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