Nissan Cube. Manual - part 893

B1088 SEAT BELT PRE-TENSIONER LH

SRC-89

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

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-88, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

NO

>> INSPECTION END

SRC-90

< DTC/CIRCUIT DIAGNOSIS >

B1089 SEAT BELT PRE-TENSIONER LH

B1089 SEAT BELT PRE-TENSIONER LH

Description

INFOID:0000000009946193

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:0000000009946194

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-90, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946195

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 LH. Refer to 

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

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-90, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 4. 

NO

>> INSPECTION END

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1089

PRE-TEN FRONT LH 
[SHORT]

Seat belt pre-tensioner LH circuits are 
shorted to each other

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

B1089 SEAT BELT PRE-TENSIONER LH

SRC-91

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

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-90, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1. 

NO

>> INSPECTION END

SRC-92

< DTC/CIRCUIT DIAGNOSIS >

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

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

Description

INFOID:0000000009946196

• 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:0000000009946197

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-92, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946198

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 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-92, "DTC Logic"

.

DTC

Display contents of 

CONSULT

DTC detecting condition

Possible cause

B1090
B1091
B1092
B1093
B0194
B1095

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit