LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Prius Plug-in >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Plug-In) (Diagnostic Codes (P0010-P0454)) >> SFI System >> DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control >> Monitor Strategy
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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 87 seconds: Engine coolant temperature at engine start -3.33°C (26°F) or higher
186 seconds: Engine coolant temperature at engine start -14.44°C (6°F) or higher, and less than -3.33°C (26°F)
1200 seconds: Engine coolant temperature at engine start less than -14.44°C (6°F)
MIL Operation 2 driving cycles
Sequence of Operation None