Pls help with a tire pressure sensor problem...
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Joined: Sep 2005
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Pls help with a tire pressure sensor problem...
Hi, here goes:
When i changed the wheels on my car back to the stock polished ones i had bought 4 sensors to find that one was damaged when we came to installing them...
Anyway to get to the point my car has been running without the tire pressure sensors and my only problem was that whenever i started my car i had to put up with presing the reset button when the display brought up the "service tire pressure sensors" (or something similar), So big deal...
THE PROBLEM IS, today after reconnectiong the battery (after meadling with the exhaust - this has nothing to do with the problem) the tires read 0 pressure. It used to say XXX pressure. This makes the active handling impossible to disengage (as the manual says) and now i cant even get the competitive mode. HOW CAN I FIX THIS???
Now when i try to slide it feels like somones cutting my legs off
I have no GM dealers in my country (CYPRUS) and my LS2EDIT cant deal with problems for the body of the car.
PLSPLSPLS help
Takis
When i changed the wheels on my car back to the stock polished ones i had bought 4 sensors to find that one was damaged when we came to installing them...
Anyway to get to the point my car has been running without the tire pressure sensors and my only problem was that whenever i started my car i had to put up with presing the reset button when the display brought up the "service tire pressure sensors" (or something similar), So big deal...
THE PROBLEM IS, today after reconnectiong the battery (after meadling with the exhaust - this has nothing to do with the problem) the tires read 0 pressure. It used to say XXX pressure. This makes the active handling impossible to disengage (as the manual says) and now i cant even get the competitive mode. HOW CAN I FIX THIS???
Now when i try to slide it feels like somones cutting my legs off
I have no GM dealers in my country (CYPRUS) and my LS2EDIT cant deal with problems for the body of the car.
PLSPLSPLS help
Takis
Drifting
Joined: Jan 2005
Posts: 1,454
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From: San Antonio Texas
Originally Posted by cerino2000
Drive the car for a little bit and see if they start reading again.
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Originally Posted by SA HEAT
If this doesn't work, you're probably going to need to get a reset tool and reset the sensors.... you might try the Bartec website.
Ok, but i have no sensors on the car, and anyway it was working fine before. The XXX psi reading was fine for me. I just dont understand how it gets the 0psi reading as there are no sensors. Hmmm what to do, what to do???
Thanks
Drifting
Joined: Jan 2005
Posts: 1,454
Likes: 4
From: San Antonio Texas
Originally Posted by tak
Ok, but i have no sensors on the car, and anyway it was working fine before. The XXX psi reading was fine for me. I just dont understand how it gets the 0psi reading as there are no sensors. Hmmm what to do, what to do???
Thanks
Thanks
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Originally Posted by SA HEAT
Ok, I get it now..... you would probably need someone to hook up to your computer to try a reset (which may only be temporary) or put sensors in the wheels and start over.
Melting Slicks
Joined: Nov 2003
Posts: 2,312
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From: Ridgeland MS
St. Jude Donor '06-'07-'08-'09-'10-'11
Here goes - You will have to go to Bartec to get a Sensor Programming tool. I paid $200 as a forum member about a year ago. It looks like a garage door opener. Now take one of your old wheels that still has a sensor in it and place it by the left front tire. Hold down the Lock and Unlock on your fob until it goes into learn mode on the DIC. Hold the bartec tool by the sensor and press the button until the horn chirps. Move the tire and tool to the right front and hold the button on the tool until the horn chirps. Repeat on the Right Rear and Left Rear. All are now re-programmed until the battery is disconnected.
Good Luck
Good Luck
Drifting
Joined: Jan 2005
Posts: 1,454
Likes: 4
From: San Antonio Texas
Originally Posted by tak
So where would i get the ECM reset? theres no GM dealership in Cyprus (europe, mediteranean sea)
..... I think dollarbill has a good idea that just might work for you.
Last edited by SA HEAT; Jan 20, 2006 at 08:46 PM.
