TPMS issue and replacement
#1
Track Day
Thread Starter
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When I start the car I get a flat tire warning and it shows my rear tires at -10. When I go to the TPM screen, it shows all four tires at good pressure. The warning lights stay on, even though it shows good pressure. Is this a sign that my TPMS batteries are about to die?
If I need replacements, are the aftermarket sets on eBay (HUF 433mHz) worth the huge price difference from OEM?
thanks.
If I need replacements, are the aftermarket sets on eBay (HUF 433mHz) worth the huge price difference from OEM?
thanks.
#2
Rennlist Member
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Have you tried resetting the sensors using the OBC? Also, set the dash display to show absolute pressure (rather than +10) and use a manual tire pressure gauge to see if the readings are close. If you have a Durametric cable, you can read months remaining on each battery.
>If I need replacements, are the aftermarket sets on eBay (HUF 433mHz) worth the huge price difference from OEM?
I know what you mean, but you asked that backwards. The OEM units are not worth the huge price difference. Aftermarket units from HUF or BERU will work fine. OEWheels is a popular supplier of these.
>If I need replacements, are the aftermarket sets on eBay (HUF 433mHz) worth the huge price difference from OEM?
I know what you mean, but you asked that backwards. The OEM units are not worth the huge price difference. Aftermarket units from HUF or BERU will work fine. OEWheels is a popular supplier of these.
#3
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Mine acted in a similar manner after a recent oil/service reset. Reset the TPMS from the column lever several times over a 5 day period. It finally corrected itself. No confidence in this system though.
#4
AutoX
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Hi, try checking under TPM > Load, and check if it is at Full Load. If so, it expects 40+ pressure. I had a similar problem. Corrected to Partial Load and the warning turns off immediately. Mine is set to 33F/37R.
#7
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My Icarsoft Por II indicates 79 months battery life remaining on all 4 so I ruled out battery issues. Installed brand new 4 months ago.
Partial vs full load setting is worth looking at. Also heard shuffling between the two might help. I was minutes from coding off the whole thing when mine started working again. It new I was getting ready to drop kick and decided to behave...
Partial vs full load setting is worth looking at. Also heard shuffling between the two might help. I was minutes from coding off the whole thing when mine started working again. It new I was getting ready to drop kick and decided to behave...
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#8
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I agree with Crunch Time- I had a similar readout- corrected to partial load and voila! Everything works great.
I DID replace the Sensors with the OE ones- they work perfect- but check your year and model for the right frequency- my 997.1 uses the 433mhz band I believe.
I DID replace the Sensors with the OE ones- they work perfect- but check your year and model for the right frequency- my 997.1 uses the 433mhz band I believe.