F150online Forums - Reverse lights won't come on

F150online Forums (https://www.f150online.com/forums/)

- Electrical Systems (https://www.f150online.com/forums/electrical-systems-67/)

- - Reverse lights won't come on (https://www.f150online.com/forums/electrical-systems/309792-reverse-lights-wont-come.html)

Reverse lights won't come on

My back up/reverse lights don't come on when the truck is in reverse. I checked everyone of the fuses in the panel and there isn't one damn blown fuse in the bunch. The bulbs are also fine as best as I can tell, meaning the coil is still intact. Any thoughts on what it can be?

Year and transmission?????

When the transmission is placed in R, the signal from the DTR sensor (on the transmission) sends a signal to energize the relay in the central junction box under the dash. The relay then switches power from fuse F2.10 to the back-up lamps, the back-up lamp line on the trailler connector, and the electrochromatic mirror and parking aid module (if equipped).

Check fuse F2.10 and fuse F2.14 in the central junction box.

Check output of the DTR sensor (does the relay click)

Check the backup lamp relay.

If equipped with the mirror and/or parking aid, do they work properly?

Steve

SHO89, i crawled under the dash and checked all the fuses last night and they are all good. How do you check the other things that you listed?