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Le Mans Master
Joined: Dec 2003
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From: NC
If bartec will sell you one, get one from them. The $200 tool no longer is sold by them. The new one is like $350. A few people have mentioned a $99 tool from somewhere in another thread but I don't remember reading whether or not it would work with the C6.
Race Director
Joined: Oct 2004
Posts: 10,089
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Originally Posted by tak
So where would i get the ECM reset? theres no GM dealership in Cyprus (europe, mediteranean sea)
Trying to fool the RCDLR with a training sequence using the same tire won't work. The RCDLR expects each TPM to have a unique code and will raise an error condition if it sees the same code from two different locations on the car. Note also that the TPMs have a switch which is only activated when the tire is rotating at greater than 16 MPH. This allows the TPM to start reporting pressures to the RCDLR. So simply carrying a set of TPMs in the car won't work either. You actually need a working set of TPMs installed in the wheels and properly trained with the RCDLR in order to clear the codes.
Drifting
Joined: Jan 2005
Posts: 1,454
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From: San Antonio Texas
Originally Posted by cerino2000
If bartec will sell you one, get one from them. The $200 tool no longer is sold by them. The new one is like $350. A few people have mentioned a $99 tool from somewhere in another thread but I don't remember reading whether or not it would work with the C6.
Drifting
Joined: Jan 2005
Posts: 1,454
Likes: 4
From: San Antonio Texas
Originally Posted by shopdog
You can't "reset" the ECM, and it wouldn't help if you could. The RCDLR is the controlling module for tire pressure related issues. This module issues messages over the car's Class II bus to the BCM and ICM. The ICM displays the appropriate readings on the DIC, ie high pressure warning, low pressure warning, flat tire reduced handling warning, and pressure monitoring system malfunction (XXX) warning. In case of a flat tire warning, the BCM sends a message over the GMLAN to the ECM to reduce engine performance. But this isn't persistent. As soon as the RCDLR reports normal pressure, the BCM quits telling the ECM to reduce power.
Trying to fool the RCDLR with a training sequence using the same tire won't work. The RCDLR expects each TPM to have a unique code and will raise an error condition if it sees the same code from two different locations on the car. Note also that the TPMs have a switch which is only activated when the tire is rotating at greater than 16 MPH. This allows the TPM to start reporting pressures to the RCDLR. So simply carrying a set of TPMs in the car won't work either. You actually need a working set of TPMs installed in the wheels and properly trained with the RCDLR in order to clear the codes.
Trying to fool the RCDLR with a training sequence using the same tire won't work. The RCDLR expects each TPM to have a unique code and will raise an error condition if it sees the same code from two different locations on the car. Note also that the TPMs have a switch which is only activated when the tire is rotating at greater than 16 MPH. This allows the TPM to start reporting pressures to the RCDLR. So simply carrying a set of TPMs in the car won't work either. You actually need a working set of TPMs installed in the wheels and properly trained with the RCDLR in order to clear the codes.
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Good News :) :) :)
GOOD NEWS!!!
I read somewhere in the FAQ about some people with early 2005 models that had the same problem, and while going on a hundred mile trip, at about 70 Miles in the trip the display read service tire monitor...
Well this is what i did today, and know what? IT WORKED!!! Active handling can be turned off!!!
The tire pressure reads xxxpsi and everything is perfect again. So what if i have to press the reset button once when im getting into the car? i have to press the traction control button for 5 secs anyway to get rid of the AH...
Thanks for all the advice though!!! This forum is great. Learned so much about the vette. Huge help!
cheers
I read somewhere in the FAQ about some people with early 2005 models that had the same problem, and while going on a hundred mile trip, at about 70 Miles in the trip the display read service tire monitor...
Well this is what i did today, and know what? IT WORKED!!! Active handling can be turned off!!!
The tire pressure reads xxxpsi and everything is perfect again. So what if i have to press the reset button once when im getting into the car? i have to press the traction control button for 5 secs anyway to get rid of the AH...
