Infiniti QX56 (Z62). Manual — part 1199

SR-30

< REMOVAL AND INSTALLATION >

OCCUPANT DETECTION SYSTEM CONTROL UNIT

OCCUPANT DETECTION SYSTEM CONTROL UNIT

Exploded View

INFOID:0000000006156560

Refer to

SE-105, "Exploded View"

.

Removal and Installation

INFOID:0000000006113084

1.

Remove passenger seat assembly. Refer to

SE-112, "Removal and Installation"

.

2.

Remove occupant detection system control unit mounting bolts.

3.

Remove occupant detection system control unit harness connector, and then remove occupant detection
system control unit.

SRC-1

RESTRAINTS

C

D

E

F

G

I

J

K

L

M

SECTION

SRC

A

B

SRC

N

O

P

CONTENTS

SRS AIRBAG CONTROL SYSTEM

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

6

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

6

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

6

Service . . . . . . . . . . . . . . . . . ..

6

SYSTEM DESCRIPTION . . . . . . . ..

8

COMPONENT PARTS . . . . . . . . . .

8

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

8

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

9

SYSTEM . . . . . . . . . . . . . . . .

11

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

11

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

12

DIAGNOSIS SYSTEM (AIR BAG) . . . . . .

14

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

14

On Board Diagnosis Function . . . . . . . . .

14

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

19

DIAGNOSIS SYSTEM (OCCUPANT DETEC-
TION SYSTEM) . . . . . . . . . . . . ..

21

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

21

ECU DIAGNOSIS INFORMATION . . . ..

22

DIAGNOSIS SENSOR UNIT . . . . . . . ..

22

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

22

WIRING DIAGRAM . . . . . . . . . ..

27

SRS AIR BAG SYSTEM . . . . . . . . . .

27

Wiring Diagram . . . . . . . . . . . . . ...

27

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

36

DIAGNOSIS AND REPAIR WORK FLOW . .

36

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

36

INSPECTION AND ADJUSTMENT . . . . .

39

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

39

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

39

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

39

ZERO POINT RESET . . . . . . . . . . . . .

39

ZERO POINT RESET : Description . . . . . . .

39

ZERO POINT RESET : Special Repair Require-
ment . . . . . . . . . . . . . . . . . . .

39

DTC/CIRCUIT DIAGNOSIS . . . . . . .

41

B1001, B1002, B1003, B1004, B1005 DIAG-
NOSIS SENSOR UNIT . . . . . . . . . ..

41

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

41

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

41

B1006, B1007, B1008, B1009, B1010 DIAG-
NOSIS SENSOR UNIT . . . . . . . . . ..

42

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

42

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

42

B1011, B1012, B1013, B1014, B1015 DIAG-
NOSIS SENSOR UNIT . . . . . . . . . ..

43

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

43

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

43

B1017, B1020, B1021 OCCUPANT SENS C/U

...

44

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

44

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

44

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

44

B1018 OCCUPANT SENS . . . . . . . .

46

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

46

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

46

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

46

B1022 OCCUPANT SENS C/U . . . . . . .

48

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

48

SRC-2

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

48

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

48

B1023 PASS A/B INDCTR CKT . . . . . .

50

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

50

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

50

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

50

B1025, B1032, B1048 OCS SENSOR . . . ...

52

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

52

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

52

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

52

B1026, B1027, B1028, B1029, B1030, B1031
DIAGNOSIS SENSOR UNIT . . . . . . . ..

54

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

54

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

54

B1033, B1034 CRASH ZONE SENSOR . . ...

55

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

55

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

55

B1035 CRASH ZONE SENSOR . . . . . .

57

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

57

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

57

B1036 CRASH ZONE SENSOR . . . . . .

59

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

59

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

59

B1037, B1039, B1041 CRASH ZONE SEN-
SOR . . . . . . . . . . . . . . . . .

60

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

60

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

60

B1042, B1043, B1044, B1045, B1046, B1047
DIAGNOSIS SENSOR UNIT . . . . . . . ..

62

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

62

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

62

B1049, B1054 DRIVER AIR BAG MODULE . .

63

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

63

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

63

B1050, B1055 DRIVER AIR BAG MODULE . .

65

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

65

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

65

B1051, B1056 DRIVER AIR BAG MODULE . .

67

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

67

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

67

B1052, B1057 DRIVER AIR BAG MODULE . .

69

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

69

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

69

B1058, B1059, B1060, B1061, B1062, B1063
DIAGNOSIS SENSOR UNIT . . . . . . . ..

