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

HAC

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B

HAC

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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 . . . . . . . . . . . . . . . .

22

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

22

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 . . . . . . . . . . . . .

44

MODE DOOR CONTROL SYSTEM . . . . ..

45

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

45

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

45

AIR MIX DOOR CONTROL SYSTEM . . . ...

47

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

47

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 . . . .

50

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

50

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

50

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 . . . . . . . . . . . ...

53

MAGNET CLUTCH CONTROL SYSTEM . . .

55

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

55

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

55

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

57

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

57

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

57

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

62

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

63

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

63

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

68

COMPONENT DIAGNOSIS . . . . . ...

70

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

70

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

70

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

70

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

70

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

73

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

73

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 . . . . . . . .

73

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

74

HAC-3

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HAC

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

74

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

75

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 . . . . . . . . . . . ...

78

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

80

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

80

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 . . . . . . . .

84

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

84

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

86

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

88

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

88

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

88

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

88

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

91

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

91

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

91

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

91

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

92

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

94

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

94

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

94

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

95

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

96

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 .

142

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

142

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

142

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

143

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

143