Nissan Murano Z51. Manual - part 1371

SRC-254

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

B1120, B1121 SATELLITE SENS LH

B1120, B1121 SATELLITE SENS LH

Description

INFOID:0000000005513802

DTC B1120, B1121 [COMM FAIL] SATELLITE SENS LH

Main “G” sensor generates signal voltage, when it detects deceleration beyond the specified level by vehicle
side collision.

OPERATION

When ACU defines both signal voltage of the “G” sensor and the Safing algorithm to be that of collision which
exceeds specified level, the driving circuit switches on and feeds the electric ignitor of both the front side air
bag and side curtain air bag.

STRUCTURE

Integrated type of the G sensor element for side collision with output terminals for signal voltage.

INSTALLATION

LH satellite sensor is installed at the underside of center pillar with fixed nuts.

DTC Logic

INFOID:0000000005513803

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-lll.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-255, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1120

B1121

SATELLITE SENS LH 
[COMM FAIL]
[UNMATCH]

LH satellite sensor is out of order

• Disconnection of wiring harness
• Internal breakdown in LH satellite 

sensor

• Internal breakdown in air bag diag-

nosis sensor unit

B1120, B1121 SATELLITE SENS LH

SRC-255

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.
Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-314

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000005513804

With CONSULT-lll

WARNING:

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

minutes. (To discharge backup capacitor.)

• Do not 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

>> Repair or replace harness connector.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Repair or replace wiring harness.

3.

CHECK SATELLITE SENSOR

1.

Replace LH satellite sensor.

2.

Check the screen of CONSULT-lll.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

SRC-256

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000005513805

DTC B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air
bag warning lamp in the combination meter. Malfunctioning part can be detected by on board self-diagnosis
system and electro-diagnosis tester CONSULT-III.

OPERATION

It detects a shock that exceeds specified level and monitors such systems as the driver and passenger air
bag, front side air bag, side curtain air bag, pre-tensioner seat belts operate properly. 

STRUCTURE

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

INSTALLATION

Air bag diagnosis sensor unit is installed under the center console with fixed bolts.

DTC Logic

INFOID:0000000005513806

DTC DETECTION LOGIC

With CONSULT-III

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-III.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-257, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1122
B1123
B1124
B1125
B1126
B1127

CONTROL UNIT 

Air bag diagnosis sensor unit is out of 
order or mis-match

• Internal breakdown in air bag diag-

nosis sensor unit

• Mis-match between specification on 

vehicle and configuration in air bag 
diagnosis sensor unit

B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

SRC-257

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

>> GO TO 2.

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.

Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-314

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000005513807

With CONSULT-III

WARNING:

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

minutes. (To discharge backup capacitor.)

• Do not 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

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

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

YES

>> GO TO 3.

NO

>> Repair or replace wiring harness.

3.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit.

2.

Check the screen of CONSULT-III.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.