Got Headlights, but taillights, dash, overhead lights

[1986_MarkVII]

1990 Cadillac sedan
305 motor
49,000 miles


Symptom:



1. Working:

Headlights
Brake Lights
Reverse Lights
Turn signals
Door lights.




2. Not Working:


Tail lights
Dash lights
Map light
Glove Box Lights




Solutions Attempted:

I checked all the fuses and they appear okay.





Any recommendations of what to check, next?

 

[MAC1]

Check all tail lights for corrosion in light sockets and/or melting due to overheating. If the bulbs are difficult to remove it could indicate overheating.

 

[jonnieQ]

sounds like a headlite switch to me they all run through it,

 

[jonnieQ]

or a primary feed the feeds the battery side of them things.ck if mite have outside fuse box.