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Related DTCs

P0116: Engine coolant temperature (ECT) sensor cold start monitor P0116: ECT sensor soak monitor

Required Sensors/Components (Main)

ECT sensor

Required Sensors/Components (Related)

None

Frequency of Operation

Once per driving cycle

Duration

5 hours or more

MIL Operation

2 driving cycles

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

ECT Sensor cold start monitor:

Monitor runs whenever following DTCs not present

P0100 to P0103: Mass Air Flow (MAF) meter P0110 to P0113: Intake Air Temperature (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

5 hours or more

Accumulated MAF

604.75 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:

Monitor runs whenever following DTCs not present

PG1GG to PG1G3: MAF meter PG11G to PG113: 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

1128.55 g or more

TYPICAL MALFUNCTION THRESHOLDS

ECT Sensor cold start monitor:

ECT sensor value change

Less than 5°C (9°F)

ECT Sensor soak monitor:

Difference between current ECT sensor value and previous ECT sensor value when engine stopped

Less than 5°C (9°F)

COMPONENT OPERATING RANGE

ECT

ECT sensor value changes in accordance with actual ECT

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