der451b

Hello all,
My 2003 C5 AE 50th has low tire warning message as follow :

-Low tire pressure RR.
-Low tire pressure LF.
-Low tire pressure RF.
C5 gauge display L 24 PSI, R 24 PSI.
Car in my garage , weather mid day temperature 72 degree F.
I refill air to four tires, Compressor air gauge display 30 PSI, check with another handheld gauge shows 30 PSI. There are 6 PSI different between C5 gauge and both external air gauge.

How do I clear or relearn the tire pressure sensor?
Thanks

DeeGee

Tire Pressure Monitoring Sensor Programming

The Tire Pressure Monitor (TPM) system interfaces with the Instrument Panel Cluster (IPC) through the serial data line. Once the program mode is accessed through the IPC, each sensor's unique identification code can be programmed into the receiver's memory. Each sensor must transmit the unique code in the proper sequence. A magnet must be held close to the sensor in order to force the sensor to transmit the identification code. The IPC will display a message as each sensor is programmed, and when to proceed to the next sensor for programming. The receiver also sends a message to the BCM to sound the horn one time, indicating that the sensor properly transmitted an identification code. If the programming sequence is cancelled before any sensor is programmed, or if the vehicle's battery is disconnected, the receiver will remember all current identification codes. As soon as the receiver learns the first sensor identification code, all previously stored codes are erased from the receiver's memory.
J 41760 Tire Pressure Monitor (TPM) Programming Tool.
Tool required (any medium strength magnet, U or Disk type
1. Turn the ignition to ON.
2. Press the RESET button in order to clear any IPC display warning messages.
3. Press and release the OPTIONS button on the DIC to scroll through the display options until the IPC display is blank.
4. Press and hold the DIC RESET button for 3 seconds.
Notice: Refer to Body Control Module (BCM) Programming/RPO Configuration in Cautions and Notices.
5. Press the OPTIONS button again until the TIRE TRAINING message appears.
6. Press the RESET button until the IPC LEARN L FRONT TIRE message appears in order to begin
the programming sequence.
7. Install the J 41760 Tire Pressure Programming Tool over the left front valve stem.
8. The horn will sound, indicating the left front TPM sensor is programmed.
9. When the horn sounds, proceed to program the next TPM sensor in the following order as directed
by the IPC messages:
- LEARN R FRONT TIRE
- LEARN R REAR TIRE
- LEARN L REAR TIRE
Programming Cancellation
1. The programming mode will be cancelled if any of the following conditions are met: - The program mode is exited through the DIC.
- The ignition is turned to OFF.
- All four sensors have been programmed.
- The TPM system has been in the program mode for longer than 2 minutes and no sensors
have been learned.
2. If the program mode is cancelled with less than four codes stored, the receiver will only accept the codes programmed up to that point

der451b

Thank you .
I have to destroy one speaker to get magnet ....

ALLEGRO

Before you go and re-learn the sensors, drive the car for a few miles to get everything back in communicating order.

If you do have to re-learn, the magnets from a hard-drive work VERY well.

Good Luck

der451b

Thank to all ,
Got a magnet from an old speaker, do as your sugested, all sensor learned with L, R ( front and Rear)with Horn sounded.
However , each sensor has some air reading tolerances . With all tires confirmed with handheld air gauge 30 PSI all four tires. But C5 gauge given LF 30 PSI, RF 29 PSI----RR 29 PSI, RL 28 PSI .....

But I can live with it.

Vetteman Jack

To update the pressure readings, the car has to be in motion. Try taking it around the block (get up past 15 mph) and then check what the reading is. If that doesn't get it reset, then do the reprogramming and drive it again.

der451b

I will do it tomorrow morning. All reprogramming recently done it inside my gagare. That could be different. Thanks.

9secondflat

my car is doing the same thing where do you get one of these???

Install the J 41760 Tire Pressure Programming Tool over the left front valve stem

mrm1149

They sometimes start getting squirrelly as the battery voltage in the sensors is fading........

ljthe2nd

You can buy them on ebay occasionally, and sometimes you can find them in the parts for sale forum, but all it is, is a magnet with a hole in it, but you can use and magnet. Just hold it up to the sensor.