Infiniti G37 Coupe. Manual — part 360

DLK-1

BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY

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SECTION

DLK

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CONTENTS

DOOR & LOCK

INTELLIGENT KEY SYSTEM

BASIC INSPECTION . . . . . . . . .

8

DIAGNOSIS AND REPAIR WORKFLOW . . ..

8

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

8

INSPECTION AND ADJUSTMENT . . . . .

11

ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT . . . . . . . . . . . . . .

11

ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description . . . . . . . .

11

ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement . .

11

ECM RE-COMMUNICATING FUNCTION . . . . .

11

ECM RE-COMMUNICATING FUNCTION : De-
scription . . . . . . . . . . . . . . . . ...

11

ECM RE-COMMUNICATING FUNCTION : Spe-
cial Repair Requirement . . . . . . . . . . ..

11

FUNCTION DIAGNOSIS . . . . . . . ..

12

DOOR LOCK FUNCTION . . . . . . . . ..

12

DOOR LOCK AND UNLOCK SWITCH . . . . . .

12

DOOR LOCK AND UNLOCK SWITCH : System
Diagram . . . . . . . . . . . . . . . . ...

12

DOOR LOCK AND UNLOCK SWITCH : System
Description . . . . . . . . . . . . . . . ..

12

DOOR LOCK AND UNLOCK SWITCH :
Component Parts Location . . . . . . . . .

13

DOOR LOCK AND UNLOCK SWITCH :
Component Description . . . . . . . . . . ..

15

DOOR REQUEST SWITCH . . . . . . . . . ...

15

DOOR REQUEST SWITCH : System Diagram . ..

15

DOOR REQUEST SWITCH : System Description

.

15

DOOR REQUEST SWITCH :
Component Parts Location . . . . . . . . .

18

DOOR REQUEST SWITCH :
Component Description . . . . . . . . . . ..

20

INTELLIGENT KEY . . . . . . . . . . . . .

20

INTELLIGENT KEY : System Diagram . . . . .

20

INTELLIGENT KEY : System Description . . . ...

20

INTELLIGENT KEY : Component Parts Location .

23

INTELLIGENT KEY : Component Description . .

24

TRUNK OPEN FUNCTION . . . . . . . ...

26

TRUNK LID OPENER SWITCH . . . . . . . . .

26

TRUNK LID OPENER SWITCH : System Diagram

.

26

TRUNK LID OPENER SWITCH : System Descrip-
tion . . . . . . . . . . . . . . . . . . ...

26

TRUNK LID OPENER SWITCH :
Component Parts Location . . . . . . . . .

27

TRUNK LID OPENER SWITCH :
Component Description . . . . . . . . . . ..

29

TRUNK REQUEST SWITCH . . . . . . . . . .

29

TRUNK REQUEST SWITCH : System Diagram . .

29

TRUNK REQUEST SWITCH : System Descrip-
tion . . . . . . . . . . . . . . . . . . ...

29

TRUNK REQUEST SWITCH :
Component Parts Location . . . . . . . . .

32

TRUNK REQUEST SWITCH :
Component Description . . . . . . . . . . ..

34

INTELLIGENT KEY . . . . . . . . . . . . .

34

INTELLIGENT KEY : System Diagram . . . . .

34

INTELLIGENT KEY : System Description . . . ...

34

INTELLIGENT KEY : Component Parts Location .

36

INTELLIGENT KEY : Component Description . .

38

WARNING FUNCTION . . . . . . . . . ..

39

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

39

Component Parts Location . . . . . . . . .

44

KEY REMINDER FUNCTION . . . . . . .

46

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

46

Component Parts Location . . . . . . . . .

47

INTEGRATED HOMELINK TRANSMITTER .

49

DLK-2

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

49

DIAGNOSIS SYSTEM (BCM) . . . . . . .

50

COMMON ITEM . . . . . . . . . . . . . ....

