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2011 V8V N420 - Tire System Fault after vehicle battery replacement
Did many searches various forums..... no luck finding my particular issue discussed.
Vehicle battery died in my 2011 V8V. After replacing it I have "Tire System Fault" in the info display, and the yellow tire icon lit up constantly. Put 332 miles on the car since the battery replacement and it will not reset. I'm getting pressure readings from all 4 tires, so it appears the system is working. The fault message and yellow tire icon just won't go away. Resetting a TPMS fault is not addressed in the owners manual. The car has 8,643 miles on it.
I've seen posts addressing issues with the Smart Tire system, but my car has the newer system.
Any ideas, or am I looking at a trip to the dealer to have it cleared? Appreciate any insight.
A low battery in a tire sensor will set the fault even before it completely dies and stops sending pressure readings.
If you have access to a code reader that speaks Aston Martin you can read out the sensor battery percentages and know which one is causing your fault. But if those are the original sensors from 2011 they are probably all close to done.
8 year battery life on sensors, they can read pressure but are about to die completely. New set of 4 sensors in the aftermarket world are less than $200 + install. Do a forum search for part number. Or TPMS(.)com. The 2010 my up are self learning with the exception of V12 Vantage.
Agree with the other replies. Had the same issue on my 2011 and I replaced them with the sensors below. They are self learning and it was an easy fix thankfully.
Thank you all for the info on the TMPS sensors. I will certainly keep them in mind if I suspect the sensors are the problem.
To be clear however, I'm referring to the vehicle main battery itself behind the passenger seat as the one I replaced. Might seem obvious, but I discovered the battery had died one day when I went to start it. Starter would not engage, and the instruments went nuts with all sorts of flashing, clicking, etc. (The car is always on a battery tender when not driven.) After putting in the new battery, everything is fine, the car runs and drives fine, except the tire system fault message and yellow tire icon are still showing. All the other indications have cleared. The TPMS was working fine before the battery went dead, so I must assume the condition I'm seeing now is directly related to the battery failure/replacement. Could be a coincidence that one or more of the sensor batteries are failing as well, but I'd like to rule out the possibility that it is not.
Thanks again for your input.
If you want to positively confirm the fault, you will need a capable code reader.
But agree with JW, given the evidence of an error but 4 pressure readings, 99% it is a sensor with a low battery. If you don’t know they have been replaced, they most likely have not been.
I'm fortunate enough to have a 2007 model and can and did disconnect the darn TPMS system completely and permanently. If I'm not mistaken there exists some kind of thing-a-ma-jig people can buy that disconnects it on some later models too, even though simply unplugging it like I did, supposedly doesn't work after the 2007 MY, IIRC.
BTW, I understand the OP's reluctance to accept the suggestion (if I understand it correctly) that the battery change and the TPMS troubles are a coincidence.
Hard to argue with 100%. As I watch the readings come in on the info display, I do indeed see that the left front is the slowest (by far) and last to report in with a pressure number. So perhaps that one is the culprit. However given that they are all the original sensors, I'll proceed down the path of replacing them, and assume this condition coinciding with replacement of the battery is unrelated. I'll be picking up a scanner too.
Thanks all for the input and links to the sensors. As a noob to this forum, I really appreciate all the responses. Cheers boys!
As I watch the readings come in on the info display, I do indeed see that the left front is the slowest (by far) and last to report in with a pressure number. So perhaps that one is the culprit. However given that they are all the original sensors, I'll proceed down the path of replacing them, and assume this condition coinciding with replacement of the battery is unrelated. I'll be picking up a scanner too.
