Nissan Maxima. Manual - part 1093

OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

SR-33

< REMOVAL AND INSTALLATION >

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OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

Removal and Installation

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Removal and Installation

The occupant classification system control unit and sensor mat are an integral part of the front passenger seat

cushion, and are replaced as an assembly only. Refer to 

SE-68, "Removal and Installation"

 (WITH CLIMATE

CONTROL), or 

SE-126, "Removal and Installation"

 (W/O CLIMATE CONTROL).

CAUTION:

Do not disassemble the seat trim from the seat cushion foam.

SRC-1

RESTRAINTS

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SECTION 

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CONTENTS

SRS AIRBAG CONTROL SYSTEM

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

3

DIAGNOSIS AND REPAIR WORK FLOW  .........

3

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

3

INTERMITTENT INCIDENT .................................

5

Inspection Procedure ...............................................

5

Trouble Diagnosis with CONSULT ............................

5

SYSTEM DESCRIPTION  ..............................

6

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

6

SRS Configuration  ....................................................

6

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

7

Driver Air Bag Module  ...............................................

7

Front Passenger Air Bag Module ..............................

8

Front Side Air Bag .....................................................

8

Side Curtain Air Bag ..................................................

8

Front Seat Belt Pre-tensioner ....................................

8

SRS Component Connectors ....................................

9

OCCUPANT CLASSIFICATION SYSTEM .........

10

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

10

Occupant Classification System (OCS)  ..................

10

PASSENGER SEAT BELT WARNING SYS-
TEM ....................................................................

11

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

11

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

11

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

11

ON BOARD DIAGNOSTIC (OBD) SYSTEM ......

12

Trouble Diagnosis Introduction  ...............................

12

SRS Operation Check .............................................

12

Trouble Diagnosis without CONSULT .....................

14

CONSULT Function (AIR BAG)  ..............................

14

Self-Diagnosis Function (Without CONSULT)  ........

14

DTC/CIRCUIT DIAGNOSIS  .........................

16

B1049 – B1052, B1054 – B1057 DRIVER AIR-
BAG MODULE  ...................................................

16

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

16

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

16

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

17

B1065 – B1068, B1070 – B1073 PASSEN-
GER AIRBAG MODULE  ...................................

19

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

19

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

19

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

20

B1134 – B1137 SIDE AIRBAG MODULE LH ...

22

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

22

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

22

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

22

B1129 – B1132 SIDE AIRBAG MODULE RH ...

25

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

25

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

25

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

25

B1150 – B1153 SIDE CURTAIN AIR BAG 
MODULE LH  .....................................................

28

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

28

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

28

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

28

B1145 – B1148 SIDE CURTAIN AIR BAG 
MODULE RH  .....................................................

31

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

31

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

31

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

31

B1086 – B1089 SEAT BELT PRE-TENSION-
ER LH  ................................................................

34

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

34

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

34

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

34

B1081 – B1084 SEAT BELT PRE-TENSION-
ER RH ................................................................

37

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

37

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

37

SRC-2

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

37

B1033 – B1035 CRASH ZONE SENSOR  .........

40

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

40

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

40

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

40

B1118 – B1120 SATELLITE SENSOR LH ........

42

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

42

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

42

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

42

B1113 – B1115 SATELLITE SENSOR RH  .......

44

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

44

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

44

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

44

B1XXX AIR BAG DIAGNOSIS SENSOR UNIT ...

46

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

46

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

46

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

46

B1023 PASSENGER AIR BAG OFF INDICA-
TOR ....................................................................

48

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

48

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

48

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

48

B1017 – B1022 OCCUPANT CLASSIFICA-
TION SYSTEM  ...................................................

50

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

50

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

50

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

51

B1209 – B1210 COLLISION DETECTION ........

53

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

53

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

53

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

53

ECU DIAGNOSIS INFORMATION .............

54

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

54

Trouble Diagnosis with CONSULT  .........................

54

Trouble Diagnosis without CONSULT  ....................

56

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

60

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

60

Wiring Diagram - For Mexico  ..................................

60

Wiring Diagram - Except Mexico .............................

70

SYMPTOM DIAGNOSIS  ............................

80

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

80

"AIR BAG" Warning Lamp Does Not Turn Off  ........

80

"AIR BAG" Warning Lamp Does Not Turn On  ........

80

PASSENGER SEAT BELT WARNING SYS-
TEM ....................................................................

82

Seat Belt Warning System Does Not Function  .......

82

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

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

83

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

83

Precaution for SRS "AIR BAG" and "SEAT BELT 
PRE-TENSIONER" Service  ....................................

83

Occupant Classification System Precaution  ...........

83

DIAGNOSIS AND REPAIR WORK FLOW

SRC-3

< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

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OVERALL SEQUENCE

DETAILED WORK FLOW

1.

CUSTOMER INFORMATION 

Get detailed information from the customer about the symptom.

>> GO TO 2

2.

PRELIMINARY CHECK

Perform preliminary check. Refer to 

SRC-12, "Trouble Diagnosis Introduction"

.

*1

SRC-12, "Trouble Diagnosis Intro-
duction"

*2

SRC-12, "SRS Operation Check"

*3

SRC-5, "Trouble Diagnosis with 
CONSULT"

*4

SRC-14, "Self-Diagnosis Function 
(Without CONSULT)"

AWHIA0310GB