[SeptemberC]

I'm travelling with my dad this week and he has a 2011 Dodge Ram Diesel 3500. I just realized that he has no reverse lights. I replaced the bulbs (even though they did not appear to be blown) Can someone please tell me what else I can check? I can't find anything in his manual for a fuse for the reverse lights. There is a fuse box in the engine compartment and inside the cabin on the drivers side. PLEASE just tell me where to check! Thank you in advance!

 

[Twistin Steel]

So I have to make a few assumption on your vehicle build information, but I had a similar problem when we got out 3500 Crew Cab Dually. There is no fuse the directly feeds the reverse lights. The reverse light feed/harness comes out of the TIPM and runs down the outside of the frame rail to about mid way of the cab; it then goes over the frame and then runs down the inside of the frame rail. I found my issue that where it went over the frame rail caused wires rub on the bottom of the cab and break opened the circuit. If you look through my posts I did attach pictures of the harness

 

[SeptemberC]

Thank you. Do you recall what the title of your post is so I can find it? Is there a switch for the reverse lights on the transmission?

 

[Twistin Steel]

"Dually Bed Clearance - tailgate light bar" was the post. But if you look under the cab of the truck on the drivers side between the frame rail and the floor of the cab you should see the harness routed over the top of the rail. Just forward of it going over the rail is a connector. Disconnect the connector and pull the harness loose so you can inspect it.