Nissan Juke Service and Repair Manual : P0200 fuel injector

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

1.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Disconnect fuel injector harness connector.

4. Check the continuity between fuel injector harness connector and ECM harness connector.

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


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

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

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

2.CHECK FUEL INJECTOR OUTPUT CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between fuel injector 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 3.

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

3.CHECK FUEL INJECTOR

Refer to EC-920, "Component Inspection".

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

NO >> Replace malfunctioning fuel injector.

4.CHECK INTERMITTENT INCIDENT

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

>> INSPECTION END

Component Inspection

1.CHECK FUEL INJECTOR

1. Turn ignition switch OFF.

2. Disconnect fuel injector harness connector.

3. Check resistance between fuel injector terminals as follows.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace malfunctioning fuel injector.

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