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K. Wiggins
K. Wiggins, ASE Certified Technician
Category: Chevy
Satisfied Customers: 2873
Experience:  ASE Certified Technician, Associates Degree in Automotive Technology, 15+ years in the trade
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I have a 1985 chevy C20 and none of the rear lights work.

Customer Question

I have a 1985 chevy C20 and none of the rear lights work. checked fuses and they are all ok under the dash. Are there other fuses or where is the connection for the box lights?
JA: Have you checked the manual yet? Most vehicles have two fuse panels.
Customer: I will check again but I did not find one.
JA: What is the model of your '85 Chevy?
Customer: Scottsdale.
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: yes, I checked all the fuses in the fuse panel.
JA: Anything else you think the mechanic should know?
Customer: no
Submitted: 11 months ago.
Category: Chevy
Expert:  K. Wiggins replied 11 months ago.

Hello, just to confirm the whole of the rear lighting does not function, park lamps, turn signals and brake lights?

Customer: replied 11 months ago.
I have one marker light on the passenger side that is working. I am checking the tail light harness plug and I am going check for power there.
Customer: replied 11 months ago.
I did not know if there is a second fuse box. I have the manual and it only show one under the dash on drivers side.
Expert:  K. Wiggins replied 11 months ago.

That's correct, just one under the dash. The harness plug is defintely the place to start. I'll post he wiring info below for you. If all the power wires check out check the grounds, they are a common issue on these trucks

Expert:  K. Wiggins replied 11 months ago.

Hello, I was just wanting to follow up to see if you needed any further assistance.