NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGWT-43
< SYMPTOM DIAGNOSIS >
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000012432464
Use chart below to find the cause of the symptom . If necessary, repair or replace these parts.
×: Applicable
Reference page
WT-44WT-44WT-45WT-54FSU-8—
—
WT-54FSU-5FA X - 6RAX-4RSU-4—
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FA X - 6BR-7ST-7
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Out-of-round
Imbalance
Incorrect tire pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEELS
DRIVE SHAFT
BRAKE
STEERING
Symptom TIRENoise
××××××× × × ××××
Shake ×××××× × × × ××××
Vibration ××××××
Shimmy ×××××××× × × × ××
Shudder ×
××××× × × × × ××
Poor quality ride or
handling ×××××× × × ××
WHEEL Noise
××× × × × × ×××
Shake ××× × × × × ×××
Shimmy, Shudder ×××× ×××××
Poor quality ride or
handling ×× × ×
× × ×
Revision: August 2015 2016 Versa Note
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SRC-4
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012430587
The Supplemental Restraint System such as “A IR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 three minutes before performing any service.
ServiceINFOID:0000000012430588
• Never use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OF F, disconnect battery negative terminal and wait 3 minutes
or more.
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, never work on any SR S connectors or wires until at least 3 minutes have
passed.
• Diagnosis sensor unit must always be installed with their arrow marks “ ⇐” pointing towards the front of the
vehicle for proper operation. Also chec k diagnosis sensor unit for cracks, deformities or rust before installa-
tion and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Never 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.
• Never solder the harness when making repairs. Check that harness is not pinched and that there is no con-
tact with other components.
• Never allow harness to come in contact with oil, grease, waste oil, or water.
• Never insert foreign materials, such as a screwdriver, into the harness connector. (This is to prevent acci- dental activation caused by static electricity.)
• Always use CONSULT or SRS air bag warning lamp to perform the circuit diagnosis. (Never use an electric tester such as a circuit tester.)
Revision: August 2015 2016 Versa Note
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SRC-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Driver Air Bag Module
INFOID:0000000012430590
The driver air bag module is single or dual stage and located in the steering wheel assembly. It operates with
the SRS system in a frontal collision exceeding a specified level.
Front Passenger Air Bag ModuleINFOID:0000000012430591
The front passenger air bag module is dual stage and is located
behind the instrument panel assembly. It operates with the SRS sys-
tem in a frontal collision exceeding a specified level. Refer to SRC-
10, "SRS AIR BAG SYSTEM : System Description" for more infor-
mation.
A. View with RH rear lower luggage
finisher removed B. View with headlining removed C. RH front passenger seat
D. Occupant classification system E. Radiator core support assembly F. Instrument panel
G. View with front LH door finisher removed H. View with center console trim
removed I. View with lower B-pillar trim removed
No. Component Function
1. Rear side air bag satellite sensor RH (LH similar) Refer to SRC-8, "
Rear Side Air Bag Satellite Sensor".
2. Side curtain air bag modules Refer to SRC-7, "
Side Curtain Air Bag Module".
3. Front side air bag module Refer to SRC-7, "
Front Side Air Bag Module".
4. Occupant classification system control unit Refer to SRC-11, "
OCCUPANT CLASSIFICATION SYSTEM : System
Description".
5. Occupant classification system sensors Refer to SRC-11, "
OCCUPANT CLASSIFICATION SYSTEM : System
Description".
6. Crash zone sensor Refer to SRC-8, "
Crash Zone Sensor".
7. Spiral cable The spiral cable provides a rotating physical connection to the driver air
bag module.
8. Drivers air bag module Refer to SRC-6, "
Driver Air Bag Module".
9. Front passenger air bag module Refer to SRC-6, "
Front Passenger Air Bag Module".
10. Front door satellite sensor Refer to SRC-8, "
Front Door Satellite Sensor".
11. Seat belt buckle switch LH (RH similar) The seat belt buckle switches (LH/RH) provide the seat belt buckle
signals to the air bag diagnosis sensor unit and the combination meter.
12. Air bag diagnosis sensor unit Refer to SRC-7, "
Air Bag Diagnosis Sensor Unit".
13. Front seat belt pre-tensioner LH (RH similar) Refer to SRC-7, "
Front Seat Belt Pre-tensioner".
14. Front side air bag satellite sensor Refer to SRC-8, "
Front Side Air Bag Satellite Sensor".
AWHIA0713GB
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Revision: August 2015 2016 Versa Note
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SR-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012430560
The Supplemental Restraint System such as “A IR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 three minutes before performing any service.
