Nissan Juke Service and Repair Manual : P0115 ECT sensor

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

1.CHECK GROUND CONNECTIONS

1. Turn ignition switch OFF.

2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit Inspection".

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

NO >> Repair or replace ground connection.

2.CHECK ENGINE COOLANT TEMPERATURE SENSOR SUPPLY CIRCUIT

1. Disconnect engine coolant temperature sensor harness connector.

2. Turn ignition switch ON.

3. Check the voltage between engine coolant temperature sensor connector and ground.

Is the inspection result normal?


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

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

3.CHECK ENGINE COOLANT TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between engine coolant temperature sensor harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.


4. Also check harness for short to ground and short to power.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

4.CHECK ENGINE COOLANT TEMPERATURE SENSOR

Refer to EC-908, "Component Inspection".

Is the inspection result normal? YES >> GO TO 5.

NO >> Replace engine coolant temperature sensor.

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident", ???INCIDENT SIMULATION TESTS??? and ???GROUND INSPECTION???.

>> INSPECTION END

Component Inspection

1.CHECK ENGINE COOLANT TEMPERATURE SENSOR

Check resistance between engine coolant temperature sensor terminals 2 and 3 under the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace Engine coolant temperature sensor.

    P0110 IAT sensor
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit In ...

    P0120 TP sensor
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF and wait at least 20 seconds. 2. Check ground connection E38. Refer to Ground inspection ...

    Other materials:

    Shift lock system
    Component Function Check 1.CHECK SHIFT LOCK OPERATION (PART 1) 1. Turn ignition switch ON. 2. Shift the selector lever to “P” position. 3. Attempt to shift the selector lever to any other than position with the brake pedal released. Can the selector lever be shifted to any other positio ...

    General maintenance
    Throughout the daily operation of your vehicle, performing general maintenance at the intervals described in this section is vital for long-term reliability. Should you notice any unusual acoustic feedback, vibrations, or strange odors while driving your Nissan Leaf, be sure to investigate the sourc ...

    Push-button ignition switch does not operate
    Description Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and check each symptom. NOTE: The engine start function, door lock function, power distribution system, and NATS-IVIS/NVIS in the Intelligent Key system are closely relate ...