TPMS problem

[ithommo Junior Member Find all posts View Profile Close ithommo]

I recently traded my 120 series (271000 Klms) on a second hand VX 150 series.
It has a genuine TPMS already fitted.
All was well until yesterday when the unit started beeping its head off! I pulled up and there was nothing obviously wrong with the tyre pressures. I took the vehicle to my tyre store who confirmed that all was well with the tyre equipment.
I have gone through the Receiver Actviation Procedure - still no satisfaction. Unfortunately I don't have the Owner's manual, only the Installation Instructions.

Any suggestions?

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

While I dont have a factory TPMS i would suspect low batteries in the sensors or receiver. What is the display showing? A tyre fault will show with a low pressure or high temperature but if there is no display that means no signal. Tried googling for the instructions or a dealer? Another thing to watch for is after a tyre rotation you need to make sure the system has relearned the new positions or if it is a cap system check these are correct. I had new tyres on the back of my car and one morning the L rear was low. Actually it was R rear and the left was fine. If you get a fault it pays to check all the tyres especially if like the Prado they are all the same size. As a final thought does the spare have a sensor and is it ok? Have you recently rotated the tyres including the spare?

[ithommo Junior Member Find all posts View Profile Close ithommo]

mjrandom,
Thanks for your reply - reckon the batteries are ok as the beeper works and the display is nice and clear. The tyres haven't been rotated. The spare has a sensor. The sensors are the type that fit inside the rim, so the bead has to be broken for fitting. Have tried Google for the instrustions - no joy!
As the car is still under new warranty, I have it booked in tomorrow at the local dealer - however they are not too hopefull of success. Will keep you posted!

[wooley Avid PP Poster! Find all posts View Profile Close wooley]

How long have you had the car? I assume this is the first time?

I wouldn't worry about it. I've had it happen a couple of times, it'd just be interference.

Beeps like crazy stop check to see nothing's wrong, restart car and all is usually good.

Only had it happen 2 times in 12months/90,000km so not too bad.

[ithommo Junior Member Find all posts View Profile Close ithommo]

Thanks wooley,
I've had the car about 2 weeks and all worked normally until 2 days ago when the beeping started.
As I said before everthing checked out OK with the tyres.
The beeping now starts every time I start the vehicle. The beeps can be turned off manually, however the warning light on the display keeps flashing!

[wooley Avid PP Poster! Find all posts View Profile Close wooley]

Ah ok. Perhaps the pressure or temp alarm has been adjusted.

Or it could just be a single faulty sensor.

[REV Find all posts View Profile Close REV]

I would go the way of a faulty sensor. I had one play up as in, I couldn't get it to be recognised when re learning the sensor id.

Took it to Toyota & booked it in for a service & for them to check the sensors. When I picked the prado up they told me it would have to be booked in again, for four of the five sensors to be replaced under warranty. So I ended up with the TPMS going off everytime I drove anywhere. Very frustrating.

ithommo, if you have no joy getting a copy of the user manual, pm me with an email or postal address as I could scan mine & email or post it to you.


Cheers
REV

[ntp Addicted PP Member Find all posts View Profile Close ntp]

ithommo - I'll send you a PM tonight or on Saturday with some extra info to assist you.

[ithommo Junior Member Find all posts View Profile Close ithommo]

Thanks Rev,
Have sent you a pm.

[ithommo Junior Member Find all posts View Profile Close ithommo]

Thanks ntp that would be much appreciated.

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

I had intermittent faulting of the internal sensors on my Clubbie. Back and forth to the doctor and all they did was do a system reset. The system would just go into meltdown and stop working. A few months ago on start-up I had the alarm showing the LF was not reading at all (and the associated bings and beeps). It did this a few times and then went back to normal. I had one spare sensor and when the front tyres were changed a little later I replaced that sensor and since then, touching cellulose laden head, all good. A simple system relearn to get the TPMS to accept the new sensor.

[ithommo Junior Member Find all posts View Profile Close ithommo]

Well everything is OK now.

Went to the local Toyota dealer today and it was just a matter of re calibrating the unit correctly.
Apparantely the unit had been calibrated to 30 psi tyre pressure and as I had inflated the tyres to 40 psi, that upset the unit!
It is now calibrated to 40 psi with a margin of error of +3 to -3 psi. We shall now see how it goes!
Many thanks to all who answered my problem with suggestions - all answers were greatfully received!.
Many thanks again.

[ithommo Junior Member Find all posts View Profile Close ithommo]

Sorry, I somehow double posted my last message- tried to delete it - haven't found out how yet!!

[ntp Addicted PP Member Find all posts View Profile Close ntp]

Good result.

[craigm Addicted PP Member Find all posts View Profile Close craigm]

So what's the go when you want to go off road and want to drop you're pressures? Is it a straight forward process to re calibrate for the days drive or is it a PITA ?


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