Description
Automatic transaxle system relies on various measurement data to determine the current control status and extrapolate the necessary compensation values. These values are used to control the actuators and achieve the desired control output. If a problem with the drivetrain, including the transaxle, has been identified, perform self-diagnosis and basic transaxle inspection (oil and fluid inspection) and then check the control system's components using the diagnosis tool.
Scheme 686
Transaxle Control Module (TCM) is the automatic transaxle's brain. The module receives and processes signals from various sensors and implements a wide range of transaxle controls to ensure optimal driving conditions for the driver.
TCM is programmed for optimal response to any on-road situation. In the event of a transaxle failure or malfunction, TCM stores the fault information in memory so that the technician may reference the code and quickly repair the transaxle.
Transaxle oil temperature sensor monitors the automatic transaxle fluid's temperature and conveys the readings to TCM. It is an NTC (Negative Thermal Coefficient) sensor whose resistance has an inversely proportional relationship with the temperature level. Data produced by this sensor is used to identify clutch activation and deactivation zones within the low temperature and high temperature range and to compensate hydraulic pressure levels during gear changes.
Scheme 687
Input speed sensor is a vital unit that measures the rate of rotation of the input shaft inside the transaxle and delivers the readings to the TCM. The sensor provides critical input data that's used in feedback control, gear setting control, line pressure control, clutch activation pressure control, and sensor fault analysis.
Scheme 688
Input speed sensor is a vital unit that measures the rate of rotation of the input shaft inside the transaxle and delivers the readings to the TCM. The sensor provides critical input data that's used in feedback control, gear setting control, line pressure control, clutch activation pressure control, and sensor fault analysis.
Scheme 689
Engine clutch control solenoid valve (E/C_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the engine clutch.
Scheme 690
26 brake control solenoid valve(26/B_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the 26 brake.
Scheme 691
Line pressure control solenoid valve is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the line pressure.
Scheme 692
35R clutch control solenoid valve(35R/C_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the 35R clutch.
Scheme 693
Underdrive brake control solenoid valve(UD/B_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the underdrive brake.
Scheme 694
Overdrive clutch control solenoid valve(OD/C_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the overdrive clutch.
Scheme 695
The SS-A solenoid valve is attached to the valve body and is an SS-A solenoid valve that is used to change gears.
The SS-A solenoid valve is attached to the valve body and is an SS-A solenoid valve that is used to change gears.
Inhibitor switch monitors the lever's position (P, R, N, D) and is used to control gear setting signals.
