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Home >> Toyota >> 2009 >> Corolla S, 1.8 L, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System (2AZ-FE) - DTC P0010 - P0172) >> DTC P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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TYPICAL MALFUNCTION THRESHOLDS

Duration that both of following conditions (a) and (b) met 5 seconds or more
(a) Estimated engine coolant temperature 75°C (167°F) or more
(b) Engine coolant temperature sensor output Below 75°C (167°F)