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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (Engine Control System - Diagnostic Codes (2 Of 7)) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P0125-00: Insufficient Coolant Temperature for Closed Loop Fuel Control [09/2023 - ] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different car, the 2024 Lexus TX 500h. 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
Water control valve
Engine cooling system
Required Sensors/Components (Related) -
Frequency of Operation Once per driving cycle
Duration
  • 68 seconds: Engine coolant temperature at engine start is (closed-loop engine coolant temperature - 8.33°C [15°F]) or higher
  • 108 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])
  • 1200 seconds: 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
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