LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> RX 350 FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Enabling Conditions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITIONS

Monitor will run whenever these DTCs are not present. P0100, P0102, P0103 (MAF Sensor)

ECT sensor cold start monitor: 

TYPICAL ENABLING CONDITIONS

Battery voltage 10.5 V or more
Time after engine start 1 second or more
ECT at engine start Less than 60°C (140°F)
IAT sensor circuit OK
Soak time 5 hours or more
Accumulated MAF 1,421.2 g or more
Engine Running
Fuel cut OFF
Difference between ECT at engine start and IAT Less than 40°C (72°F)

ECT sensor soak monitor: 

TYPICAL ENABLING CONDITIONS

Battery voltage 10.5 V or more
Engine Running
Soak time 5 hours or more
ECT at engine start 60°C (140°F) or more
Accumulated MAF 3,298.1 g or more