Nissan Juke Service and Repair Manual : B2578, B2579 In-vehicle sensor

DTC Logic

DTC DETECTION LOGIC

NOTE

:
If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to HAC- 51, "DTC Logic".

If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. HAC-52, "DTC Logic".

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-III

1. Turn ignition switch ON.

2. Select Self Diagnostic Result mode of HVAC using CONSULT-III.

3. Check DTC.

Is DTC detected? YES >> Refer to HAC-53, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK IN-VEHICLE SENSOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect in-vehicle sensor connector.

3. Turn ignition switch ON.

4. Check voltage between in-vehicle sensor harness connector and ground.

Is the inspection result normal?


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

NO >> GO TO 4.

2.CHECK IN-VEHICLE SENSOR GROUND CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect A/C auto amp. connector.

3. Check continuity between in-vehicle sensor harness connector and A/C auto amp harness connector.

Is the inspection result normal?


Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair harness or connector.

3.CHECK IN-VEHICLE SENSOR

Check in-vehicle sensor. Refer to HAC-57, "Component Inspection".

Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-91, "Removal and Installation".

NO >> Replace in-vehicle sensor. Refer to HAC-93, "Removal and Installation".

4.CHECK IN-VEHICLE SENSOR POWER SUPPLY CIRCUIT FOR OPEN

1. Turn ignition switch OFF.

2. Disconnect A/C auto amp. connector.

3. Check continuity between in-vehicle sensor harness connector and A/C auto amp. harness connector.

Is the inspection result normal?


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

NO >> Repair harness or connector.

5.CHECK IN-VEHICLE SENSOR POWER SUPPLY CIRCUIT FOR SHORT

Check continuity between in-vehicle sensor harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-91, "Removal and Installation".

NO >> Repair harness or connector.

Component Inspection

1.CHECK IN-VEHICLE SENSOR

1. Remove in-vehicle sensor. Refer to HAC-93, "Removal and Installation".

2. Check resistance between in-vehicle sensor terminals. Refer to applicable table for the normal value.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace in-vehicle sensor. Refer to HAC-93, "Removal and Installation".

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