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10-31-2025, 04:42 PM
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#1 |
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Registered User
Join Date: Jul 2004
Location: Broken Arrow, Ok
Posts: 16
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Running lights, tail lights, break lights and turn signals not working
Hello everyone,
My tail lights, break lights and turn signals aren’t working. My headlights and front turn signals are working. I’m assuming I have a short somewhere. Just curious if anyone has any ideas where I should start. I have never chased down a short before. I looked at the fix box and the fuses appear to be ok. Thanks for any suggestions. Chuck 1971 shorty 4x4 |
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10-31-2025, 06:05 PM
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#2 | |
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Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 2,108
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Re: Running lights, tail lights, break lights and turn signals not working
Quote:
Just "looking" at fuses is a only visual inspection.. You'll need to conduct a continuity check using a meter of some sort, a test light will work in a pinch. Make sure the fuses actually have continuity (not blown) and make good connections with the "clips" in the fuse box. Tail lights and brake (not "break") lights work independently of the ignition switch, while turn signals require the ignition switch to be on, so you MAY be looking at multiple problems. And there's always the possibility of a bunch of burned out and/or badly grounded bulbs. Don't try to get everything working with a single "stroke of the pen".. Pick a circuit, get it working, and then move on to the next one. |
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11-01-2025, 08:55 AM
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#3 |
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Active Member
 
Join Date: Feb 2015
Location: chicagoland
Posts: 108
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Re: Running lights, tail lights, break lights and turn signals not working
Check connections to your steering column
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11-01-2025, 09:49 AM
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#4 |
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State of Confusion!
 
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 48,486
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Re: Running lights, tail lights, break lights and turn signals not working
Like mentioned get a wire diagram, and a good prob test light. Since it is all the rear lights, could be the rear wire loom became disconnected at the firewall or underneath. The firewall connection is up and to the right of the gas pedal, accessible from both firewall and under dash side.
__________________
Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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11-01-2025, 10:56 AM
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#5 |
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Senior Member
Join Date: Nov 2018
Location: Waterford California
Posts: 2,893
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Re: Running lights, tail lights, break lights and turn signals not working
90% of all electrical problems are grounding issues.
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11-01-2025, 03:05 PM
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#6 |
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Registered User
Join Date: Jul 2004
Location: Broken Arrow, Ok
Posts: 16
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Re: Running lights, tail lights, break lights and turn signals not working
Thanks for all of the great advice fellas.
Chuck |
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11-02-2025, 12:52 AM
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#7 |
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Active Member
Join Date: Oct 2023
Location: Fountain Inn SC
Posts: 128
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Re: Running lights, tail lights, break lights and turn signals not working
Posted about this same problem about a month ago after swapping from non tilt to tilt column . Check to see if your emergency flasher switch on the column is sticking/partially stuck in or out . Mine was stuck and the front turn/ park lights would work in conjunction with rear brake lights when brake pedal was pressed . Good advice from lots of folks .
Good luck on all your projects.
__________________
70 C 20 Longhorn PS , PDB, Dealer installed AC, 700 R4, Dual battery, original TAX 350 motor, 3rd owner truck. 71 C 50 292 4sp 2sp vacuum operated rear end 8 x 12 flat bed. 22.5 Goodyear radial$ n Wheels Now rim$ 86 Grand Wagoneer " Saggy Waggy " Jeep = Just Empty Every Pocket $$$ currently in another shop |
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