Subaru IMPREZA 2002 Service Manual page 221

SYMPTOM RELATED DIAGNOSTIC
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
'Engine brake is not effected when the select lever is in " 3 or "2"
range.
Engine brake is not effected when the select lever
is
in "1"
range.
Shift characteristics are erroneous.
No shift occurs from 3rd to 4th gear.
Engine brake is not effected when the select lever is in " 3
r
range.
m n u brake is not effected.
Shift lever cannot be moved or is hard to move from "P" range.
ATF spurts out.
Differential oil swrts out.
Differential oil level changes excessively.
Odor is produced from ATF supply pipe.
Shock occurs from 1st to 2nd gear.
Problem parts
TCM
B
Shift solenoid 1
B
ATF temperature sensor
Control valve
B
2-4 brake
B
Inhibitor switch
TCM
* Throttle position sensor
* Control valve
0
Control valve
* Control valve
Low & reverse brake
Inhibitor switch
TCM
Front vehicle speed sensor
Rear vehicle speed sensor
Throttle position sensor
Control valve
Ground earth
TCM
Throttle position sensor
ATF temperature sensor
Control valve
Lock-up facing
Engine speed signal
Select cable
Select lever
Parkinu mechanism
ATF level too high
Differential gear oil too high
Seal pipe
Double oil seal
High clutch
2-4 brake
Low & reverse clutch
Reverse clutch
Lock-up facing
ATF deterioration
TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake
ATF deterioration
Engine performance
2-4 brake timing solenoid
TCM
Throttle position sensor
2-4 brake duty solenoid
ATF temperature sensor
Line pressure duty solenoid
Control valve
2-4 brake
2-4 brake timing solenoid
Hiah clutch
I
I