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OPERATION The tire pressure monitoring (TPM) module has a microprocessor controller that can monitor the trans- DRBIII t. There are three important values included in these transmissions. They are: • Why the transmission was sent, • From which sensor it came (LF, RF, LR, RR), and • Pressure to the two pressure thresholds (low pressure or crit- The TPM module performs diagnostic routines, stores diagnostic trouble codes and provides the 9LO TIRE9 message in the odometer. The TPM module also stores its own identification number, each of the four sensor/transmitter identifi- STANDARD PROCEDURE - TPM MODULE If a TPM module fails, or one or more tire pressure sensor/transmitters fail, after replacement, the TPM Refer to the following procedure to program the module for identification of one new or all tire pres- NOTE: The vehicle’s tires must not have been (1) Connect a DRBIII t scan tool to the vehicle’s diagnostic connector beneath the instrument panel, (2) Access the Chassis System using the DRBIII. sure Monitor, followed by Miscellaneous. (4) Select the appropriate function from the next screen displaying the following options: • Program LF Pressure Sensor • Program RF Pressure Sensor • Program RR Pressure Sensor • Program LR Pressure Sensor • Program Module (4 Sensors) • Monitor stem for that wheel as directed by the DRBIII. If the (6) When that wheels pressure sensor/transmitter has been programmed, the DRBIII will display Pro- NOTE: When programming the module (all four sen- (7) Remove the magnet and if programming the entire module, move the magnet to each of the (8) Once Program Transmitter Complete is dis- played, exit the program function screen. (9) Verify that the module programming is com- plete by looking at the tire pressure sensor/transmit- REMOVAL (1) Disconnect the battery negative terminal. gauge pack (Fig. 13). (Refer to 8 - ELECTRICAL/IN- (3) Disconnect the wiring harness from the TPM module. (4) Remove the two mounting screws. INSTALLATION (1) Place TPM module on instrument panel. Align the mounting holes. (2) Install the mounting screws. TPM module. (4) Install the instrument cluster gauge pack and all components removed to access it. (Refer to 8 - (5) Program the identification code from each tire pressure transmitter into the new TPM module. - STANDARD PROCE- DURE) 22 - 8 TIRES/WHEELS ZB MODULE - TPM (Continued) |