High Speed Controller Area Network Chassis Systems Bus
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
The Tire Pressure Monitoring System Control Module (TPMSCM) sends and receives a number of digital messages through the High Speed (HS) Controller Area Network (CAN) chassis systems bus. The received messages are used to operate the TPMS. The transmitted messages comprise of Tire Pressure Monitoring System (TPMS) status, warning and pressure information and requests to the Instrument Cluster (IC). The IC has to turn on or off the warning indicator and/or display messages in the message center.
The TPMSCM transmits the messages shown in the following table:
| MESSAGE | RECEIVED BY |
|---|---|
| Tire Pressure Monitoring System (TPMS) diagnostic response | Jaguar Land Rover (JLR) approved diagnostic equipment |
| TPMS amber warning indicator request at 25% (or 20% depending on market) tire deflation | Instrument Cluster (IC) |
| TPMS message display request | IC |
| Current tire pressures | IC |
| Recommended tire pressure data including heavy load and/or high speed values | IC |