works.....then turn signal dash light doubles in speed and it doesn't work - 2008 F 150 4x4 ext. cab 80K miles

thanks

 

WHICH specific signal doesn't work?

Note: you will have to get out of the truck and go look....

 

drivers side rear.....been doing it for years.....lately A LOT

I have an ARE Cap and ARE did tap into those wires to supply the small brake light on the Cap

should I replace the relay under the steering wheel ?

 

Does the brake light on the cap work? Are there any LED's in the system?

 

brake light, turn signal on Cap does work.....no LED's

 

I'd be onlooking at everything from the splice rearward.