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Input/Output Signal of TCM

CONTROL ITEM REFERENCE

Control item

Line pressure control

Vehicle speed control

Shift control

Lock-up control

Engine brake control

Fail-safe function

Self-diagnostics function

Input

Accelerator pedal position signal(⁽⁵⁾)

X

X

X

X

X

(⁽³⁾) X

X

Output speed sensor

X

X

X

X

X

(⁽³⁾) X

X

Vehicle speed signal

(⁽¹⁾) X

(⁽¹⁾) X

(⁽¹⁾) X

(⁽¹⁾) X

X

Closed throttle position signal(⁽⁵⁾)

(⁽²⁾) X

(⁽²⁾) X

X

X

(⁽⁴⁾) X

Wide open throttle position signal(⁽⁵⁾)

(⁽²⁾) X

(⁽²⁾) X

(⁽⁴⁾) X

Input speed sensor

X

X

X

X

X

Engine speed signal

X

X

X

X

Transmission range switch

X

X

X

X

X

(⁽³⁾) X

(⁽⁴⁾) X

Stop lamp switch signal(⁽⁵⁾)

X

X

(⁽⁴⁾) X

A/T fluid temperature sensors(⁽⁵⁾)

X

X

X

X

X

X

Overdrive control switch signal(⁽⁵⁾)

X

X

X

X

(⁽⁴⁾) X

TCM power supply voltage signal

X

X

X

X

Output

Shift solenoid valve A/B

X

(⁽³⁾) X

X

Line pressure solenoid

X

(⁽³⁾) X

X

Torque converter clutch solenoid valve

X

(⁽³⁾) X

X

Overrun clutch solenoid valve

X

X

(⁽³⁾) X

X

OD OFF indicator lamp(⁽⁶⁾)

X

X

⁽¹⁾	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-diagnostics; if self-diagnosis are not started, it is judged that there is some kind of error.

⁽⁵⁾	Input by CAN communications.

⁽⁶⁾	Output by CAN communications.