Nissan Cube. Manual - part 889

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

SRC-73

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

SRC-74

< DTC/CIRCUIT DIAGNOSIS >

B1080, B1096 DRIVER AIR BAG MODULE

B1080, B1096 DRIVER AIR BAG MODULE

Description

INFOID:0000000009946169

In case of frontal collision where acceleration is more than the specified level, the ignition materials are ignited
by electric ignition system. The system burns the gas generating materials resulting in a chemical reaction.
This generates hot gases that flow into the air bag through a filter and expand the bag.

DTC Logic

INFOID:0000000009946170

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-74, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946171

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 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 connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

CHECK SPIRAL CABLE CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect driver air bag module connector and combination switch (spiral cable) connector.

3.

Check continuity between driver air bag module harness connector and combination switch (spiral cable)
harness connector.

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1080
B1096

DRIVER AIRBAG 
MODULE 
[SHORT]

Driver air bag module circuit are shorted to each 
other
(including the spiral cable)

• Disconnection of wiring harness and short
• Malfunction in driver air bag module
• Malfunction in spiral cable
• Malfunction in air bag diagnosis sensor unit

B1080, B1096 DRIVER AIR BAG MODULE

SRC-75

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

4.

Check continuity between driver air bag module harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace combination switch (spiral cable). Refer to 

MWI-93, "Exploded View"

.

4.

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-74, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 5.

NO

>> INSPECTION END

5.

REPLACE DRIVER AIR BAG MODULE

1.

Replace driver air bag module. Refer to 

SR-11, "Exploded View"

2.

Perform DTC confirmation procedure. Refer to 

SRC-74, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

Driver air bag module

Combination switch (spiral cable)

Continuity 

Connector

Terminal

Connector

Terminal

M350

10

M32

28

Existed

11

30

M351

12

29

9

30

Driver side air bag module

Ground

Continuity 

Connector

Terminal

M350

10

Not existed

11

M351

12

9

SRC-76

< DTC/CIRCUIT DIAGNOSIS >

B1081 SEAT BELT PRE-TENSIONER RH

B1081 SEAT BELT PRE-TENSIONER RH

Description

INFOID:0000000009946172

In the case of a frontal collision that is more than the specified impact level, the air bag diagnosis sensor unit
detects the deceleration caused by collision. It restrains the passenger with seat belt easing the stress on pas-
sengers chest with load limiter.

DTC Logic

INFOID:0000000009946173

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-76, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946174

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 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 connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

REPLACE SEAT BELT PRE-TENSIONER

1.

Replace seat belt pre-tensioner RH. Refer to 

SB-6, "SEAT BELT RETRACTOR : Exploded View"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-76, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4.

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1081

PRE-TEN FRONT RH 
[OPEN]

Seat belt pre-tensioner RH circuit is open

• Disconnection of wiring harness and open
• Malfunction in seat belt pre-tensioner RH
• Malfunction in air bag diagnosis sensor unit