50

COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) . . . . . . . . . . . . ...
.

50

DOOR LOCK . . . . . . . . . . . . . . . .

51

DOOR LOCK : CONSULT-III Function (BCM -
DOOR LOCK) . . . . . . . . . . . . . .
.

51

INTELLIGENT KEY . . . . . . . . . . . . ...

52

INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) . . . . . . . . ..
.

52

TRUNK . . . . . . . . . . . . . . . . . ..

55

TRUNK : CONSULT-III Function (BCM - TRUNK) ...

55

COMPONENT DIAGNOSIS . . . . . .

57

U1000 CAN COMM CIRCUIT . . . . . . .

57

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

57

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

57

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

57

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

58

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

58

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

58

Special Repair Requirement . . . . . . . . ...

58

B2621 INSIDE KEY ANTENNA 1 . . . . . ..

59

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

59

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

59

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

59

B2622 INSIDE KEY ANTENNA 2 . . . . . ..

61

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

61

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

61

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

61

B2623 INSIDE KEY ANTENNA 3 . . . . . ..

63

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

63

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

63

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

63

POWER SUPPLY AND GROUND CIRCUIT . .

65

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

65

DOOR SWITCH . . . . . . . . . . . . .

66

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

66

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

66

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

66

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

67

DOOR LOCK AND UNLOCK SWITCH . . . .

68

DRIVER SIDE . . . . . . . . . . . . . . ....

68

DRIVER SIDE : Description . . . . . . . . ....

68

DRIVER SIDE : Component Function Check . ....

68

DRIVER SIDE : Diagnosis Procedure . . . . ....

68

DRIVER SIDE : Special Repair Requirement . . .

69

PASSENGER SIDE . . . . . . . . . . . . ...

69

PASSENGER SIDE : Description . . . . . . ...

69

PASSENGER SIDE :
Component Function Check . . . . . . . . ..

69

PASSENGER SIDE : Diagnosis Procedure . . .

69

PASSENGER SIDE : Special Repair Requirement

...

70

KEY SLOT . . . . . . . . . . . . . . .

71

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

71

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

71

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

71

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

72

KEY CYLINDER SWITCH . . . . . . . . .

73

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

73

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

73

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

73

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

74

UNLOCK SENSOR . . . . . . . . . . .

75

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

75

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

75

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

75

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

76

TRUNK LID OPENER SWITCH . . . . . .

77

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

77

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

77

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

77

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

78

TRUNK LID OPENER CANCEL SWITCH . .

79

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

79

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

79

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

79

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

80

TRUNK ROOM LAMP SWITCH . . . . . .

81

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

81

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

81

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

81

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

82

DOOR REQUEST SWITCH . . . . . . . ...

83

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

83

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

83

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

83

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

84

TRUNK LID OPENER REQUEST SWITCH . ..

85

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

85

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

85

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

85

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

86

DOOR LOCK ACTUATOR . . . . . . . .

87

DRIVER SIDE . . . . . . . . . . . . . . .

87

DRIVER SIDE : Description . . . . . . . . .

87

DRIVER SIDE : Component Function Check . .

87

DLK-3

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DRIVER SIDE : Diagnosis Procedure . . . . . .

87

PASSENGER SIDE . . . . . . . . . . . . ...

88

PASSENGER SIDE : Description . . . . . . ...

88

PASSENGER SIDE :
Component Function Check . . . . . . . . ..

88

PASSENGER SIDE : Diagnosis Procedure . . .

88

TRUNK LID OPENER ACTUATOR . . . . ...

89

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

89

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

89

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

89

FUEL LID LOCK ACTUATOR . . . . . . ...

90

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

90

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

90

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

90

INTELLIGENT KEY WARNING BUZZER . . ..

91

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

91

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

91

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

91

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

92

OUTSIDE KEY ANTENNA . . . . . . . . .

93

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

93

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

93

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

93

REMOTE KEYLESS ENTRY RECEIVER . . ..

