Tire Pressure Module: Service and Repair

Tire Pressure Monitoring System (TPMS) Module













Removal

NOTICE: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.

NOTE: The Tire Pressure Monitoring System (TPMS)/Vehicle Security Module (VSM) is also identified as the VSM.

NOTE: Prior to the replacement of the TPMS/VSM, it is necessary to upload the module configuration information to a scan tool. This information must be downloaded into the new TPMS/VSM after installation. For additional information, refer to Information Bus.

NOTE: The steps included in this procedure are critical to restoring the TPMS to normal operation. A new TPMS/VSM is delivered in a manufacturing mode with 6 pre-set DTCs related to the TPMS. To clear the DTCs, successful configuration of the TPMS/VSM must occur, followed by successful TPMS sensor training, and a successful self-test. The DTCs are as follows:
- B2477 - Module Configuration Failure
- B2868 - Left Front Tire Pressure Sensor Fault
- B2869 - Right Front Tire Pressure Sensor Fault
- B2870 - Right Rear Tire Pressure Sensor Fault
- B2871 - Left Rear Tire Pressure Sensor Fault
- C2780 - ECU in Manufacturer Sub-State

1. NOTE: This step is necessary only if the TPMS/VSM is being replaced.

Upload the module configuration information from the TPMS/VSM. For additional information, refer to Information Bus.

2. Open the glove compartment door and while pushing in on the glove compartment tabs, position the glove compartment downwards.





3. Disconnect the Accessory Protocol Interface Module (APIM) electrical connector.





4. Disconnect the 2 TPMS/VSM electrical connectors.

5. Remove the 2 nuts and the TPMS/VSM.

Installation

1. Position the TPMS/VSM and install the 2 nuts.
- Tighten to 6 Nm (53 lb-in).
- Connect the 2 electrical connectors.

2. Connect the APIM electrical connector.





3. While pushing in on the glove compartment tabs, position the glove compartment upwards and close the glove compartment door.





4. NOTE: When successful, this step provides the calibration necessary for the TPMS/VSM operation and will clear DTC B2477. The clearing of this DTC indicates the calibration data has been successfully downloaded to the new TPMS/VSM.

Download the TPMS/VSM configuration information from the scan tool. For additional information, refer to Information Bus.

5. NOTE: When successful, this step clears DTCs B2868, B2869, B2870 and B2871. The clearing of these DTCs indicates the TPMS/VSM has recognized the tire pressure sensors during the training procedure.

Train the tire pressure sensors. For additional information, refer to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training.

6. NOTE: DTC C2780 will not clear if any other DTCs are present in the TPMS/VSM. When successful, this step will clear DTC C2780.

Carry out the TPMS/VSM self-test (must include an on-demand self test) and then repeat the self-test to confirm all DTCs have been cleared.