Nissan Qashqai (2007-2010). Manual - part 1474

DEF-72

< SYMPTOM DIAGNOSIS >

REAR WINDOW DEFOGGER SWITCH DOES NOT LIGHT, BUT REAR WINDOW 

DEFOGGER OPERATES

REAR WINDOW DEFOGGER SWITCH DOES NOT LIGHT, BUT REAR WIN-
DOW DEFOGGER OPERATES

Diagnosis Procedure

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1.

CHECK REAR WINDOW DEFOGGER ON SIGNAL

Check rear window defogger ON signal.
With auto A/C. Refer to 

DEF-23, "WITH AUTO A/C : Component Function Check"

.

Without auto A/C. Refer to 

DEF-24, "WITHOUT AUTO A/C : Component Function Check"

.

Is the inspection result normal?

YES

>> Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Repair or replace the malfunctioning parts.

PRECAUTIONS

DEF-73

< PRECAUTION >

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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.

DEF-74

< ON-VEHICLE MAINTENANCE >

PRE-INSPECTION FOR DIAGNOSTIC

ON-VEHICLE MAINTENANCE

PRE-INSPECTION FOR DIAGNOSTIC

Basic Inspection

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BASIC INSPECTION

1.

INSPECTION START

1.

Check the service history.

2.

Check the following parts.

• Fuse/circuit breaker blown.
• Poor connection, open or short circuit of harness connector.
• Battery voltage.

Is the inspection result normal?

YES

>> Inspection end.

NO

>> Repair or replace the malfunctioning parts.

FILAMENT

DEF-75

< ON-VEHICLE REPAIR >

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ON-VEHICLE REPAIR

FILAMENT

Inspection and Repair

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INSPECTION

1.

When measuring voltage, wrap tin foil around the top of the neg-
ative probe. Then press the foil against the wire with your finger.

2.

Attach probe circuit tester (in Volt range) to middle portion of
each filament.

3.

If a filament is burned out, circuit tester registers 0 or battery
voltage.

4.

To locate burned out point, move probe to left and right along fil-
ament. Test needle will swing abruptly when probe passes the
point.

REPAIR

REPAIR EQUIPMENT

• Conductive silver composition (Dupont No. 4817 or equivalent)

SEL122R

SEL263

SEL265