was working on 4 plug on trailer and lost brake lights on truck.. good fuse, flasher works. park lights put new brake switch on truck. this is a 98 chevy 4x4 3/4 ton
2006-09-28 01:35:41 · 8 answers · asked by priscilla r 1 in Cars & Transportation ➔ Maintenance & Repairs
it is the truck brake lights that wont work now. not trailer. and trailer is unhooked. everything else on truck works. just not brake lights. fuse, switch, bulbs all good priscillariddle@yahoo.com
2006-09-28 01:52:44 · update #1
sorry no one had right answer, good ones though. We found a giant fuse under the hood and it corrected it all. thanks for suggestions
2006-09-30 04:38:13 · update #2
You don't identify the Make or Model of pick-up, BUT------
MOST pick-ups have a wiring harness plug at the rear near the last cross-member, or just in front of the rear bumper. Most of those built after the late '80s actually have a plug-in adapter available for the trailer light arrangement. (at least the American models do)
Since you were connecting / disconnecting the trailer plug, perhaps the connector plug for the lights at the rear of your pick-up lost contact. It is simple to check out.
Also, on many pick-ups the rear lights are all connected with a single wire to ground. If this wire or connection fails, some of the lights will work, but only because they get the ground circuit completed by jumping to another ground through the filaments of the bulbs, and back-feeding to other circuits to ground.
This is all I can help with for now.
BTW---There is NO brake light relay for any vehicle I know of. Don't spend a LOT of time looking for it.
Good Luck
2006-09-28 03:07:52 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
Did you cut your wires to find wiring for the trailer lights? If so make sure that connections is good. Park & Break lights use different filaments. Check your bulbs. But it sounds as if you broke your wiring circuit when messing with the trailer. Could be grounding out on the trailer harness as well. Good luck.
2006-09-28 01:43:09 · answer #2 · answered by Cars 2 · 0⤊ 0⤋
I had the same problem on two ford trucks I`ve owned in the past. It turned out to be a faulty or disconnected ground wire which prevented the lights from working.
Jim
The same issue also happened using a trailer, the ground plug was the culprit.
2006-09-28 01:41:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Try rewiring your trailer plug to match the towing vehicle. Use a prod tester and have an assistant operate each circuit. Am I to understand that with the trailer on nothing works correctly ?
2006-09-28 01:41:15 · answer #4 · answered by Foz 1 · 0⤊ 0⤋
I think you should undo the wiring at the trailer hitch one by one to see which one corrects the problem. Remember brown/yellow are for left brake light.
2006-09-28 01:49:08 · answer #5 · answered by nbr660 6 · 0⤊ 0⤋
If non of these other suggestions fix it, check the RELAY switch. You will know if the relay works if you can here it "click" when the brakes are applied, thus signalling that it is a good relay.
2006-09-28 01:44:26 · answer #6 · answered by Song Seeker 2 · 0⤊ 0⤋
it style of feels obvious that there is a place someplace on your circuitry it is bare cord open so as that as quickly as wires are shaken adequate to the touch the automobile physique / different wires a quick happens. this could be confusing to locate. in case you possibly would desire to insert man made fuses in the two facets of the automobile of the affected lights furniture -- the fuse on the section the place the concern is would desire to blow including the main efficient fuse. stable luck -- possibly somebody else has a stronger innovations. in case you have a voltmeter, amp, ohm -- meter and you understand ways, you may desire to objective to repair it your self.
2016-10-18 03:12:09 · answer #7 · answered by carrera 4 · 0⤊ 0⤋
Do you have the wires the correct way on switch.
2006-09-28 01:40:03 · answer #8 · answered by Paul Sabre 4 · 0⤊ 0⤋