Nissan March K13. Manual - part 619

DIAGNOSIS AND REPAIR WORK FLOW

SRC-15

< BASIC INSPECTION >

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1.

INTERVIEW THE CUSTOMER FOR THE SYMPTOM

Interview the customer for the symptom (the condition and the environment when the incident/malfunction
occurs).

>> GO TO 2.

2.

CHECK SYMPTOM

Check the symptom from the customer information.

>> GO TO 3.

3.

CHECK WARNING LAMP OPERATION

Check air bag warning lamp operation in the user mode. Refer to 

SRC-7, "On Board Diagnosis Function"

.

Are any malfunction detected?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK LOW VOLTAGE

Check low voltage with CONSULT-III (Special function). Refer to 

SRC-9, "CONSULT-III Function"

.

Are any malfunction detected?

YES

>> GO TO 9.

NO

>> Check intermittent incident. Refer to 

GI-33, "Intermittent Incident"

.

5.

CHECK SELF DIAGNOSTIC RESULTS

Check self diagnostic result with CONSULT-III or diagnosis mode.
If it is impossible to switch to diagnosis mode, follow the same procedure that DTC is not detected.
NOTE:
Perform the following procedure if DTC is detected.
• Record DTC (Print them out with CONSULT-III.)
• Erase self diagnostic result.
• Study the relationship between the malfunction that DTC or air bag warning lamp indicates and the symptom

that the customer describes.

• Check related service bulletins for information.
Is DTC detected?

YES

>> GO TO 6.

NO

>> GO TO 7.

6.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC CONFIRMATION PROCEDURE for the DTC.

>> GO TO 8.

7.

PERFORM DIAGNOSIS ACCORDING TO WARNING LAMP OPERATION

1.

Check air bag warning lamp operation in the user mode. Refer to 

SRC-7, "On Board Diagnosis Function"

. 

2.

Perform Diagnosis Procedure for the air bag warning lamp operation. Refer to 

SRC-7, "On Board Diagno-

sis Function"

 (USER MODE).

>> GO TO 9.

8.

DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the DTC.

>> GO TO 9.

9.

REPAIR OR REPLACE THE MALFUNCTION PART

Repair or replace the malfunctioning part.

SRC-16

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

>> GO TO 10.

10.

FINAL CHECK

Check self diagnostic result and air bag warning lamp operation in the user mode.

Is the malfunction repaired?

YES

>> INSPECTION END

NO 

>> GO TO 2.

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

SRC-17

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000005987849

• It detects a shock that is more than the specified level and monitors whether the driver air bag operates nor-

mally. 

• It contains the “G” sensor for frontal collisions and spare battery function in case of main battery damage in

collision.

DTC Logic

INFOID:0000000005987850

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “AIR BAG” Self Diagnostic Result.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to 

SRC-7, "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-17, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005987851

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 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-29, "Removal and Installation"

.

DTC

Display contents of 

CONSULT-III

DTC detecting condition

Possible cause

B1001
B1002
B1003
B1004
B1005

CONTROL UNIT

Air bag diagnosis sensor unit is malfunctioning

Malfunction in air bag diagnosis sensor unit

SRC-18

< DTC/CIRCUIT DIAGNOSIS >

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

2.

Perform DTC confirmation procedure. Refer to 

SRC-17, "DTC Logic"

.

Is DTC detected?

YES

>>  GO TO 1.

NO

>> INSPECTION END