Tire Pressure Module: Service and Repair

TIRE PRESSURE MONITORING SYSTEM MODULE REMOVAL/INSTALLATION

CAUTION:Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage can result.
NOTE:The tire pressure monitoring system (TPMS) is integral to the smart junction box (SJB) and is not serviced separately.
NOTE:A new SJB module is delivered in manufacturing mode with pre-set diagnostic trouble codes (DTCs). These DTCs require that a particular set of operations to be carried out in order to clear them and enable the module for normal operations. The pre-set DTCs are as follows: B2477 - Module Configuration Failure/MismatchB2868 - Left Front Tire Pressure Sensor FaultB2869 - Right Front Tire Pressure Sensor FaultB2870 - Left Rear Tire Pressure Sensor FaultB2871 - Right Rear Tire Pressure Sensor Fault C2780 - ECU in Manufacturing Mode
NOTE:A reconfigured SJB may also set the above codes and will need to go through the same set of procedures as a new module to enable normal operation.
NOTE:The steps included in the SJB removal and installation process are critical to tire pressure monitoring system (TPMS) operations and will permit a new or reconfigured module to operate as intended. Each step is designed to carry out a particular operation and clear the manufacturing mode DTCs. Once these DTCs are cleared, the new or reconfigured module will enter into normal operating mode.
1. Remove the SJB. See Smart Junction Box (SJB) Removal/Installation.