Nissan Juke Service and Repair Manual : P0217 engine over temperature

DTC Logic

DTC DETECTION LOGIC

If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will rise.

When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is indicated.

Diagnosis Procedure


Diagnosis Procedure

1.CHECK COOLING FAN LOW SPEED FUNCTION

1. Start engine and let it idle.

2. Turn air conditioner switch and blower fan switch ON.

3. Make sure that cooling fan operates at low speed.

Is the inspection result normal? YES >> GO TO 2.

NO >> Refer to EC-1015, "Diagnosis Procedure".

2.CHECK COOLING FAN HIGH SPEED FUNCTION

1. Turn ignition switch OFF.

2. Turn air conditioner switch and blower fan switch OFF.

3. Disconnect engine coolant temperature sensor harness connector.

4. Connect 150 Ω resistor to engine coolant temperature sensor harness connector.

5. Restart engine and make sure that cooling fan operates at higher speed than low speed.

Is the inspection result normal? YES >> GO TO 3.

NO >> Refer to EC-1015, "Diagnosis Procedure".

3.CHECK COOLING SYSTEM FOR LEAK-I

Check cooling system for leak. Refer to CO-62, "Inspection".

Is leakage detected? YES >> GO TO 4.

NO >> GO TO 5.

4.CHECK COOLING SYSTEM FOR LEAK-II

Check the following for leak. Refer to CO-62, "Inspection".

• Hose
• Radiator
• Water pump

>> Repair or replace malfunctioning part.

5.CHECK RESERVOIR TANK CAP

Check reservoir tank cap. Refer to CO-65, "Inspection".

Is the inspection result normal? YES >> GO TO 6.

NO >> Replace reservoir tank cap.

6.CHECK THERMOSTAT

Check thermostat. Refer to CO-74, "Inspection".

Is the inspection result normal? YES >> GO TO 7.

NO >> Replace thermostat.

7.CHECK ENGINE COOLANT TEMPERATURE SENSOR

Refer to EC-908, "Component Inspection".

Is the inspection result normal? YES >> GO TO 8.

NO >> Replace engine coolant temperature sensor.

8.CHECK MAIN 12 CAUSES

If the cause cannot be isolated, check the following.

*1: Engine running at idle speed.


*1: Engine running at idle speed.

*2: Engine running at 3,000 rpm for 10 minutes.

*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.

*4: After 60 minutes of cool down time.

For more information, refer to CO-60, "Troubleshooting Chart".

>> INSPECTION END

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