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MIL is illuminated and a DTC is set. ECT sensor soak monitor If the ECT sensor value does not change after the warmed up engine is stopped and then the next cold engine MONITOR STRATEGY MONITOR STRATEGY TYPICAL ENABLING CONDITIONS ECT sensor cold start monitor: TYPICAL ENABLING CONDITIONS ECT sensor soak monitor: TYPICAL ENABLING CONDITIONS Related DTCs P0116: Engine coolant temperature (ECT) sensor cold start Required Sensors/Components (Main) ECT sensor None Frequency of Operation Once per driving cycle Duration 5 hours or more MIL Operation 2 driving cycles Sequence of Operation None Monitor runs whenever following DTCs not P0102 to P0103: Mass Air Flow (MAF) meter 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 1670 g or more Engine Running Fuel cut OFF Difference between ECT at engine start and IAT Less than 40°C (72°F) Monitor runs whenever following DTCs not present P0102 to P0103: MAF meter
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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