Thanks for all the advice though!!! This forum is great. Learned so much about the vette. Huge help!
cheers
Race Director
Joined: Apr 2005
Posts: 11,138
Likes: 11
From: Fremont CA
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20
NCM Sinkhole Donor
Unless something has changed in the ones you have vs the older ones, you can use a strong magnet instead of that expensive tool
Pro
Joined: Nov 2004
Posts: 608
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From: Oregon
Manual page 3-61
Here is a quote from page 3-61 of the 05 C6 Owners Manual:
"SERVICE TIRE MONITOR: If this message comes on a part on the Tire Pressure Monitor (TPM) is not working properly. If you drive your vehicle while any of the four sensors are missing or inoperable, the warning will come on in about 60 minutes. (stuff deleted). If the warning comes on and stays on, there may be a problem with the TPM."
My experience with all the sensors missing was you get the message on the DIC and you could reset it and make it go away for another 60 minutes; it didn't stay on. I never noticed anything different while driving the car but I wasn't really throwing it through some corners; I am sure I had access to full power though. Others have said their car's AH intervenes sooner than normal. Others have said you can't select competition mode or turn AH off. I didn't test any of these to see how my car reacted since I have the Bartec tool to re-register the tire sensors and both my wheel sets have tire sensors now.
"SERVICE TIRE MONITOR: If this message comes on a part on the Tire Pressure Monitor (TPM) is not working properly. If you drive your vehicle while any of the four sensors are missing or inoperable, the warning will come on in about 60 minutes. (stuff deleted). If the warning comes on and stays on, there may be a problem with the TPM."
My experience with all the sensors missing was you get the message on the DIC and you could reset it and make it go away for another 60 minutes; it didn't stay on. I never noticed anything different while driving the car but I wasn't really throwing it through some corners; I am sure I had access to full power though. Others have said their car's AH intervenes sooner than normal. Others have said you can't select competition mode or turn AH off. I didn't test any of these to see how my car reacted since I have the Bartec tool to re-register the tire sensors and both my wheel sets have tire sensors now.
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Originally Posted by jmess
Here is a quote from page 3-61 of the 05 C6 Owners Manual:
"SERVICE TIRE MONITOR: If this message comes on a part on the Tire Pressure Monitor (TPM) is not working properly. If you drive your vehicle while any of the four sensors are missing or inoperable, the warning will come on in about 60 minutes. (stuff deleted). If the warning comes on and stays on, there may be a problem with the TPM."
My experience with all the sensors missing was you get the message on the DIC and you could reset it and make it go away for another 60 minutes; it didn't stay on. I never noticed anything different while driving the car but I wasn't really throwing it through some corners; I am sure I had access to full power though. Others have said their car's AH intervenes sooner than normal. Others have said you can't select competition mode or turn AH off. I didn't test any of these to see how my car reacted since I have the Bartec tool to re-register the tire sensors and both my wheel sets have tire sensors now.
"SERVICE TIRE MONITOR: If this message comes on a part on the Tire Pressure Monitor (TPM) is not working properly. If you drive your vehicle while any of the four sensors are missing or inoperable, the warning will come on in about 60 minutes. (stuff deleted). If the warning comes on and stays on, there may be a problem with the TPM."
My experience with all the sensors missing was you get the message on the DIC and you could reset it and make it go away for another 60 minutes; it didn't stay on. I never noticed anything different while driving the car but I wasn't really throwing it through some corners; I am sure I had access to full power though. Others have said their car's AH intervenes sooner than normal. Others have said you can't select competition mode or turn AH off. I didn't test any of these to see how my car reacted since I have the Bartec tool to re-register the tire sensors and both my wheel sets have tire sensors now.
Thanks for the help,
As i said, after driving 70 miles the message: service tire monitor, came back on, the 0psi reading changed to xxxxpsi, and the Acitve Handling could be removed again.
The sensors are now wrapped in lots of aluminum foil, and stowed far away from the car in a basement just in case they decide to start trasmitting again
When i had the problem and the display kept telling me that my tires had 0 Psi in, i didnt notice a decrease in accellaration but the active handling issue was pathetically irritating, i believe a little more than usual
Anyway all is good now, at no expense, thanks to everybody for their help, that FAQ is really something
