Infiniti G37 Coupe. Manual — part 1126

SEC-1

BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY

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SECTION

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SEC

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CONTENTS

SECURITY CONTROL SYSTEM

INTELLIGENT KEY SYSTEM

BASIC INSPECTION . . . . . . . . .

5

DIAGNOSIS AND REPAIR WORKFLOW . . ..

5

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

5

INSPECTION AND ADJUSTMENT . . . . . .

8

ECM RE-COMMUNICATING FUNCTION . . . . ...

8

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

8

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

8

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

9

INTELLIGENT KEY SYSTEM/ENGINE
START FUNCTION . . . . . . . . . . . .

9

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

9

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

9

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

13

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

16

INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS . . . . . . . . . . . . . . . . ..

17

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

17

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

17

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

19

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

22

VEHICLE SECURITY SYSTEM . . . . . . .

23

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

23

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

23

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

25

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

28

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

29

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

29

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

29

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

30

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

30

THEFT ALM . . . . . . . . . . . . . . . ...

33

THEFT ALM : CONSULT-III Function (BCM -
THEFT) . . . . . . . . . . . . . . . . .

34

IMMU . . . . . . . . . . . . . . . . . . ..

35

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

35

COMPONENT DIAGNOSIS . . . . . . .

36

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

36

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

36

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

36

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

36

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

37

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

37

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

37

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

37

P1610 LOCK MODE . . . . . . . . . . .

38

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

38

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

38

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

38

P1611 ID DISCORD, IMMU-ECM . . . . . .

39

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

39

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

39

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

39

P1612 CHAIN OF ECM-IMMU . . . . . . ..

41

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

41

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

41

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

41

P1614 CHANIN OF IMMU-KEY . . . . . .

42

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

42

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

42

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

42

SEC-2

P1615 DIFFRENCE OF KEY . . . . . . . .

45

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

45

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

45

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

45

B2190 NATS ANTENNA AMP. . . . . . . .

46

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

46

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

46

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

46

B2191 DIFFERENCE OF KEY . . . . . . ..

49

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

49

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

49

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

49

B2192 ID DISCORD, IMMU-ECM . . . . . ..

50

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

50

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

50

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

50

B2193 CHAIN OF ECM-IMMU . . . . . . ...

52

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

52

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

52

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

52

B2195 ANTI-SCANNING . . . . . . . . ...

53

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

53

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

53

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

53

B2013 ID DISCORD, IMMU-STRG . . . . .

54

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

54

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

54

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

54

B2014 CHAIN OF STRG-IMMU . . . . . . .

55

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

55

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

55

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

55

B2555 STOP LAMP . . . . . . . . . . ...

58

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

58

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

58

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

58

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

59

B2556 PUSH-BUTTON IGNITION SWITCH . .

60

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

60

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

60

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

60

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

61

B2557 VEHICLE SPEED . . . . . . . . ...

62

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

62

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

62

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

62

B2560 STARTER CONTROL RELAY . . . ...

63

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

63

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

63

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

63

B2601 SHIFT POSITION . . . . . . . . ...

64

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

64

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

64

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

64

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

66

B2602 SHIFT POSITION . . . . . . . . ...

67

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

67

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

67

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

67

B2603 SHIFT POSITION STATUS . . . . .

69

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

69

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

69

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

69

B2604 PNP SWITCH . . . . . . . . . . .

72

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

72

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

72

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

72

B2605 PNP SWITCH . . . . . . . . . . .

74

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

74

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

74

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

74

B2606 STEERING LOCK RELAY . . . . . .

76

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

76

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

76

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

76

B2607 STEERING LOCK RELAY . . . . . .

77

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

77

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

77

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

77

B2608 STARTER RELAY . . . . . . . . .

79

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

79

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

79

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

79

B2609 STEERING STATUS . . . . . . . ..

81

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

81

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

81

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

81

B260B STEERING LOCK UNIT . . . . . .

85

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

85

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

85

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

85

B260C STEERING LOCK UNIT . . . . . .

86

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

86

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

86

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

86

B260D STEERING LOCK UNIT . . . . . .

87

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

87

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

87

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

87

B260F ENGINE STATUS . . . . . . . . ..

88

SEC-3

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

88

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

88

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

88

B26E1 NO RECEPTION OF ENGINE STA-
TUS SIGNAL . . . . . . . . . . . . . ..

89

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

89

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

89

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

89

B2612 STEERING STATUS . . . . . . . ...

90

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

90

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

90

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

90

B2617 STARTER RELAY CIRCUIT . . . . ...

94

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

94

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

94

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

94

B2619 BCM . . . . . . . . . . . . . .

96

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

96

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

96

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

96

B261A PUSH-BUTTON IGNITION SWITCH . .

97

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

97

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

97

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

97

B261E VEHICLE TYPE . . . . . . . . .

100

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

100

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

100

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

100

B2108 STEERING LOCK RELAY . . . . .

101

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

101

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

101

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

101

B2109 STEERING LOCK RELAY . . . . .

