ELECTRONIC CONTROL SYSTEM FUNCTION

id051700117000

Part name

Function

Input system

HOLD switch

•  Selects driving modes (HOLD) and changes driving patterns.

TR switch

•  Detects selector lever ranges/positions.

TFT sensor

•  Detects the ATF temperature.

Input/turbine speed sensor

•  Detects the forward clutch drum (input) revolution speed.

VSS

•  Detects the differential gear case (output) revolution speed.

Brake switch

•  Detects the use of service brake.

ECT sensor

•  Detects the engine coolant temperature.

MAF sensor

•  Detects the intake air amount.

APP sensor

•  Detects the accelerator pedal depressing amount.

CKP sensor

•  Detects the engine revolution speed.

Output system

Linear type

Pressure control solenoid

•  Adjusts the line pressure.

Duty-cycle type

Shift solenoid A

•  Controls the clutch engagement pressure.

Shift solenoid B

•  Controls the clutch engagement pressure.

Shift solenoid C

•  Controls the clutch engagement pressure.

ON/OFF type

Shift solenoid D

•  Switches the hydraulic passages for bypass valve and 3-4 shift valve.

Shift solenoid E

•  Switches the hydraulic passages for low and reverse shift valve, TCC, and control valve.

HOLD indicator light

•  By switching HOLD switch, illuminates to indicate that it is in HOLD mode.

•  Flashes when failure is detected by diagnosis function.

Part name			Function
Input system	HOLD switch		• Selects driving modes (HOLD) and changes driving patterns.
	TR switch		• Detects selector lever ranges/positions.
	TFT sensor		• Detects the ATF temperature.
	Input/turbine speed sensor		• Detects the forward clutch drum (input) revolution speed.
	VSS		• Detects the differential gear case (output) revolution speed.
	Brake switch		• Detects the use of service brake.
	ECT sensor		• Detects the engine coolant temperature.
	MAF sensor		• Detects the intake air amount.
	APP sensor		• Detects the accelerator pedal depressing amount.
	CKP sensor		• Detects the engine revolution speed.
Output system	Linear type	Pressure control solenoid	• Adjusts the line pressure.
	Duty-cycle type	Shift solenoid A	• Controls the clutch engagement pressure.
		Shift solenoid B	• Controls the clutch engagement pressure.
		Shift solenoid C	• Controls the clutch engagement pressure.
	ON/OFF type	Shift solenoid D	• Switches the hydraulic passages for bypass valve and 3-4 shift valve.
	ON/OFF type	Shift solenoid E	• Switches the hydraulic passages for low and reverse shift valve, TCC, and control valve.
	HOLD indicator light		• By switching HOLD switch, illuminates to indicate that it is in HOLD mode. • Flashes when failure is detected by diagnosis function.