Nissan Juke Service and Repair Manual : P0107, P0108 atmospheric pressure sensor

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for 5 seconds.

2. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-194, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK ATMOSPHERIC PRESSURE SENSOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect atmospheric pressure sensor harness connector.

3. Turn ignition switch ON.

4. Check the voltage between atmospheric pressure sensor harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 2.

2.CHECK SENSOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check harness connector for short to power and short to ground, between the following terminals.

*1: LHD models or RHD with CVT models


*1: LHD models or RHD with CVT models *2: RHD with M/T models

Is inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.

NO >> Repair or replace error-detected parts.

3.CHECK ATMOSPHERIC PRESSURE SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between atmospheric pressure sensor harness connector and ECM harness connector.

4. Also check harness for short to power.


4. Also check harness for short to power.

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

NO >> Repair or replace error-detected parts.

4.CHECK ATMOSPHERIC PRESSURE SENSOR INPUT SIGNAL CIRCUIT

1. Check the continuity between atmospheric pressure sensor harness connector and ECM harness connector.

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


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

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

NO >> Repair or replace error-detected parts.

5.CHECK ATMOSPHERIC PRESSURE SENSOR

Check the atmospheric pressure sensor. Refer to EC-196, "Component Inspection".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".

NO >> Replace atmospheric pressure sensor. Refer to EC-447, "Removal and Installation".

Component Inspection

1.CHECK ATMOSPHERIC PRESSURE SENSOR

1. Turn ignition switch ON.

2. Check the voltage between ECM harness connector terminals as follows.

NOTE:


NOTE

:
Because the sensor is absolute pressure sensor, output value may differ depending on atmospheric pressure and altitude.

3. Measure the atmospheric pressure.

NOTE

:
As the atmospheric pressure described on the synoptic chart is the value at sea level, compensate the pressure with the following chart.

4. Check the atmospheric pressure sensor value corresponding to the


4. Check the atmospheric pressure sensor value corresponding to the atmospheric pressure.


Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace atmospheric pressure sensor. Refer to EC-447, "Removal and Installation".

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