Input/Output Signal of TCM

WARNING: This page is about a different car, the 2011 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

TCM INPUT/OUTPUT SIGNAL REFERENCE 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

Accelerator pedal position signal (⁽⁴⁾)

Output speed sensor

Vehicle speed signal (⁽¹⁾) (⁽⁴⁾)

Closed throttle position signal (⁽⁴⁾)

(⁽²⁾) X

(⁽⁵⁾) X

Wide open throttle position signal (⁽⁴⁾)

(⁽²⁾) X

(⁽⁵⁾) X

Input speed sensor 1

Input speed sensor 2 (for 4th speed only)

Engine speed signals (⁽⁴⁾)

Transmission range switch

Stop lamp switch signal (⁽⁴⁾)

(⁽⁵⁾) X

A/T fluid temperature sensors 1, 2(⁽⁶⁾)

ASCD

Operation signal (⁽⁴⁾)

Overdrive cancel signal (⁽⁴⁾)

TCM power supply voltage signal

Output

Direct clutch solenoid

Input clutch solenoid

High and low reverse clutch solenoid

Front brake solenoid

Low coast brake solenoid (ATF pressure switch 2)

Line pressure solenoid

TCC solenoid

Starter relay

⁽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⁾	CAN communications.

⁽⁵⁾	Used as a condition for starting self-diagnostics; If self-diagnostics are not started, it is judged that there is some kind of error.

⁽⁶⁾	A/T fluid temperature sensor 2 does not have any function.