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Home >> Subaru >> 2004 >> Forester XT, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine (Diagnostics) (H4DOTC) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) >> Trouble Symptom:

Trouble Symptom:

Thermostat remains open.

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode < Ref. to OPERATION  . > and Inspection Mode < Ref. to OPERATION  . >.
Fig 1: Diagnostic Procedure Chart
G00966497Courtesy of SUBARU OF AMERICA, INC.
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