Lights not working correctly

[chuckles_1205]

Hey guys, first time posting a question here.

I have a 03 ' excursion 6.0.

My side mirror lights are acting strange, the turn lights (blinking) on the mirrrors work but the running (Park) lights don't work.

So I am thinking it is a wire issue or something like that, so does anybody have an suggestions what I should look at?

[chuckles_1205]

So I have done more digging,

Is it true that the wires parking lights are directly connect to the highlight switch? I am wondering if a faulty headlight switch could cause this problem.

[cape2011cat]

What did you find as the problem my 2003 ex has that same problem and it drives me nuts!!

[ve7fet]

Originally Posted by chuckles_1205

Hey guys, first time posting a question here.

I have a 03 ' excursion 6.0.

My side mirror lights are acting strange, the turn lights (blinking) on the mirrrors work but the running (Park) lights don't work.

So I am thinking it is a wire issue or something like that, so does anybody have an suggestions what I should look at?

I'd pull the door skin off and pull the connector apart that goes to the mirror.

The brown wire is the park light wire. See if it has power when the lights are on. That should help you determine if it is the light module in the mirror, or a wiring issue.

The wiring for the park lights in the mirrors comes from the CJB, and is spliced to the license plate lamps and rear park lights... so if that splice is bad (very unlikely), you should have issues with those lights as well.

You could also disassemble the mirror and check for power in there too.


Lee