CAN COMMUNICATION SYSTEM


  1. OUTLINE


    1. The Controller Area Network (CAN) is a serial data communication network for real time application. It is a multiplex communication network to be equipped in a vehicle, and has communication speeds of 500 kbps (HS-CAN), and the ability to detect malfunctions.

    2. The HS-CAN consists of the V bus, the power management bus*1, multi-media bus*2, diag bus*2 and multi-media local bus*3 and local bus*4.

    3. The CAN has 2 terminating resistors which are necessary for accurate judgment of communication on the main bus.

    4. The terminating resistors for the V bus are located in the combination meter assembly and the network gateway ECU*4 or the ECM*5.

    5. The terminating resistors for the power management bus*1 are located in the ECM and the power management control ECU.

    6. The terminating resistor for the multi-media bus*2 is located in the central gateway ECU (network gateway ECU).

    7. The terminating resistor for the diag bus*2 is located in the central gateway ECU (network gateway ECU).

    8. The terminating resistor for the multi-media local bus*3 is located in the combination meter assembly and the radio and display receiver assembly.

    9. The terminating resistors for the local bus*4 are located in the network gateway ECU and the ECM.


      • *1: Models for 1KR-FE engine and 1ND-TV engine

      • *2: Models with Toyota safety sense

      • *3: Model with color type multi-information display

      • *4: for GRMN

      • *5: Except GRMN