96

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

96

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

96

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

96

INTELLIGENT KEY . . . . . . . . . . .

99

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

99

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

99

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

99

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

99

Special Repair Requirement . . . . . . . . .

100

KEY SLOT ILLUMINATION . . . . . . . .

101

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

101

Component Function Check . . . . . . . .

101

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

101

COMBINATION METER DISPLAY FUNC-
TION . . . . . . . . . . . . . . . . .

103

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

103

Component Function Check . . . . . . . .

103

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

103

BUZZER (COMBINATION METER) . . . . .

104

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

104

Component Function Check . . . . . . . .

104

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

104

KEY WARNING LAMP . . . . . . . . . .

105

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

105

Component Function Check . . . . . . . .

105

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

105

HORN FUNCTION . . . . . . . . . . ...

106

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

106

Component Function Check . . . . . . . .

106

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

106

HAZARD FUNCTION . . . . . . . . . ..

108

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

108

Component Function Check . . . . . . . .

108

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

108

INTEGRATED HOMELINK TRANSMITTER ..

109

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

109

Component Function Check . . . . . . . .

109

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

109

INTEGRATED HOMELINK TRANSMITTER
SYSTEM . . . . . . . . . . . . . . ..

111

Wiring Diagram - INTEGRATED HOMELINK
TRANSMITTER SYSTEM - . . . . . . . . ...

111

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

113

BCM (BODY CONTROL MODULE) . . . ...

113

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

113

Wiring Diagram - POWER DOOR LOCK SYSTEM
- . . . . . . . . . . . . . . . . . . . .

136

Wiring Diagram - INTELLIGENT KEY SYSTEM - ..

140

Wiring Diagram - TRUNK LID OPENER SYSTEM
- . . . . . . . . . . . . . . . . . . . .

149

Fail Safe . . . . . . . . . . . . . . . .

152

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

154

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

156

SYMPTOM DIAGNOSIS . . . . . . .

158

DOOR LOCK . . . . . . . . . . . . ...

158

Symptom Table . . . . . . . . . . . . . .

158

DOOR DOES NOT LOCK/UNLOCK WITH
DOOR LOCK AND UNLOCK SWITCH . . ..

161

ALL DOOR . . . . . . . . . . . . . . . ...

161

ALL DOOR : Description . . . . . . . . . ...

161

ALL DOOR : Diagnosis Procedure . . . . . .

161

DRIVER SIDE . . . . . . . . . . . . . . ...

161

DRIVER SIDE : Description . . . . . . . . ...

161

DRIVER SIDE : Diagnosis Procedure . . . . ...

162

PASSENGER SIDE . . . . . . . . . . . . ..

162

PASSENGER SIDE : Description . . . . . . ..

162

PASSENGER SIDE : Diagnosis Procedure . . ..

162

DOOR DOES NOT LOCK/UNLOCK WITH
MECHANICAL KEY . . . . . . . . . .

163

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

163

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

163

POWER WINDOW DOWN FUNCTION DOES
NOT WORK WHEN OPERATING WITH ME-
CHANICAL KEY . . . . . . . . . . . ..

164

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

164

DLK-4

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

164

TRUNK LID DOES NOT OPEN WITH TRUNK
LID OPENER SWITCH . . . . . . . . .

165

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

165

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

165

DOOR DOES NOT LOCK/UNLOCK WITH IN-
TELLIGENT KEY . . . . . . . . . . . .

166

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

166

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

166

TRUNK LID DOES NOT OPERATE WITH IN-
TELLIGENT KEY . . . . . . . . . . . .

167

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

167

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

167

SELECTIVE UNLOCK FUNCTION DOES
NOT OPERATE WITH INTELLIGENT KEY .

168

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

168

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

168

POWER WINDOW DOWN FUNCTION DOES
NOT WORK WHEN OPERATING WITH IN-
TELLIGENT KEY . . . . . . . . . . . .

