No Brake Lights / No Signals - Lights work?

..:: sleestak ::.. · Feb 26, 2007

Here's an interesting problem that maybe someone can shed some light on....

Tail lights work when the lights are turned on. All my lights work fine, side markers, grill, tails, backup lights, etc.

However...

when I use my turn signals: nothing flashes (I can still hear them click)
when I press on the brake: only the thrid brake light lights up.

Checked all my fuses under the dash and they are all fine. Checked the bulbs and they work fine. Swapped out my brake peddle switch with a buddies and same story....where else could I be getting problems?

Focistang85 · Feb 26, 2007

Ignition switch possibly. That went bad on my mustang and slowly but steadily, I lost auxilary functions, reverse lights, turn signals, dome lights. . . . .

penguin · Feb 26, 2007

I would rule out the ignition switch myself, since the third brake light works. I cannot see how the ignition switch could affect the two main brake lights, but not the third brake light. I would be looking at the wiring to the main brake lights for issues, and I would check the bulbs and sockets carefully as well.

I assume you have not recently replace either of the taillight/brake bulbs? Using the wrong bulb could cause something like this.

..:: sleestak ::.. · Feb 26, 2007

no, we tested one with a brand new bulb as well.

yesterday we put in new suspension and I could see the wires running back to the hatch. They looked perfectly fine...like new pretty much.

After testing the bulbs, brake peddle switch, pulling all the fuses...I am really stumped. [dunno]

penguin · Feb 26, 2007

Check the wiring to the license plate bulb and the bulb/socket itself. Some people have had problems with a corroded socket and/or the wiring.

Other than that, it's time to go to the wiring schematics and the tedious job of tracing the circuit to see what common element might be causing your problem.

Canadian ST · Feb 27, 2007

I had it happen on my old car, it could be your turn signal assembly. try putting a little bit of tension on it like your about to use your high beams, and have a friend check your brake lights.

Volcomnow · Feb 27, 2007

there is actually a recall on the wiring harness on focuses. i work at ntb so i get all the info on this stuff. the wire harness actually has a weird bend in it and after time can break the wires to the taillights which cause them to go out sometimes. thats the only thing i can think of in your situation. i say bring it to the dealer and mention the recall and they will see if its messed up for free

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Focistang85 · Feb 27, 2007

The ignition switch could be going, not necessarily dead all the way, but on it's way.

inschool · Feb 27, 2007

do the turn signals in the front work or is this strictly a rear tail/stop problem?

..:: sleestak ::.. · Feb 27, 2007

the signals in the front dont work either. However all the lights work fine all around the vehicle, just nothing blinks when signaling or hazard and the tails dont get brighter when braking. The signals make that clicking sound, but not even the dash lights go on.

I have a friend bringing his 04 over and we are going to swap GEMs to see if maybe that is the problem.

bgjmusic · Jul 28, 2018

Did you ever get this fixed? I have the same problem!

No Brake Lights / No Signals - Lights work?

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