Tyre pressure sensor fault
Discussion
vxr2010 said:
Hi car is a 59 plate hsv Maloo , one sensor has stopped working , I live in Herts any idea where to go to find out which one , MF maybe able too but it's an expensive trip to find out if the kit they do have does work
Let them down one at a timeand if it makes no difference you found your Duffer
Have a pump ready to put em back to the right pressure tho
Or Is it just one light telling you one is 'allegedly' flat..?
If it's the VE series TPMS (from a 59 plate HSV Maloo I'm guessing it is) then you could try the TPMS relearn process. Just follow this process through until you find which wheel the car won't re-learn, then you know which sensor is faulty.
That said, if it we're me, I'd just have all 4 sensors replaced anyway. If one is failing then the others will be a similar age and will start to fail soon too as the batteries in them don't last for ever. Each sensor costs something like £25-ish from Walkinshaw:
How to get the HSV Tyre Pressure Monitor System (TPMS) to re-learn which sensor is on which wheel
Useful if you have two sets of wheels and need to swap them over, or if you have switched/replaced any of your tyre pressure sensors. I have successfully tested this on my E3 VXR8 GTS. I believe this also applies to the E2 and its Pontiac derivatives (information taken from a US Pontiac forum).
IMPORTANT: Before you begin ensure that you check the following:
- Ensure that you are you near an air-line or have some way of re-inflating your tyres. The process below involves significantly deflating all four tyres.
- Ensure that all four tyres are fully inflated before you begin (it doesn't matter what the tyre pressures are to start with, just so long as there is plenty of air in all four tyres)
- Ensure that the indicator stalk is in its centre (OFF) position and that the hazard lights are OFF. This process uses the indicator lamps and so they must not already be in use before you begin.
1) Remove the dust caps from all four wheels. You need to be quick later on else the learn process can time out.
2) Start with the ignition OFF. Then turn the ignition switch to ON with engine OFF.
3) Press and hold the key fob lock and unlock buttons at the same time. I found this bit awkward to get right the first time. If you've got it right, after about five seconds the horn will chirp two times. This signals that the car is now in TPMS learn mode and the car is ready to rediscover the pressure sensors on all four wheels.
4) Walk around the outside of the car and you should notice that one of the four corner indicator lamps is illuminated (but not flashing). This indicates which tyre pressure sensor the car is ready to learn.
5) Start to continuously deflate the tyre indicated. Continue to deflate the tyre until you hear the horn chirp. This will involve removing quite a lot of air from the tyre.
6) When the horn chirps, this indicates that the tyre pressure sensor in this tyre has been learned and matched to its hub. Stop deflating. DO NOT re-inflate just yet. All four tyres must be learned before re-inflating else you will confuse the process.
7) The illuminated corner indicator lamp will now have moved onto the next wheel to be learned. Repeat steps 4), 5) and 6) until all four tyres have been learned.
8) After the last tyre pressure sensor has been learned the horn should chirp twice to indicate that the sensor matching process is complete. The corner indicator lamps should also now all be off.
9) Turn the ignition switch OFF. The learn process is now complete.
10) Re-inflate all four tyres to the correct pressure and replace dust caps.
Notes:
- There is a time out for each tyre sensor to be learned by, so don't hang about while you're going through the above.
- If you do run out of time on one of the wheels, or if there is a problem with a sensor, you can stop the process and start over again by turning the ignition key to OFF. You'll need to re-inflate all the tyres again before you begin.
- Instead of deflating the tyres at step 5), you can apparently also do the reverse and inflate the tyres and the car will still be able to detect which sensor it needs to match to that hub. The problem with this however is that you don't know how long the car will take to learn the wheel and so you risk over inflating the tyre. Best to start with fully inflated tyres, deflate during step 5) and then re-inflate to the correct pressure once all four are learned.
For anyone with a Gen-F, the process has changed. I've just got it figured out having needed to do it recently so I'll get it written up separately.
That said, if it we're me, I'd just have all 4 sensors replaced anyway. If one is failing then the others will be a similar age and will start to fail soon too as the batteries in them don't last for ever. Each sensor costs something like £25-ish from Walkinshaw:
How to get the HSV Tyre Pressure Monitor System (TPMS) to re-learn which sensor is on which wheel
Useful if you have two sets of wheels and need to swap them over, or if you have switched/replaced any of your tyre pressure sensors. I have successfully tested this on my E3 VXR8 GTS. I believe this also applies to the E2 and its Pontiac derivatives (information taken from a US Pontiac forum).
IMPORTANT: Before you begin ensure that you check the following:
- Ensure that you are you near an air-line or have some way of re-inflating your tyres. The process below involves significantly deflating all four tyres.
- Ensure that all four tyres are fully inflated before you begin (it doesn't matter what the tyre pressures are to start with, just so long as there is plenty of air in all four tyres)
- Ensure that the indicator stalk is in its centre (OFF) position and that the hazard lights are OFF. This process uses the indicator lamps and so they must not already be in use before you begin.
1) Remove the dust caps from all four wheels. You need to be quick later on else the learn process can time out.
