2008 NISSAN TIIDA connector d2

SRS-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001703904
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.
Precaution for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000001703905
• 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 both battery cables and wait at least 3 min-
utes.
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, do not work on any SRS connectors or wires until at least 3 minutes have
passed.
• The air bag diagnosis sensor unit must always be installed with the arrow mark “⇐” pointing toward the front
of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or 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.
• Do not reuse center pillar upper garnish if removed.
Occupant Classification System PrecautionINFOID:0000000001703906
Replace control unit and passenger front seat cushion as an assembly.

SRS-6
< SYMPTOM DIAGNOSIS >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Direct-connect SRS Component Connectors
INFOID:0000000001703914
The following SRS components use direct-connect style harness connectors.
• Driver air bag module
• Passenger air bag module
• LH side curtain air bag module
• RH side curtain air bag module
• Front LH seat belt pre-tensioner
• Front RH seat belt pre-tensioner
Always pull up to release the locking tab prior to removing connector from SRS component.
Always push down to lock the locking tab after installing connector to
SRS component. When locked, the locking tab is level with the con-
nector housing.
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TROUBLE DIAGNOSIS
SRS-31
< SYMPTOM DIAGNOSIS >
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1.CHECK CONDITION OF AIR BAG MODULE
Inspect for any deployed air bag modules or seat belt pre-tensioners.
Are any air bag modules or seat belt pre-tensioners deployed?
Yes >> Refer to SRS-46.
No >> GO TO 2.
2.CHECK THE AIR BAG FUSE
Check 10A fuse [No. 1, located in the fuse block (J/B)].
Refer to PG-3
.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.CHECK AIR BAG FUSE AGAIN
Replace 10A fuse [No. 1, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
Yes >> Repair harness.
No >> Inspection End.
4.CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Connect CONSULT-III and touch “START”.
Is
“AIR BAG” displayed on CONSULT-III?
Yes >> GO TO 5.
No >> Visually inspect the air bag diagnosis sensor unit harness connections. If the connections are OK,
replace the air bag diagnosis sensor unit. Refer to SRS-44, "
Removal and Installation".
5.CHECK HARNESS CONNECTION
Check for loose connections between the combination meter and the air bag diagnosis sensor unit.
OK or NG
OK >> Replace air bag diagnosis sensor unit. Refer to SRS-44, "Removal and Installation".
NG >> Properly connect the combination meter and air bag diagnosis sensor unit harness connectors. If
“AIR BAG” warning lamp still does not turn off, replace the wiring harness.
Trouble Diagnosis: "AIR BAG" Warning Lamp Does Not Turn OnINFOID:0000000001703925
DIAGNOSTIC PROCEDURE 8
1.CHECK METER FUSE
Check the 10A fuse [No. 13, located in the fuse block (J/B)] .
Refer to PG-3
.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.REPLACE METER FUSE AND CHECK AGAIN
Replace 10A fuse [No. 13, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
Yes >> Replace harness.
No >> Inspection End.
3.CHECK HARNESS CONNECTIONS BETWEEN AIR BAG DIAGNOSIS SENSOR UNIT AND COMBINA-
TION METER
Inspect the harness and connectors between the air bag diagnosis sensor unit and the combination meter.
Do the harness or connectors have any visible damage?
Yes >> Replace harness.

SRS-32
< SYMPTOM DIAGNOSIS >
TROUBLE DIAGNOSIS
No >> GO TO 4.
4.CHECK COMBINATION METER
Disconnect the air bag diagnosis sensor unit harness connectors and turn ignition switch ON.
Does
“AIR BAG” warning lamp turn on?
Yes >> Replace the air bag diagnosis sensor unit. Refer to SRS-44, "Removal and Installation".
No >> Replace the combination meter. Refer to IP-11, "
Removal and Installation".

