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Lost blinkers AND brake lights at the same time!

Fast Electric Chris
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Lost blinkers AND brake lights at the same time!

Hello. Im new so HI! Im a huge Ford Fan, I love these things! I have a 93' F-150 that I picked up for a winter truck. I have my 99' Mustang GT Conv in the garage sleeping for the winter. 8)

Anyway, Truck runs good, but today I start it up, and no turn signals, and no brake lights. I hit the turn signal lever and nothing. Hit the brake pedal and nothing. My running lights are all running. Rear, Front, Headlights all work. But the blinker does not "blink", nor does the little green arrow light come on in the dash. Same for the brake lights. I hit the brake pedal and neither light up. Both brake lights just stopped working too...

All at the same time! :-? Yesterday everything was working well.....

I checked the fuses that are located next to and under the steering column. None are blown.

HELP! Thanks! :D

Any ideas? Thanks.

EDIT: I'll clarify the vehicle I have. 93' F150 2wd XL reg cab long box, 300 I6, Auto tranny. Also, I looked on here for around an hour and could not find a single post with these two same issues.

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rikard
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Post by rikard »

If the hazard flasher is bad and you push the hazard flasher button your brake lights won't work. The hazard flasher relay is located on the pass side of the dash.
regards
rikard

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CherokeePathfinder
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Post by CherokeePathfinder »

Good call rikard.

Also, if the hazzard button is not pushed in all the way it will cause these symptoms. Happened on my mom's '93 Tempo.

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Chris Crash
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Post by Chris Crash »

Sounds like the multi-function switch that controls your turn signals gave up the ghost or possibly became disconnected(doubt that).
Image
Even the brake light is controlled through it. Verify that Fuse 13 (15A) is good first, just to be sure. You could try a new fuse even if the old one looks good. It's cheaper than a new switch and easy to try.

To pull the switch, remove the steering column cover shrounds, then I believe it is two screws, one top and one bottom, from the module (lever stays attached). It should then pull away from the column and it's electrical connections. Installation is the reverse. New ones start at around $55, but you might find a used one at a junkyard. Any turn signal switch from the following will fit: 1992 - 1997 AEROSTAR
1992 - 1997 F-350 PICKUP
1992 - 1996 BRONCO
1992 - 1997 F-450 SUPER DUTY PICKUP
1992 - 1997 F-150 PICKUP
1992 - 1997 F53 STRIPPED CHASSIS
1992 - 1997 F-250 PICKUP
1992 - 1994 F59 STRIPPED CHASSIS

Good luck.

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Post by Chris Crash »

Rikard/Cherokee- you sure about that flasher? I'm looking at the wiring diagram and it shows the brake on/off switch feeds a different terminal on the multi-function switch than the hazard flasher does. The way it looks is that if the flasher fails, it's only going to take out the hazard light function.

Same as say if your turn signal flasher went out, you'd still have the same bulbs light up as parking/marker lights. They wouldn't stop working altogether.

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Post by Fast Electric Chris »

Thanks guys! I have one questions....

Would the control switch make the brake lights not work when I push the brake peddle? Hmmmmmmmmm..... Cause I would like blinkers, but the brake lights are more inportant to me!

Thanks again!

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Post by projectsho89 »

I think Cherokee's idea about the hazard switch not being in position is likely correct (or that portion of the MFS has failed). It is the only component that is common to all circuit elements in question.

I'd otherwise suspect that you have a tilt steering column and that the connector to the MFS is either loose or has multiple failed connector pins.

I can't see any way that a faulty hazard or turn signal flasher can take out the brake lights since neither device's output is in play when only the brake lights are activated.

Steve

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Post by rikard »

When the hazard flasher failed on my 92 F150 I would lose my brake lights if the button was PUSHED IN. The turn signals also wouldn't work. With the button in the normal posistion brakes and directionals worked fine. I was surprised myself when I replaced the flasher and everything worked. Figured it must be because the flasher controls all of the directionals and not just one side. Figured its a good place to start.
regards and Happy Thanksgiving
rikard

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Post by Chris Crash »

Fast Electric Chris/Projectsho89- the hazard switch is NOT the only thing common. In fact, according to the wiring diagram the only common item is the multifunction switch. It's what ties all the different lights together, including brake lights. The hazard flasher (not the switch now, the actual little round gizmo that plugs into the fuse panel) is separate from that switch.

