LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (2 Of 4) >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Enabling Conditions
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Typical Enabling Conditions

ECT Sensor cold start monitor: 

ECT SENSOR COLD START MONITOR

Monitor runs whenever following DTCs not present P0102, P0103, P010C, P010D: MAF meter
P0097, P0098, P0112, P0113: IAT sensor
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 0 or more
Accumulated MAF 1534 g or more
Fuel cut OFF
Difference between ECT at engine start and IAT Less than 40°C (72°F)

ECT Sensor soak monitor: 

ECT SENSOR SOAK MONITOR

Monitor runs whenever following DTCs not present P0102, P0103, P010C, P010D: MAF meter
P0097, P0098, P0112, P0113: IAT sensor
Battery voltage 10.5 V or more
Engine Running
Soak time 5 hours or more
Either (a) or (b) condition met -
(a) ECT 60°C (140°F) or more
(b) Accumulated MAF 3420 g or more