Spare Tire Pressure Sensor

[latvius]

I noticed this in the tech 2 about a TPMS for the spare tire. Could you enable this feature and put a sensor in the spare tire in a 2005 tahoe? Has anyone done this?

 

[Fless]

I don't know why not. I've heard it done but don't have any specific proof. I should try it with my '04 -- my Autel will program sensors.

I think it also needs to be 'turned on' (enabled) in the BCM so the TPMS light would come on if it got low.

 

[swathdiver]

Go into Module Setup or something like that to see if you can turn on the 5th sensor.

 

[GMCChevy]

It could be one if those things that's only there and won't work unless it was already built into the vehicle as an option.. which could well be if it's a requirement of some foreign market to monitor the spare tire. Which in a way isn't a bad idea.

 

[Fless]

Go into Module Setup or something like that to see if you can turn on the 5th sensor.

Good idea. Turn it on without a sensor installed to see if the cluster light or message comes up.

 

[latvius]

Good idea. Turn it on without a sensor installed to see if the cluster light or message comes up.

Will do, thx!

 

[latvius]

I tried to enable it, every time I use this tech 2 I am bewildered by how hard it is to figure out what it can do.

I found a sub menu that has spare tire Disable, why have a menu item to disable it when it isn't enabled to begin with? Makes no sense to me. So I dunno it's either you can't enable it or it is user error on my part...

 

[TJ Baker]

I have an 05 Yukon. I might try writing in a sensor number to see if that makes it toss a code or set the light on when nothing reports.

 

[swathdiver]

View attachment 447667

There's the button right there to enable it. It's the 3rd button from the left, top row buttons.

 

[latvius]

There's the button right there to enable it. It's the 3rd button from the left, top row buttons.

Yeah I pressed that but I am trying to remember what it did if anything.

it's just mind boggling to me why there would be a menu item for Spare Tire TPMS Disable, so if the menu item is enabled that means it is actually disabling the function?
So I see the button to disable the function which (theoretically) if I press that it would change the spare tire TPMS disable function to disabled which would actually enable the spare tire monitoring function.
I mean who wrote this code? Translated from Chinese?

I will hook it up again and try it, so when I press the disable button the command status that reads none right now should change to something? and then I just back out of that menu and go back into the TPMS part and see if anything changed?

 

[swathdiver]

Yeah I pressed that but I am trying to remember what it did if anything.

it's just mind boggling to me why there would be a menu item for Spare Tire TPMS Disable, so if the menu item is enabled that means it is actually disabling the function?
So I see the button to disable the function which (theoretically) if I press that it would change the spare tire TPMS disable function to disabled which would actually enable the spare tire monitoring function.
I mean who wrote this code? Translated from Chinese?

I will hook it up again and try it, so when I press the disable button the command status that reads none right now should change to something? and then I just back out of that menu and go back into the TPMS part and see if anything changed?

I would think that if you enabled it, you would have to relearn all the sensor positions to get a reading on the scan tool.

 

[latvius]

I don't have a sensor in the spare tire but I kinda figured what someone mentioned that if I enabled it I would geta tpms warning that it couldnt communicate.

 

[mattbta]

I am pretty sure i put some PIDs into torque and was able to get spare pressure without any tech-2 changes. Would have to dig out my android and check.