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7A1–10 TRANSMISSION CONTROL SYSTEM (4L30–E) Functions of Input / Output Components Components Function Speed sensor (fixed to transmission Senses rotation of output shaft and feeds the data to Powertrain Control Module Throttle position sensor (fixed to engine) Senses the extent of throttle valve opening and the speed of the throttle valve I N Brake Switch (SW) (fixed to brake pedal) Senses whether the driver has pressed the brake pedal or not and feeds the N Kickdown SW (fixed to accelerator pedal) Senses whether the driver has pushed the accelerator pedal fully or not, and U Mode SW (fixed to T/M) Senses the select lever position, and feeds the information to PCM.
S I Power drive SW (fixed to front console) Senses whether the driver has selected the power mode, and feeds the I G T/M oil temp. sensor Senses the T/M oil temperature and feeds the data to PCM N Engine coolant tempera- Senses the engine coolant temperature, and feeds the data to PCM. L Engine speed signal Feeds the signals monitoring engine speed to PCM from crank angle sensor. Air conditioning information Senses whether the air conditioner has been switched on or not, and feeds the Winter switch (fixed to front Senses whether the driver has selected the winter mode, and feeds the informa- Cruise controller * (Over- Downshift takes place when Overdrive OFF signal is received from auto cruise S Shift solenoid A, B Selects shift point and gear position suited to the vehicle running condition on O S Band apply solenoid Controls oil flow suited to the vehicle running condition on the basis of PCM O E Torque Converter Controls clutch engagement/disengagement suited to the vehicle running P
O I D Force motor (Pressure regulator Adjusts the oil pump delivery pressure to line pressure suited to the vehicle
S I Power drive mode lamp Informs the driver whether the vehicle is in power mode or not. I G Winter drive mode lamp Informs the driver whether the vehicle is in winter mode or not. G T/M monitor lamp (“CHECK TRANS”) Informs the driver of failure in the system. L ATF warning lamp Lights when ATF oil temperature rises. ABS signal * When the select lever is at “Reverse” or “L” range, sends a signal to the ABS * If equipped |