Nissan Murano. Manual - part 1320

SRC-128

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

B1416, B1417, B1418, B1419, B1420 AIR BAG DIAGNOSIS SENSOR UNIT

B1416, B1417, B1418, B1419, B1420 AIR BAG DIAGNOSIS SENSOR UNIT

DTC Logic

INFOID:0000000009718586

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-91, "On Board Diagnosis Function"

.

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-128, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718587

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-55, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to 

SRC-128, "DTC Logic"

.

Is DTC detected?

YES

>>  GO TO 1.

NO

>> INSPECTION END

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

Possible cause

B1416
B1417
B1418
B1419
B1420

CONTROL UNIT
(air bag control unit internal trou-
ble)

Air bag diagnosis sensor unit is 
malfunctioning

Malfunction in air bag diagnosis 
sensor unit

B1421 FRONTAL COLLISION DETECTION

SRC-129

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

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B1421 FRONTAL COLLISION DETECTION

DTC Logic

INFOID:0000000009718588

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-91, "On Board Diagnosis Function"

.

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-129, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718589

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.

PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to 

SR-33, "FOR FRONTAL COLLISION : When SRS is activated in a colli-

sion"

 or 

SR-34, "FOR FRONTAL COLLISION : When SRS is not activated in a collision"

.

>> GO TO 2.

2.

FINAL INSPECTION

Perform “AIR BAG” Self Diagnostic Result.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis of applicable DTC. Refer to 

SRC-129, "DTC Logic"

.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

Possible cause

B1421

FRONTAL COLLISION DETEC-
TION
(Firing Record, Frontal)

 Driver air bag, passenger air bag 
and seat belt pre-tensioner are de-
ployed

—

SRC-130

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

B1422 SIDE COLLISION DETECTION

B1422 SIDE COLLISION DETECTION

DTC Logic

INFOID:0000000009718590

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-91, "On Board Diagnosis Function"

.

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-130, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718591

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.

PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to 

SR-35, "FOR SIDE AND ROLLOVER COLLISION : When SRS is acti-

vated in a collision"

 or 

SR-36, "FOR SIDE AND ROLLOVER COLLISION : When SRS is not activated in a col-

lision"

.

>> GO TO 2.

2.

FINAL INSPECTION

Perform “AIR BAG” Self Diagnostic Result.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis of applicable DTC. Refer to 

SRC-130, "DTC Logic"

.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

Possible cause

B1422

SIDE COLLISION DETECTION
(Firing Record, Side)

Side air bag and curtain air bag are 
deployed

—

B1423 ROLLOVER DETECTION

SRC-131

< DTC/CIRCUIT DIAGNOSIS >

[FOR MEXICO]

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B1423 ROLLOVER DETECTION

DTC Logic

INFOID:0000000009718592

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.

 Without CONSULT

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-91, "On Board Diagnosis Function"

.

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-131, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718593

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.

PERFORM COLLISION DIAGNOSIS

Perform collision diagnosis.Refer to 

SR-35, "FOR SIDE AND ROLLOVER COLLISION : When SRS is acti-

vated in a collision"

 or 

SR-36, "FOR SIDE AND ROLLOVER COLLISION : When SRS is not activated in a col-

lision"

.

>> GO TO 2.

2.

FINAL INSPECTION

Perform “AIR BAG” Self Diagnostic Result.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis of applicable DTC. Refer to 

SRC-131, "DTC Logic"

.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

Possible cause

B1423

ROLLOVER DETECTION
(Firing Record, Rollover with Roll-
ing state 2)

Front seat belt pre-tensioner, curtain air 
bag module are deployed because of roll-
over detection

—