Subaru IMPREZA 2002 Service Manual page 219

SYMPTOM RELATED DIAGNOSTIC
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
I
16.Symptom Related Diagnostic
A: INSPECTION
Svmptom
Starter does not rotate when the select lever is in "P" or "N";
starter rotates when the select lever is in "R", "D", " 3 or " 2 .
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Abnormal noise when the select lever is in " P or "N"
Hissing noise occurs during standing start.
Noise occurs while driving in "Dl".
Noise occurs while driving in " 0 2 .
Noise occurs while driving in " D 3
Noise occurs while driving in 'ID4
Engine stalls while shifting from one range to another.
Vehicle moves when the select lever is in "N".
Shock occurs when the select lever is moved from "N" to " D .
Excessive time lag occurs when the select lever is moved from
"N" to " D .
Shock occurs when the select lever is moved from "N" to "R".
Excessive time lag occurs when the select lever is moved from
"N" to "R".
Vehicle does not start in any shift range (engine stalls).
Problem parts
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Inhibitor switch
Select cable
Select lever
Starter motor and harness
Strainer
Transfer duty solenoid
Oil pump
Drive plate
ATF level too high or too low
Strainer
ATF level too high or too low
Final gear
Planetary gear
Reduction gear
Differential gear oil level too high or too low
Final gear
Low & reverse brake
Reduction gear
Differential gear oil level too high or too low
Final gear
Low & reverse brake
Planetary gear
Reduction gear
Differential gear
oil level too high or too low
Control valve
Lock-up damper
Engine performance
Input shaft
TCM
Low clutch
TCM
Harness
Control valve
ATF deterioration
Control valve
Low clutch
Line pressure duty solenoid
Seal ring
Front gasket transmission case
TCM
Harness
Control valve
ATF deterioration
Control valve
Low & reverse clutch
Reverse clutch
Line pressure duty solenoid
Seal ring
Front gasket transmission case
Parking brake mechanism
Planetarv aear
AT-1 27