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Home >> Lexus >> 2015 >> GS 350 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (1 Of 4) >> SFI System >> DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control [09/2014 - 10/2015] >> Monitor Strategy

Monitor Strategy

Related DTCs P0125: Insufficient engine coolant temperature for closed loop fuel control
Required Sensors/Components (Main) Engine coolant temperature sensor, thermostat, cooling system
Required Sensors/Components (Related) -
Frequency of Operation Once per driving cycle
Duration (for 2WD models)
68 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 8.33°C (15°F)) or higher.(
112 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 19.44°C [35°F]) or higher, and less than (closed-loop engine coolant temperature - 8.33°C [15°F]).
20 minutes: Engine coolant temperature at engine start is less than (closed-loop engine coolant temperature - 19.44°C [35°F]).
(for AWD models)
78 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 8.33°C (15°F)) or higher.
131 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 19.44°C [35°F]) or higher, and less than (closed-loop engine coolant temperature - 8.33°C [15°F]).
20 minutes: Engine coolant temperature at engine start is less than (closed-loop engine coolant temperature - 19.44°C [35°F]).
MIL Operation 2 driving cycles
Sequence of Operation None