Subaru IMPREZA 2002 Service Manual page 144

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
I
D: DTC 31 THROTTLE POSITION SENSOR
DIAGNOSIS:
Input signal circuit
of
throttle position sensor is open or shorted.
TROUBLE SYMPTOM:
Shift point too high or too low; excessive shift shock; excessive tight corner "braking".
WIRING DIAGRAM:
NON-TURBO MODEL
@
TCM
L
THROTTLE
POSITION SENSOR
A.
0 0 0
6134 B 8135 C 6136 ECM
SHIELD AND
SENSOR GROUND
JOINT CONNECTOR
I
AT-52