Nissan Juke Service and Repair Manual : P0100 MAF 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 MASS AIR FLOW SENSOR POWER SUPPLY CIRCUIT-I

1. Turn ignition switch OFF.

2. Disconnect mass air flow sensor harness connector.

3. Turn ignition switch ON.

4. Check the voltage between mass air flow sensor harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 3.

3.DETECT MALFUNCTIONING PART

Check the following.

Harness connectors E8, F1 Harness for open or short between IPDM E/R and mass air flow sensor

>> Repair open circuit or short to ground or short to power in harness or connectors.

4.CHECK MASS AIR FLOW SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connectors.

3. Check the continuity between mass air flow 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 5.

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

5.CHECK MASS AIR FLOW SENSOR NPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between mass air flow sensor harness connector and ECM harness connector.

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


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

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

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

6.CHECK MASS AIR FLOW SENSOR

Refer to EC-902, "Component Inspection".

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

NO >> Replace mass air flow sensor.

7.CHECK INTERMITTENT INCIDENT

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

>> INSPECTION END

Component Inspection

1.CHECK MASS AIR FLOW SENSOR

1. Turn ignition switch OFF.

2. Reconnect all harness connectors disconnected.

3. Turn ignition switch ON.

4. Check the voltage between mass air flow sensor harness connector.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace mass air flow sensor

    P0090 fuel pump
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) POWER SUPPLY 1. Turn ignition switch OFF. 2. Disconnect high pressure supply pump (p ...

    P0101 MAF sensor
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK AIR FILTER Check that air filter is not obstructed. Is the inspection result normal? Yes >> Repair or replace. No >> ...

    Other materials:

    Engine control system
    Symptom Table SYSTEM BASIC ENGINE CONTROL SYSTEM 1 - 6: The numbers refer to the order of inspection. (continued on next page) SYSTEM ENGINE MECHANICAL & OTHER 1 - 6: The numbers refer to the order of inspection. ...

    P182D 4WD solenoid left
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC CONFIRMATION PROCEDURE has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test. >> GO TO 2. 2.DTC REPRODUCTION PROCEDURE (1) W ...

    Refrigerant pressure sensor
    Component Function Check 1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION 1. Start engine and warm it up to normal operating temperature. 2. Turn A/C switch and blower fan switch ON. 3. Check the voltage between ECM harness connector and ground.] Is the inspection result normal? YES > ...