Nissan Altima HL32 Hybrid. Manual - part 972

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< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER"

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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 SR 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 SR 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.

Necessary for Steering Wheel Rotation After Battery Disconnect

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NOTE:

• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-

tion, then disconnect both 12-volt battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both 12-

volt battery cables.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

This vehicle is equipped with a push-button ignition switch and a steering lock unit.

If the 12-volt battery is disconnected or discharged, the steering wheel will lock and cannot be turned.

If turning the steering wheel is required with the 12-volt battery disconnected or discharged, follow the proce-

dure below before starting the repair operation.

OPERATION PROCEDURE

1. Connect both 12-volt battery cables.

NOTE:

Supply power using jumper cables if 12-volt battery is discharged.

2. Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position.

(At this time, the steering lock will be released.)

3. Disconnect both 12-volt battery cables. The steering lock will remain released with both 12-volt battery

cables disconnected and the steering wheel can be turned.

4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both 12-volt battery cables. With the brake pedal released,

turn the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steer-

ing wheel will lock when the push-button ignition switch is turned to LOCK position.)

6. Perform self-diagnosis check of all control units using CONSULT-III.

Precaution for Seat Belt Service

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CAUTION:

• Before removing the front seat belt pre-tensioner assembly, turn the ignition switch off, disconnect

both 12-volt battery terminals and wait at least 3 minutes.

• Do not use electrical test equipment for front seat belt pre-tensioner connector.

PRECAUTIONS

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• After replacing or reinstalling front seat belt pre-tensioner assembly, or reconnecting front seat belt

pre-tensioner connector, check the system function. Refer to 

SRC-12, "SRS Operation Check"

.

• Do not disassemble buckle or seat belt assembly.

• Replace anchor bolts if they are deformed or worn out.

• Never oil tongue and buckle.

• If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt

assembly.

• If webbing is cut, frayed, or damaged, replace seat belt assembly.

• When replacing seat belt assembly, use a genuine NISSAN seat belt assembly.

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< BASIC INSPECTION >

COMPONENT INSPECTION

BASIC INSPECTION

COMPONENT INSPECTION

Inspection

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AFTER A COLLISION

WARNING:

Inspect all seat belt assemblies including retractors and attaching hardware after any collision.

NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced

unless the collision was minor and the belts show no damage and continue to operate properly. Fail-

ure to do so could result in serious personal injury in an accident. Seat belt assemblies not in use dur-

ing a collision should also be replaced if either damage or improper operation is noted. Seat belt pre-

tensioned should be replaced even if the seat belts are not in use during a frontal collision in which

the air bags are deployed.

Replace any seat belt assembly (including anchor bolts) if:

• The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and

buckles show no damage and continue to operate properly).

• The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.)

• The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage

or distortion and repair as necessary before installing a new seat belt assembly.

• Anchor bolts are deformed or worn out.

• The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in

which the air bags are deployed.

PRELIMINARY CHECKS

1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Switch ignition ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime should

sound for about six seconds.

b. Fasten driver's seat belt. The seat belt warning lamp should go out and the chime (if sounding) should

stop.

2. If the air bag warning lamp is blinking, conduct self-diagnosis using CONSULT-III, and air bag warning

lamp. Refer to 

SRC-12, "SRS Operation Check"

.

3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Check the shoulder seat belt guide and shoulder belt height adjuster for front seats. Make sure guide

swivels freely and that webbing lays flat and does not bind in guide. Make sure height adjuster operates

properly and holds securely.

5. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Make sure that webbing returns smoothly and completely into the retractor. If

the seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth. Dirt built up in

the loops of the upper anchors can cause the seat belts to retract slowly.

c.

Fasten the seat belt. Check that the seat belt returns smoothly and completely to the retractor. If the web-

bing does not return smoothly, the cause may be an accumulation of dust or dirt. Use the “SEAT BELT

TAPE SET” and perform the following steps. 

Inspect the front seat belt though-anchor 

1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.

2. Use a clip or other device to hold the seat belt at the center pillar webbing opening.

3. Pass a thin wire though the though-anchor webbing opening. Hold both ends of the wire and pull it

taunt while moving it up and down several times along the webbing opening surface to move matter

stuck there. 

4. Any dirt that can not be removed with the wire can be removed by cleaning the opening with a clean

cloth.

5. Apply tape at the point where the webbing contacts the though-anchor webbing opening. 

NOTE:

Apply the tape so that there is no looseness or wrinkling.

6. Remove the clip holding the seat belt and check that the webbing returns smoothly.

COMPONENT INSPECTION

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6. Repeat steps above as necessary to check the other seat belts.

SEAT BELT RETRACTOR ON-VEHICLE CHECK

Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)

NOTE:

All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)

the retractor will lock and prevent the webbing from extending any further. All 3-point type seat belt retractors

except the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also

called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt

is fully extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt

in a specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat

belt to fully wind back into the retractor.

Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating prop-

erly.

ELR Function Stationary Check

Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from

extending further.

ALR Function Stationary Check

1. Pull out entire length of seat belt from retractor until a click is heard.
2. Retract the webbing partially. A clicking noise should be heard as the webbing retracts indicating that the

retractor is in the Automatic Locking Retractors (ALR) mode.

3. Grasp the seat belt and try to pull out the retractor. The webbing must lock and not extend any further. If

NG, replace the retractor assembly.

4. Allow the entire length of the webbing to retract to cancel the automatic locking mode.

ELR Function Moving Check

WARNING:

Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a

large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on

wet or gravel roads or on public streets and highways. This could result in an accident and serious

personal injury. The driver and passenger must be prepared to brace themselves in the event the

retractor does not lock.
1. Fasten driver's seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop

and the driver and passenger must be prepared to brace themselves in the event the retractor does not

lock, apply brakes firmly and make a very hard stop.

During stop, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock, per-

form the retractor off-vehicle check.

SEAT BELT RETRACTOR OFF-VEHICLE CHECK (PILLAR MOUNTED)

1. Remove the seat belt retractor.

• Remove the front seat belt assembly, refer to 

SB-7, "Removal and Installation"

.

2. Slowly pull out webbing while tilting the retractor assembly forward from the mounted position without

twisting the retractor assembly as shown in the illustration.

A : The webbing can be pulled out in case the retractor is tilted

15

° degree or less.

B : The webbing can not be pulled out if the retractor is tilted 35

°

degrees or more.

• A and B show tilting angles.
•

 : Vehicle front.

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