2003 NISSAN ALMERA N16 maintenance

SRS797-A
Maintenance ItemsNJRS0012CAUTION:
Do not use electrical test equipment to check SRS circuit.
1. Check operation of “AIR BAG” warning lamp.
After turning ignition key to “ON” position, “AIR BAG” warning
lamp illuminates. The “AIR BAG” warning lamp will go off after
about 7 seconds if no malfunction is detected. If any of the fol-
lowing “AIR BAG” warning lamp conditions occur, immediately
check the air bag system. Refer to RS-49 for details.
The “AIR BAG” warning lamp does not illuminate when the
ignition switch is turned “ON”.
The “AIR BAG” warning lamp does not go off about 7 seconds
after the ignition switch is turned “ON”.
The “AIR BAG” warning lamp blinks after about 7 seconds after
the ignition switch is turned “ON”.
2. Visually check SRS components.
1) Diagnosis sensor unit
Check diagnosis sensor unit and bracket for dents, cracks and
deformities.
Check connectors for damage, and terminals for deformities.
2) Air bag module and steering wheel
Remove air bag module from steering wheel, instrument panel
or seatback. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
Install driver air bag module to steering wheel to check fit or
alignment with the wheel.
Check steering wheel for excessive free play.
Install front passenger air bag module to instrument panel to
check fit or alignment with the instrument panel.
Install front side air bag module to seatback to check fit and
alignment with the seat.
3) Spiral cable
Check spiral cable for dents, cracks, or deformities.
Check connectors and protective tape for damage.
Check steering wheel for noise, binding or heavy operation.
4) Main harness, body harness, side air bag module sub-harness
Check connectors for poor connections, damage, and termi-
nals for deformities.
Check harnesses for binding, chafing or cut.
5) Front seat belt pre-tensioner
Check harness cover and connectors for damage, terminals
for deformities, and harness for binding.
Check belts for damage and anchors for loose mounting.
Check retractor for smooth operation.
Perform self-diagnosis for seat belt pre-tensioner using “AIR
BAG” warning lamp or CONSULT-II.
Refer to “SRS Operation Check” for details. (RS-49)
6) Side air bag (satellite) sensor
Check side air bag (satellite) sensor (including bracket portion)
for dents, cracks or deformities.
Check connectors for damage, and terminals for deformities.
CAUTION:
Replace previously used special bolts, hex bolts and ground
bolt with new ones.
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Maintenance Items
RS-25

DIAGNOSTIC PROCEDURE 4 (CONTINUED FROM
DIAGNOSTIC PROCEDURE 2)
=NJRS0048S03Inspecting SRS malfunctioning record
1 CONSIDER POSSIBILITY OF NOT ERASING SELF-DIAGNOSTIC RESULT AFTER REPAIRING
Is it the first time for maintenance of SRS?
YesorNo
Yes Go to DIAGNOSTIC PROCEDURE 5 (RS-56).
No Self-diagnostic result “SELF-DIAG [PAST]” (previously stored in the memory) might not
be erased after repair. Go to DIAGNOSTIC PROCEDURE 3, step 8 (RS-54).
SRS834-A
SRS872
DIAGNOSTIC PROCEDURE 5NJRS0048S04Inspecting SRS intermittent malfunction by using CONSULT-II
— Diagnosis mode
1. Turn ignition switch “OFF”.
2. Connect CONSULT-II to data link connector.
SRS695
3. Turn ignition switch “ON”.
4. Touch “START”.
SRS771
5. Touch “AIR BAG”.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Trouble Diagnoses with CONSULT-II (Cont’d)
RS-56

