Nissan Murano. Manual - part 1289

SRC-4

< BASIC INSPECTION >

[FOR USA AND CANADA]

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

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OVERALL SEQUENCE

DETAILED FLOW

JMHIA1324GB

DIAGNOSIS AND REPAIR WORK FLOW

SRC-5

< BASIC INSPECTION >

[FOR USA AND CANADA]

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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-15, "On Board Diagnosis Function"

.

Are any malfunction detected?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK LOW VOLTAGE

Check low voltage. Refer to 

PG-3, "How to Handle Battery"

.

Are any malfunction detected?

YES

>> GO TO 9.

NO

>> Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

5.

CHECK SELF DIAGNOSTIC RESULTS

Check self diagnostic result with CONSULT 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.)
• 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-15, "On Board Diagnosis Func-

tion"

. 

2.

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

SRC-15, "On Board Diag-

nosis 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

SRC-6

< BASIC INSPECTION >

[FOR USA AND CANADA]

DIAGNOSIS AND REPAIR WORK FLOW

Repair or replace the malfunctioning part.

>> 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.

SRS AIR BAG SYSTEM

SRC-7

< SYSTEM DESCRIPTION >

[FOR USA AND CANADA]

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SYSTEM DESCRIPTION

SRS AIR BAG SYSTEM

System Diagram

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System Description

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Supplemental Restraint System (SRS) activates air bag module and seal belt pre-tensioner when it detects a
frontal collision or a side collision that is more than the specified limit. Together with other safety devices, it
reduces the impact that occupant receives when vehicle collision occurs.
Air bag diagnosis sensor unit supplies power supply to air bag module and pre-tensioner seat belt when decel-
eration that is more than the specified limit is detected by G sensor in air bag diagnosis sensor unit, crash
zone sensor, or satellite sensor. Air bag module is composed of electric igniter (squib), filter, pyrotechnic mate-
rial, and gas generating material. When air bag module receives a signal from air bag diagnosis sensor unit,
air bag module ignites pyrotechnic material using electric igniter (squib) so that gas generating material gener-
ates high temperature nitrogen gas. The gas through filter activates air bag and seat belt pre-tensioner.

AIR BAG DIAGNOSIS SENSOR UNIT FUNCTIONS

Air bag diagnosis sensor unit has the following functions.
• Detects a collision and supplies the energy for deploying air bag and seat belt pre-tensioner.
• Detects and records electrical malfunction in air bag system and seat belt pre-tensioner system, and blinking

air bag warning lamp.

• Detects and records the deployment of air bag and seat belt pre-tensioner, and turns ON air bag warning

lamp.

JMHIA1410GB