Controller Area Network (Can)
The Tire Pressure Monitoring Control Module (TPMCM) sends and receives a number of digital messages through the CAN bus. The received messages are used to operate the Tire Pressure Monitoring System (TPMS). The transmitted messages comprise of TPMS status, warning and pressure information and requests to the IC to turn on or off warning indicators and/or display messages in the message center.
The TPM module transmits the messages shown in the following table:
| MESSAGE | RECEIVED BY |
|---|---|
| TPMS diagnostic response | Jaguar-approved diagnostic system |
| TPMS amber warning indicator request at 25% (or 20% depending on market) tire deflation | Instrument cluster |
| TPMS message display request | Instrument cluster |
| Current tire pressures | Instrument cluster |
| Recommended tire pressure data including heavy load and/or high speed values | Instrument cluster |