Nissan Qashqai (2007-2010). Manual - part 833

DIAGNOSIS SENSOR UNIT

SRC-219

< ECU DIAGNOSIS >

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JCHWA0047GB

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< SYMPTOM DIAGNOSIS >

SRS AIR BAG SYSTEM

SYMPTOM DIAGNOSIS

SRS AIR BAG SYSTEM

Symptom Table

INFOID:0000000001069920

“SRS AIR BAG” Warning Lamp Does Not Turn OFF

1.

CHECK THE DEPLOYMENT OF AIR BAG MODULE

Is “AIR BAG” module deployed?

YES

>> Refer to 

SRC-194, "Diagnosis Procedure (Component diagnosis)"

. 

NO

>> GO TO 2.

2.

CHECK THE AIR BAG FUSE

Refer to 

PG-71, "Fuse"

.

Check 10A fuse [No.2, located in fuse block (J/B)].

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

CHECK AIR BAG FUSE AGAIN

Replace “AIR BAG” fuse and turn ignition switch ON.

Does the “AIR BAG” fuse blow again?

YES

>> Repair or replace main harness.

NO

>> INSPECTION END

4.

CHECK DIAGNOSIS SENSOR UNIT

Is “AIR BAG” displayed on CONSULT-III?

YES

>> GO TO 5.

NO

>> Visually check the wiring harness connection of diagnosis sensor unit. If the harness connection

check result is OK, replace diagnosis sensor unit.

5.

CHECK HARNESS CONNECTION

Is harness connections between warning lamp and diagnosis sensor unit?

OK

>> Replace diagnosis sensor unit.

NG

>> Connect “AIR BAG” warning lamp and diagnosis sensor unit connector properly. If “AIR BAG”

warning lamp still does not go off, replace harness.

“SRS AIR BAG” Warning Lamp Does Not Turn ON

1.

CHECK METER FUSE

Refer to 

PG-71, "Fuse"

.

Check 10A fuse [No.4, located in fuse block (J/B)].

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

CHECK METER FUSE AGAIN

Replace meter fuse and turn ignition switch ON.

Does the meter fuse blow again?

YES

>> Repair or replace the related harness.

NO

>> INSPECTION END

SRS AIR BAG SYSTEM

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< SYMPTOM DIAGNOSIS >

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CHECK HARNESS CONNECTION BETWEEN DIAGNOSIS SENSOR UNIT AND COMBINATION METER

Disconnect diagnosis sensor unit connector and turn ignition switch ON.
Does AIR BAG warning lamp turn ON?

YES

>> Replace diagnosis sensor unit.

NO

>> Replace combination meter assembly.

SRC-222

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.

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

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

Service

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• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-

utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-
tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have
elapsed.

• Diagnosis sensor unit must always be installed with their arrow marks “

⇐

” pointing towards the front of the

vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installa-
tion and replace as required.

• The spiral cable must be aligned in the neutral position since its rotations are limited. Do not turn steering

wheel and column after removal of steering gear.

• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side

facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.

• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
• Always replace instrument panel pad following front passenger air bag deployment.