Nissan Juke Service and Repair Manual : Insufficient cooling

Description

Symptom
• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)

Diagnosis Procedure

NOTE

:
Perform self-diagnoses with CONSULT-III before performing symptom diagnosis. If any DTC is detected, perform the corresponding diagnosis.

1.CHECK MAGNET CLUTCH OPERATION

1. Turn ignition switch ON.

2. Operate fan control dial.

3. Press A/C switch.

4. Check that A/C indicator turns ON. Check visually and by sound that compressor operates.

5. Press A/C switch again.

6. Check that A/C indicator turns OFF. Check that compressor stops.

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

NO >> Perform diagnosis of “COMPRESSOR DOSE NOT OPERATE” in “SYMPTOM DIAGNOSIS”.

Refer to HAC-89, "Diagnosis Procedure".

2.CHECK DRIVE BELT

Check tension of drive belt. Refer to EM-20, "Checking".

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

NO >> Adjust or replace drive belt depending on the inspection results.

3.CHECK REFRIGERANT CYCLE PRESSURE

Connect recovery/recycling recharging equipment to the vehicle and perform pressure inspection with gauge.

Refer to HA-83, "Symptom Table".

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

NO >> Repair or replace parts depending on the inspection results.

4.CHECK AIR LEAKAGE FROM EACH DUCT

Check duct and nozzle, etc. of the air conditioning system for leakage.

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

NO >> Repair or replace parts depending on the inspection results.

5.CHECK AMBIENT TEMPERATURE DISPLAY

Check that there is not much difference between actual ambient temperature and indicated temperature on information display in combination meter.

Is the inspection result normal? YES >> GO TO 6.

NO >> Perform diagnosis for the A/C auto amp. connection recognition signal circuit. Refer to MWI-62, "Diagnosis Procedure".

6.CHECK SETTING OF TEMPERATURE SETTING TRIMMER

1. Check setting value of temperature setting trimmer. Refer to HAC-48, "Temperature Setting Trimmer".

2. Check that temperature setting trimmer is set to “+ direction”.

NOTE

:
The control temperature can be set with the setting of the temperature setting trimmer.

3. Set difference between the set temperature and control temperature to “0”.

Is inspection result normal? YES >> INSPECTION END

NO >> Replace A/C auto amp. Refer to HAC-91, "Removal and Installation".

    Automatic air conditioner system
    Symptom Table NOTE: Perform self-diagnoses with CONSULT-III before performing the symptom diagnosis. If any DTC is detected, perform the corresponding diagnosi ...

    Insufficient heating
    Description Symptom • Insufficient heating • No warm air comes out. (Air flow volume is normal.) Diagnosis Procedure NOTE: Perform self-diagnoses with CONSULT-III before performing symptom diagn ...

    Other materials:

    Diagnosis Procedure
    WARNING: • Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3 minutes. (To discharge backup capacitor.) • Never use unspecified tester or other measuring device. 1.CHECK HARNESS CONNECTOR Check the harness connector. Is the inspection res ...

    Trip computer
    The switch for the trip computer is located on the meter panel. When the ignition switch is placed in the ON position, modes of the trip computer can be selected by pushing the trip computer mode switchA . Each time the trip computer mode switchA is pushed, the display will change as follows ...

    Hazard function
    Component Function Check 1.CHECK FUNCTION 1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III. 2. Select “FLASHER” in “ACTIVE TEST” mode. 3. Check that the function operates normally according to the following conditions. Is the inspection result normal? YES >> Hazard warning lamp ...