As far as what Rikard is saying, I think I understand better now. When you turn on your hazards, via the push button switch, it is wired to where it has priority over EVERYTHING ELSE. I mean, logically, you wouldn't want to be able to override your hazards by flipping your turn signal. And since the rear lamps are used for turning, braking, and hazard indication, that's why brakes don't appear to work is because hazards are over riding them.

As I am typing this I do see everyone else's point. If the flasher switch is on, then the multi function switch would think hazards are in charge, but if the flasher mechanism in the fuse panel is bad, nothing will be flashing so you won't know they are turned on. I see.
Good luck either way!
Happy Turkey Day!

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Post by CherokeePathfinder »

When the turn signals & brake lights wouldn't work on my mom's Tempo I replaced bulbs & relays, after that I was sitting behind the wheel when I noticed that the hazzard button looked like it was sticking half way out, I pushed the button in which released the hazzard button all the way, pushed it again & everything started working, I put the bulbs & relays back in that I had taken out & everything still worked.

That is something I check now when those type of problems happen.

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Hate to revive an old topic....

Post by feeniks4.9 »

I had a similar problem with my '91 (2WD, 5-speed, I6) F-150 - headlights and running lights work, turn signals, flashers and brake lights(when pedal depressed) do not. I am running into trouble finding the correct "turn signal switch". I do not have wipers on the column, I do not have tilt, and my high beam switch is on the floor, yet all I can seem to find online are the replacement switches for the wiper/tilt option. I have tried unsuccessfully to locate the correct Motorcraft part number, but either I am a complete tool, or they just don't list it at Motorcraft.com - does anyone have any advice for locating the *correct* number? Thank you in advance...

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Post by Chris Crash »

Is there any particular reason you want it from Motorcraft? Advance Auto (a.k.a. PartsAmerica.com) carries the multifunction switch you want made by either GP Sorenson or Niehoff. Cost is $40+/-. The only thing to watch out for when ordering is to make sure you are getting the part designed for or without a tilt column. Just put your vehicle info in at the website and search out turn signal switch. It'll come up with all your options.

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Post by feeniks4.9 »

Wow, you're fast... I only really wanted the Motorcraft part in an attempt to narrow down the search, the tilt/without tilt option causing me to pull an extra few hairs. For some reason, I couldn't find it via Parts America (Checker Auto in the SW US), but I did locate a Duralast at Autozone for the same price you indicated. I'm fairly adept at my own repairs, but electrical has always made me a bit nervous - eventually I'll get over it and fix it, but running into so many different options was frustrating - so was not finding anything at Motorcraft - it had me thinking, "great, part doesn't exist, back to square one..." when I thought I'd solved my problem. Do you have an opinion on which replacement brand might be better?

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Post by Chris Crash »

Duralast is crap. Don't use it. For that matter, so is pretty much anything you get from Autozone.

On PartsAmerica.com, the 4 part #s you're looking for are:
GP no tilt - SC6
GP w/tilt - SC7
Niehoff w/tilt - DS29541
Niehoff no tilt - DS29551

Throw any of those part #s in PartsAmerica.com's search box and they come right up.

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Post by feeniks4.9 »

I found it, decent price, too. Might even splurge on buying a puller instead of renting one, they seem fairly inexpensive, and you just never know...

Thank you so much, yet again!

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Post by Valley92 »

Vampyre is right on target with his solution to this problem. Thanks for the info. My lights failed all of a sudden.Found no blown fuses etc. Came to F150 and found the solution. New turn signal switch from Advance Auto - $58.00 plus tax.
Thanks again to the Vampyreman

V92

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Re: Lost blinkers AND brake lights at the same time!

Post by Sub1ime14 »

Just adding another multi-function switch confirmation. With mine, if I wiggled the 4-way button toward me and to the left (toward that corner), signals and brakes worked fine. If I wiggled it away from me and to the right, nothing worked. Of course, as I wiggled it away and left or toward and right, you'd have mixed results where some things worked but not others. My replacement multi function switch arrives via FedEx today.

1996 Ford F150 XLT, 32k miles

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Re: Lost blinkers AND brake lights at the same time!

Post by rikard »

Holy post revival !!

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