102

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

102

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

102

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

102

B210A STEERING LOCK CONDITION
SWITCH . . . . . . . . . . . . . . .

103

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

103

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

103

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

103

B210B STARTER CONTROL RELAY . . . .

107

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

107

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

107

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

107

B210C STARTER CONTROL RELAY . . . .

108

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

108

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

108

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

108

B210D STARTER RELAY . . . . . . . .

109

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

109

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

109

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

109

B210E STARTER RELAY . . . . . . . ...

110

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

110

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

110

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

110

B210F PNP/CLUTCH INTERLOCK SWITCH .

112

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

112

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

112

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

112

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

115

B2110 PNP/CLUTCH INTERLOCK SWITCH .

116

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

116

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

116

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

116

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

118

POWER SUPPLY AND GROUND CIRCUIT ..

119

BCM . . . . . . . . . . . . . . . . . . .

119

BCM : Diagnosis Procedure . . . . . . . . ..

119

BCM : Special Repair Requirement . . . . . ...

119

IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) . . . . . . .

119

IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure . . . . . . . . . . . . . . . . .

119

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

121

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

121

Component Function Check . . . . . . . .

121

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

121

KEY SLOT ILLUMINATION . . . . . . .

122

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

122

Component Function Check . . . . . . . .

122

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

122

CLUTCH PEDAL POSITION SWITCH . . ...

124

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

124

Component Function Check . . . . . . . .

124

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

124

Component Inspection (ASCD Clutch Switch) . ..

126

Component Inspection (ICC Clutch Switch) . . ..

126

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

127

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

127

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

127

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

127

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

128

HOOD SWITCH . . . . . . . . . . . ...

129

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

129

Component Function Check . . . . . . . .

129

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

129

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

130

SEC-4

HORN . . . . . . . . . . . . . . . ...

131

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

131

Component Function Check . . . . . . . .

131

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

131

HEADLAMP . . . . . . . . . . . . . .

133

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

133

Component Function Check . . . . . . . .

133

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

133

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

134

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

134

Component Function Check . . . . . . . .

134

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

134

VEHICLE SECURITY INDICATOR . . . . ..

135

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

135

Component Function Check . . . . . . . .

135

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

135

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

136

BCM (BODY CONTROL MODULE) . . . .

136

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

136

Wiring Diagram - INTELLIGENT KEY SYSTEM/
ENGINE START FUNCTION - . . . . . . . ..

159

Wiring Diagram - VEHICLE SECURITY SYSTEM
- . . . . . . . . . . . . . . . . . . . .

167

Wiring Diagram - IVIS - . . . . . . . . . . ..

173

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

179

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

181

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

183

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) . . . ...

185

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

185

Wiring Diagram - INTELLIGENT KEY SYSTEM/
ENGINE START FUNCTION - . . . . . . . ..

192

Wiring Diagram - VEHICLE SECURITY SYSTEM
- . . . . . . . . . . . . . . . . . . . .

200

Wiring Diagram - IVIS - . . . . . . . . . . ..

206

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

212

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

214

SYMPTOM DIAGNOSIS . . . . . . .

215

SECURITY CONTROL SYSTEM . . . . . .

215

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

215

ENGINE DOES NOT START WITH INTELLI-
GENT KEY . . . . . . . . . . . . . ...

217

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

217

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

217

STEERING DOES NOT LOCK . . . . . .

218

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

218

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

218

ENGINE DOES NOT START WHEN INTELLI-
GENT KEY IS INSERTED INTO KEY SLOT .

219

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

219

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

219

SECURITY INDICATOR DOES NOT TURN
ON . . . . . . . . . . . . . . . . . .

220

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

220

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

220

VEHICLE SECURITY SYSTEM CAN NOT BE
SET . . . . . . . . . . . . . . . . ...

221

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

221

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

221

VEHICLE SECURITY ALARM DOES NOT
ACTIVATE . . . . . . . . . . . . . .

222

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

222

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

222

VEHICLE SECURITY SYSTEM CAN NOT
CANCELED . . . . . . . . . . . . . ..

223

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

223

INTELLIGENT KEY : Description . . . . . . ..

223

INTELLIGENT KEY : Diagnosis Procedure . . ..

223

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

223

DOOR REQUEST SWITCH : Description . . . .

223

DOOR REQUEST SWITCH : Diagnosis Proce-
dure . . . . . . . . . . . . . . . . . ...

223

KEY SLOT INDICATOR DOES NOT ILLUMI-
NATE . . . . . . . . . . . . . . . .

224

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

224

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

224

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

225

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

225

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

225

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

225

Precautions For Xenon Headlamp Service . . ...

225

Precaution for Procedure without Cowl Top Cover .

226

ON-VEHICLE REPAIR . . . . . . . ..

227

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

227

Exploded View . . . . . . . . . . . . . ..

227

Removal and Installation . . . . . . . . . ...

227

PUSH BUTTON IGNITION SWITCH . . . .

228

Exploded View . . . . . . . . . . . . . ..

228

Removal and Installation . . . . . . . . . ...

228

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