!994 Chevy 3500hd HELP?

Asked by Harold Jun 21, 2021 at 02:45 PM about the Chevrolet Silverado 3500HD

Question type: General

1994 Chevy 3500hd I had 1 signal light and no brake lights. I had someone
install a brake controller about 15 years ago so I figured that was the
problem. I couldn't get any current other than the right signal of the three way
plug and the trailer brake. So I just did away with the ten feet of rolled up
crap that was there. I then had current through the 3 way plug to the trailer
and from the main wires from the front. I then wired everything to the
complete new brake housings while checking lights to make sure they were
right. Ok I have left and right brake lights, backup lights and park lights but
no brake lights. I replaced the signal wiring harness around the steering (that
headlight dimmer switch is a Bitc) still no brake lights so I change the
brakelight switch STILL no brake lights. The 4 way flashers didn't work with
the old signal collar and now lights up but still don't flash I went to look at the
back lights and it looks like the brakes are on. I turned them off and checked
to see if the brake wire had current but didn't get any even when I pushed
the brake pedal down. I also checked to see if any other wires had current
and 2 of them did they are supposed to have. Just for the heck of it I turned
the 4 way flasher button back on and checked the wiring harness wires
again for current and white green purple brown all had current. What is going
on here PLEASE?

1 Answer

154,505

Check the turn signal switch. The brake lights are wired through the turn signal switch. Hope that helps! Jim

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