Reverse light issues

[withac]

Okay, I did an auxilliary back up light mod on my '** and in the process found out my reverse lights don't always come on. This isn't because I screwed something up, I discovered when I was just getting started. Sometimes when I put the gear selector in R the back up lights won't come on, if I shift out of reverse then back they will usually come on. Ideas? I've had issues with the tow/haul button from the wires breaking in the stearing column (fixed) could it be something like that?

 

[withac]

Bump

 

[withac]

Okay, I pulled the lower stearing column cover and I'm looking for wires, assuming green since the reverse light wires are green elsewhere. I'n not seeing any green wires in there that would be affected by the movement of the shift selector. Could there be something further down on the linkage of the shift lever?

 

[withac]

bump

 

[withac]

Seriously, nobody has any thoughts on this?

 

[withac]

bump

 

[Modded]

Surprised nobody came into help!
I have an NNBS but I can try.
When the truck does not show reverse lights while in reverse, is the odometer showing it to be in R?
If not, it could be some type of gear switch selector causing it?
Also how many watts are those auxillariy lights?

 

[afpj]

Have the same issue with reverse lights, and made a thread about it awhile back. Responses = 0, zip, nada. We are unique, or, no one knows how to fix, or it's so low priority. Probably the last option, as even when it works, no one pays attention anyway, so I just back up slow and make people stop.

 

[withac]

Surprised nobody came into help!
I have an NNBS but I can try.
When the truck does not show reverse lights while in reverse, is the odometer showing it to be in R?
If not, it could be some type of gear switch selector causing it?
Also how many watts are those auxillariy lights?

I believe 55W, but the problem existed before I installed them, that was just when I figured it out. I was trying to find a wire that I could tap for the aus. lights so while I was checking for reverse I figured out they didn't come on all the time. If I move the selector down into a forward gear then back to R they come on, oh yeah, the selector does indicate R. Also if I just wiggle the gear selector while leaving it in R they will come on, and it doesn't happen every time but it does happen often.'

Thanks for chiming in guys.

 

[afpj]

I believe 55W, but the problem existed before I installed them, that was just when I figured it out. I was trying to find a wire that I could tap for the aus. lights so while I was checking for reverse I figured out they didn't come on all the time. If I move the selector down into a forward gear then back to R they come on, oh yeah, the selector does indicate R. Also if I just wiggle the gear selector while leaving it in R they will come on, and it doesn't happen every time but it does happen often.'

Thanks for chiming in guys.

EXACT same symptoms. I even sprayed WD40 into the steering column, as well as the sliding bar underneath the dash and no help. Something about shifting to Reverse from Neutral always works, but Park to Revere is intermittent. I did not however take off the column cover. I had an issue last week where the shift indicator was acting eratic, and the door locks being tied to the indicator, would lock/unlock at the oddest times. I pounded on the steering column (like any engineer would do) and it fixed that, but the reverse light issue remains. So in theory, there's something probably going on in the column but I'm not good enough to tear it apart. (Not an automotive engineer)