Infiniti Q45. Manual — part 873
FRONT SEAT BELT PRE-TENSIONER
SRS-49
C
D
E
F
G
I
J
K
L
M
A
B
SRS
FRONT SEAT BELT PRE-TENSIONER
PFP:86884
Removal and Installation
NHS0004U
To removal and installation procedures, refer to
SRS-50
DIAGNOSIS SENSOR UNIT
DIAGNOSIS SENSOR UNIT
PFP:28556
Removal and Installation
NHS0004V
REMOVAL
CAUTION:
Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least 3
minutes.
1.
Disconnect each harness connector for the air bag module and seat belt pre-tensioner.
2.
Remove center console. Refer to
IP-10, "Removal and Installation"
.
3.
Disconnect diagnosis sensor unit connector.
4.
Remove the TORX bolts (T50).
CAUTION:
●
Do not use old bolts. Replace with new ones.
●
Check diagnosis sensor unit brackets to ensure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of damage, replace it with new one.
●
Replace diagnosis sensor unit if it has been dropped or sustained an impact.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
●
Check the diagnosis sensor unit for proper installation.
●
After replacement of diagnosis sensor unit, perform self-diagnosis to check that no malfunction is
detected. Refer to
.
ECU DISCRIMINATED NO.
After replacing air bag sensor unit, confirm control unit discriminated number.
TORX bolts (T50):
14.7 - 24.5 N.m (1.5 - 2.5 kg-m, 11
- 18 ft-lb)
PHIA0272E
Specification
ECU DISCRIMINATED No.
Model with driver and passenger air bags, seat belt pre-tensioner, side air bags and curtain air bags
FAC1H
COLLISION DIAGNOSIS
SRS-51
C
D
E
F
G
I
J
K
L
M
A
B
SRS
COLLISION DIAGNOSIS
PFP:00015
For Frontal Collision
NHS0004W
To repair the SRS, perform the following steps.
When SRS (except the front side air bag and side curtain air bag modules) is activated in a collision:
1.
Replace the diagnosis sensor unit.
2.
Remove the air bag modules (except the front side air bag modules and side curtain air bag modules),
crash zone sensor assembly, bracket and seat belt pre-tensioner assemblies.
3.
Check the SRS components using the table below:
–
Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
4.
Install new air bag modules (except the front side air bag modules and side curtain air bag modules) crash
zone sensor assembly, bracket and seat belt pre-tensioner assemblies.
5.
Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to
for details. Ensure entire SRS operates properly.
When SRS is not activated in a collision:
1.
Check the SRS components using the table below:
–
Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
2.
Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to
for details. Ensure entire SRS operates properly.
When only one front air bag module is activated in a collision:
1.
Replace the following components:
–
Diagnosis sensor unit
–
Crash zone sensor
–
Activated front air bag and seat belt pre-tensioner.
2.
Check the other SRS components using the table below. (Refer to “SRS is NOT activated”.)
–
Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
3.
Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to
for details. Ensure entire SRS operates properly.
Only one front air bag may inflate a crash, depending on the crash severity and whether the front occupants
are belted or unbelted. This does not indicate improper performance of the system. Perform self-diagnosis to
make sure the entire SRS operates properly.
SRS INSPECTION (FOR FRONTAL COLLISION)
Part
SRS is activated
SRS is NOT activated
Driver airbag
module
If the Driver airbag has deployed:
REPLACE.
Install with new fasteners.
If the Driver air bag has NOT been activated:
[same text as in current manual]
Passenger front
airbag module
If the Passenger front airbag has deployed:
REPLACE.
Install with new fasteners.
If the Passenger front air bag has NOT been activated:
[same text as in current manual]
Crash zone
sensor
If any of the front airbags or seat belt pre-
tensionsers have been activated:
REPLACE the crash zone sensor and bracket
with new fasteners.
If the front airbags or seat belt pre-tensionsers have NOT
been activated:
[same text as in current manual]
Seat belt pre-
tensioner assem-
blies
If the driver or passenger Seat belt pre-
tensioner has been activated:
REPLACE the seat belt pre-tensioner
assemblies with new fasteners.
If the pre-tensioners have NOT been activated:
[same text as in current manual]
Diagnosis sensor
unit
If any of the SRS components have been
activated:
REPLACE the Diagnosis sensor unit.
Install with new fasteners.
If none of the SRS components have been activated:
[same text as in current manual]
SRS-52
COLLISION DIAGNOSIS
Steering wheel
[same text as in current manual]
Spiral cable
If the Driver airbag has deployed:
REPLACE the spiral cable.
If the Driver airbag has not deployed:
[same text as in current manual]
Harness and con-
nectors
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 damaged section of harness. Do not repair, splice or modify any SRS harness.
Instrument panel
1. Visually check instrument panel for damage.
2. If no damage is found, reinstall the instrument panel.
3. If damaged—REPLACE the instrument panel with bolts.
Part
SRS is activated
SRS is NOT activated
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