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F250 no brake lights or running lights blinkers weak all fuses good

Found 1 bulb out changed it and also changed flash relay inside dash.

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  • 52 Answers

Its probably the parking light switch on the dash, press the break pedal and see if your break lights work, there usually ran off of a switch on your pedal. if so i would say its the switch on the dash shorted out

Posted on Jan 03, 2013

  • Terry t Jan 03, 2013

    The brakes do not come on when you press the pedal. I have all my front lights just no rear

  • madmaxx Jan 03, 2013

    look on your break pedal arm and you should see a little plastic box with some wires connected to it. try moving it while someone stands behind it and see if its that switch, it wont move very much

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SOURCE: the brake lights on my 1987 toyota camry don't

I have the same problem -

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vetteman3002
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I would start by checking the headlight switch on the dash. You can brighten and dim the lights on the dash with a switch. Usually when just the dash lights go out then it is this switch.

Posted on Sep 18, 2010

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1 Answer

I have no blinkers or brake lights on my 2010 kenworth 900 deisal I have already replaced the blinker switch but nothing fuses under the dash are good also


Dangerous situation. Do you have any tail lights? running lights?
I would guess you have a power connection somewhere before it gets to either of the switches (including brake), a main relay, or separate relays for both brake and blinkers. Possibly a fuse that looks good is not. Volt-ohm meter is good at checking those things.

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Passenger blinker stays on when you hit the brake. Foot off the brake Blinker is fine. This problem happens running or not. No bad bulbs, but changed all bulbs to new ones! Any Idea's


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My brake lights and rear blinkers are not working. I have replaced the bulbs in both brake lights. What next?


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Center high-mounted stoplight is not working? Where is the relay?


If the two rear brake light are working on each side, then fuse and relay are good, check the bulb.

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My signal light wont blink but it comes on, how do i change it or where to start to fix the problem


My first thought: burned out bulb.
With the car in "run" position(doesnt need to be running) and parked, switch on the blinker and get out and look to see which light is on, and which is not.
If somehow both blinker lights come on, then your issue is with a burned out blinker relay which is typically found up, under, the dash. These things are about 1-1/4 inches in diameter and about a 1-1/4 inches tall and will usually be found in or near the fuse panels.


If it's a bulb thats fried....
front end - check under the hood to see if blinker bulbs are accessible from there. If not from inside, you'll hafta remove the light covers/housings from the outside, usually requiring a philips or torx screwdriver of some sort.
back end - these are likely accessible from the trunk, and hidden behind the carpeting, or something, that covers the rear light areas. If not directly accessible, then you'll hafta determine how to remove the bulb covers/housing to get at the dead bulb.

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Replace your "flasher relay, also know as a "blinker relay".Your local auto part store should carry them.

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Where is the flasher relay unit


1ST double check that all the bulbs for the pass. side turn signals are working. if even one is out it can make the blinker not "blink". so compare the pass. side lights to the driv. side to make sure u did not miss something. NEXT,if thats not the problem, then u can locate the flasher by 1ST looking in the fuse box(probably inside the glove box or under the drivers side dash) theres a good chance it might not be there(years ago every car had the flasher in the fuse box) SO TURN ON THE DRIVERS SIDE BLINKER (key on) and LISTEN OR FEEL UNDER THE DASH FOR THE FLASHERS NOISE--LOOK NEAR THE STEERING COLUMN,BRAKE PEDAL, EVEN BEHIND THE ASH TRAY!! hope this helps you!

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Headlights do not turn on at the light switch.


manual headlamps

Visual Inspection Chart
Mechanical Electrical
  • Headlamp switch
  • Multifunction switch
  • Central junction box (CJB) fuse:
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    • 30 (15A)
    • 46 (10A)
    • 47 (10A)
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Autolamps

Visual Inspection Chart Mechanical Electrical
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  • Central junction box (CJB) fuses:
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    • 56 (30A)
  • Circuitry
  • Headlamp bulb
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If autolamp system, Vehicle security module has a headlamp rela inside of it. under left side of dash.

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1 Answer

Left tail light @ blinker out


check the bulb contacts for corrosion, also check inside the bulb holder

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