With RPO WC2 or WC8

DTC C0750, C0755, C0760, or C0765 (w/ WC2 or WC8)
Circuit Description
The tire pressure monitor (TPM) system has a radio frequency transmitting pressure sensor secured to the run flat ring inside each wheel/tire assembly. As vehicle speed increases to above 32 km/h (20 mph), the sensors internal roll switch closes which puts the sensors into drive mode. In this mode the sensors begin to transmit once every 60 seconds to the remote control door lock receiver (RCDLR). The data within the sensors radio frequency transmission is translated by the RCDLR into sensor presence, sensor mode, and tire pressure. The RCDLR waits for the first sensor to go into drive mode, then checks if all sensors have gone into drive mode.

DTC Descriptors
This diagnostic procedure supports the following DTCs:
^ DTC C0750 Left Front Low Tire Pressure Sensor
^ DTC C0755 Right Front Low Tire Pressure Sensor
^ DTC C0760 Left Rear Low Tire Pressure Sensor
^ DTC C0765 Right Rear Low Tire Pressure Sensor

Conditions for Running the DTC
Vehicle speed is at least 40 km/h (20 mph).

Conditions for Setting the DTC
Any given sensor does not go into drive mode, or does not transmit at all for 35 minutes.

Action Taken When the DTC Sets
^ A DTC is stored in memory.
^ The driver information center (DIC) displays the SERVICE TIRE MONITOR warring message.
^ The DIC displays the suspect tire pressure as dashes.

Conditions for Clearing the DTC
^ A current DTC will clear when the malfunction is no longer present.
^ A history DTC will clear after 100 consecutive malfunction-free ignition cycles.

Diagnostic Aids
^ Loss of, or low system battery voltage, or disconnecting the RCDLR will cause the sensor Id codes to be erased from the RCDLRs memory and set all 4 sensor DTCs. If this conditions is suspected,
^ Occasionally sensors can become mislocated due to previous tire rotations where sensor identification (ID) relocation procedure was not performed. Always enter the sensor ID codes in their proper location as noted on the outside of the vehicles wheel mounting flanges to ensure the DTC set is for that actual physical corner of the vehicle.
^ Occasionally sensor transmissions are not received by the RCDLR due to vehicle level radio frequency interference.

Test Description





The numbers below refer to the step numbers on the diagnostic table.
2. This step tests if the sensors internal battery level is low
3. This step tests if the malfunction was system, or vehicle condition related. Some occurrences of this DTC are caused by certain vehicle conditions.
5. This step tests if the malfunction was corrected by sensor replacement or if the malfunction still exists in the RCDLR.