Subaru Legacy 2002 Service Manual page 1347

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DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

Engine (DIAGNOSTICS)

O: DTC P0121 — THROTTLE POSITION SENSOR CIRCUIT

RANGE/PERFORMANCE PROBLEM (HIGH INPUT) —

¼ DTC DETECTING CONDITION:

¼ Two consecutive driving cycles with fault

¼ TROUBLE SYMPTOM:

¼ Erroneous idling

¼ Engine stalls.

¼ Poor driving performance

After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE <Ref. to EN(H6)-49,

OPERATION, Clear Memory Mode.> and INSPECTION MODE <Ref. to EN(H6)-46, OPERATION,

Inspection Mode.>.

¼ WIRING DIAGRAM:

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