SFI SYSTEM, Diagnostic DTC:P0116
| DTC Code | DTC Name |
|---|---|
| P0116 | Engine Coolant Temperature Circuit Range / Performance Problem |
DESCRIPTION
Refer to DTC P0115 Click here.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0116 | When either of following conditions met (2 trip detection logic):
|
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MONITOR DESCRIPTION
- ECT sensor cold start monitor
When a cold engine start is performed and then the engine is warmed up, if the ECT sensor value does not change, it is determined that a malfunction has occurred. If this is detected in 2 consecutive driving cycles, the 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 start is performed, it is determined that a malfunction has occurred. If this is detected in 2 consecutive driving cycles, the MIL is illuminated and a DTC is set.
CAUTION / NOTICE / HINT
Tech Tips
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If DTC P0115, P0117, P0118 or P0125 is set simultaneously with DTC P0116, the ECT sensor may have an open or a short circuit. Troubleshoot those DTCs first.
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Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
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CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116)
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Connect the intelligent tester to the DLC3.
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Turn the power switch on (IG).
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Turn the tester ON.
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Enter the following menus: Powertrain / Engine and ECT / DTC.
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Read the DTC.
Result Display (DTC Output) Proceed to P0116 A P0116 and other DTCs B
B 
GO TO DTC CHART Click here
A 
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INSPECT WATER INLET SUB-ASSEMBLY WITH THERMOSTAT
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Remove the water inlet sub-assembly with thermostat Click here.
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Check the valve opening temperature of the thermostat.
Standard 80 to 84°C (176 to 183°F) Tech Tips
In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard.
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Reinstall the water inlet sub-assembly with thermostat Click here.
OK
REPLACE ENGINE COOLANT TEMPERATURE SENSOR Click here
NG
REPLACE WATER INLET SUB-ASSEMBLY WITH THERMOSTAT Click here
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