Nissan X-Trail 32. Manual - part 1977

SRC-76

< DTC/CIRCUIT DIAGNOSIS >

B1425 REAR COLLISION DETECTION

B1425 REAR COLLISION DETECTION

DTC Description

INFOID:0000000010688501

DTC DETECTION LOGIC

POSSIBLE CAUSE

—

FAIL-SAFE

—

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.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-76, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010688502

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-13, "FOR FRONTAL COLLISION : When SRS is activated in a colli-

sion"

 or 

SR-14, "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-18, "DTC Index"

.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B1425–00

REAR COLLISION
(Rear Crash Detect)

Rear collision detected

B1426 DISPOSAL DEPLOYMENT DETECTION

SRC-77

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1426 DISPOSAL DEPLOYMENT DETECTION

DTC Description

INFOID:0000000010842527

DTC DETECTION LOGIC

POSSIBLE CAUSE

—

FAIL-SAFE

—

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.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-77, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010842528

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.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

Replace air bag diagnosis sensor unit. Refer to 

SR-38, "Removal and Installation"

.

>> INSPECTION END

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B1426–00

AIR BAG DISPOSAL DETECT
(Firing Record, Airbag disposal)

Reuse of air bag diagnosis sensor unit

SRC-78

< DTC/CIRCUIT DIAGNOSIS >

B1427 CONFIG SETTING

B1427 CONFIG SETTING

DTC Description

INFOID:0000000010688503

DTC DETECTION LOGIC

POSSIBLE CAUSE

[B1427–54]

Mistake of configuration for air bag diagnosis sensor unit

[B1427–55]

Incomplete of configuration for air bag diagnosis sensor unit

FAIL-SAFE

—

Diagnosis Procedure

INFOID:0000000010688504

1.

PERFORM CONFIGURATION

Perform configuration for air bag diagnosis sensor unit.

>> Refer to 

SRC-31, "Description"

.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B1427–54

CONFIG SETTING
(Configuration setting)

When errors are detected in the configuration data stored in the air bag 
diagnosis sensor unit

B1427–55

When no data are stored in the air bag diagnosis sensor unit

B142A IGN VOLTAGE

SRC-79

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B142A IGN VOLTAGE

DTC Description

INFOID:0000000010688505

DTC DETECTION LOGIC

POSSIBLE CAUSE

[B142A–16]

• Malfunction of battery voltage (less than 9 V)
• Connection malfunction of harness or connector 
• Internal malfunction of air bag diagnosis sensor unit

[B142A–17]

• Malfunction of battery voltage (more than 16 V)
• Connection malfunction of harness or connector 
• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

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.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-79, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010688506

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 BATTERY VOLTAGE

Check battery voltage. Refer to 

PG-118, "R9M : How to Handle Battery"

 (For R9M engine models) or 

PG-121,

"EXCEPT FOR R9M : How to Handle Battery"

 (Except for R9M engine models).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace battery. Refer to 

PG-142, "EXCEPT FOR R9M : Removal and Installation"

.

2.

CHECK HARNESS CONNECTOR

Check the harness connector for disconnection, looseness or damage.

Is the inspection result normal?

YES

>> GO TO 3.

NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.

DTC

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B142A–16

IGNITION VOLTAGE
(Ignition voltage Low)

Power supply malfunction (low voltage) of air bag diagnosis sensor unit

B142A–17

IGNITION VOLTAGE
(Ignition voltage High)

Power supply malfunction (high voltage) of air bag diagnosis sensor 
unit