Tire Pressure Monitoring System: 8020

8020 - LEFT REAR TIRE PRESSURE SENSOR/TRANSMITTER





When Monitored and Set Condition

- When Monitored: With the ignition ON, the Tire Pressure Monitor (TPM) module monitors the Tire Pressure Sensor/Transmitters approximately once a minute (60 - 68 seconds) when the vehicle speed is above 33 km/h (20 MPH).
- Set Condition: If the Tire Pressure Monitor (TPM) module cannot detect a signal from the Left Rear Tire Pressure Sensor for a period of 30 minutes, this DTC will be set.






Diagnostic Test


1. READING TPM DIAGNOSTIC TROUBLE CODES

NOTE: DTC 8020 will always be set in conjunction with DTC 8004.

NOTE: Under certain operating conditions (slow speed, stop-and-go driving, prolonged standing) the Tire Pressure Sensors can stop transmitting. This condition can be misdiagnosed as an inoperative Tire Pressure Sensor. Take care to fully diagnose any Sensor/Transmitter Failure code.





Turn the ignition ON.

With the DRB III(R), read and record the TPM DTCs.

With the DRB III(R), clear the TPM module DTCs.

Road test the vehicle.

Is the TPM Light on after the Road test?

Yes

- Go to 2

No

- The condition that caused this DTC to set is currently not present. Review the functionality for a possible intermittent condition.
- Perform the TIRE PRESSURE MONITOR VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test



2. CHECKING DTC RESET





Turn the ignition ON.

With the DRB III(R), read the TPM DTCs.

Did DTC 8020 - LEFT REAR TIRE PRESSURE SENSOR/TRANSMITTER reset?

Yes

- Replace the Left Rear Tire Pressure Sensor/Transmitter.

Retrain the Tire Pressure Sensor/Transmitter to the TPM module.
Perform the TIRE PRESSURE MONITOR VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test

No

- The condition that caused this DTC to set is currently not present. Review the functionality for a possible intermittent condition.
- Perform the TIRE PRESSURE MONITOR VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test