Nissan Cube. Manual - part 528

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VENTILATION, HEATER & AIR CONDITIONER

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SECTION 

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CONTENTS

HEATER & AIR CONDITIONING SYSTEM

BASIC INSPECTION  ....................................

3

DIAGNOSIS AND REPAIR WORKFLOW  ..........

3

Work Flow  .................................................................

3

SYSTEM DESCRIPTION  ..............................

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REFRIGERATION SYSTEM  ...............................

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System Diagram ........................................................

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System Description  ...................................................

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Component Parts Location ........................................

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Component Description .............................................

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SYMPTOM DIAGNOSIS  ...............................

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REFRIGERATION SYSTEM SYMPTOMS  ..........

8

Trouble Diagnosis For Unusual Pressure  .................

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Symptom Table  .........................................................

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NOISE .................................................................

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Symptom Table  .......................................................

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PRECAUTION ..............................................

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PRECAUTIONS ..................................................

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Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................

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Precautions for Removing of Battery Terminal  .......

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Precaution for Procedure without Cowl Top Cover 

....

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Precautions For Refrigerant System Service  ..........

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PREPARATION ...........................................

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PREPARATION ..................................................

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Special Service Tool  ...............................................

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Commercial Service Tool  ........................................

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Sealant or/and Lubricant  .........................................

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PERIODIC MAINTENANCE .........................

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DESCRIPTION ...................................................

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Service Equipment  ..................................................

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REFRIGERANT .................................................

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Description ...............................................................

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Leak Test .................................................................

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Recycle Refrigerant  .................................................

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Charge Refrigerant  ..................................................

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LUBRICANT ......................................................

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Description ...............................................................

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Inspection ................................................................

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Perform Lubricant Return Operation  .......................

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Lubricant Adjusting Procedure for Components 
Replacement Except Compressor ...........................

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Lubricant Adjusting Procedure for Compressor 
Replacement ...........................................................

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PERFORMANCE TEST  ....................................

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Inspection ................................................................

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REMOVAL AND INSTALLATION  ...............

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COMPRESSOR .................................................

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Exploded View .........................................................

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COMPRESSOR ..........................................................

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COMPRESSOR : Removal and Installation ............

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MAGNET CLUTCH  ....................................................

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MAGNET CLUTCH : Removal and Installation  .......

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Inspection ................................................................

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COOLER PIPE AND HOSE  ..............................

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Exploded View .........................................................

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HIGH-PRESSURE FLEXIBLE HOSE  ........................

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HIGH-PRESSURE FLEXIBLE HOSE : Removal 
and Installation  ........................................................

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LOW-PRESSURE FLEXIBLE HOSE .........................

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LOW-PRESSURE FLEXIBLE HOSE : Removal 
and Installation  ........................................................

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HIGH-PRESSURE PIPE  ............................................

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HIGH-PRESSURE PIPE : Removal and Installa-
tion ..........................................................................

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CONDENSER ....................................................

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Exploded View  ........................................................

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CONDENSER ............................................................

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CONDENSER : Removal and Installation  ..............

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LIQUID TANK ............................................................

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LIQUID TANK : Removal and Installation ...............

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REFRIGERANT PRESSURE SENSOR ....................

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REFRIGERANT PRESSURE SENSOR : Remov-
al and Installation ....................................................

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A/C UNIT ASSEMBLY .......................................

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Exploded View (Automatic Air Conditioner) ............

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Exploded View (Manual Air Conditioner)  ................

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A/C UNIT ASSEMBLY  ..............................................

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A/C UNIT ASSEMBLY : Removal and Installation ...

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EVAPORATOR ..........................................................

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EVAPORATOR : Removal and Installation .............

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HEATER CORE  .........................................................

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HEATER CORE : Removal and Installation ............

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EXPANSION VALVE  .........................................

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Exploded View  ........................................................

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Removal and Installation .........................................

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SERVICE DATA AND SPECIFICATIONS 
(SDS) ..........................................................

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SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

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Compressor ............................................................

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Lubricant .................................................................

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Refrigerant ..............................................................

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Engine Idling Speed ................................................

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Belt Tension  ............................................................

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DIAGNOSIS AND REPAIR WORKFLOW

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< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000009950322

OVERALL SEQUENCE

DETAILED FLOW

1.

INTERVIEW FOR MALFUNCTION

Interview the symptom to the customer.

NNIIA0143GB

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

>> GO TO 2.

2.

SYMPTOM CHECK

Check the symptom from the customer's information. Check that any symptom occurs other than the inter-
viewed symptom.

Insufficient cooling/heating>>GO TO 3.
Refrigerant leakage>>GO TO 6.
Noise >> GO TO 7.

3.

CONTROL SYSTEM DIAGNOSIS

Perform the system diagnosis for the A/C control system. Refer to 

HAC-5, "Work Flow"

 (AUTOMATIC AIR

CONDITIONER) or 

HAC-133, "Work Flow"

 (MANUAL AIR CONDITIONER).

Is A/C control system normal?

YES

>> GO TO 4.

NO

>> GO TO 8.

4.

PERFORMANCE TEST

Perform the performance test. Check the operation of each part. Refer to 

HA-29, "Inspection"

.

>> GO TO 5.

5.

TROUBLE DIAGNOSIS FOR UNUSUAL PRESSURE

Diagnose using a manifold gauge whenever system's high and/or low side pressure(s) is/are unusual. Specify
the malfunctioning part. Refer to 

HA-8, "Symptom Table"

.

Low refrigerant charge>>GO TO 6.
Except above>>GO TO 8.

6.

CHECK REFRIGERANT FOR LEAKAGES

Check refrigerant for leakages. Specify the malfunctioning part. Refer to 

HA-22, "Leak Test"

.

>> GO TO 8.

7.

TROUBLE DIAGNOSIS FOR NOISE

Perform trouble diagnosis for noise. Specify the malfunctioning part. Refer to 

HA-10, "Symptom Table"

.

>> GO TO 8.

8.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 9.

9.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.

Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 2.