IID tool and TPMS

[roverhockey]

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[umbertob]

That's interesting. I'm almost sure that prior to turning it off, there was at least something in that sub menu that said 'pressure ok' or whatever (2013). Are you saying there is no way at all to know if it's even working? (short of letting the air out of a tire I guess, maybe I'll try that)
I honestly don't care if it works or not but not knowing things bugs the crap out of me. Must. Figure. It. OUT!!

As far as I know, you can only tell if it's NOT working on a 2013 or earlier (faults and TPMS icons will pop up if it senses a fault with the system, or if it detects a tire is low on air), so if you have enabled the system with IIDTool and don't get any faults, it should be up and running... Not a bad idea to deflate a tire and see what happens. Just remember that the tire needs to be down at least 25% from factory PSI specs for the system to cause a "Tire low" warning to pop up, so deflating it 6 or 7 PSI will probably not be enough to trigger the warning.

 

[BrandonM7]

That's interesting. I'm almost sure that prior to turning it off, there was at least something in that sub menu that said 'pressure ok' or whatever (2013). Are you saying there is no way at all to know if it's even working? (short of letting the air out of a tire I guess, maybe I'll try that)
I honestly don't care if it works or not but not knowing things bugs the crap out of me. Must. Figure. It. OUT!!

I don't think so. I don't recall such a sub menu on my LR4 or the wife's RRS, at least.

 

[to8nbeyond]

I just had my tires rotated today. They all went counter clockwise so now my spare is on the back right. The back left is now the spare. The system thinks my spare is the back left still and warns of low pressure since it is deflated to fit.

I get the same menu as above. Is there any way to redirect or rename the wheels properly after rotation?

Edit: I found a post where Umberto said they reset themselves in terms of location after driving around for a bit. I'll turn off the spare warning and see if that does it. The warning seemed to change from before where it would show the spare in the graphic but it went away after a short bit and didn't persist.

 

[umbertob]

Just FYI, and I hope the results are different for you as it may depend on model year, I turned off "TPMS on spare wheel" with my IIDTool years ago, and yet I still get the warning every time I start the engine (I have a MY2013). Thankfully, unlike the running wheels the spare tire's TPMS warning is designed to only stay on for a handful of seconds, then it extinguishes and doesn't come back until the next restart, so it doesn't bother me one bit. But yeah, the system should eventually figure out on its own where your sensors are now.

PS: Just realized I said the exact same thing in the previous page of this thread... Sorry about the redundant info.

 

[to8nbeyond]

I think I’ve gotten myself into a weird spot. Before I rotated my tires the other day, I had a quick inspection done before a road trip we’re about to take. My tech turned off my spare tpms warning during this even though it didn’t bother me since it went away after a few seconds. Now that I’ve rotated the tires, I get a tpme system fault. The GAP tool threw two errors. One system and that indicated the tire indicator couldn’t activate.

Is there a way to get to square one with the GAP tool? I cleared the faults but the error still comes up on the dash after shutting down and restarting.

I may not understand how the GPA tool is supposed to work too. I’ve watched a bunch of the videos online but haven’t come across a tpms specific one yet.

Am I right in assuming my tech would have a more detailed access to settings than the GAP tool?

 

[gsxr]

Am I right in assuming my tech would have a more detailed access to settings than the GAP tool?

I've always wondered about this. I've never seen the JLR dealer hardware / software. Does the dealer use a different tool? If so, what is it?

If the dealer has the same thing (GAP IID), can they do things we can't with our 'consumer' GAP?

In the Mercedes world, you can get bootleg diagnostic systems from China that are clones of the dealer hardware, with the same software. (SDS C3 hardware, Xentry/DAS/EPC/WIS software.) Some of these kits actually do more than what the dealer can do! There is a special keygen that creates a license which unlocks "engineering" options, so you can (for example) enable some Euro-only features/functions, and also really hose things up if you don't translate the technical German properly. Costs less than GAP IID and isn't VIN-locked either.

 

[ryanjl]

The GAP Tool is made by a guy in France. I'm fairly certain it's nothing like the stuff the dealer has, although I'm not sure what all the dealer can do that the GAP Tool cannot.

 

[umbertob]

The dealer should be able to manually input the serial number of each wheel sensor to reset the system using his/her official diagnostics system - something you cannot do with an IIDTool (not yet, anyway.) They'll charge you for the service, but should be able to sort it if it's just a matter of your TPMS getting confused. Another thing you can try to do is to re-enable TPMS spare wheel monitoring with IIDTool and see what happens after some driving around? If the TPMS system fault sticks around, go back to the original setup (before the tire rotation - I know, it's a PITA to rotate tires once, let alone twice), clear the faults with IDTool and test drive the car again. It takes several miles of sustained speed for some of these faults to clear, so don't get discouraged if they pop back right away - they may clear on the their own while you are driving.

My understanding is that the TPMS will throw a fault if it cannot detect / communicate with a single specific sensor in your running wheels (indicating the trouble corner), but if it cannot detect two or more it will just throw a generic system fault.

Have you sent an email to the GAP team to see if they might be able to help? They are in a different time zone so they may not get back to you immediately, but they have been very helpful with me in the past and may have ideas for you to try.

 

[umbertob]

The GAP Tool is made by a guy in France.

France?!? I thought they were from Canada! (Québécois, I guess...)