COMPONENT DESCRIPTIONS (ELECTRONIC CONTROL) [FN4A-EL]


BME051718880T05

Part name

Function

Input system
HOLD switch
• Selects driving modes (HOLD) and changes driving patterns.
TR switch
• Detects the selector lever ranges/positions.
TP sensor
• Detects the throttle valve opening angle.
Input/turbine speed sensor
• Detects the forward clutch drum (input) revolution speed.
Oil pressure switch
• Detects the forward clutch pressure.
VSS
• Detects the differential gear case (output) revolution speed.
Brake switch
• Detects the use of service brake.
TFT sensor
• Detects the ATF temperature.
ECT sensor
• Detects the engine coolant temperature.
CKP sensor
• Detects the engine revolution speed.
MAF sensor
• Detects the intake air amount.
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 defected by diagnosis function
Speedometer signal
• Outputs the vehicle speed signal to speedometer