Turn signal/Brake light flash
#1
Turn signal/Brake light flash
I recently pulled the bed on my 93 pickup to change the shock mounts. After bolting the bed down, the turn signal lights both flash when i turn the signals either direction on. Even the brake lights flash untill i press the brakes, then they all stay on. When I press the brakes, both blinker indicators illuminate. Checked the bulbs and sockets. checked grounds in the back. I can unplug both tail lights and still flash the same. I cant find a good diagram for the rear lights. Ive looked at both the FSM and this website for hours. Any help is appreciated.
Last edited by RecklessWTx; 05-26-2014 at 12:17 PM.
#4
bringing this back!!
i bouhgt a truck and it has this problem. My turn signals are fine, but when i press the brake everything flashes. If i am not using the turn signals and hit the brakes, the brake lights flash like crazy.
The wires look fine but i am going to look more careful this time. Mine doesn't have the trailer harness either, which seems to be the problem most of the time.
i bouhgt a truck and it has this problem. My turn signals are fine, but when i press the brake everything flashes. If i am not using the turn signals and hit the brakes, the brake lights flash like crazy.
The wires look fine but i am going to look more careful this time. Mine doesn't have the trailer harness either, which seems to be the problem most of the time.
#6
flash like crazy
- right turn signal on and it blinks fine. hit my brake and then both of my turn signals flash and the brake lights in a random pattern.
(can't recall if my reverse lights light up too)
- not using turn signals, hit brakes and the brake lights flash erraticly.
i bought a can of that "electrical connector" cleaner and i sanded some rust off of a few contacts. most were good.That didn't seem to make a difference because the issue was still there.
The tailights are rusty on the back side, and the lens & seals are damaged any ways so i just bought new tail lights. I bought a pair of tail lights from some one over seas, on ebay, so i have to wait 3 to 4 weeks before they arrive.
i will have a 3.8 powered truck hopefully before the taillights even arrive.
#7
I disconnected the pigtail in the cab, and tested all the wires. From behind the dash leading to the pigtail. Everything seems good except a yellow/blue wire. It is always hot. I was using a test light and when the bulb was always lightly lit. And when I touched the light to it, the low fuel light would go on . . . Wired.
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#8
Maybe that yellow/blue wire is supposed to stay hot.
Got schematic?
Got multi-meter?
A problem well-stated is a problem almost solved. If you told us what truck model year you have, someone could share a schematic with you so you can more effectively troubleshoot.
Got schematic?
Got multi-meter?
A problem well-stated is a problem almost solved. If you told us what truck model year you have, someone could share a schematic with you so you can more effectively troubleshoot.
#9
This happened to me. One of my bulbs melted and the brake filiment melted and touched running so when I hit my brakes my running lights and front turn signals lit up. Check the bulb filiments
#11
It probably should always be hot but it seems weird how it lights up the low fuel light every time I touch it.
I do have a Haynes manual and the schematic seems hard to read. It only shows a blue/yellow wire briefly at one spot. I do have a multimeter but haven't been working on the truck. I have been traveling for work a lot so when I'm home I cleaning and cooking . . . Catching up.
I bought new tail lights off of eBay they shipped from Thailand. Not directly the same plugs but clean.
I do have a Haynes manual and the schematic seems hard to read. It only shows a blue/yellow wire briefly at one spot. I do have a multimeter but haven't been working on the truck. I have been traveling for work a lot so when I'm home I cleaning and cooking . . . Catching up.
I bought new tail lights off of eBay they shipped from Thailand. Not directly the same plugs but clean.
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