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Post by asalah on Apr 29, 2020 19:27:26 GMT
I was doing some coding on my car, everything went well, but later on I found that in my vehicle settings, the tyre pressure monitoring system says the function is currently not available, any idea what went wrong during coding ? How to solve that ? Much appreciated !
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Post by dv52 (Australia) on Apr 29, 2020 22:12:23 GMT
asalah: hmm......... difficult to be precise given the lack of information in your post - at least tell us what type of car this is! Anyhow, never mind - the best way (I think) to deal with your issue is to go to the history function in the OBD11 software. This facility records ALL of the changes that you have made with your device including BEFORE and after values. Look through the entries and identify those changes that relate to the tire-pressure system- then revert the settings to the original value I find it easier to email myself a digital copy of the History report if you have made lots of changes (it's easier to read on a PC/laptop - rather than on a mobile-phone/tablet). Here's instructions how to digitize the History records: Don
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Post by asalah on Apr 29, 2020 22:53:16 GMT
i'm sorry, will fill you in.
the car is a seat ibiza KJ.
the list of things are did are - not in order though-
1. cornering fog lights 2. parking pilot screen 3. needle sweep 4. locking car with ignition on 5. closing windows with one click 6. horn sound with locking/unlocking 7. the ac boost thing 8. throttle response. 9. XDS differential
i found that screen after doing only these today:
7. the ac boost thing 2. parking pilot screen 5. closing windows with one click 7. the ac boost thing 9. XDS differential
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Post by dv52 (Australia) on Apr 30, 2020 0:27:20 GMT
hmm........ so - did you make those changes manually, or did you use APPs?
I'm not sure what "i found that screen after doing only these today" means. But your ibiza has an MQB platform build which likely means that the Tire Pressure Monitoring System (TPMS) doesn't use actual pressure sensors on each of the wheels. Does your car have a pressure transducer screwed into the valve-stem on each wheel?
If not, it's likely that TPMS in your car uses speed-pulses from each wheel to measure the rolling diameter of individual wheels: the calculated radius of each wheel approximates the pressure in each wheel so when there is a difference in the rolling speed of a wheel compared to the other wheels, the TPMS triggers an alarm.
These speed-pulses from each wheel that TPMS uses are generated via the Brake module (@ address hex03 on the CAN network). The only mod that I can see on your list that might impact the Brake module is XDS differential. I'm totally guessing - but perhaps this mod is your problem - maybe?
Don
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Post by asalah on Apr 30, 2020 1:22:37 GMT
Yes as you said it doesn’t have pressure sensors, I thought about this too actually since the XDS would actually vary the speeds of wheels in cornering, hence affecting the function of the tpms, I will give it a try and I form you ! Thanks.
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