The turn signals and hazaard lights on my 2006 F150 just stopped working all of a sudden. I've checked all of the fuses and they're fine. All I've checked are fuses. Are there relays that should be checked? Should I check the multi-function switch? Is it possible that the switch could be stuck and not bad? Thanks for any help you can give. It's driving me crazy.

 

Do the brake lamps work ?

Have you done any modifications ( line of fire, LED tail lamps, etc ).

Do you hear the flasher working when you click on the turn signal ?

 

The brake lights do still work.

I've made no modifications whatsoever.

There is no noise when I move the turn signal lever. It just clicks in to place and sits there.

 

With that info, you next step was correct ( testing the MFS )

 

Ok. Thanks! How does one test the MFS?

 

Remove the MFS, and check the pins in the chart above.

Watch the connector number in the chart, and what the shape of it.

 

Thanks sccully. I guess the only way to test it is with a meter right? I'm not that good with those things.

 

A meter is the only sure way. You need to check resistance between pins.

 

What was your outcome on this. My 2005 started doing the exact same thing last night. Turn signals dont work, hazards dont work and cruise control does not work. No blown fuses, no burned out tail lights, stop lights work fine, running lights work fine, headlights and brights work fine, everything seems to be fine.

Symptom is when you activate turn signal or hazards, the light stays on solid and does not blink, cruise control just does not activate at all.

Ideas?

I am about over this ****ing lemon truck

 

this is kinda off subject, but does anybody know if you can have clear lense with clear turn signals in oklahoma??

 

Crazynip...I wound up taking it to the dealership. They found a short in the wiring. It was a $200 repair but everything works fine now.

 

This is really getting odd, the turn signals work SOMETIMES when the headlights are OFF. Last night I was driving it, and occasionally with the lights ON, the right TS would work, occasionally the Cruise would work, but by the end of the night, neither TS or cruise (or hazards) would work. It's always something with this truck. One other time, both turn signals would work until I hit the brakes, then the light for the turn signal would "freeze", stay on solid until I let off the brakes.

 

Have you tested the MFS ?

 

Ok anyone ever heard of their flashers and brake lights not working but their hazards working fine? Mine just stopped on my 03 lariat. No brake lights. No flashers front or back. But when hazard lights on they all work and brake light over cab works.

 

Ok figured it out. My father in law had lowered the tilt on my steering wheel and there was a short. I raised it back up and everything works fine now. So if anyone else comes across the same problem that might give them a good place to start looking