Infiniti EX35. Manual - part 901

SERVICE DATA AND SPECIFICATIONS (SDS)

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< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Compressor

INFOID:0000000003545499

Lubricant

INFOID:0000000003545500

Refrigerant

INFOID:0000000003545501

Engine Idling Speed

INFOID:0000000003545502

Refer to 

EC-543, "Idle Speed"

.

Belt Tension

INFOID:0000000003545503

Refer to 

EM-139, "Drive Belt"

.

Model

VALEO THERMAL SYSTEMS JAPAN make 

DCS-17EC

Type

Variable displacement swash plate

Displacement

cm

3

 (cu in)/rev

Max.

171 (10.4)

Cylinder bore 

×

 stroke (Max.)

mm (in.)

32 (1.26) 

×

 30.5 (1.20)

Direction of rotation

Clockwise (viewed from clutch)

Drive belt

Poly V

Disc to pulley clearance

Standard

0.3 - 0.6 mm (0.012 - 0.024 in)

Name

NISSAN A/C System Oil Type S (DH-PS)

Capacity

m

 (US fl oz, lmp fl oz)

Total in system

150 (5.03, 5.3)

Compressor (service part) charging 
amount

150 (5.03, 5.3)

Type

HFC-134a (R-134a)

Capacity
kg (lb)

0.55 (1.21)

HAC-1

VENTILATION, HEATER & AIR CONDITIONER

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SECTION 

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CONTENTS

HEATER & AIR CONDITIONING CONTROL SYSTEM

AUTOMATIC AIR CONDITIONER

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

5

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

5

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

5

INSPECTION AND ADJUSTMENT .....................

6

WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ......

6

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Description & Inspection ..........................

6

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Temperature Setting Trimmer  .................

8

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Foot Position Setting Trimmer  .................

9

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Inlet Port Memory Function  ...................

10

WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM  ...........

11

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Description & Inspection  .......................................

11

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Temperature Setting Trimmer  ...............................

13

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Foot Position Setting Trimmer ...............................

14

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Inlet Port Memory Function  ...................................

15

FUNCTION DIAGNOSIS ..............................

17

COMPRESSOR CONTROL FUNCTION ............

17

WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ....

17

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Description .............................................

17

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Fail-Safe  ................................................

17

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Part Location  ......................

18

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component’s role ...................................

20

WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM  ...........

21

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Description .............................................................

21

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Fail-Safe  ................................................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component Part Location ......................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component’s role  ..................................................

24

AUTOMATIC AIR CONDITIONER SYSTEM  ....

26

WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ....

26

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : System Diagram  ....................................

26

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : System Description ................................

26

HAC-2

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Part Location  .....................

31

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Description ........................

33

WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM ...........

34

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: System Diagram  ...................................................

34

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: System Description ...............................................

35

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component Part Location  .....................................

40

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component Description  ........................................

42

CAN COMMUNICATION SYSTEM  ...................

44

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

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MODE DOOR CONTROL SYSTEM  ..................

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

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

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AIR MIX DOOR CONTROL SYSTEM  ...............

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WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ...

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WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : System Diagram ...................................

47

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : System Description ...............................

47

WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM ...........

48

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: System Diagram  ...................................................

48

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: System Description ...............................................

48

INTAKE DOOR CONTROL SYSTEM ................

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

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

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BLOWER MOTOR CONTROL SYSTEM  ..........

52

WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ...

52

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : System Diagram ...................................

52

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : System Description ...............................

52

WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM  ...........

53

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: System Diagram  ...................................................

53

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: System Description  ...............................................

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MAGNET CLUTCH CONTROL SYSTEM  .........

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

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

55

DIAGNOSIS SYSTEM (UNIFIED METER & A/
C AMP.)  .............................................................

57

WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ....

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WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Diagnosis Description ...........................

57

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : CONSULT-III Function ..........................

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WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM  ...........

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Diagnosis Description  ...........................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: CONSULT-III Function ..........................................

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COMPONENT DIAGNOSIS  .......................

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

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

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

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

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AIR MIX DOOR MOTOR  ...................................

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WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ....

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WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Description  ............................................

73

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Function Check ................

73

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Diagnosis Procedure .............................

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WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM  ...........

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HAC-3

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Description  ............................................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component Function Check  ................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Diagnosis Procedure .............................................

75

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

78

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

78

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

78

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

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

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WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ....

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WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Description  ............................................

80

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Function Check  ................

80

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Diagnosis Procedure  .............................

81

WITHOUT LEFT AND RIGHT VENTILATION 
TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Inspection  ..........................

83

WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM  ...........

83

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Description  ............................................................

83

WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component Function Check  ................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Diagnosis Procedure .............................................

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WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM 
: Component Inspection  ..........................................

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

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

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

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

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AMBIENT SENSOR  ...........................................

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

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

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

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

92

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

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

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

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

95

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

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SUNLOAD SENSOR .........................................

97

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

97

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

97

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

97

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

98

INTAKE SENSOR  ...........................................

100

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

100

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

100

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

100

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

101

POWER SUPPLY AND GROUND CIRCUIT 
FOR AUTO AMP.  ............................................

103

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

103

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

104

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

104

ECU DIAGNOSIS .......................................

105

ECM .................................................................

105

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

105

AUTO AMP. .....................................................

122

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

122

Wiring Diagram - AIR CONDITIONER CONTROL 
SYSTEM - ..............................................................

124

Fail-Safe ................................................................

130

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

132

AIR CONDITIONER CONTROL ......................

132

Diagnosis Chart By Symptom ................................

132

INSUFFICIENT COOLING  ..............................

134

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

134

Inspection procedure  .............................................

134

INSUFFICIENT HEATING ...............................

137

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

137

Inspection procedure  .............................................

137

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

139

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

139

Inspection procedure  .............................................

139

SELF-DIAGNOSIS CANNOT BE PER-
FORMED .........................................................

141

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

141

Inspection procedure  .............................................

141

MEMORY FUNCTION DOES NOT OPERATE .

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

142

Inspection procedure  .............................................

142

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

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

143