what do these codes mean?
Burning Brakes
Joined: Mar 2005
Posts: 1,227
Likes: 15
St. Jude Donor '06
P1571 ASR Desired Torque
I believe this one is part of the torque management system. This is a pretty common code to pull especially in early C5s. Mine pulls this all the time but ive never seen it as a C (current) code. It is always an H (history) code for me. The system probably receives a voltage that is slightly high or low and then it sets the code. I don’t know the exact root cause but it shouldn’t hurt anything. Heres a website to check out.
http://www.gearchatter.com/viewpost1...56f05c74e70cc2
C2120 TPM System Malfunction (No Sensors Received)
This code refers to your TPM (tire pressure monitor) system. Coupe and converts come with a TPM sensor in each wheel that is energized via a small battery in each sensor. When the battery goes dead, the signal from each wheel to the car is lost, hence no sensors received. If you have aftermarket wheels, the sensors may not have been compatible, and hence were removed. Or if they were compatible, they somehow became unprogrammed with the car. You can do a TPM system relearn procedure but if the sensors are missing or all four have dead batteries, it is useless. The batteries are replaceable but it takes a lot of work because they were NOT designed to be replaceable. A new set is between 250-400 bucks for all four…
I believe this one is part of the torque management system. This is a pretty common code to pull especially in early C5s. Mine pulls this all the time but ive never seen it as a C (current) code. It is always an H (history) code for me. The system probably receives a voltage that is slightly high or low and then it sets the code. I don’t know the exact root cause but it shouldn’t hurt anything. Heres a website to check out.
http://www.gearchatter.com/viewpost1...56f05c74e70cc2
C2120 TPM System Malfunction (No Sensors Received)
This code refers to your TPM (tire pressure monitor) system. Coupe and converts come with a TPM sensor in each wheel that is energized via a small battery in each sensor. When the battery goes dead, the signal from each wheel to the car is lost, hence no sensors received. If you have aftermarket wheels, the sensors may not have been compatible, and hence were removed. Or if they were compatible, they somehow became unprogrammed with the car. You can do a TPM system relearn procedure but if the sensors are missing or all four have dead batteries, it is useless. The batteries are replaceable but it takes a lot of work because they were NOT designed to be replaceable. A new set is between 250-400 bucks for all four…
Last edited by Stealthy4; May 31, 2006 at 11:12 AM.
