Nissan Murano. Manual - part 1308

SRC-80

< SYMPTOM DIAGNOSIS >

[FOR USA AND CANADA]

SRS AIR BAG WARNING LAMP DOES NOT TURN ON

SRS AIR BAG WARNING LAMP DOES NOT TURN ON

Diagnosis Procedure

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1.

CHECK METER FUSE

Check the meter fuse. Refer to 

PG-92, "Fuse and Fusible Link Arrangement"

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

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK METER FUSE AGAIN

Replace 10A fuse [No.4, located in fuse block (J/B)] and turn ignition switch ON.
Did the meter fuse blow again?

YES

>> Repair or replace the related harness.

NO

>> INSPECTION END

3.

CHECK HARNESS CONNECTION

1.

Check harness connection between air bag diagnosis sensor unit and combination meter.

2.

Disconnect air bag diagnosis sensor unit connector and turn ignition switch ON.

Did air bag warning lamp turn ON?

YES

>> Replace air bag diagnosis sensor unit. Refer to 

SR-26, "Removal and Installation"

.

NO

>> Replace combination meter assembly. Refer to 

MWI-105, "Removal and Installation"

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PASSENGER SEAT BELT WARNING SYSTEM

SRC-81

< SYMPTOM DIAGNOSIS >

[FOR USA AND CANADA]

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PASSENGER SEAT BELT WARNING SYSTEM

Diagnosis Procedure

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1.

CHECK THE SYSTEM 1

Check the seat belt warning lamp function.

Seat belt warning lamp turns ON in the following conditions.
• Driver seat belt is fastened.
• Occupant is on front passenger seat.
• Front passenger seat belt is not fastened. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>>

Check the followings.

• Harness between air bag diagnosis sensor unit and combination meter.
• Seat belt buckle switch (front passenger side) circuit.
• Seat belt buckle switch (front passenger side).

If these are OK, replace air bag diagnosis sensor unit.

2.

CHECK THE SYSTEM 2

Check the seat belt warning lamp function.

Seat belt warning lamp turns OFF in the following conditions.
• Driver seat belt is fastened.
• Occupant is on front passenger seat.
• Front passenger seat belt is fastened.

Is the inspection result normal?

YES

>> System is OK.

NO

>>

Check the followings.

• Seat belt buckle switch (front passenger side) circuit.
• Seat belt buckle switch (front passenger side).

If these are OK, replace air bag diagnosis sensor unit.

SRC-82

< PRECAUTION >

[FOR USA AND CANADA]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precautions for Removing of Battery Terminal

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•  When removing the 12V battery terminal, turn OFF the ignition

switch and wait at least 30 seconds.
NOTE:
ECU may be active for several tens of seconds after the ignition
switch is turned OFF. If the battery terminal is removed before ECU
stops, then a DTC detection error or ECU data corruption may
occur.

•  For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be
detected.

•  After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

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 AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that 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 “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

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

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

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 battery negative terminal and wait at least 3

minutes.

SEF289H

PRECAUTIONS

SRC-83

< PRECAUTION >

[FOR USA AND CANADA]

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For approximately 3 minutes after the battery negative terminal is 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 functioning 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.

Occupant Classification System Precaution

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• Replace occupant classification system control unit and passenger front seat cushion as an assembly.

Refer to 

SE-98, "Removal and Installation"

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