71

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

71

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

71

B1065, B1070 PASSENGER AIR BAG MOD-
ULE . . . . . . . . . . . . . . . . .

72

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

72

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

72

B1066, B1071 PASSENGER AIR BAG MOD-
ULE . . . . . . . . . . . . . . . . .

74

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

74

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

74

B1067, B1072 PASSENGER AIR BAG MOD-
ULE . . . . . . . . . . . . . . . . .

76

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

76

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

76

B1068, B1073 PASSENGER AIR BAG MOD-
ULE . . . . . . . . . . . . . . . . .

78

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

78

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

78

B1074, B1075, B1076, B1077, B1078, B1079
DIAGNOSIS SENSOR UNIT . . . . . . . .

80

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

80

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

80

B1080, B1096 DRIVER AIR BAG MODULE . .

81

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

81

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

81

B1081 SEAT BELT PRE-TENSIONER RH . ...

83

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

83

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

83

B1082 SEAT BELT PRE-TENSIONER RH . ...

85

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

85

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

85

B1083 SEAT BELT PRE-TENSIONER RH . ...

87

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

87

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

87

B1084 SEAT BELT PRE-TENSIONER RH . ...

89

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

89

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

89

B1086 SEAT BELT PRE-TENSIONER LH . ...

91

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

91

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

91

B1087 SEAT BELT PRE-TENSIONER LH . ...

93

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

93

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

93

B1088 SEAT BELT PRE-TENSIONER LH . ...

95

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

95

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

95

B1089 SEAT BELT PRE-TENSIONER LH . ...

97

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

97

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

97

SRC-3

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1090, B1091, B1092, B1093, B1094, B1095
DIAGNOSIS SENSOR UNIT . . . . . . . ..

99

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

99

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

99

B1106, B1107, B1108, B1109, B1110, B1111
DIAGNOSIS SENSOR UNIT . . . . . . .

100

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

100

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

100

B1113, B1114 SATELLITE SENSOR RH . .

101

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

101

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

101

B1115 SATELLITE SENSOR RH . . . . .

103

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

103

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

103

B1116 SATELLITE SENSOR RH . . . . .

105

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

105

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

105

B1118, B1119 SATELLITE SENSOR LH . .

106

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

106

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

106

B1120 SATELLITE SENSOR LH . . . . . .

108

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

108

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

108

B1121 SATELLITE SENSOR LH . . . . . .

110

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

110

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

110

B1122, B1123, B1124, B1125, B1126, B1127
DIAGNOSIS SENSOR UNIT . . . . . . .

111

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

111

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

111

B1129 SIDE AIR BAG MODULE RH . . . ...

112

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

112

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

112

B1130 SIDE AIR BAG MODULE RH . . . ...

114

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

114

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

114

B1131 SIDE AIR BAG MODULE RH . . . ...

116

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

116

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

116

B1132 SIDE AIR BAG MODULE RH . . . ...

118

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

118

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

118

B1134 SIDE AIR BAG MODULE LH . . . ...

120

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

120

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

120

B1135 SIDE AIR BAG MODULE LH . . . ...

122

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

122

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

122

B1136 SIDE AIR BAG MODULE LH . . . ..

124

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

124

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

124

B1137 SIDE AIR BAG MODULE LH . . . ..

126

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

126

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

126

B1138, B1139, B1140, B1141, B1142, B1143
DIAGNOSIS SENSOR UNIT . . . . . . ...

128

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

128

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

128

B1144 DIAGNOSIS SENSOR UNIT . . . ...

129

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

129

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

129

B1145 CURTAIN AIR BAG MODULE RH . ..

130

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

130

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

130

B1146 CURTAIN AIR BAG MODULE RH . ..

132

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

132

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

132

B1147 CURTAIN AIR BAG MODULE RH . ..

134

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

134

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

134

B1148 CURTAIN AIR BAG MODULE RH . ..

136

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

136

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

136

B1150 CURTAIN AIR BAG MODULE LH . ..

138

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

138

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

138

B1151 CURTAIN AIR BAG MODULE LH . ..

140

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

140

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

140

B1152 CURTAIN AIR BAG MODULE LH . ..

142

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

142

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

142

B1153 CURTAIN AIR BAG MODULE LH . ..

144

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

144

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

144

B1154, B1155, B1156, B1157, B1158, B1159
DIAGNOSIS SENSOR UNIT . . . . . . ...

146

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

146

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

146

B1170, B1171, B1172, B1173, B1174, B1175
DIAGNOSIS SENSOR UNIT . . . . . . ...

147

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

147

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

147

B1177 LAP PRE-TENSIONER RH . . . . .

148

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

148

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

148