Hello, my skoda octavia Iv 2020 1.0 Etec have had prblem with tpms recently. It was saying that I had a loss in rear left tyre pressure.

I had the right pressures and everything but it didn't fix so I checked the speed values of every wheel while driving and the left rear wheel was about right, but the value went to 0 time to time.

Well this week I was driving and there comes 15 diffrent lights to the dash and I tought it was a broken abs sensor (codes was about abs) and I replaced the sensor but now it only shows 0.64kmh on the left rear wheel and it doesn't matter if I'm driving or not.

So its probably bad wiring but does anyone know whitch pins are for the rear left abs sensor? I would like to check the wiring with multimeter but dont know witch pins are for it.

I checked the voltage on the left rear abs sensor plug and it was 11volts.

You have probably misdiagnosed the issue. The Octavia mk4 has know issue with ABS sensor rings disintegrating on the rear wheel hubs. So check the integrity of the ABS ring.

15 minutes ago, 386ka said:

You have probably misdiagnosed the issue. The Octavia mk4 has know issue with ABS sensor rings disintegrating on the rear wheel hubs. So check the integrity of the ABS ring.

Could this cause the speed being 0,64kmh no matter if im driving or still?

I'd say the quoted symptom points me to the direction that the sensor ring was damaged.

On 29/05/2026 at 16:36, Joni5629 said:

I had the right pressures and everything but it didn't fix so I checked the speed values of every wheel while driving and the left rear wheel was about right, but the value went to 0 time to time.

I'd check the sensor ring. If it's damaged, I'd stick the old ABS sensor back and replace the hub.

If the ring is fine, then the problem is obviously somewhere else.

57 minutes ago, 386ka said:

I'd say the quoted symptom points me to the direction that the sensor ring was damaged.

I'd check the sensor ring. If it's damaged, I'd stick the old ABS sensor back and replace the hub.

If the ring is fine, then the problem is obviously somewhere else.

I checked all the wiring and the sensor, all good.

After I plugged everything back to the car, everything was back to normal and there was no more errorcodes.

If the problem comes back, I eill change the ring👍