Nissan Juke Service and Repair Manual : P1205 exhaust fuel injector

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure


Diagnosis Procedure

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

1. Turn ignition switch OFF.

2. Disconnect exhaust fuel injector harness connector.

3. Turn ignition switch ON.

4. Check the voltage between exhaust fuel injector harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 2.

2.DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E8, F1 • Harness for open or short between IPDM E/R and exhaust fuel injector

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

3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between exhaust fuel injector 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 EXHAUST FUEL INJECTOR

Refer to EC-983, "Component Inspection".

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

NO >> Replace exhaust fuel injector.

5.CHECK INTERMITTENT INCIDENT

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

>> INSPECTION END

Component Inspection

1.CHECK EXHAUST FUEL INJECTOR

1. Turn ignition switch OFF.

2. Disconnect exhaust fuel injector harness connector.

3. Check resistance between exhaust fuel injector terminals as follows.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace exhaust fuel injector.

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