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Input/Output Signal of TCM

DIAGNOSTICS FUNCTION CHART

Control item

Line pressure control

Vehicle speed control

Shift control

Lock up control

Engine brake control

Fail-safe function (⁽³⁾)

Self-diagnostics function

Input

Throttle angle signal (⁽⁵⁾)

X

X

X

X

X

X

X

Throttle position signal (⁽⁵⁾)

X(⁽²⁾)

X(⁽²⁾)

X

X(⁽²⁾)

X(⁽⁴⁾)

Revolution sensor

X

X

X

X

X

X

X

Turbine revolution sensor

X

X

X

X

X

X

Vehicle speed signal MTR(⁽¹⁾) (⁽⁵⁾)

X

X

X

X

X

X

Engine speed signals(⁽⁵⁾)

X

X

X

X

X

Engine torque signals(⁽⁵⁾)

X

X

X

X

X

X

PNP switch

X

X

X

X

X

X

X(⁽⁴⁾)

Lever switch

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

X

X

TCM power supply voltage signal

X

X

X

X

X

X

X

Output

Shift solenoid valve A/B/C/D/E

X

X

X

X

Pressure control solenoid valve A

X

X

X

X

X

X

X

Pressure control solenoid valve B

X

X

X

X

X

Pressure control solenoid valve C

X

X

X

X

Self-diagnostics table(⁽⁵⁾)

X

⁽¹⁾	Spare for revolution sensor

⁽²⁾	Spare for throttle angle 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-diagnostics are not started, it is judged that there is some kind of error.

⁽⁵⁾	CAN communications.