Input/Output Signal of TCM

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

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⁾)

Output speed sensor

Vehicle speed signal(⁽¹⁾) (⁽⁵⁾)

Closed throttle position signal(⁽⁵⁾)

X(⁽²⁾)

X(⁽⁴⁾)

Wide open throttle position signal(⁽⁵⁾)

X(⁽⁴⁾)

Input speed sensor 1

Input speed sensor 2 (for 4th speed only)

Engine speed signals(⁽⁵⁾)

Stop lamp switch signal(⁽⁵⁾)

X(⁽⁴⁾)

A/T fluid temperature sensor

ASCD

Operation signal(⁽⁵⁾)

Overdrive cancel signal(⁽⁵⁾)

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

A/T CHECK indicator lamp (with manual mode) (⁽⁶⁾)

X(⁽⁴⁾)

O/D OFF indicator lamp (without manual mode) (⁽⁶⁾)

X(⁽⁴⁾)

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⁾	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.