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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Engine Control System (4GR-FSE) - Diagnostic Codes (2 Of 5)) >> SFI System >> DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) [04/2013 - 06/2014] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
Related DTCs P0128: Coolant thermostat
Required Sensors/Components (Main) Water inlet with thermostat sub-assembly
Engine coolant temperature sensor
Required Sensors/Components (Related) Intake air temperature sensor
Vehicle speed sensor
Frequency of Operation Once per driving cycle
Duration 1310 seconds
MIL Operation 2 driving cycles
Sequence of Operation None