Monitor Strategy

WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.

Related DTCs	P0125: Insufficient engine coolant temperature for closed loop fuel control
Required Sensors/Components (Main)	Engine coolant temperature sensor Thermostat Engine cooling system
Required Sensors/Components (Related)	-
Frequency of Operation	Once per driving cycle
Duration	52 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 8.33°C [46.99°F]) or higher 134 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 19.44°C [66.99°F]) or higher, and less than (closed-loop engine coolant temperature - 8.33°C [46.99°F]) 1200 seconds: Engine coolant temperature at engine start is less than (closed-loop engine coolant temperature - 19.44°C [66.99°F])
MIL Operation	2 driving cycles
Sequence of Operation	None