2006 C6 TPM Issue
12-07-2016, 08:00 AM
#1
Racer
Thread Starter
2006 C6 TPM Issue
I've read most of the post concerning TPMS and reset however my issue is different. While driving to work this morning 44 Degrees all was well and then I got the tire pressure light and LR tire flat. Warning to keep speed below 55. The DTC then showed zero pressure in the LR and 31 in the RR. Warning of a LR flat kept coming on. I stopped and checked the pressure and had 30 psi in the tire and not XX like most post indicated. So my question is did my sensor lose connection or is the battery bad? I have not restarted the car since it stopped but you can tell the car thinks it has a flat and performance is degraded. Time for new TPM or just a reset? Thanks.
12-07-2016, 08:15 AM
#2
Le Mans Master
I've read most of the post concerning TPMS and reset however my issue is different. While driving to work this morning 44 Degrees all was well and then I got the tire pressure light and LR tire flat. Warning to keep speed below 55. The DTC then showed zero pressure in the LR and 31 in the RR. Warning of a LR flat kept coming on. I stopped and checked the pressure and had 30 psi in the tire and not XX like most post indicated. So my question is did my sensor lose connection or is the battery bad? I have not restarted the car since it stopped but you can tell the car thinks it has a flat and performance is degraded. Time for new TPM or just a reset? Thanks.
12-07-2016, 02:06 PM
#3
Team Owner
I would agree but would also caution that you should manually check the pressure in all four tires to make sure that the questionable sensor is not registering a different tire being low.
Many here on the forum have replaced TPMS sensors just as unnecessary maintenance but if these are original from 2006, then this is likely the beginning of all the batteries dying.
Many here on the forum have replaced TPMS sensors just as unnecessary maintenance but if these are original from 2006, then this is likely the beginning of all the batteries dying.
Last edited by cclive; 12-07-2016 at 02:08 PM.
12-07-2016, 03:40 PM
#4
Race Director
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C6 of Year Finalist (performance mods) 2019
Assuming all the other tires have a reasonable pressure as cclive suggested, just drive the car. After a few (usually 3) ignition cycles a fluke reading will reset itself. My OEM '08 sensors have traveled 130K miles and started the LR syndrome about 50K ago.
LR is the last one in the sequence to be pinged and respond. If any glitch happens between the LF ping and the LR response, either a 0 pressure or XX will appear as the LR on the DIC. A 0 pressure happens when the response didn't clearly indicate a pressure, while a XX happens when the sequence was incomplete. If you have a tire going flat, a warning will show up at 24 PSI and lower. It won't register 0 pressure as the first indication unless you had a flat while parked or you had a blowout and you don't need a TPS to tell you that happened.
Glitches can happen for many reasons. Just simply being near a bad electrical transformer, malfunctioning fluorescent lights, or other RF source during the check sequence is enough to cause the issue. Low battery power in any sensor contributes to the occasional glitches. When the glitches start to happen real often or they never reset, then it's time for new sensors.
LR is the last one in the sequence to be pinged and respond. If any glitch happens between the LF ping and the LR response, either a 0 pressure or XX will appear as the LR on the DIC. A 0 pressure happens when the response didn't clearly indicate a pressure, while a XX happens when the sequence was incomplete. If you have a tire going flat, a warning will show up at 24 PSI and lower. It won't register 0 pressure as the first indication unless you had a flat while parked or you had a blowout and you don't need a TPS to tell you that happened.
Glitches can happen for many reasons. Just simply being near a bad electrical transformer, malfunctioning fluorescent lights, or other RF source during the check sequence is enough to cause the issue. Low battery power in any sensor contributes to the occasional glitches. When the glitches start to happen real often or they never reset, then it's time for new sensors.