[James Steward]

NEED HELP i have an 05 yukon xl 1500 the batery gage started climbing higher and higher untill fully peged out altinator and battery are charging fine at 14.2 and battery at 12.4 when off the temp gage then started climbing and then became fully pegged and stays there after turning vehicle off, i was told it was the stepper motors and had them replaced and the PRND21 fixed as well cause you could barley see it,i just got it back and installed it selector light is bright again but volts meter pegged out again as soon as i turned the key the temp gage worked at first drove it about a mile got to temp at 210 drove a mile back and kept climbing to 240 i shut the truck off and checked fluids fans wernt running and hoses not burning hot or stiff so thermostat not stuck started truck back up and temp gage pegged again all outher gages work great at a loss for whats going on and still no codes or check engine lights on please help......disabled in Wisconsin.

 

[xPosTech]

Have you talked to the shop that did the refurb of the cluster? Have you double checked the connectors on the cluster?

Ted

 

[James Steward]

Have you talked to the shop that did the refurb of the cluster? Have you double checked the connectors on the cluster?

Ted

Yes they didnt see any problems with the circuitry just the motors i re removed it last night to inspect the work done and everything checks out good Solder joints and new stepper motors

 

[xPosTech]

Are you sure you got back your cluster?

Ted

 

[James Steward]

Yes all numbers match from inside and out, i trid disconnecting the battery and let sit reconected and gagges returned to normal in key on position but after turning over volt metergoes to 14 shut off it stays turn on again and peggs thermostat sits at 160 held hose for 5 min and could feel it open gagge read 210 went for a 4 mile ride gage went to red line shut off and turnd on and gage pegged i dont have any outher electrical issues with the truck could this be a problem in the computer itself?

 

[xPosTech]

Kings X. I just reread your first post. You mean the cluster is doing the same thing it did before the refurb?

Ted

 

[xPosTech]

Give me a little history of the truck. Did you buy it new or used? How long have you had it and has anything electrical been replaced?

Ted

 

[James Steward]

Yes doing the same as before, its an o5 yukon xl1500 bought this july from a dealership with 193000 on it in o7 it was involved in front end colition and a rear end in 09 acording to the carfax ,the only problems ive had since bought was a tpm sensor and a rear a/c line leak truck runs and drives great untill acouple of days ago after the 30 below days i started truck and volt gage didnt move drove to gas station restarted and was reading 14 drove to a freinds and gage didnt drop from14 after shutting off when i re started it pegged on the way home is when the temp gauge pegged and serched the problem on line and all i could find was that it was the stepper motors so had them replaced and resisters for the display re solderd because you couldnt see the prnd321 and its still doing the same thing as before

 

[xPosTech]

Check the dash ground near the OBD connector. Also the ground from the battery to the fender, the firewall and the frame. There's another ground near the thermostat housing for the PCM.

Ted

 

[silverado002]

Also, it is possible the BCM is defective but they are pretty stout. Not too many problems with them. Check the connectors on the BCM to make sure they are tight too. Not sure where yours is located but mine is under dash near steering wheel.

 

[James Steward]

Thank you i will try that

 

[James Steward]

I checked the gounds and cleand them all up its still doing it , i took a video of what its doing but wont let me upload it do you have a email or can you text me at 9204504919 so i can show you the video may give a better idea

 

[sucio7]

find someone else with same vehicle and swap the clusters out .don't think the cluster was repaired correctly

 

[xPosTech]

Sucio the cluster was doing the same thing before it was refurbished. And probably easier to swap BCM with a like truck.

Ted

 

[James Steward]

The bcm is the cluster or something else

 

[James Steward]

Im heading to the junk yard tomorrow to find a cluster

 

[xPosTech]

The Body Control Module. Let us know how the cluster works out.

Ted

 

[James Steward]

The Body Control Module. Let us know how the cluster works out.

Ted

Were is the bcm located, im preaty shure the board is toast the volt gage stoped working entirely now

 

[sucio7]

bcm is a black box under the steering colum

 

[sucio7]

Sucio the cluster was doing the same thing before it was refurbished. And probably easier to swap BCM with a like truck.

Ted

yes but I believe bcm has to be programmed