Nissan Juke Service and Repair Manual : P1544 EGT sensor 2

DTC Logic

DTC DETECTION LOGIC

NOTE:


NOTE

:
If DTC P1544 is displayed with DTC P0115, first perform trouble diagnosis for DTC P0115. Refer to EC-907, "DTC 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 Inspection".

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

NO >> Repair or replace ground connection.

2.CHECK EXHAUST GAS TEMPERATURE SENSOR 2 POWER SUPPLY CIRCUIT

1. Disconnect exhaust gas temperature sensor 2 harness connector.

2. Turn ignition switch ON.

3. Check the voltage between exhaust gas temperature sensor 2 harness 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 EXHAUST GAS TEMPERATURE SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between exhaust gas temperature sensor 2 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 INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

Is the inspection result normal? YES >> Replace exhaust gas temperature sensor 2.

NO >> Repair or replace.

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