Blinker shorts out
Senior User
Joined: Jun 1999
Posts: 100
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Blinker shorts out
I have a problem with the blinkers (turn signals) in my pickup. They worked fine when I bought the pickup and worked fine for about a month. Then I was coming home one night and they shorted out. I didnt think much of it so I put another fuse in and they worked for about 5 seconds and the fuse blew again. Can anyone tell me the way to find a short in the blinkers system so I can get blinkers and stop the frustration?
Thanks
Fordman
Thanks
Fordman
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Blinker shorts out
Fordman, I can, you have a wire with the insulation not covering a spot and it is touching the frame. Where is it, I haven't a clue. I would park the truck somewhere that you gan get under it. Start at the back where the wires come down from the tail lights and inspect the wire. Do both sides and after the two come together, follow all the way to the fire wall. I'll bet you find your problem by then. There is just a much higher chance of it being near the rear, and somewhere that the wire bends around the chassis. Look for places where someone may have repaired the line and there is loose tape.
John
John
Senior User
Joined: Jun 1999
Posts: 144
Likes: 0
Blinker shorts out
If I were to troubleshoot this problem I would start by pulling all bulbs and checking the sockets for corrosion. Clean the sockets, leave the bulbs out and see if any fuse blows. I've seen bulbs cause some strange problems. Don't overlook the posibility of the flasher unit being bad. Determin if the problem is with the turn signals and flashers also? Good luck
ray
ray
Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
One method to locating shorts is to unplug wiring harness starting with say the taillights, harness at the rear of the truck. Try blinkers, if the new fuse blows, then the short is closer to the cab, unplug connector at the cab. If it still shorts the problem is in the cab. This easy enough and requires no multimeters or special tools. Once you isolate the section of harness the short is in, find the short and repair it.
You can do the same thing with a meter by checking continuity between problem circuits and the frame or other ground, but it requires the use of meter (obviously).
You can do the same thing with a meter by checking continuity between problem circuits and the frame or other ground, but it requires the use of meter (obviously).
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