Fitted Kona wheels, tpms problems

kingstevii

I put hyundai kona alloys from a 2019 Kona onto a 2016 i40 and now getting the yellow tpms indicator on the dashboard. It's also saying one of the tyres is running low but I've checked them a number of times and the pressures are correct. Is there any way of resetting the ecu to recognise the kona wheels?

Atlantic Dawn

You should be able to take the sensors out of the old wheels and put them on the new, that would be easiest way of doing it. What's happening now is car is searching for old TPMS coded wheels and not finding them so presenting the error.

kingstevii

Atlantic Dawn wrote: »

You should be able to take the sensors out of the old wheels and put them on the new, that would be easiest way of doing it. What's happening now is car is searching for old TPMS coded wheels and not finding them so presenting the error.

Thanks, is there no way of resetting the car to find the new sensors? Some pain and cost taking all the old sensors out and putting them in the new wheels!

Nigzcurran

kingstevii wrote: »

Thanks, is there no way of resetting the car to find the new sensors? Some pain and cost taking all the old sensors out and putting them in the new wheels!

I had the same problem on a 2016 focus and had to get them coded off the car with a diagnostic kit I bought off eBay

kingstevii

Nigzcurran wrote: »

I had the same problem on a 2016 focus and had to get them coded off the car with a diagnostic kit I bought off eBay

Which diagnostic kit? Cheers!

colm_mcm

Does the Kona even use the older type valve sensors?

kingstevii

colm_mcm wrote: »

Does the Kona even use the older type valve sensors?

The car display is saying the front left tyre is running low, so it must be reading something..

kingstevii

I also thought, seeing as the sensors are all hyundai that they'd be able to be picked up by system handy enough..

mk7r

The sensors can be read by the car but they need to be programmed using the proper gear, they dont just work, they have an ID. Some use the abs to measure difference in wheel speed to tell which tyre is low, not sensors in wheels, the car in that case also needs programming for diameter

e.g.
https://www.youtube.com/watch?v=NGel9rsw8bQ

kingstevii

mk7r wrote: »

The sensors can be read by the car but they need to be programmed using the proper gear, they dont just work, they have an ID. Some use the abs to measure difference in wheel speed to tell which tyre is low, not sensors in wheels, the car in that case also needs programming for diameter

e.g.
https://www.youtube.com/watch?v=NGel9rsw8bQ

Hi, thanks for that. Both the old and the new wheels have sensors in them, they've the fancy valve stems visible opposed to the plain rubber ones

Toyotafanboi

What pressure have you got in the tyres?

Hyundai sensors do not need to be coded, they will self learn when fitted.

Set the pressures to 38psi turn the ignition on, the TPMS light should be flashing, then drive, the TPMS light should change to solid (not flashing) it can take up to 10 minutes over 20km/h in extreme cases but should usually only take a few seconds.

If that doesn't work, i'd say it's just a coincidence and the N/S/F sensor is faulty. You could confirm that by swapping the front wheels left with right and see does the fault move with the wheel.

Nigzcurran

kingstevii wrote: »

Which diagnostic kit? Cheers!

It’s was Ford specific unfortunately so no use to you

kingstevii

Toyotafanboi wrote: »

What pressure have you got in the tyres?

Hyundai sensors do not need to be coded, they will self learn when fitted.

Set the pressures to 38psi turn the ignition on, the TPMS light should be flashing, then drive, the TPMS light should change to solid (not flashing) it can take up to 10 minutes over 20km/h in extreme cases but should usually only take a few seconds.

If that doesn't work, i'd say it's just a coincidence and the N/S/F sensor is faulty. You could confirm that by swapping the front wheels left with right and see does the fault move with the wheel.

The tpms light flashes then goes to solid after a couple of minutes . What does going to solid mean?

Toyotafanboi

Solid means the car see's the wrong pressures. It would stay flashing if it wasn't picking up a sensor.

Set all to 38 psi and drive it. If the light doesn't go out, swap the wheel somewhere else and see does the fault go with it.

kingstevii

Toyotafanboi wrote: »

Solid means the car see's the wrong pressures. It would stay flashing if it wasn't picking up a sensor.

Set all to 38 psi and drive it. If the light doesn't go out, swap the wheel somewhere else and see does the fault go with it.

Changed the wheels around last night, still giving the reading of low on the front left.

zg3409

kingstevii wrote: »

Changed the wheels around last night, still giving the reading of low on the front left.

You need to drive a good bit for it to relearn tyres swapped.
Driving, letting air out and watching display should identify which tyre its reading. I would pump all up very high, then let down and watch display. They go to sleep if not driven for a while .