Nissan X-Trail 32. Manual - part 1381

 

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Nissan X-Trail 32. Manual - part 1381

 

 

A/C UNIT ASSEMBLY

HA-183

< REMOVAL AND INSTALLATION >

[R9M (FOR RUSSIA)]

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Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to 

HA-

159, "Perform Lubricant Return Operation"

.

REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to 

HA-157,

"Recycle Refrigerant"

.

2.

Remove mounting bolt, and then disconnect low-pressure pipe and high-pressure pipe 3 from expansion
valve.

CAUTION:

Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl
tape to avoid the entry of air.

3.

Remove mounting bolts,

 and then remove expansion valve.

CAUTION:

Cap or wrap the joint of the evaporator and expansion valve
with suitable material such as vinyl tape to avoid the entry
of air.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to 

HA-155, "Leak Test"

.

JMIIA3345ZZ

HA-184

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[R9M (FOR RUSSIA)]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Compressor

INFOID:0000000011006187

Lubricant

INFOID:0000000011006188

Refrigerant

INFOID:0000000011006189

Engine Idling Speed

INFOID:0000000011006190

Refer to 

EC-1232, "Idle Speed"

.

Belt Tension

INFOID:0000000011006191

Refer to 

EM-414, "Drive Belts"

.

Model

DENSO make 

6SBH14

Type

Variable displacement swash plate

Displacement

cm

3

 (cu in)/rev

Maximum

140 (8.6)

Direction of rotation

Clockwise (viewed from clutch)

Drive belt

Poly V

Disc to pulley clearance
mm (in.)

Standard

0.21 – 0.55 (0.008 – 0.022)

Name

ND-OIL8

Capacity

m

 (lmp fl oz)

Total in system

110 (3.9)

Compressor (service part) charging 
amount

110 (3.9)

Type

HFC-134a (R-134a)

Capacity
kg (lb)

0.5 (1.1)

HAC-1

VENTILATION, HEATER & AIR CONDITIONER

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SECTION 

HAC

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CONTENTS

HEATER & AIR CONDITIONING CONTROL SYSTEM

AUTOMATIC AIR CONDITIONING

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

6

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

6

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

6

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

6

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

8

COMPONENT PARTS  ........................................

8

AUTOMATIC AIR CONDITIONING SYSTEM  .............

8

AUTOMATIC AIR CONDITIONING SYSTEM : 
Component Parts Location ......................................
..

8

PTC HEATER CONTROL SYSTEM ............................

9

PTC HEATER CONTROL SYSTEM : Component 
Parts Location  .........................................................
..

9

STOP/START SYSTEM .............................................

12

STOP/START SYSTEM : Component Parts Loca-
tion ..........................................................................

13

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

14

A/C UNIT ASSEMBLY : Aspirator ...........................

14

A/C UNIT ASSEMBLY : Intake Sensor  ...................

14

A/C UNIT ASSEMBLY : Air Mix Door Motor (Driver 
Side) ........................................................................

14

A/C UNIT ASSEMBLY : Air Mix Door Motor (Pas-
senger Side) ............................................................

15

A/C UNIT ASSEMBLY : Mode Door Motor  .............

15

A/C UNIT ASSEMBLY : Intake Door Motor .............

16

A/C UNIT ASSEMBLY : Blower Motor  ....................

16

A/C UNIT ASSEMBLY : Power Transistor ..............

17

A/C UNIT ASSEMBLY : PTC Heater  ......................

17

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

17

COMPRESSOR : Magnet Clutch  ............................

17

COMPRESSOR : ECV (Electrical Control Valve) ....

18

A/C Control ..............................................................

18

A/C Auto Amp. .........................................................

18

Ambient Sensor  .......................................................

19

In-vehicle Sensor .....................................................

19

Sunload Sensor  .......................................................

19

Refrigerant Pressure Sensor  ...................................

19

SYSTEM ............................................................

21

AUTOMATIC AIR CONDITIONING SYSTEM  ...........

21

AUTOMATIC AIR CONDITIONING SYSTEM : 
System Description ..................................................

21

AUTOMATIC AIR CONDITIONING SYSTEM : 
Temperature Control  ...............................................

22

AUTOMATIC AIR CONDITIONING SYSTEM : Air 
Outlet Control  ..........................................................

23

AUTOMATIC AIR CONDITIONING SYSTEM : Air 
Flow Control  ............................................................

23

AUTOMATIC AIR CONDITIONING SYSTEM : Air 
Inlet Control  .............................................................

24

AUTOMATIC AIR CONDITIONING SYSTEM : 
Compressor Control  ................................................

24

AUTOMATIC AIR CONDITIONING SYSTEM : 
Door Control  ............................................................

25

AUTOMATIC AIR CONDITIONING SYSTEM : 
Cooling Fan Control .................................................

28

AUTOMATIC AIR CONDITIONING SYSTEM : 
Door Motor Starting Position Reset Control  ............

