Head lights, brake lights, interior dome light and dash lights do not work

Hi,

First, great old car. Wish I had one. LOL

Okay, because of the model year, I have basically no wiring schematics to review. So, we need to work though this one step at a time. Hope that's okay.

First, did all the lights fail at the same time? Also, you mentioned that you checked fuses. In addition to checking the fuses, did you check if there was power to the fuses? Last, did you confirm if there is power to the switch. That is the one thing that ties everything you mentioned together.

Here is a link explaining the fuse checking process. Often times, people see a good fuse and assume everything is okay. However, if there is no power to the fuse, it doesn't matter if it is good or not.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know. And please bear with me simply because I have no schematics to work through.

Take care,
Joe

Hi,

If there is no power at the fuse, I will need you to confirm that the pins which the fuse connect to are not corroded or pushed down into the fuse box and preventing them to make contact. If that isn't an issue, I will need you to disconnect the battery and remove and inspect the rear of the box to make sure there is no damage. However, before you remove it, I want you to check something else, and that is ground.

Simply remove one of the lights and see if there is continuity to ground. Not always, but in many cases, the ground wire will be black or black with a white tracer on it. Basically, we will be confirming that ground to the lights hasn't been lost.

The good thing is because of the model year, it shouldn't be too complex. If the box is bad, it will need replaced.

If you have questions or need help about what I suggested, let me know.

Take good care of yourself.

Joe

You are very welcome. Let me know what you find. Another tech has uploaded schematics for this vehicle. They are very difficult to follow, but if the things above don't help, I'll start reading through them.

Take care,
Joe

Wow, that looks rough. To answer your question, anything that could prevent a clean connection can cause a problem. It could have something to do with it. Check everything up and see if it makes a difference.

Let me know.

Joe