ServiceINFOID:0000000012430561
• Do not use electrical test equipment to check SRS ci rcuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least three
minutes.
For approximately three minutes after the cables are remo ved, 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 three minutes
have passed.
• Diagnosis sensor unit must always be installed with their arrow marks “ ⇐” pointing towards the front of the
vehicle for proper operation. Also chec k diagnosis sensor unit for cracks, deformities or rust before installa-
tion and replace as required.
• The spiral cable must be aligned with 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 instrument panel assembly should be replaced if damaged.
• Always replace instrument panel pad following front passenger air bag deployment.
Precaution for WorkINFOID:0000000012430562
• When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a shop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusable part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
Revision: August 2015 2016 Versa Note
cardiagn.com
COLLISION DIAGNOSISSR-5
< BASIC INSPECTION >
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BASIC INSPECTION
COLLISION DIAGNOSIS
For Frontal CollisionINFOID:0000000012430564
FOR FRONTAL COLLISION: When SRS is activated in a collision
CAUTION:
Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles.
WORK PROCEDURE
1. Before performing any of the following steps, ensur e that all vehicle body and structural repairs have been
completed.
2. Replace the diagnosis sensor unit.
3. Remove the front air bag modules, crash zone sens or assembly, bracket and seat belt pre-tensioner
assemblies.
4. Check the SRS components using the table below:
Replace any SRS components showing visible signs of damage. (dents, cracks and deformation, etc.)
5. Install new front air bag modules, crash zone sens or assembly, bracket and seat belt pre-tensioner
assemblies.
6. Perform self-diagnosis using CONSULT or air bag warning lamp. Refer to SRC-14, "
Description" for
details.
Ensure entire SRS operates properly.
7. After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRC-14, "
Description".
SRS INSPECTION (FOR FRONTAL COLLISION)
Part Inspection
Driver air bag module If the driver air bag has deployed:
REPLACE
Install with new fasteners.
Front passenger air bag module
(if equipped) If the front passenger air bag has deployed:
REPLACE
Install with new fasteners.
Crash zone sensor If any of the front air bags or seat belt pre-tensioners* have been activated:
REPLACE the crash zone sensor and bracket with new fasteners.
*: Confirm seat belt pre-tensioner activation using CONSULT only.
Seat belt pre-tensioner assem-
blies
(All applicable locations: buckle,
retractor, lap outer) If either the driver or passenger seat belt pre-tensioner* has been activated:
REPLACE all seat belt pre-tensioner assemblies with new fasteners.
*: Confirm seat belt pre-tensioner activation using CONSULT only.
Diagnosis sensor unit If any of the SRS components have been activated:
REPLACE the diagnosis sensor unit.
Install with new fasteners.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for defor-
mities.
3. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall.
6. If damaged — REPLACE.
Spiral cable If the driver front air bag has deployed:
REPLACE the spiral cable.
Revision: August 2015 2016 Versa Note
cardiagn.com
SR-6
< BASIC INSPECTION >
COLLISION DIAGNOSIS
FOR FRONTAL COLLISION: When SRS is not activated in a collision
CAUTION:
Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles.
WORK PROCEDURE
1. Before performing any of the following steps, ensure that all vehicle body and structural repairs have been
completed.
2. Check the SRS components using the table below: Replace any SRS components showing visible signs of damage. (dents, cracks and deformation, etc.)
3. Perform self-diagnosis using CONSULT or air bag warning lamp. Refer to SRC-14, "
Description" for
details.
Ensure entire SRS operates properly.
4. After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRC-14, "
Description".
SRS INSPECTION (FOR FRONTAL COLLISION)
Occupant classification system
(Passenger seat) 1. Remove passenger seat assembly.
2. Check control unit case for dents, cracks of deformities.
3. Check connectors for damage and terminals for deformities.
4. Check seat frame and cushion pan for dents or deformities.
5. If no damage is found, reinstall seat with new fasteners.
6. If damaged — REPLACE seat cushion assembly with new fasteners.
7. Perform zero point reset function after front passenger seat is installed in the vehicle and all
bolts are tightened to specification. Refer to SRC-39, "
ZERO POINT RESET : Special Repair
Requirement".
Harness and connectors 1. Check connectors for poor connection, damage, and terminals for deformities. 2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. If damaged — REPLACE the damaged harness. Do not attempt to repair, splice or modify any SRS harness.
