Tahoe is dead, electrically

[RealTahoeSS]

hello. I have a 2001 Tahoe SS. It died the other day. After turning off the engine a noise came from the dash, then everything went dead. I disconnected the battery worried about a fire. I’ve traced out the positive and negative battery cables; found no problems. I started taking the dash apart on the drivers side. I’m not sure where the body control module is located. I’ve tested every fuse. The 10 amp under the hood labeled “TRL B/U” is blown. It says it’s for the bcm. Could use some direction to correctly troubleshoot. Thanks for any help.

 

[swathdiver]

That fuse is for your back up lamps trailer wiring. I think the BCM on those is under the driver's side dash towards the left above the pedals. There should be a couple of modules there so read them.

 

[bottomline2000]

hello. I have a 2001 Tahoe SS. It died the other day. After turning off the engine a noise came from the dash, then everything went dead. I disconnected the battery worried about a fire. I’ve traced out the positive and negative battery cables; found no problems. I started taking the dash apart on the drivers side. I’m not sure where the body control module is located. I’ve tested every fuse. The 10 amp under the hood labeled “TRL B/U” is blown. It says it’s for the bcm. Could use some direction to correctly troubleshoot. Thanks for any help.

check the ground wire on the firewall running to the back of the engine. its on the drivers side and your hood light may share this ground.

 

[RealTahoeSS]

check the ground wire on the firewall running to the back of the engine. its on the drivers side and your hood light may share this ground.

Thanks. That was the first thing I checked. All the ground connections are good.

 

[RealTahoeSS]

That fuse is for your back up lamps trailer wiring. I think the BCM on those is under the driver's side dash towards the left above the pedals. There should be a couple of modules there so read them.

Thanks. Found modules, still couldn’t find the bcm.

 

[swathdiver]

Thanks. Found modules, still couldn’t find the bcm.

The BCM is a module.

 

[RealTahoeSS]

Yes I know it’s a module. I found other ones, not the one I’m looking for. Thank you

 

[Doubeleive]

this should be where it is, at least that's what your looking for, top dead center in photo with black squares printed on it, I sold my 2000 yukon but this photo is from a 2003 silvy should be in the same spot. but could be to the right in front of center console or could be to the left on firewall also.
https://i0.wp.com/104.197.77.209/wp-content/uploads/2011/02/DSC04776.jpg

 

[RealTahoeSS]

Thanks. I found that. It only has 3 plugs on it. I was told it has seven connections. Obviously bad info. On my end.

 

[bottomline2000]

Not to sound like captain obvious, but did u check the battery for voltage?

Sent from my SAMSUNG-SM-T377A using Tapatalk

 

[swathdiver]

Access to a Tech2 would make short work of this.

 

[rockola1971]

Access to a Tech2 would make short work of this.

Buy a ****** clone of one from here: https://www.aliexpress.com/wholesal...ext=gm+tech+2&initiative_id=RS_20171110174339 Its what I did and its well worth its weight in gold. Very easy to use and can do alot!

*Note* A BCM isnt going to shut you down like your symptom presents. Id be looking at the ignition switch down at the base of the steering column. It will shut you down exactly like your symptoms are.