My reverse lights don't work, so I guess it could be the lamps, the reverse light switch, or the fuse. I want to check the fuse first.

 

I'm not sure where it is. I have the same problem. Mine havn't worked in about a year. But I looked and since none of the fuses were blown, I didn't think it was the problem. I may have overlooked something though.

 

Fuse #26 in the fuse panel on the drivers side of the dash.

 

I hope you had to go out and in look and didn't know that off the top of your head lol.

 

Nope sorry. My fingers never left my hand.

The wiring specs in the FSM is wonderful.

 

Thanks. That fuse is fine (checked visually and with a meter), so I guess it is most likely that the backup light switch is bad (since both lamps are not working). Is it much of a job to replace one of those?

 

I'm guessing its the same reason mine do not work. I'm also now assuming it has to do with both of our trucks being a manual.

 

The problem was the reverse light switch. These cost about $15 from an auto parts store (significantly cheaper from e.g., RockAuto.com), and installing a new one brought both reverse lights back to life. It seemed like an easy job (especially if the vehicle is on a lift), because it only took my mechanic about a minute to do it.