“AIR BAG” warning lamp operation — User mode — SRS condition Reference item
MRS095A
No malfunction is
detected.
No further action is neces-
sary.—
MRS096A
The system is malfunc-
tioning and needs to be
repaired as indicated.Go to DIAGNOSTIC PRO-
CEDURE 6 (RS-60).
MRS097A
Air bag is deployed.
Seat belt pre-tensioner is
deployed.Go to COLLISION DIAG-
NOSIS (RS-71).
Air bag fuse, diagnosis
sensor unit or harness is
malfunctioning and needs
to be repaired.Go to DIAGNOSTIC PRO-
CEDURE 9 (RS-68).
MRS098A
One of the following has
occurred and needs to be
repaired.
Meter fuse is blown.
“AIR BAG” warning
lamp circuit has open or
short.
Diagnosis sensor unit is
malfunctioning.Go to DIAGNOSTIC PRO-
CEDURE 10 (RS-70).
DIAGNOSTIC PROCEDURE 8 (CONTINUED FROM
DIAGNOSTIC PROCEDURE 6)
NJRS0049S03Inspecting SRS malfunctioning record
1 CONSIDER POSSIBILITY OF NOT ERASING SELF-DIAGNOSTIC RESULT AFTER REPAIRING
Is it the first time for maintenance of SRS?
YesorNo
Yes Go to DIAGNOSTIC PROCEDURE 5 (RS-56). (Further inspection cannot be performed
without CONSULT-II.)
No Diagnosis results (previously stored in the memory) might not be erasedafter repair. Go
to DIAGNOSTIC PROCEDURE 7, step 5 (RS-65).
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Trouble Diagnoses without CONSULT-II (Cont’d)
RS-67

Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”
NJSC0001The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL N16 is as follows (The compo-
sition varies according to the destination and optional equipment.):
For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
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 should be per-
formed by an authorized NISSAN dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removalofSpiralCableandAir
Bag Module, see the RS 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 harness connec-
tor.
Wiring Diagrams and Trouble DiagnosesNJSC0002When you read wiring diagrams, refer to the following:
GI-12, “HOW TO READ WIRING DIAGRAMS”
EL-12, “POWER SUPPLY ROUTING” for power distribution circuit
When you perform trouble diagnoses, refer to the following:
GI-33, “HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES”
GI-22, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”
PRECAUTIONS
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
SC-2

How to Handle BatteryNJSC0003CAUTION:
If it becomes necessary to start the engine with a booster
battery and jumper cables,
1) Use a 12-volt booster battery.
2) After connecting battery cables, ensure that they are
tightly clamped to battery terminals for good contact.
3) Never add distilled water through the hole used to check
specific gravity.
MEL040F
METHODS OF PREVENTING OVER-DISCHARGENJSC0003S01The following precautions must be taken to prevent over-discharg-
ing a battery.
The battery surface (particularly its top) should always be kept
clean and dry.
The terminal connections should be clean and tight.
At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.
MEL041F
When the vehicle is not going to be used over a long period of
time, disconnect the negative battery terminal.
MEL042F
Check the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep
a close check on charge condition to prevent over-discharge.
CHECKING ELECTROLYTE LEVELNJSC0003S02WARNING:
Do not allow battery fluid to come in contact with skin, eyes,
fabrics, or painted surfaces. After touching a battery, do not
touch or rub your eyes until you have thoroughly washed your
hands. If acid contacts eyes, skin or clothing, immediately
flush with water for 15 minutes and seek medical attention.
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BATTERY
How to Handle Battery
SC-3

Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”
NJST0044The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL N16 is as follows (The compo-
sition varies according to the destination and optional equipment.):
For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
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 should be per-
formed by an authorized NISSAN dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removalofSpiralCableandAir
Bag Module, see the RS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses (except “SEAT BELT PRE-TENSIONER” connector) can be
identified by yellow harness connector.
Precautions for Steering SystemNJST0003Before disassembly, thoroughly clean the outside of the unit.
Disassembly should be done in a clean work area. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
Place disassembled parts in order, on a parts rack, for easier and proper assembly.
Use nylon cloths or paper towels to clean the parts; common shop rags can leave lint that might
interfere with their operation.
Before inspection or reassembly, carefully clean all parts with a generalpurpose, non-flammable
solvent.
Before assembly, apply a coat of recommended power steering fluid* to hydraulic parts. Vaseline
may be applied to O-rings and seals. Do not use any grease.
Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals andgaskets during instal-
lation. Perform functional tests whenever designated.
*: DEXRON
TMIII or equivalent. Refer to MA-19, “Fluids and Lubricants”.
PRECAUTIONS
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
ST-2