Brake lights do not work on a 1993 v-6 PU Can I obtain a schematic wiring diagram from you?

Pontiac Trans Sport Wiring Diagram and Electrical System ...

www.wiringdiagrams21.com > Automotive > Pontiac

Aug 28, 2010 - The following link provides detail information regarding the 1993 Pontiac Trans Sport Wiring Diagram and Electrical System Schematic. Herein ...

#? Pontiac Trans Sport Wiring Diagram and Electrical ...

circuitswiring.com/pontiac-trans-sport-wiring-diagram-and-electrical-syst...

The following link provides detail information regarding the 1993 Pontiac Trans Sport Wiring Diagram and Electrical System Schematic. Pontiac Trans Sport ...

Pontiac Trans Sport Repair Manual, Service Manual Online ...

? 0:43
https://www.youtube.com/watch?v=otZHu1F5A-M
Dec 15, 2014 - Uploaded by kazi sharif
Pontiac Trans Sport Repair Manual / Service Manual Online - 1990, 1991, 1992, 1993, 1994, 1995, 1996 ...

Free Pontiac Wiring Diagram‎

when.com/Free+Pontiac+Wiring+Diagram‎
Explore Free Pontiac Wiring Diagram
Discover More on When.com!

If all the lights work properly with the trailer wiring not connected then the truck itself is fine. If attaching the trailer wiring causes the lights to permanently stop working on the truck then you are blowing a fuse and it will need to be replaced. Your owners manual will show you where the fuse panel is. You should be able to check the wiring plug at the back of the truck to be sure it is working properly with a test light and a helper. If the power for signals/brakes etc are not all working at the plug, then trace back and fix these. If all is good at the truck's plug, then the trailer wiring must be faulty. Again, go through it and fix anything that is broken or corroded. Of course it goes without saying, make sure all the bulbs are good.

can you give me the password

you need to inspect wire harness @ rear and along frame rail , corrosion , damaged wire, bad connection, check for continuity, power, ground wires are extremely important . brake light switch could be at fault !!!!!!!!, power to both brakes & turnsignals must be determined , both of these circuits cross each other, see wire diagram

You will need the wiring diagrams to troubleshoot this, we do not have them here at fixya, sorry. They can be bought used here if you would like

There is another fuse box under the hood. Driver side. Check it out.

There never has been what you want

Only a rough or partial schematic of brake
tubing, is ever in a factory service manual

Only if you intend to work on your own vehicles,
would you get involved in replacing rusted brake
tubing & then you just duplicate what is there, that
needs replacing.

same bulb but 2 seperate elements. wiring diagram u should be able to obtain from your local auto parts store like autozone(preferred)

Try a continuity test, not sure where to find the electrical scheme but if you obtain it, use a tester or borrow one to test the continuity of the wires of both taillights, could be simple as a cut wire.