Backup Light Problem

[nyokie]

did a search, even googled to no avail

my damned backup lights wont turn off, key off or on, in drive or park, engine running or not.

any idea where the switch is and how to test it? hopefully not inside the column grrrr

 

07 sierra gmt900 nnbs

[nyokie]

looking like im the only 1 with a ghost in the reverse lights

[oldschool327]

Disconnect the battery for 15 minutes. See if that resets anything. Could also try pulling fuse at the same time

[nyokie]

i pulled the fuse yesterday. because it was killing my battery almost overnight until i figured out the lights were stayin on. will try putting the fuse back in to see if if resets itself

[THE BIGPUNN]

Any luck? My back up lights come on the same time i hit the brakes. Gm blames it on my aftermarket remote start. They blame it on GM. Im in the middle with noone that will fix it without charging me a bundle! I took out the back up fuse for now, but it sucks when i need to back up and noone can tell.

[nyokie]

Any luck? My back up lights come on the same time i hit the brakes. Gm blames it on my aftermarket remote start. They blame it on GM. Im in the middle with noone that will fix it without charging me a bundle! I took out the back up fuse for now, but it sucks when i need to back up and noone can tell.

no luck so far, that kinda does sound like the remote start may have done that since they are separate circuits? but who knows with the courtesy lights tied into them

anyone know where the actual reverse light switch is ill check it out with the old test light maybe just replace it

[Duelin]

Any luck? My back up lights come on the same time i hit the brakes. Gm blames it on my aftermarket remote start. They blame it on GM. Im in the middle with noone that will fix it without charging me a bundle! I took out the back up fuse for now, but it sucks when i need to back up and noone can tell.

no luck so far, that kinda does sound like the remote start may have done that since they are separate circuits? but who knows with the courtesy lights tied into them

anyone know where the actual reverse light switch is ill check it out with the old test light maybe just replace it

 

 

 

Nyokie, The backup lamps are controlled by the neutral safety switch. It should be bolted to the side of the trans.

[Gone Again]

Any luck? My back up lights come on the same time i hit the brakes. Gm blames it on my aftermarket remote start. They blame it on GM. Im in the middle with noone that will fix it without charging me a bundle! I took out the back up fuse for now, but it sucks when i need to back up and noone can tell.

no luck so far, that kinda does sound like the remote start may have done that since they are separate circuits? but who knows with the courtesy lights tied into them

anyone know where the actual reverse light switch is ill check it out with the old test light maybe just replace it

 

The back up lights are controlled by the BCM on your 07 GMC. Have is scanned for codes. If no codes-check BU relay in fuse box under hood. If relay OK-check relay circuit for short to power. If that's OK-you could have a bad BCM. Might want to have it checked at a shop if you're not able to do this.

[nyokie]

Any luck? My back up lights come on the same time i hit the brakes. Gm blames it on my aftermarket remote start. They blame it on GM. Im in the middle with noone that will fix it without charging me a bundle! I took out the back up fuse for now, but it sucks when i need to back up and noone can tell.

no luck so far, that kinda does sound like the remote start may have done that since they are separate circuits? but who knows with the courtesy lights tied into them

anyone know where the actual reverse light switch is ill check it out with the old test light maybe just replace it

 

The back up lights are controlled by the BCM on your 07 GMC. Have is scanned for codes. If no codes-check BU relay in fuse box under hood. If relay OK-check relay circuit for short to power. If that's OK-you could have a bad BCM. Might want to have it checked at a shop if you're not able to do this.

 

ok thanx i will get it checked out, ill check relay 1st sounds like a good starting point as its coming on when it shouldnt have power with key turned off