Question about 1999 Ford F350 Regular Cab

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My brake lights and hazard blinkers dont work on 1990 F350

My brake lights and hazard blinkers dont work on my 1990 F350. we have chcked the fuses and replaced the bulbs and they still dont work. plz help!!!

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  • nominis May 11, 2010

    It could be a bad multi function switch.

    Do the turn singals work?

    What about the center high mount brake lamp?

    The Mulitfunctin switch can be tested but it needs to be removed to do it.

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1 Suggested Answer

bunnydawg
  • 5158 Answers

SOURCE: my brake lights and hazard blinkers don't work on my 1990 F350.

you need to replace the flasher relay... it's under the dash board either mounted in the fuse panel (larger then a regular relay) .... or it's just hanging under the dash by inself.

Robert

Please take a moment to rate this solution thanks

Posted on Feb 20, 2009

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I have a 1990 Mercury Cougar. Several problems...Blinkers, hazards, horn, and break lights are not working. However the break light in the back window comes on when the break is pressed. Checked fused and...


I am unaware of what a "CO" display is.
Now with the blinkers, hazard, horn and brake lights not working that may be the multi funtion switch (blinker switch) that is located inside the column (where the blinker lever attaches).
Obviously the blinker, hazard and horn will all work off of something in the column. Brake lights, you may think a switch on the pedal.

the brake lights do work with that switch but when you have the kind of tail lights where a turn signal light shares the same bulb as a brake light, the brake light is cancelled for the turn signal by running through the multi function switch inside the column.
The third brake light does not blink so its not on that same circuit.

Oct 07, 2011 | 1990 Mercury Cougar

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I have a 1992 Buick La Sabre Custom. My brake lights are not working but taillights, turn signals and hazard lights do work. Switch ok. fuse ok. ????????


if your fuse is good. and you have power at the brake light switch and when you hit the brakes you have power coming out the otherside of brake light switch/which would be the white wire/ check that the white wire is sending power up the turn signal switch. if theres power there and your turnsignals work? im afraid that your turnsignal switch is bad rare but it has been known to happen.

Jan 27, 2011 | 1992 Buick LeSabre

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1990 Corsica: the brake lights work but the blinkers dont...


does the hazard signals work? if they do, then replace all turn signal bulbs.

May 06, 2010 | 1990 Chevrolet Corsica

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Brake lights gone, hazards and blinkers work. fuses are good


Replace the turn signal switch. The 2 lower brake lights run through this swith but the upper one does not. Let me know if you have any questions. Its not a hard oub if you are fairly mechanical. I expensive to have a dealer do. The part new is about $65.00.

Nov 09, 2009 | 1997 Chevrolet Lumina

1 Answer

Brake Lights and Hazard still dont work


TEST FRONT RIGHT BLINKER CIRCUIT AND REPLACE THE BULB,,WITH PROPER BULB...A DOUBLE CIRCUIT BULB IN A SINGLE SOCKET WILL DO THAT ALSO A SINGLE SOCKET BULB IN A DOUBLE SOCKET HOLDER....CHECK LEFT SIDE BULB FOR ACURANCY

Aug 29, 2009 | 1993 Chevrolet Astro

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TURN SIGNAL, BRAKE & HAZARD LIGHTS


No Turn Signal Operation (blinker)The turn signal lights in your car are a basic electrical system that controls the front and rear blinker lights to alert the intended direction of the vehicle. We have listed some of the most common problems and repair troubleshooting tips below:
Troubleshooting Procedure
To start troubleshooting this problem:
  • Turn the key to the on position (do not start engine)
  • Inspect the system fuse located in the fuse panel and replace if needed. If you cannot find the location of the blinker fuse consult your owner's manual or an online repair manual
  • When a blinker flasher fails it can cause blinker lights to say on, not blink, or not go on at all. To test the blinker system flasher, remove the flasher unit and insert a jumper wire between the two terminals. If blinker stays on in both directions without blinking, replace the flasher. If you cannot find the location of the blinker flasher consult your owners manual or an online repair manual.
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Jul 09, 2009 | 1999 GMC Denali

1 Answer

My brake lights and hazard blinkers don't work on my 1990 F350. we have checked the fuses and replaced the bulbs and they still don't work. plz help!!!


you need to replace the flasher relay... it's under the dash board either mounted in the fuse panel (larger then a regular relay) .... or it's just hanging under the dash by inself.

Robert

Please take a moment to rate this solution thanks

Feb 20, 2009 | 1990 Ford F350

1 Answer

Brake Lights and Blinkers don't work


try tapping the hazard switch on and off a bunch of times fairly hard. these switches have a tendency to go bad and neither the hazards or turn signals will work

Dec 10, 2008 | 1999 Ford F350 Regular Cab

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