Subaru LEGACY 2002 Quick Reference Index page 311

K: AWD TRANSFER CLUTCH CONTROL (MPT MODELS)
Control item
1 Basic control
2 1 range control
3 Slip control
4 Turning control
5 ABS control
P and N range con-
6
trol
Sensor
Battery voltage
Throttle position sensor
ATF temperature sensor
Rear vehicle speed sensor
(rear wheel rpm)
Front vehicle speed sensor
(front wheel rpm)
Inhibitor switch
FWD switch
Brake switch
ABS signal
TRANSMISSION CONTROL MODULE (TCM)
Type of control
Regulates transfer clutch pressure in re-
sponse to throttle position and vehicle
speed.
Increases transfer clutch pressure above
basic control pressure
Increases transfer clutch pressure to the
same level as in the 1 range immediately
after a slip is detected.
Decreases transfer clutch pressure upon
detection of a turn.
Regulates to the specified transfer clutch
pressure quickly when the ABS signal is
input.
Regulates to the specified transfer clutch
pressure quickly when shifted to the P or N
range.
Input
interface
circuit
Input
interface
circuit
Gear position
1st thru 4th and reverse
1st
1st thru 4th and reverse
1st thru 4th and reverse
1st thru 4th and reverse
P and N
TCM
A/D
converter
CPU
Memory
Constant
voltage source
AT-35
Automatic Transmission
Remarks
–
Release:
When running faster than the set vehi-
cle speed with fully closed throttle
–
–
–
Actuator
Output
Transfer
interface
duty
circuit
solenoid
Transfer
clutch
B3H0314
NF0466