Nissan Cube. Instruction — part 878

B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

SRC-29

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

YES

>> GO TO 1.

NO

>> INSPECTION END

SRC-30

< DTC/CIRCUIT DIAGNOSIS >

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000009946103

• It detects a shock that is more than the specified level and monitors whether the driver and passenger air

bags, side air bag, curtain air bag, and pre-tensioner seat belts operate normally.

• It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat-

tery damage in collision.

DTC Logic

INFOID:0000000009946104

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “AIR BAG” Self Diagnostic Result.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to

SRC-18, "Diagnosis with Air Bag Warning Lamp"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to

SRC-30, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946105

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes

or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to

SR-26, "Exploded View"

2.

Perform DTC confirmation procedure. Refer to

SRC-30, "DTC Logic"

Is DTC detected?

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1011
B1012
B1013
B1014
B1015

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

SRC-31

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

YES

>> GO TO 1.

NO

>> INSPECTION END

SRC-32

< DTC/CIRCUIT DIAGNOSIS >

B1017, B1020, B1021 OCCUPANT SYSTEM CONTROL UNIT

B1017, B1020, B1021 OCCUPANT SYSTEM CONTROL UNIT

Description

INFOID:0000000009946106

This unit classifies occupant in passenger seat and detects electrical malfunctions in Occupant Detection Sys-
tem, and transmits malfunction information to air bag diagnosis sensor unit.

DTC Logic

INFOID:0000000009946107

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

With CONSULT

1.

Turn ignition switch ON.

2.

Perform “AIR BAG” Self Diagnostic Result with CONSULT.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to

SRC-18, "Diagnosis with Air Bag Warning Lamp"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to

SRC-32, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946108

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes

or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE OCCUPANT DETECTION SYSTEM CONTROL UNIT

1.

Replace occupant detection system control unit. Refer to

SR-29, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to

SRC-32, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4.

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1017
B1020
B1021

OCCUPANT SENS C/U
[UNIT FAIL]

Occupant Detection System control unit
is malfunctioning

• Disconnection of wiring harness
• Malfunction in Occupant Detection System con-

trol unit

• Malfunction in air bag diagnosis sensor unit