Tire Pressure Monitoring System (TPMS) Module
Wheels And Tires
Tire Pressure Monitoring System (TPMS) Module
The SJB contains the TPMS functionality. Refer to Tire Pressure Monitoring System Testing and Inspection in Diagnosis and Testing for TPMS fault diagnosis and repair.
The SJB compares the information of each tire pressure sensor transmission against a pressure limit. If the SJB determines that the tire pressure has fallen below the low limit, the SJB communicates this to the IC on the vehicle communication bus.