Turn signal/brake light question.

[powerstroker66]

hi, all my 2000 f450 is having some light issues. When using my turn signals and hazards, the lights both front and back and the indicator lights stay on and do not flash. There also is a buzzing that only occurs when I do so. After doing some reading it can be the multi-switch behind the dash however all my lights are working but stay on and don't flash so could it just be the relay? thanks all!

 

[Arisley]

Swap all the flashers. They are cheap enough that it doesn't matter if you are just throwing money at a problem.

 

[powerstroker66]

is it just the multi-switch and relay or is there something else?

 

[powerstroker66]

replaced the turn signal relay and cleaned the contacts in the multi switch and still no luck. wipers work fine,brake lights work, all fuses good. hazards and turn signals still stay on and buzz...anymore ideas?

 

[tomlin]

Does it have a trailer harness adapter on the rear? If so start there. I have seen issues caused by them in the past.

 

[powerstroker66]

found the problem. My rear lights were LEDs so with no resistance to trigger the relay. Put an electronically timed one in and all problems fixed. Thanks all!