Nissan Teana J32. Instruction — part 658

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

WITHOUT 7 INCH DISPLAY

BASIC INSPECTION . . . . . . . . .

6

DIAGNOSIS AND REPAIR WORKFLOW . . ..

6

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

6

INSPECTION AND ADJUSTMENT . . . . . .

8

Description & Inspection . . . . . . . . . . ...

8

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

10

Foot Position Setting Trimmer . . . . . . . . .

10

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

11

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

11

FUNCTION DIAGNOSIS . . . . . . . ..

12

COMPRESSOR CONTROL FUNCTION . . .

12

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

12

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

13

Component Part Location . . . . . . . . . ...

13

Component’s Role . . . . . . . . . . . . ...

15

AUTOMATIC AIR CONDITIONER SYSTEM . .

17

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

17

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

17

Component Part Location . . . . . . . . . ...

24

Component Description . . . . . . . . . . ...

26

MODE DOOR CONTROL SYSTEM . . . . ...

28

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

28

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

28

AIR MIX DOOR CONTROL SYSTEM . . . .

30

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

30

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

30

INTAKE DOOR CONTROL SYSTEM . . . .

32

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

32

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

32

BLOWER MOTOR CONTROL SYSTEM . . ...

34

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

34

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

34

MAGNET CLUTCH CONTROL SYSTEM . . .

36

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

36

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

36

CAN COMMUNICATION SYSTEM . . . . ...

37

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

37

DIAGNOSIS SYSTEM (HVAC) . . . . . . .

38

CONSULT-III Function . . . . . . . . . . .

38

COMPONENT DIAGNOSIS . . . . . . .

42

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

42

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

42

DTC Logic . . . . . . . . . . . . . . . .

42

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

42

U1010 CONTROL UNIT (CAN) . . . . . . .

43

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

43

DTC Logic . . . . . . . . . . . . . . . .

43

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

43

B257B, B257C AMBIENT SENSOR . . . . .

44

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

44

DTC Logic . . . . . . . . . . . . . . . .

44

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

45

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

46

B2578, B2579 IN-VEHICLE SENSOR . . . ..

47

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

47

DTC Logic . . . . . . . . . . . . . . . .

47

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

48

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

49

B2581, B2582 INTAKE SENSOR . . . . . .

50

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

50

DTC Logic . . . . . . . . . . . . . . . .

50

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

50

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

51

B2630, B2631 SUNLOAD SENSOR . . . . .

53

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

53

HAC-2

DTC Logic . . . . . . . . . . . . . . . ...

53

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

54

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

55

B2632, B2633 AIR MIX DOOR MOTOR
(DRIVER SIDE) . . . . . . . . . . . . ..

56

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

56

DTC Logic . . . . . . . . . . . . . . . ...

56

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

57

B2634, B2635 AIR MIX DOOR MOTOR (PAS-
SENGER SIDE) . . . . . . . . . . . . ..

58

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

58

DTC Logic . . . . . . . . . . . . . . . ...

58

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

59

B2636, B2637, B2638, B2639, B2654, B2655
MODE DOOR MOTOR . . . . . . . . . ..

60

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

60

DTC Logic . . . . . . . . . . . . . . . ...

60

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

61

B263D B263E, B263F, B2656 INTAKE DOOR
MOTOR . . . . . . . . . . . . . . . ..

63

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

63

DTC Logic . . . . . . . . . . . . . . . ...

63

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

64

POWER SUPPLY AND GROUND CIRCUIT . .

65

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

65

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

65

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

65

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

65

A/C DISPLAY . . . . . . . . . . . . . . ....

66

A/C DISPLAY : Diagnosis Procedure . . . . . .

66

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

67

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

67

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

67

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

67

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

68

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

68

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

68

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

68

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

71

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

72

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

72

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

72

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

72

A/C CONTROL SIGNAL CIRCUIT . . . . .

74

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

74

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

75

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

75

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

75

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

77

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

84

DTC Inspection Priority Chart . . . . . . . ...

85

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

85

SYMPTOM DIAGNOSIS . . . . . . .

87

AIR CONDITIONER CONTROL . . . . . .

87

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

87

INSUFFICIENT COOLING . . . . . . . . .

88

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

88

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

88

INSUFFICIENT HEATING . . . . . . . . .

91

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

91

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

91

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

94

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

94

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

94

MEMORY FUNCTION DOES NOT OPERATE ...

96

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

96

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

96

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

97

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

97

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

97

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

97

Precaution for Procedure without Cowl Top Cover ...

98

Precautions For Xenon Headlamp Service . . . .

98

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

98

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

99

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

99

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

101

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

104

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

104

FLUORESCENT LEAK DETECTOR . . . .

105

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

105

WITH 7 INCH DISPLAY

BASIC INSPECTION . . . . . . . . .

106

DIAGNOSIS AND REPAIR WORKFLOW . .

106

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

106

INSPECTION AND ADJUSTMENT . . . . ..

108

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM . . . . . . . . . . . . . . . . ..

108

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Description & Inspection . . . . . .

108

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Temperature Setting Trimmer . . . .

110

HAC-3

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Foot Position Setting Trimmer . . . .

110

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Inlet Port Memory Function (FRE) . ...

111

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Inlet Port Memory Function (REC) . ..

111

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . ..

111

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Description & Inspection . . . . . . . .

112

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Temperature Setting Trimmer . . . . .

114

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Foot Position Setting Trimmer . . . . .

114

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Inlet Port Memory Function (FRE) . . . ..