2) Start with the ignition OFF. Then turn the ignition switch to ON with engine OFF.
3) Press and hold the key fob lock and unlock buttons at the same time. I found this bit awkward to get right the first time. If you've got it right, after about five seconds the horn will chirp two times. This signals that the car is now in TPMS learn mode and the car is ready to rediscover the pressure sensors on all four wheels.
4) Walk around the outside of the car and you should notice that one of the four corner indicator lamps is illuminated (but not flashing). This indicates which tyre pressure sensor the car is ready to learn.
5) Start to continuously deflate the tyre indicated. Continue to deflate the tyre until you hear the horn chirp. This will involve removing quite a lot of air from the tyre.
6) When the horn chirps, this indicates that the tyre pressure sensor in this tyre has been learned and matched to its hub. Stop deflating. DO NOT re-inflate just yet. All four tyres must be learned before re-inflating else you will confuse the process.
7) The illuminated corner indicator lamp will now have moved onto the next wheel to be learned. Repeat steps 4), 5) and 6) until all four tyres have been learned.
8) After the last tyre pressure sensor has been learned the horn should chirp twice to indicate that the sensor matching process is complete. The corner indicator lamps should also now all be off.
9) Turn the ignition switch OFF. The learn process is now complete.
10) Re-inflate all four tyres to the correct pressure and replace dust caps.
Notes:
- There is a time out for each tyre sensor to be learned by, so don't hang about while you're going through the above.
- If you do run out of time on one of the wheels, or if there is a problem with a sensor, you can stop the process and start over again by turning the ignition key to OFF. You'll need to re-inflate all the tyres again before you begin.
- Instead of deflating the tyres at step 5), you can apparently also do the reverse and inflate the tyres and the car will still be able to detect which sensor it needs to match to that hub. The problem with this however is that you don't know how long the car will take to learn the wheel and so you risk over inflating the tyre. Best to start with fully inflated tyres, deflate during step 5) and then re-inflate to the correct pressure once all four are learned.
For anyone with a Gen-F, the process has changed. I've just got it figured out having needed to do it recently so I'll get it written up separately.
I had a sensor broken at a tyre shop , I repaired it and put it back in and it's been fine for months , and you are right it's very un helpful when the whole system shuts down , will it definitely work letting tyres down as currently it's not doing any thing at all , so I'm expecting the display to show nothing and me have four deflated tyres ?
I did find out there are two types or sensors a soft valve one and a metal valve one , the sensors are around 35 £ each from Walkinshaw but the problem is 35£ x 4 plus shipping then the cost of fitting them is around 15 to 20 per wheel so it adds up and I'm assuming it's a sensor as it won't tell me , I'm hoping it was broken sensor but I don't know
Does any one have efi or a reader that can read the tyre pressure sensors please as I'm not getting very far with Vauxhall or my local mechanic , I'm trying one last option tomorrow a garage I've used before , if it's a no go there I'm possibly a bit stuck , I live in Herts thanks in advance
vxr2010 said:
Just bumping this post again to see if any one can help please
Did you try the re-learn process above? Did this change the situation at all? If you managed to get the car to relearn one or more tyres but then it fails on subsequent tyres then this might point to the transmitter sensors in the wheels rather than the receiver in the car.Did the re-learn process even start? You'll see the message on the dash showing the process has begun and the front N/S indicator will remain solidly on (not blinking)
If you can post a picture of the dash then that might help us to understand a little better.
Hi i was expecting to end up with four flat tyres , I started the process the two fronts worked fine , the rear offside broken by the tyre place a few months ago is not learning , I have contacted Walkinshaw they sold there last two on Friday so they will contact me when they have more back in stock , cheers for the advice which I should have done earlier , I will probably order a pair and keep fingers crossed
vxr2010 said:
Hi i was expecting to end up with four flat tyres , I started the process the two fronts worked fine , the rear offside broken by the tyre place a few months ago is not learning , I have contacted Walkinshaw they sold there last two on Friday so they will contact me when they have more back in stock , cheers for the advice which I should have done earlier , I will probably order a pair and keep fingers crossed
At least you can now be fairly sure that the problem is with one of the wheel sensors rather than the car itself. Once you've had the new valve and sensors fitted you'll probably find that the learn process will complete and problem fixed.Might be worth choosing a different tyre fitter though
Hi it seems to be just a sensor , the learning process is quite easy , and I'm not impressed with the tyre place , I got them to write it on the invoice so maybe a bit of compensation due , cheers for your help , I was not expecting it to work as the display went dead which seems silly for one sensor not working
well it's finally sorted , thanks to Andy at MF for the part , to the door was 35£ , for the hsv ve 2 with 20 inch rims , there are a possible two types , one has a bear metal valve the other looks like a standard rubberised valve this has a blue sensor unit screwed to it , the one on mine was the rubberised one , the part number is GM 20922901 , and thanks to the above post , the sequence does work and is not difficult , when one sensor fails it turns off all the others , seems a bit silly , thought I would post for any ones future reference
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