Controller Area Network (Can) Description - Mazda Mazda6 Workshop Manual Supplement

CONTROLLER AREA NETWORK (CAN) DESCRIPTION

Outline
• The TCM transmits/receives information using the CAN system. See Section T for detailed information
regarding the CAN system.
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
• Engine torque (without torque down)
• Engine torque (with torque down)
• Engine torque (loss torque)
• Torque reduction request
• ECT
• Engine speed
• Buttery reconnection
Output
• Range position
• Turbine speed
• ATF temperature
• TCC
• Racing select
• Gear position
• Desired torque
• Desired gear position
• Upper torque limit
• Traveled distance
• MIL indicate request
• AT warning light indicate request
End Of Sie
K2–50
AUTOMATIC TRANSAXLE
A6E571418901201