169

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

169

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

169

PANIC ALARM FUNCTION DOES NOT OP-
ERATE . . . . . . . . . . . . . . . .

170

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

170

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

170

DOOR DOES NOT LOCK/UNLOCK WITH
DOOR REQUEST SWITCH . . . . . . . .

171

DRIVER SIDE . . . . . . . . . . . . . . ...

171

DRIVER SIDE : Description . . . . . . . . ...

171

DRIVER SIDE : Diagnosis Procedure . . . . ...

171

PASSENGER SIDE . . . . . . . . . . . . ..

171

PASSENGER SIDE : Description . . . . . . ..

171

PASSENGER SIDE : Diagnosis Procedure . . ..

172

TRUNK LID DOES NOT OPERATE WITH
TRUNK LID OPENER REQUEST SWITCH .

173

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

173

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

173

SELECTIVE UNLOCK FUNCTION DOES
NOT OPERATE WITH DOOR REQUEST
SWITCH . . . . . . . . . . . . . . ...

174

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

174

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

174

KEY REMINDER FUNCTION DOES NOT OP-
ERATE . . . . . . . . . . . . . . . .

175

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

175

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

175

AUTO DOOR LOCK OPERATION DOES NOT
OPERATE . . . . . . . . . . . . . . .

176

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

176

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

176

KEY WARNING DOES NOT OPERATE . . ..

177

BUZZER (COMBINATION METER) . . . . . .

177

BUZZER (COMBINATION METER) : Description .

177

BUZZER (COMBINATION METER) : Diagnosis
Procedure . . . . . . . . . . . . . . . .

177

COMBINATION METER DISPLAY . . . . . . .

177

COMBINATION METER DISPLAY : Description ..

177

COMBINATION METER DISPLAY : Diagnosis
Procedure . . . . . . . . . . . . . . . .

177

OFF POSITION WARNING DOES NOT OP-
ERATE . . . . . . . . . . . . . . . ..

178

WARNING LAMP . . . . . . . . . . . . .

178

WARNING LAMP : Description . . . . . . . .

178

WARNING LAMP : Diagnosis Procedure . . . .

178

BUZZER (COMBINATION METER) . . . . . .

178

BUZZER (COMBINATION METER) : Description .

178

BUZZER (COMBINATION METER) : Diagnosis
Procedure . . . . . . . . . . . . . . . .

178

P POSITION WARNING DOES NOT OPER-
ATE . . . . . . . . . . . . . . . . ...

179

INTELLIGENT KEY WARNING BUZZER . . . ...

179

INTELLIGENT KEY WARNING BUZZER : De-
scription . . . . . . . . . . . . . . . . .

179

INTELLIGENT KEY WARNING BUZZER : Diag-
nosis Procedure . . . . . . . . . . . . .

179

BUZZER (COMBINATION METER) . . . . . .

179

BUZZER (COMBINATION METER) : Description .

179

BUZZER (COMBINATION METER) : Diagnosis
Procedure . . . . . . . . . . . . . . . .

179

ACC WARNING DOES NOT OPERATE . . ..

181

COMBINATION METER DISPLAY . . . . . . .

181

COMBINATION METER DISPLAY : Description ..

181

COMBINATION METER DISPLAY : Diagnosis
Procedure . . . . . . . . . . . . . . . .

181

BUZZER (COMBINATION METER) . . . . . .

181

BUZZER (COMBINATION METER) : Description .

181

BUZZER (COMBINATION METER) : Diagnosis
Procedure . . . . . . . . . . . . . . . .

181

TAKE AWAY WARNING DOES NOT OPER-
ATE (DOOR IS OPENED) . . . . . . . .

183

WARNING LAMP . . . . . . . . . . . . .

183

WARNING LAMP : Description . . . . . . . .

183

WARNING LAMP : Diagnosis Procedure . . . .

183

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