Instrument panel assembly If the passenger front air bag has deployed: REPLACE the instrument panel assembly. (integrated type)
Part
Inspection
Part Inspection
Driver air bag module If the driver air bag has NOT been activated:
1. Remove driver air bag module. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
2. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged — REPLACE. Install driver air bag modules with new fasteners.
Front passenger air bag module
(if equipped) If the front passenger air bag has NOT been activated:
1. Remove front passenger air bag module. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
2. Install front passenger air bag module into the instrument panel to check fit with the instrument panel.
3. If no damage is found, reinstall with new fasteners.
4. If damaged — REPLACE. Install front passenger air bag modules with new fasteners.
Crash zone sensor If the front air bags or seat belt pre-tensioners have NOT been activated:
1. Remove the crash zone sensor. Check harness connectors for damage, terminals for defor-
mities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the crash zone sensor and bracket.
3. Install the crash zone sensor to check fit.
4. If no damage is found, reinstall with new fasteners.
5. If damaged — REPLACE the crash zone sensor and bracket with new fasteners.
Revision: August 2015 2016 Versa Note
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COLLISION DIAGNOSISSR-7
< BASIC INSPECTION >
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For Side and Rollover CollisionINFOID:0000000012430565
FOR SIDE AND ROLLOVER COLLISION: When SRS is activated in a collision
CAUTION:
Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles.
WORK PROCEDURE
1. Before performing any of the following steps, ensur e that all vehicle body and structural repairs have been
completed.
2. Replace the following components:
- Front seat back assembly (on the side on which side air bag is activated).
- Door finisher (on the side on which door-mounted curtain air bag is activated).
- Pop-up roll bar assemblies and pop-up roll bar covers.
- Side air bag (satellite) sensor LH/RH (on the side on which side air bag is activated).
Seat belt pre-tensioner assem-
blies
(All applicable locations: buckle,
retractor, lap outer)If the pre-tensioners have NOT been activated:
1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and harness for
binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. Check for deformities of the center pillar inner.
6. If no damage is found, reinstall seat belt pre-tensioner assembly with new fasteners.
7. If damaged —REPLACE. Install the seat belt pre-tensioner assembly with new fasteners.
Diagnosis sensor unit If none of the SRS components have been activated:
1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new fasteners.
4. If damaged — REPLACE. Install diagnosis sensor unit with new fasteners.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for defor-
mities.
3. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall.
6. If damaged — REPLACE.
Spiral cable If the driver front air bag has not deployed:
1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall.
5. If damaged — REPLACE.
Occupant classification system
(Passenger seat) 1. Remove passenger seat assembly.
2. Check control unit case for dents, cracks of deformities.
3. Check connectors for damage and terminals for deformities.
4. Check seat frame and cushion pan for dents or deformities.
5. If no damage is found, reinstall seat with new fasteners.
6. If damaged — REPLACE seat cushion assembly with new fasteners.
7. Perform zero point reset function after front passenger seat is installed in the vehicle and all
bolts are tightened to specification. Refer to SRC-39, "
ZERO POINT RESET : Special Repair
Requirement".
Harness and connectors 1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. If damaged ——REPLACE the damaged harness. Do not attempt to repair, splice or modify
any SRS harness.
Instrument panel assembly If the passenger front air bag has NOT deployed: 1. Visually check instrument panel for damage.
2. If no damage is found, reinstall the instrument panel assembly.
3. If damaged—REPLACE the instrument panel assembly.
Part
Inspection
Revision: August 2015 2016 Versa Note
cardiagn.com
SR-12
< REMOVAL AND INSTALLATION >
DRIVER AIR BAG MODULE
REMOVAL AND INSTALLATION
DRIVER AIR BAG MODULE
Exploded ViewINFOID:0000000012542556
TYPE 1
TYPE 2
Removal and InstallationINFOID:0000000012542557
WARNING:
• Before servicing the SRS, turn ignition switch OFF, disconnect bot h battery terminals then wait at
least three minutes.
• Always work from the side of driver air bag module. Do not work in front of it.
• If driver air bag module is being replaced due to deployment, the spiral cable must also be replaced.
Refer to SR-16, "
Removal and Installation".
• Do not insert any foreign objects (screwdriver, etc.) into the driver air bag module.
• Do not attempt to disassemble the driver air bag module.
• Do not expose the driver air bag module to temperatures exceeding 90° C (194°F).
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1. Steering wheel 2. Driver air bag module
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1. Steering wheel 2. Driver air bag module
Revision: August 2015 2016 Versa Note
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