LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - DTC P0010 - P0159 >> DTC P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control >> Monitor Strategy
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Monitor Strategy

MONITOR STRATEGY CHART

Related DTCs P0125: Insufficient engine coolant temperature for closed-loop fuel control
Required Sensors/Components (Main) Thermostat, cooling system
Required Sensors/Components (Related) Engine coolant temperature sensor and mass air flow meter
Frequency of Operation Once per driving cycle
Duration 102.2 seconds: Closed-loop enable temperature -8.34°C (17°F) or more
182.8 seconds: Closed-loop enable temperature -19.45 to -8.34°C (-3 to 17°F)
1,200 seconds: Less than closed-loop enable temperature -19.45°C (-3°F)
MIL Operation 2 driving cycles
Sequence of Operation None