Nissan Qashqai (2007-2010). Manual - part 780

SRS AIR BAG SYSTEM

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< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

SRS AIR BAG SYSTEM

System Diagram

INFOID:0000000001069738

System Description

INFOID:0000000001069739

This SRS Air Bag System has the following function.

1.

Detect crash and supply the energy for deploying air bag and seat belt pre-tensioner.

2.

Detect electrical trouble in air bag system and seat belt pre-tensioner system, record trouble code, and
blinking air bag warning lamp.

JMHIA0215GB

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< FUNCTION DIAGNOSIS >

SRS AIR BAG SYSTEM

3.

Detect and record the deployment of air bag and seat belt pre-tensioner, and turn on air bag warning
lamp.

4.

Indicate malfunctioning portion with blinking times of air bag warning lamp in diagnosis mode.

5.

Indicate the malfunctioning record by CONSULT-III.

Component Parts Location

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JMHIA0217ZZ

1. Front passenger air bag module

2. Driver air bag module

3. Spiral cable

4.

Passenger air bag cut-off indica-
tor

5. Diagnosis sensor unit (ACU)

6. Front seat belt pre-tensioner2

7.

Side air bag (satellite) sensor 
(LH/RH)

8. Front seat belt pre-tensioner (LH/RH)

9. Seat belt buckle switch (LH/RH)

10.

Front side air bag module (LH/
RH)

11. Crash zone sensor

12. Side curtain air bag module (LH/RH)

SRS AIR BAG SYSTEM

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< FUNCTION DIAGNOSIS >

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Component Description

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• Air bag sensor are prepared for operation while the ignition switch is in the ON or START position.
• The operation of supplemental restraint system is different from collision modes applicastion. For example

the driver air bag module and front passenger air bag module are activated in a frontal collision but not in a
side collision.

• SRS configurations which are activated for some collision modes are as follows;

×

: Application,  —: Not application

JMHIA0216GB

SRS configuration

Frontal collision

Left side collision

Right side collision

Driver air bag module. Refer to 

SRC-194

×

—

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Front passenger air bag module. Refer to 

SRC-194

×

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Front LH seat belt pre-tensioner. Refer to 

SRC-194

×

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Front RH seat belt pre-tensioner. Refer to 

SRC-194

×

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Front LH seat belt pre-tensioner2. Refer to 

SRC-194

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Front LH side air bag module. Refer to 

SRC-196

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×

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Front RH side air bag module. Refer to 

SRC-196

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LH side curtain air bag module. Refer to 

SRC-196

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×

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RH side curtain air bag module. Refer to 

SRC-196

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—

×

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< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (AIRBAG)

DIAGNOSIS SYSTEM (AIRBAG)

Diagnosis Description

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CAUTION:

• Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

• Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a

new one.

• Keep ground portion clean.

DIAGNOSIS FUNCTION

• The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-III.
• The user mode is exclusively prepared for the customer (driver). This mode warns the driver of a system

malfunction through the operation of the “AIR BAG” warning lamp.

• The diagnosis mode allows the technician to locate and inspect the malfunctioning part.
• The mode applications for the “AIR BAG” warning lamp and CONSULT-III are as follows:

HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.

Information from Customer

• WHAT..... Vehicle model
• WHEN..... Date, Frequencies
• WHERE..... Road conditions
• HOW..... Operating conditions, Symptoms

Preliminary Check

Check that the following parts are in good order.
• Battery (Refer to 

PG-3, "How to Handle Battery"

.)

• Fuse (Refer to 

PG-71, "Fuse"

.)

• System component-to-harness connections

HOW TO ERASE SELF-DIAGNOSTIC RESULTS (With CONSULT-III)

• “SELF-DIAG [CURRENT]”

A current self-diagnosis result is displayed on CONSULT-IIl screen in real time.
After the malfunction is repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.

• “SELF-DIAG [PAST]”

Return to “SELF-DIAG [CURRENT]”CONSULT-lll screen by touching “BACK” key of CONSULT-III and
select “SELF-DIAG [CURRENT]” in SELECT DIAG MODE. Touch “ERASE” in “SELF-DIAG [CURRENT]”
mode.
NOTE:
If the memory of the malfunction in “SELF-DIAG [PAST]” is not erased, the user mode shows the system
malfunction by the operation of the warning lamp even if the malfunction is repaired completely.

• “TROUBLE DIAG RECORD”

The memory of “TROUBLE DIAG RECORD” cannot be erased.

HOW TO ERASE SELF-DIAGNOSTIC RESULTS (Without CONSULT-III)

After a malfunction is repaired, turn the ignition switch OFF for at least one second, then turn ignition switch
ON diagnosis mode returns to the user mode. At that time the self-diagnosis result is cleared.

User mode

Diagnosis mode

Display type

“AIR BAG” warning lamp

X

X

ON-OFF operation

CONSULT-III

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Monitoring