Input/Output Signal of TCM

Control item

Line pressure control

Vehicle speed control

Shift control

Lock-up control

Engine brake control

Fail-safe function⁽³⁾

Self-diagnostics function

Input

Accelerator pedal position signal ⁽⁵⁾

X

X

X

X

X

X

X

Output speed sensor

X

X

X

X

X

X

X

Vehicle speed signal⁽¹⁾⁽⁵⁾

X

Closed throttle position signal⁽⁵⁾

X⁽²⁾

X

X

X

X⁽⁴⁾

Wide open throttle position signal⁽⁵⁾

X

X⁽⁴⁾

Input speed sensor 1

X

X

X

X

X

Input speed sensor 2 (for 4th speed only)

X

X

X

X

X

Engine speed signals⁽⁵⁾

X

X

X

X

X

X

X

Stop lamp switch signal⁽⁵⁾

X

X

X

X⁽⁴⁾

A/T fluid temperature sensor

X

X

X

X

X

X

ASCD

Operation signal⁽⁵⁾

X

X

X

Overdrive cancel signal⁽⁵⁾

X

Output

Direct clutch solenoid

X

X

X

X

Input clutch solenoid

X

X

X

X

High and low reverse clutch solenoid

X

X

X

X

Front brake solenoid

X

X

X

X

Low coast brake solenoid (ATF pressure switch 2)

X

X

X

X

X

Line pressure solenoid

X

X

X

X

X

X

X

TCC solenoid

X

X

X

O/D OFF indictor lamp⁽⁶⁾

X⁽⁴⁾

Starter relay

X

X

⁽¹⁾	Spare for output speed sensor.

⁽²⁾	Spare for accelerator pedal position signal.

⁽³⁾	If these input and output signals are different, the TCM triggers the fail-safe function.

⁽⁴⁾	Used as a condition for starting self-diagnosis; if self-diagnosis is not started, it is judged that there is some kind of error.

⁽⁵⁾	Input by CAN communications.

⁽⁶⁾	Output by CAN communications.