#
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