I have a problem with my turn signal only blinking for a short time and then stopping. ive replaced the multi switch twice thinking i had a bad multi switch but it still does the same thing. Any suggestions what the problem could be if its not the multi switch?

Sounds like you have a bulb filament touching the second filament in the same bulb. Check them all to be sure.

bad multi-function switch

I would think it is a short or bad connection in the wiring harness coming out of the switch.

its most likley a bad bulb or actually a connection.. couple things.. check bulb connection n check ground wires... if that dont work replace flasher..

why skip RR lamp? what does IT DO? be like 1st 1st look.
dim, out, fast?

the rapid is talking to you
it means current is wrong,
shorted, or open lines. to the right.
its the wiring
if the bulbs are like 1157 brass base bulbs
why not replace them first , they can short inside,
asking online for guessing is silly, why listen to 10 examples for this.
but is cut wires.
shorted wires.
keep i mind the blinker asks funny for both opens and shorts
its a feature, that.
low current or too much.

the acid test is connect 2 TEST bulbs in parallel to the multi-function switch output right side,
blinks ok now, bingo bad lamps or bad wiring, from there to the right side.

if the hazard fails you never said????
if rigth front is dim or dead the bulb is blown or shorted
if new bulb there , then the wires are shorted.
to it.
the only help on line worth squat is how to test and use your meter.
you can, check for voltage
you can check continuity on that line (its just 1 wire)
and check for shorts on that wire to ground (lamps pulled right side to do that, lamps read 0 ohms cold)
look for collision damage RF? behind lamp sockets?
be first.
in my book.
looking is always first. sure.


I have your SM book open now, chapter 8w-50
the haz/blink module has just 2 pins, left and right out.
pin 3 on the module runs front and rear blinks, (a fact to know)
RF is BR/RD, brown -red stripe?
all comments USA on USA forum. USA car.
ok?

the right side lamp (sidemaker) only blinks turns if parks ARE oFF

Id try 2 new blinker lamps front and 1 rear.
that be first. or test the lamp on a battery , and no not get burned fingers hot wring a shorted lamp.

wish i knew
what rear did
and what both did on HAZ
out, dim or to fast.

No, not a relay. You have a short somewhere. It might be your turn signal switch. Do all the signals work on outside of car? If you have one not working, that may be where short has developed-in the lines to the one not working. If they all work, I think you might need a new switch. If you have a tilt steering wheel, check the harness in the steering column leading up to turn switch for wires that kinked, stripped, or appear bad. Good luck.

This is most likely going to be an issue with a relay. The relay on the fords that is tied into the blinker module can go bad is it gets wet or over loaded. Are there any after market things added to your vehichle? This can also be caused by overloading part of your ECU if you have after market headlights, or headlights that carry too high a load. When it blinks for 3-4 times and stops, does it blink faster than normal? This can be a sign of a false connection to the light itself. Such as having the wrong bulb in for the blinker.

replace flasher relay first.cheap and easy.switch is rare failure.

Sounds like the signal multi-function switch has a short it it. Get a new one.

the multifunction switch is going bad.