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Home >> Lexus >> 2009 >> IS 250 RWD, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (DTCS P0010 - P0368) >> SFI System >> DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) >> Monitor Strategy

Monitor Strategy

Related DTCs P0128: Coolant Thermostat
Required Sensors/Components (Main) Thermostat
Required Sensors/Components (Related) Engine Coolant Temperature (ECT) sensor, Intake Air Temperature (IAT) sensor, Vehicle speed sensor
Frequency of Operation Once per driving cycle
Duration 600 seconds
MIL Operation 2 driving cycles
Sequence of Operation None