29

AUTOMATIC AIR CONDITIONING SYSTEM : 
Circuit Diagram ........................................................

30

AUTOMATIC AIR CONDITIONING SYSTEM : 
Fail-safe ...................................................................

33

PTC HEATER CONTROL SYSTEM  ..........................

33

PTC HEATER CONTROL SYSTEM : System De-
scription ...................................................................

34

PTC HEATER CONTROL SYSTEM : Circuit Dia-
gram ........................................................................

35

STOP/START SYSTEM  .............................................

35

STOP/START SYSTEM : System Description  ........

36

STOP/START SYSTEM : Circuit Diagram  ..............

38

HAC-2

OPERATION ......................................................

40

Switch Name and Function .....................................

40

DIAGNOSIS SYSTEM (A/C AUTO AMP.) .........

45

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

45

CONSULT Function ................................................

45

DIAGNOSIS SYSTEM (A/C CONTROL)  ...........

48

Diagnosis Description  .............................................

48

DIAGNOSIS SYSTEM (BCM)  ............................

49

COMMON ITEM  ........................................................

49

COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM)  ...................................................
.

49

AIR CONDITIONER  ..................................................

50

AIR CONDITIONER : CONSULT Function (BCM - 
AIR CONDITIONER)  .............................................
.

50

ECU DIAGNOSIS INFORMATION ..............

51

A/C AUTO AMP.  ................................................

51

Reference Value  .....................................................

51

Fail-safe ..................................................................

55

DTC Index  ..............................................................

56

BCM, ECM, IPDM E/R  .......................................

57

List of ECU Reference  ............................................

57

WIRING DIAGRAM  .....................................

58

AUTOMATIC AIR CONDITIONING SYSTEM ...

58

Wiring Diagram  .......................................................

58

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

69

DIAGNOSIS AND REPAIR WORK FLOW  ........

69

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

69

OPERATION INSPECTION ...............................

72

Work Procedure ......................................................

72

SYSTEM SETTING ............................................

74

Temperature Setting Trimmer  ................................

74

Inlet Port Memory Function (REC)  .........................

74

Inlet Port Memory Function (FRE)  ..........................

75

Setting of Target Evaporator Temperature Upper 
Limit Value  .............................................................
.

75

DOOR MOTOR STARTING POSITION RE-
SET ....................................................................

77

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

77

Work Procedure ......................................................

77

DTC/CIRCUIT DIAGNOSIS .........................

78

U1000 CAN COMM CIRCUIT  ............................

78

DTC Description  .....................................................

78

Diagnosis Procedure  ..............................................

78

B24A0 A/C AUTO AMP.  ....................................

79

DTC Description  .....................................................

79

Diagnosis Procedure ...............................................

79

B24A1 A/C AUTO AMP. POWER SUPPLY ......

80

DTC Description ......................................................

80

Diagnosis Procedure ...............................................

80

B24A4 INTAKE SENSOR  .................................

81

DTC Description ......................................................

81

Diagnosis Procedure ...............................................

81

Component Inspection  ............................................

83

B24A6 IN-VEHICLE SENSOR  ..........................

84

DTC Description ......................................................

84

Diagnosis Procedure ...............................................

84

Component Inspection  ............................................

86

B24A9 SUNLOAD SENSOR  .............................

87

DTC Description ......................................................

87

Diagnosis Procedure ...............................................

87

B24B4 A/C CONTROL  ......................................

90

DTC Description ......................................................

90

Diagnosis Procedure ...............................................

90

B24B7 INTAKE DOOR MOTOR  .......................

91

DTC Description ......................................................

91

Diagnosis Procedure ...............................................

91

Component Inspection  ............................................

93

B24B9 MODE DOOR MOTOR  ..........................

94

DTC Description ......................................................

94

Diagnosis Procedure ...............................................

94

Component Inspection  ............................................

96

B24BB LEFT AIR MIX DOOR MOTOR .............

97

DTC Description ......................................................

97

Diagnosis Procedure ...............................................

97

Component Inspection  ............................................

99

B24BD RIGHT AIR MIX DOOR MOTOR  .........

100

DTC Description ....................................................

100

Diagnosis Procedure .............................................

100

Component Inspection  ..........................................

102

B24D4 A/C CONTROL COMMUNICATION .....

103

DTC Description ....................................................

103

Diagnosis Procedure .............................................

103

POWER SUPPLY AND GROUND CIRCUIT  ....

105

A/C AUTO AMP. ......................................................

105

A/C AUTO AMP. : Diagnosis Procedure  ...............

105

A/C CONTROL  ........................................................

105

A/C CONTROL : Diagnosis Procedure  .................

105

BLOWER MOTOR ............................................

107

Diagnosis Procedure .............................................

107

Component Inspection (Blower Motor)  .................

109

Component Inspection (Blower Relay)  .................

110

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

111

Component Function Check  .................................

111

 

 

 

 

 

 

 

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