Infiniti G35 (V35) Sedan. Manual - part 757

HA-62

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Compressor

INFOID:0000000000959892

Lubricant

INFOID:0000000000959893

Refrigerant

INFOID:0000000000959894

Engine Idling Speed

INFOID:0000000000959895

Refer to 

EC-16, "IDLE SPEED : Description"

.

Belt Tension

INFOID:0000000000959896

Refer to 

EM-12, "Tension Adjustment"

.

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)

Model

VALEO THERMAL SYSTEMS JAPAN make 

DCS-17EC

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

C

D

E

F

G

H

J

K

L

M

SECTION 

HAC

A

B

HAC

N

O

P

CONTENTS

HEATER & AIR CONDITIONING CONTROL SYSTEM

AUTOMATIC AIR CONDITIONER

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

4

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

4

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

4

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

5

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

5

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

5

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

9

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

9

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

14

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

14

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

14

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

14

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

14

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

15

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

17

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

18

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

18

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

19

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

19

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

21

AUTOMATIC AIR CONDITIONER SYSTEM  ....

23

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

23

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

23

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

23

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

29

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

31

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

32

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

32

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

32

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

39

HAC-2

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

41

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

43

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

43

DIAGNOSIS SYSTEM (AUTO AMP.)  ................

44

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

44

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

44

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

49

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

50

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

50

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

55

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

57

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

57

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

59

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

59

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

59

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

60

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

60

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

62

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

62

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

64

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

64

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

64

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

65

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

65

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

68

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

68

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

69

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

69

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

69

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

69

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

69

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

72

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

72

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

72

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

72

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

72

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

74

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 ....................................

80

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

80

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

80

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

80

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

83

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

83

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

83

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

83

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

83

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

86

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

86

HAC-3

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

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

86

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

86

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

86

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

89

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

90

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

90

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

90

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

90

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

92

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

93

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

93

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

93

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

93

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

94

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

96

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

96

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

96

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

97

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

98

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

99

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

99

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

99

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

99

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

100

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

102

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

102

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

102

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

102

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

103

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

105

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

105

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

105

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

106

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

107

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

107

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

107

Wiring Diagram — AIR CONDITIONER CON-
TROL SYSTEM — .................................................

109

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

115

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

117

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

117

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

117

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

119

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

119

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

119

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

122

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

122

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

122

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

124

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

124

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

124

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

126

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

126

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

126

MEMORY FUNCTION DOES NOT OPERATE .

127

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

127

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

127

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

128

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

128

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

128

Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect  .................................

128

Precaution for Procedure without Cowl Top Cover ..

128

Precautions For Xenon Headlamp Service  ...........

129

Working with HFC-134a (R-134a)  .........................

129

General Refrigerant Precaution .............................

130

Refrigerant Connection ..........................................

130

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

134

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

137

General Precautions ..............................................

137

FLUORESCENT LEAK DETECTOR  ..............

138

General Precautions ..............................................

138