Learn Mode Description: Notes

The tire pressure monitor (TPM) system uses the passenger door module (PDM), body control module (BCM), exterior lamp switch, 4 radio frequency transmitting pressure sensors, and the serial data circuit to perform the sensor learn mode functions. The sensor learn procedure must be performed any time the PDM is replaced, a sensor is replaced, or after the vehicles tires have been rotated. Once the learn mode has been enabled each of the sensors unique identification codes can be learned into the PDMs memory. When a sensor's ID code has been learned, the PDM sends a serial data message to the BCM to sound a horn chirp. This verifies the sensor has transmitted it's ID code and the PDM has received it. As soon as the fist sensor ID code is learned, all other IDs are erased from the PDMs memory.