Input/Output Signal Of TCM

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

INPUT/OUTPUT SIGNAL OF TCM DESCRIPTION

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⁾)

Vehicle speed sensor A/T (revolution sensor)

Vehicle speed sensor MTR (⁽¹⁾) (⁽⁵⁾)

Closed throttle position signal (⁽⁵⁾)

(⁽²⁾) X

(⁽⁴⁾) X

Wide open throttle position signal (⁽⁵⁾)

(⁽²⁾) X

(⁽⁴⁾) X

Turbine revolution sensor 1

Turbine revolution sensor 2 (for 4th speed only)

Engine speed signals (⁽⁵⁾)

PNP switch

(⁽⁴⁾) X

Stop lamp switch signal (⁽⁵⁾)

(⁽⁴⁾) X

A/T fluid temperature sensors 1, 2

ASCD

Operation signal (⁽⁵⁾)

Overdrive cancel signal (⁽⁵⁾)

TCM power supply voltage signal

Output

Direct clutch solenoid (ATF pressure switch 5)

Input clutch solenoid (ATF pressure switch 3)

High and low reverse clutch solenoid (ATF pressure switch 6)

Front brake solenoid (ATF pressure switch 1)

Low coast brake solenoid (ATF pressure switch 2)

Line pressure solenoid

TCC solenoid

Self-diagnostics table (⁽⁵⁾)

Starter relay

⁽¹⁾	Spare for vehicle speed sensor. A/T (revolution 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-diagnostics are not started, it is judged that there is some kind of error.

⁽⁵⁾	CAN communications