3A1-4
CHANGEDBY
EFFECTIVE DATE
AFFECTEDVIN
DC 5-SPEEDAUTOMATIC TRANSMISSION
REXTONSM - 2004.4
Engine torque Torque
converter Automatic
transmission Final drive
gear Output
torque
Multiple disc
clutch Multiple disc
brake
Torque
converter
lockup
clutch
Flywheel
Characteristic Function and Description
CHARACTERISTICS
Slope recognition
(down hill, up hill)
Engine torque limitation
Engine torque decrease
Engine rpm limitation
ESP Operation
ABS Operation
Fast-off function
Altitude recognition
Oil temperature
Hydraulic pressure is pro-
duced in emergency driv-
ing mode
Adaptation
Recognize it according to engine RPM and accelerator
pedal position
During 1st gear driving or reverse driving with full throttle
condition
Delay of ignition timing to reduce torque at all shifting
moments
Limit engine rpm until the gears are fully engaged when
shifting from “P” or “N” to “D”
When the ESP is controlling the engine torque, shifting is
not available and vehicle starts off with 2nd gear.
Not any effect to brake control
Does not up shift when accelerator pedal is abruptly re-
leased
As altitude increases (atmospheric pressure
reduces) engine torque decreases. Up shift while
additionally depressing the accelerator pedal
(adjusting shift diagram)
If transmission oil temperature is too low, the shifting point
gets delayed in full throttle and kick down
When starting the engine with cycling the ignition
switch (“OFF” and “ON”) due to transmission trouble,
the selector lever should be placed in “P” position. If
starting the engine with selector lever “N” position,
the lever should be moved into “P” position. Because,
the hydraulic pressure can be produced in selector
lever “P” position.
Function to optimize the shifting quality.
Effect
Delay up shift
Prevent automatic transmis-
sion from overheating
Improve shift quality
Prevent shift shock
Cannot use kick-down func-
tion and shift at maximum rpm
To get an engine brake effect
during cornering
Improves driving performance
and increases torque
Improvesdriving performance
The hydraulic pressure flows
withdirect operation modevia
“R” and “D” valve to operate
“R” and “forward 2nd” gear.
To exclude play and wear
