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Home >> Subaru >> 2006 >> Baja Turbo, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) - >> General Driving Cycle

General Driving Cycle

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After starting the engine at cool condition, always perform the diagnosis until the engine coolant temperature becomes more than 75°C (167°F).