Tyre Pressure warning light not going out

[Greeno]

OK folks, any ideas on this one...

The pressure warning light flicked on. I had a puncture about 18 months ago and it has started to fail so i know which one was causing it to ping. check the pressure on all of them anyway.

Now when i try and reset the light i get the amber then it doesnt extinguish, it goes red again.

All i can think of is a faulty sensor but i am not entirely sure how these things work.

Any ideas anyone?

 

[Half Colin]

There are no sensors in the European Zeds. The system works from the ABS and monitors the difference in rotation between wheels on the same 'axle'. A loss in pressure causes the wheel to rotate at a different speed from the other one. Are you driving the car after you press the button? The system can only reset as the wheels are rotating.

 

[dmo]

as said above. you need to fix the problem then drive around a bit for it to calibrate. then press the button and it should go away if all checks out.