Alright i have no idea what is wrong but just yesterday all my turn signals worked perfectly fine and now when i turn on the right one the entire front. signals dont work. Although. the rear one works fine. not sure whats up.
Start with the basics. Check fuses (Fuse 48 - 15A, Fuse 33 - 15A). Check bulbs. Check the bulb receptacle(s) for corrosion. Swap bulbs from side to side and see if the problem follows the bulbs or the problem is restricted to the wiring.
Do the right front sidelights come on at all when the light switch is turned on? What do the indicators do if you have the sidelights on? What happens when you use the hazard flasher?
It is common for the bumper sidelight to fail and go unnoticed until the grill sidelight/indicator also fails.
All the lights work fine when the switch is on. When hazards are on the left front and rear flash and just the right rear flashes. The right dash signal doesn't come on at all when hazards are on or right turn signal. When I remove the right grill bulb the gauge indicator is always on and clicks twice as fast when the right turn signal is on.
If you are unable to diagnose your lighting issue, then I recommend having your local dealer take a look. They are in the best position to determine the cause of your concern. You can locate the closest one here. Please let me know if I can be of any additional help!
I haven't seen this before in a ford so I would like to help you with it.
Sounds to me like the multifunction switch. (lack of dash bulb)
Remove the switch then make note of how many powers are at the switch and where.
Then put on the left blinker recheck powers note how many NEW powers in this condition. We'll say 2 new powers 1 front 1 rear.
Now do the right blinker again check powers again.
is it the same as the left?
The schematic is usually
Fuse -> switch -> flasher -> dash bulb or
fuse -> flasher -> switch -> dash bulb
If someone can supply a schematic I can more easily diagnoise this for you.
My buddy work at a Ford garage and one of the techs told him that its either a bad ground or the multifunction switch. I have another fo fo to change the switch out of before I buy one. Will update if that solves the problem
it's easy to test the circuit @ the blinker.
Check for power with a test light.
If it light up then it's not the multiunction switch.
then put the testlight between both pins in the bulb socket
if it dosent work now then it's the ground.
But a bad ground would lightup the dash cluster that your blinker is blinking.
multi -> dash -> front blinker
So I would actuall check the Multi with your symptoms,
And a broken groung would give you a fast blink or bulb light.
I'm a certified mechanic in wiring (T6). And I do all the wiring for my fleet of 116 trucks.
Go to the blinker and check for power at the socket with a test light.
If it lights up on 1 wire then hook to the positive battery with the test light and chack the other wire for ground.
Got to the multifunction switch test all the wires with a test light for power.
turn on the good side and recheck for power.
There will probally be 2 new powers 1 front 1 rear.
Now put on the bad side and check for new powers.
Start with that.
If you don't own a test light buy 1 it's cheaper than $100 an hour.
Probally 2 hours to fix this at dealer if easy since it not the basics.
Post your findings then I will give you the next steps.
I go to work at 2pm est tomorrow so do this before then if you can incase I need to look at schematics at work. Other wise I can't get them till monday.
I will need year, trim model (lx or whatever), and motor size to look up the schematics.
I haven't found a wiring problem that I can't figure out yet.