115

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Inlet Port Memory Function (REC) . . . .

115

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Gas Sensor Sensitivity Adjustment Func-
tion (With Intelligent Air Conditioner System) . .

116

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Clean Switch Interlocking Movement
Change Function (With Intelligent Air Conditioner
System) . . . . . . . . . . . . . . . . .

116

FUNCTION DIAGNOSIS . . . . . . .

117

COMPRESSOR CONTROL FUNCTION . . ..

117

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

117

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

118

Component Part Location . . . . . . . . . .

118

Component’s Role . . . . . . . . . . . . .

120

AUTOMATIC AIR CONDITIONER SYSTEM ...

122

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM . . . . . . . . . . . . . . . . ..

122

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Diagram . . . . . . . . ..

122

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Description . . . . . . . .

122

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Component Part Location . . . . .

129

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Component Description . . . . . ...

132

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . ..

132

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Diagram . . . . . . . . . . .

132

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Description . . . . . . . . . .

133

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Part Location . . . . . . ...

138

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Description . . . . . . . ..

141

PLASMACLUSTER SYSTEM . . . . . . ..

142

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . ..

142

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Diagram . . . . . . . . . . .

142

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Description . . . . . . . . . .

142

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Part Location . . . . . . ...

143

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Description . . . . . . . ..

144

MODE DOOR CONTROL SYSTEM . . . .

145

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

145

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

145

AIR MIX DOOR CONTROL SYSTEM . . . .

147

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

147

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

147

INTAKE DOOR CONTROL SYSTEM . . . .

149

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM . . . . . . . . . . . . . . . . ...

149

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Diagram . . . . . . . . ..

149

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : System Description . . . . . . . ..

149

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . ..

150

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Diagram . . . . . . . . . . .

150

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : System Description . . . . . . . . . .

150

BLOWER MOTOR CONTROL SYSTEM . .

152

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

152

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

152

MAGNET CLUTCH CONTROL SYSTEM . ...

154

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

154

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

154

CAN COMMUNICATION SYSTEM . . . . .

155

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

155

DIAGNOSIS SYSTEM (HVAC) . . . . . ...

156

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM . . . . . . . . . . . . . . . . ...

156

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : CONSULT-III Function . . . . . . .

156

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . ..

159

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : CONSULT-III Function . . . . . . . .

159

COMPONENT DIAGNOSIS . . . . . ...

164

U1000 CAN COMM CIRCUIT . . . . . . .

164

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

164

HAC-4

DTC Logic . . . . . . . . . . . . . . . ..

164

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

164

U1010 CONTROL UNIT (CAN) . . . . . ...

165

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

165

DTC Logic . . . . . . . . . . . . . . . ..

165

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

165

B257B, B257C AMBIENT SENSOR . . . ...

166

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

166

DTC Logic . . . . . . . . . . . . . . . ..

166

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

167

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

168

B2578, B2579 IN-VEHICLE SENSOR . . . .

169

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

169

DTC Logic . . . . . . . . . . . . . . . ..

169

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

170

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

171

B2581, B2582 INTAKE SENSOR . . . . .

172

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

172

DTC Logic . . . . . . . . . . . . . . . ..

172

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

172

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

173

B262A, B262B, B2657, B2658 GAS SENSOR .

175

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . ..

175

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Description . . . . . . . . . . . . ..

175

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : DTC Logic . . . . . . . . . . . . ...

175

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Diagnosis Procedure . . . . . . . . ...

176

B2630, B2631 SUNLOAD SENSOR . . . ...

178

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

178

DTC Logic . . . . . . . . . . . . . . . ..

178

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

179

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

180

B2632, B2633 AIR MIX DOOR MOTOR
(DRIVER SIDE) . . . . . . . . . . . .

181

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

181

DTC Logic . . . . . . . . . . . . . . . ..

181

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

182

B2634, B2635 AIR MIX DOOR MOTOR (PAS-
SENGER SIDE) . . . . . . . . . . . .

183

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

183

DTC Logic . . . . . . . . . . . . . . . ..

183

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

184

B2636, B2637, B2638, B2639, B2654, B2655
MODE DOOR MOTOR . . . . . . . . .

185

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

185

DTC Logic . . . . . . . . . . . . . . . ..

185

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

186

B263D B263E, B263F, B2656 INTAKE DOOR
MOTOR . . . . . . . . . . . . . . . .

188

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

188

DTC Logic . . . . . . . . . . . . . . . .

188

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

189

POWER SUPPLY AND GROUND CIRCUIT .

191

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

191

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

191

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

192

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

192

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

192

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

192

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

193

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

193

Component Function Check . . . . . . . .

193

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

193

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

196

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

197

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

197

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

197

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

197

IONIZER . . . . . . . . . . . . . . .

199

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . .

199

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Description . . . . . . . . . . . . .

199

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Component Function Check . . . . . ...

199

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Diagnosis Procedure . . . . . . . . ..

199

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

202

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

202

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM . . . . . . . . . . . . . . . . ..

202

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Reference Value . . . . . . . . .

202

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Wiring Diagram - AIR CONDITIONER
CONTROL SYSTEM - . . . . . . . . . . ..

203

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : Fail-Safe . . . . . . . . . . . ..

211

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : DTC Inspection Priority Chart . . ...

212

WITHOUT INTELLIGENT AIR CONDITIONER
SYSTEM : DTC Index . . . . . . . . . . ...

212

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM . . . . . . . . . . . . . . . . . . .

213

WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Reference Value . . . . . . . . . . .

213