Nissan Cube. Instruction — part 907

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

SRC-145

< DTC/CIRCUIT DIAGNOSIS >

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

Description

INFOID:0000000009946277

• 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:0000000009946278

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-145, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946279

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-145, "DTC Logic"

.

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1154
B1155
B1156
B1157
B1158
B1159

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

SRC-146

< DTC/CIRCUIT DIAGNOSIS >

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

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

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

SRC-147

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

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J

K

L

M

A

B

SRC

N

O

P

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

Description

INFOID:0000000009946280

• 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:0000000009946281

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-147, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009946282

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-147, "DTC Logic"

.

DTC

Display contents of

CONSULT

DTC detecting condition

Possible cause

B1170
B1171
B1172
B1173
B1174
B1175

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

SRC-148

< DTC/CIRCUIT DIAGNOSIS >

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

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END