Subaru IMPREZA 2002 Service Manual page 450

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDlAGNOSTlCSl
~
P: DTC PO121
-
THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFOR-
MANCE PROBLEM (HIGH INPUT)
-
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(S0HC)-43, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(SOHC)40, OPERATION, Inspec-
tion Mode.>.
WIRING DIAGRAM:
THROTTLE
POSITION
l i
P
EN 1087
EN(S0HC)-126