TPMS programmed itself?
Thread Starter
Instructor
Joined: Mar 2014
Posts: 205
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From: Alpine TX
TPMS programmed itself?
I took my RR tire and wheel off the other day so I could take it to the tire store to have a new TPMS installed. Got it back and put it on. They gave me the old TPMS, and I saw the new one go in.
I took the car out the other day, and noticed the RR sensor was accurately reading the pressure. How is this possible? I did not program it in...
The left rear is also out, but I wanted to only do the one at this time. I wanted to see how gentle they were with the rims before commiting to the rest.
I took the car out the other day, and noticed the RR sensor was accurately reading the pressure. How is this possible? I did not program it in...
The left rear is also out, but I wanted to only do the one at this time. I wanted to see how gentle they were with the rims before commiting to the rest.
Team Owner
Joined: Jul 2006
Posts: 22,109
Likes: 4,137
From: Kannapolis NC
They may have been programmed for the wrong wheel location. I'd make sure which wheel you're actually displaying before I delared a miracle. Also make sure your old one isn't near the car.
Thread Starter
Instructor
Joined: Mar 2014
Posts: 205
Likes: 0
From: Alpine TX
Before I took the tire in, the RR was reading XX. After it reads 32 psi. I was on the highway when checking it, and the old one was on my workbench. I don't get it.
Team Owner
Joined: Jul 2006
Posts: 22,109
Likes: 4,137
From: Kannapolis NC
Only a couple of choices. It's not reading the correct tire, or someone programmed it. Maybe they did it when you weren't looking. Let some air out or put some extra in, see if that tire responds on the display
Thread Starter
Instructor
Joined: Mar 2014
Posts: 205
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From: Alpine TX
They handed me the new one in a box, I looked at it and handed it to the tech. He installed it, and handed me the old one back. The tech is a friend of mine (small town). He installed it.
Soon as I put the wheel back on, the DIC started reading the pressure correctly. You are right though. No sense guessing here. Time to reprogram them. It does baffle me though. Out of curiosity I think I will play with the air pressure as suggested. It's bugging me now.
Soon as I put the wheel back on, the DIC started reading the pressure correctly. You are right though. No sense guessing here. Time to reprogram them. It does baffle me though. Out of curiosity I think I will play with the air pressure as suggested. It's bugging me now.
Thread Starter
Instructor
Joined: Mar 2014
Posts: 205
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From: Alpine TX
Bingo. I took them only the tire. The car was on my lift inside my garage the whole time. The owner of the tire store told me to bring the car in anytime, and he would reprogram it for me for free.
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
If you have the old sensor they gave you back, you might try checking the date code on it to see if it matches what should have been on your car. The date code is molded into the plastic. It is sort of a wheel with an arrow pointing to the month. The year is a molded in 2 digits that are one on each side of the arrow.
Hard to tell, but like 8VETTE7 suggested, program all of them and see what you have.
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Team Owner
Joined: Jul 2006
Posts: 22,109
Likes: 4,137
From: Kannapolis NC
How could the TPMS have been programmed??
If I understand the first post the OP took the wheel and tire to the shop and NOT the entire car. You need the car to be able to program the TPMS.
Before getting wrapped up in trying to explain what is happening, I would program all the TPMS and then see what you are dealing with. Anyones guess whether the TPMS on the car were programmed correctly or moved from the position they were programmed in.
C5 Corvette TPMS Reset - CorvetteOnline.com - YouTube
If I understand the first post the OP took the wheel and tire to the shop and NOT the entire car. You need the car to be able to program the TPMS.
Before getting wrapped up in trying to explain what is happening, I would program all the TPMS and then see what you are dealing with. Anyones guess whether the TPMS on the car were programmed correctly or moved from the position they were programmed in.
C5 Corvette TPMS Reset - CorvetteOnline.com - YouTube
AND, he still has one that doesn't work. I'd change that one and then reprogram in the correct order.
Thread Starter
Instructor
Joined: Mar 2014
Posts: 205
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From: Alpine TX
Update: Not all may be as seems. I went out and started the car and set the display to the rear tires. The left side shows XXX the right side shows 30 psi.
I let air out of the right side until my gauge showed 27psi. The display never changed. I went to the left rear tire, and same thing. No change.
I'm going to have to reprogram them as suggested.
I let air out of the right side until my gauge showed 27psi. The display never changed. I went to the left rear tire, and same thing. No change.
I'm going to have to reprogram them as suggested.