Hi,
Wow, this is all over the place. The different things mentioned are on different circuits, but they do power through the headlamp switch and multiplex control unit.
When you have the parking light turned on and the rear doesn't light, do the front parking lights work as well as the license plate lights? I ask because there is a jumper that can cause an issue. See pic 1 below. However, I don't feel that would affect the vanity or dash lights.
Do me a favor. In addition to checking fuses under the dash, I need you to check if there is power to and from them.
Here is a link that explains how to test:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Also, the two things I'm seeing as a possibility is the multiplex control unit or the lamp switch, but I need to know if the front parking lights work.
Let me know.
Take care,
Joe
I attached pics from the three different circuits below, so you have a reference. The last pic shows the location of the multiplex control unit.
Images (Click to make bigger)
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Monday, September 12th, 2022 AT 9:08 PM