CAR AREA NETWORK (CAN) DESCRIPTION [JA5A-EL]

BME051718901T01

Outline

• CAN (Controller Area Network) transmits information between the TCM and the PCM via CAN.

Structure/Operation

• The PCM inputs throttle opening angle, engine speed, engine torque, engine coolant temperature. to the TCM.

• The TCM operates shift and TCC controls based on the throttle opening angle, and controls line pressure and other based on the throttle opening angle and the engine torque.

• The TCM outputs reduce torque signal, range signal, turbine speed, ATF temperature signal, and TCC signal to the PCM.

• If there is an open or short circuit in the CAN wiring, the system determines that the CAN is abnormal and switches to fail-safe mode.

Input

• Throttle position signal

• Engine torque signal (without torque down)

• Engine torque signal (with torque down)

• Engine torque signal (loss torque)

• Torque reduced signal

• Engine coolant temperature signal

• Engine speed signal

• Buttery OFF signal

Output

• Reduce torque signal

• Range signal

• Turbine speed signal

• ATF temperature signal

• TCC signal

• Racing select signal

• MIL indicate request signal