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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 69 (Engine Control System (2GR-FE) (Diagnostic Codes (P0010-P0340) & Circuit Tests)) >> SFI System >> DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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Duration that all of the following conditions 1 and 2 are met 5 seconds or more
1. Estimated engine coolant temperature 75°C (167°F) or more
2. Engine coolant temperature sensor output Less than 75°C (167°F)