2009 v8 vantage convertible - tyre pressure fault

[Tom_GGG]

Ive got an error with the tyre pressure system on a 2009 v8 vantage convertible

Basically the fault light on the dash is on allot. Sometimes in the summer it goes off, but then on again when it rains.

How can i fix this

[BiggaJ]

Probably not the answer you want to hear however, my solution was to buy the small bypass wiring from Aston Installations (approx. £25) and then stop worrying about it. This disables the system but stops the car throwing any error codes. Worked perfectly for two years. I check tyre pressures regularly as I would with any of our cars with or without tyre pressure monitoring.

The valves in each wheel will probably need replacing as you can't remove/replace the batteries meaning if you really want this feature you will no doubt have to lay out several hundred on replacement units and the have the cost of fitting them.

Edited by BiggaJ on Monday 26th December 19:40

[Dewi 2]

My Vantage is the same year as yours and the TPMS produced a constant error warning last year.
I presume it must be battery failure.
Expect you know that pressing the Read button removes the message, but the error light will remain on.

I am a frequent checker of tyre pressures, so am going to have the system disabled.

Note that for MoTs, 2009 cars are not legally required to have TPMS, so if you have TPMS advisories that is wrong.

The TPMS system battery problem can be sorted at a reasonable cost. You need to search for the topic (there might be a link in the FAQs topic on the AM front page). An AM PHer discovered how to deal with this problem and posted a very detailed explanation.

[mrpseudonym]

Normal for a 2009 car. Sensors have a finite life. When the batteries in the sensors are reaching their end of life they start playing up when it is cold (sensor battery voltage drops)

As has been said above, there are *lots* of links here on PH to help you. https://www.pistonheads.com/gassing/topic.asp?h=0&...

Its a satisfying and cost effective DIY job to replace with new sensors for another decade of tyre pressure monitoring. *But* much easier to do when sensors are still working, so get onto it ..

Edited by mrpseudonym on Tuesday 27th December 18:33

Edited by mrpseudonym on Tuesday 27th December 18:34

[Greathey]

BiggaJ said:

Probably not the answer you want to hear however, my solution was to buy the small bypass wiring from Aston Installations (approx. £25) and then stop worrying about it. This disables the system but stops the car throwing any error codes. Worked perfectly for two years. I check tyre pressures regularly as I would with any of our cars with or without tyre pressure monitoring.

The valves in each wheel will probably need replacing as you can't remove/replace the batteries meaning if you really want this feature you will no doubt have to lay out several hundred on replacement units and the have the cost of fitting them.

Edited by BiggaJ on Monday 26th December 19:40

Yup I did that too

TPMS can be a headache

[EVR]

The TPMS system giving an error even if the pressure is actually picked up in all four corners is, I believe, its way of telling you the batteries are running out. Normal after 5-7 years.

Check these threads of mine, you will find all the info:

https://www.pistonheads.com/gassing/topic.asp?h=0&...

https://www.pistonheads.com/gassing/topic.asp?h=0&...