DRIVER AIR BAG MODULE
SRS-33
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
DRIVER AIR BAG MODULE
Removal and InstallationINFOID:0000000001703926
REMOVAL
WARNING:
• When servicing the SRS, do not work from directly in front of air bag module.
• Always place air bag module with pad side facing upward.
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, discon-
nect both battery cables, then wait at least 3 minutes.
• Do not attempt to repair or replace damaged direct-connect
SRS component connectors. If a driver air bag direct-connect
harness connector is damaged, the spiral cable must be
replaced.
• Do not insert any foreign objects (screwdriver, etc.) into air
bag module or harness connectors.
• Do not disassemble air bag module.
• Do not expose the air bag module to temperatures exceeding
90°C (194°F).
• Replace the air bag module if it has been dropped or sus-
tained an impact.
• Do not allow oil, grease or water to come in contact with the
air bag module.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Remove the covers RH/LH.
3. Place the steering wheel in the straight ahead position.
LHIA0108E
1. Driver air bag module 2. Steering wheel 3. Cover
Pawl
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SRS-34
< ON-VEHICLE REPAIR >
DRIVER AIR BAG MODULE
4. Release the driver air bag module retaining clips RH/LH.
• Insert suitable 4mm - 6mm blunt tool (A) through LH access
hole on back side of steering wheel (1) and contact retaining
clip.
CAUTION:
Do not use sharp edged objects such as screwdrivers to
release driver air bag module from steering wheel, SRS
components may be unintentionally damaged.
• Press tool inward with sufficient force on retaining clip (1) to
release LH pawl of driver air bag module from steering wheel.
• Repeat for RH pawl of driver air bag module from steering
wheel.
• Tilt top edge away from steering wheel, then lift upward releas-
ing lower pawl of driver air bag module from steering wheel.
5. Disconnect driver air bag module connectors (1) and horn con-
nector (2).
• For removal/installation of the direct-connect SRS connectors,
refer to SRS-6, "
Direct-connect SRS Component Connectors".
INSTALLATION
Installation is in the reverse order of removal.
• For removal/installation of the direct-connect SRS connectors, refer to SRS-6, "
Direct-connect SRS Compo-
nent Connectors".
• If driver air bag module is being replaced due to deployment, spiral cable must also be replaced. Refer to
SRS-36
.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS-
18, "SRS Operation Check".
CAUTION:
LHIA0109E
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SRS-36
< ON-VEHICLE REPAIR >
SPIRAL CABLE
SPIRAL CABLE
Removal and InstallationINFOID:0000000001703927
REMOVAL
WARNING:
When servicing the SRS, do not work from directly in front of air bag module.
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least
3 minutes.
• Do not tap or bump the steering wheel.
• Do not disassemble the spiral cable.
• Do not allow oil, grease or water to come in contact with the spiral cable.
• Replace the spiral cable if it has been dropped or sustained an impact.
• With the steering linkage disconnected, the spiral cable may snap by turning the steering wheel
beyond the limited number of turns. The spiral cable can be turned counterclockwise about 2.5 turns
from the neutral position.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Set the front wheels to the straight-ahead/neutral position.
3. Remove the steering wheel. Refer to PS-6
.
4. Remove the column cover upper and lower.
5. Disconnect wiper and washer switch connector (1). Then while
pressing tabs (2), pull wiper and washer switch away from spiral
cable to remove.
LHIA0113E
1. Nut, refer to PS-62. Steering wheel 3. Lighting and turn signal switch
4. Spiral cable 5. Driver air bag module connectors 6. Wiper and washer switch
7. Column cover lower 8. Steering lock escutcheon 9. Steering column assembly
10. Column cover upper Pawl
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SPIRAL CABLE
SRS-37
< ON-VEHICLE REPAIR >
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6. Disconnect lighting and turn signal switch connector (1). Then
while pressing tabs (2), pull lighting and turn signal switch
toward driver door to remove.
7. Remove the screws, then release the tab at the top and pull the
spiral cable away from the steering column assembly.
8. Disconnect spiral cable connectors.
INSTALLATION
Installation is in the reverse order of removal.
• Align spiral cable correctly when installing steering wheel, refer to
PS-6
. Make sure spiral cable alignment and centering marks (B)
are matched and in the neutral position. The neutral position is
detected by turning left 2.6 revolutions from the right end position,
ending with the locating pin (A) at the top. Place steering wheel in
straight ahead position, then install it with the locating pin hole (C)
directly over spiral cable locating pin.
• After the work is completed, perform self-diagnosis to make sure
no malfunction is detected. Refer to SRS-18, "
SRS Operation
Check".
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