Infiniti QX4 (R50). Manual — part 538
Part
SRS is activated
SRS is NOT activated
Harness and Connec-
tors
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. Damaged—REPLACE damaged section of harness. Do not attempt to repair, splice or modify any SRS
harness.
Instrument panel
1. When passenger air bag inflates, check the following points for bending, deformities or cracks.
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Opening portion for passenger air bag
SRS366
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Passenger air bag module brackets
SRS367
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The portions securing the instrument panel
SRS876
2. If no damage is found, reinstall the instrument panel.
3. If damaged—REPLACE the instrument panel with bolts.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Collision Diagnosis (Cont’d)
RS-60
FOR SIDE COLLISION
=NBRS0049S02
To repair the SRS for a side collision, perform the following steps.
When the side air bag is activated in the side collision:
1) Replace the following component:
−
All parts of front seatback (including front seatback frame) with side air bag module (on the side on which
side air bag is activated)
−
Diagnosis sensor unit
−
Satellite sensor (on the side on which side air bag is activated)
2) Check the SRS components and the related parts using the table shown below.
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Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
3) Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to “SRS Operation Check”
for details (RS-38). Ensure entire SRS operation properly.
When SRS is not activated in the side collision:
1) Check the SRS components and the related parts using the table shown below.
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Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
2) Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to “SRS Operation Check”
for details (RS-38). Ensure entire SRS operation properly.
SRS Inspection (For side collision)
NBRS0049S0201
Part
Side air bag is acti-
vated
SRS is NOT activated
Built-in side air bags
module (LH or RH)
REPLACE all parts of
front seatback with
deployed side air bag
module.
1. Check for visible signs of damage (dents, tears, deformation) of the seatback
on the collision side.
2. If damaged—REPLACE the damaged seat parts with new bolts and remove
the side air bag module.
3. Check for visible signs of damaged (tesrs etc.) of the side air bag module.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damaged is found, reinstall the side air bag module with new torx nuts
coated with bonding agent.
6. If damaged—REPLACE the side air bag module with new torx nuts coated with
bonding agent. Air bag must be deployed before disposing of it.
Satellite sensor (LH
or RH)
REPLACE the satel-
lite sensor on the col-
lision side with new
nuts coated with
bonding agent.
(Repair the center
pillar inner, etc. before
installing new one if
damaged.)
1. Remove the satellite sensor on the collision side. Check harness connectors
for damage, terminals for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the satellite
sensor.
3. Install the satellite sensor to check fit.
4. If no damage is found, reinstall the satellite sensor with new nuts coated with
bonding agent.
5. If damaged—REPLACE the satellite sensor with new nuts coated with bonding
agent.
Diagnosis sensor unit
REPLACE the diag-
nosis sensor unit with
the new bolts.
1. Check case and bracket for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall the diagnosis sensor unit with new special bolts
and ground bolt.
4. If damaged—REPLACE. Install the diagnosis sensor unit with new special
bolts and ground bolt.
Seat belt pre-ten-
sioner assembly
1. Check if the seat belt can be extended smoothly.
If the seat belt cannot be extended smoothly.
–
Check for deformities of the center pillar inner.
–
If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner assembly.
2. Remove the seat belt pre-tensioner assembly on the collision side. Check harness cover and connec-
tors for damage, terminals for deformities, and harness for binding.
3. Check for visible signs of damage (dents, cracks, deformation) of the seat belt pre-tensioner assembly.
4. If no damage is found, reinstall the seat belt pre-tensioner assembly.
5. If damaged—REPLACE the seat belt pre-tensioner assembly with new bolts coated with bonding
agent. The seat belt pre-tensioner assembly must be deployed before disposing of it.
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Collision Diagnosis (Cont’d)
RS-61
Part
Side air bag is acti-
vated
SRS is NOT activated
Seat with built-in side
air bag
REPLACE all parts of
front seatback (includ-
ing front seatback
frame)
1. Visually check the seat on the collision side.
2. Remove the seat on the collision side and check the following for damage and
deformities.
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Harness, connectors and terminals
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Frame and recliner (for front and rear seat), and also adjuster and slides (for
front seat)
3. If no damage is found, reinstall the seat.
4. If damaged—REPLACE the damaged seat parts with new bolts.
Center pillar inner
1. Check the center pillar inner on the collision side for damage (dents, cracks, deformation).
2. If damaged—REPAIR the center pillar inner.
Trim
1. Check for visible signs of damage (dents, cracks, deformation) of the interior trim on the collision side.
2. If damaged—REPLACE the damaged trim parts.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Collision Diagnosis (Cont’d)
RS-62
STARTING & CHARGING SYSTEM
CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . ...2
Supplemental Restraint System (SRS)
. . . ...2
Wiring Diagrams and Trouble Diagnosis. . . . . .2
PREPARATION . . . . . . . . . . . . . . . ...3
Special Service Tool . . . . . . . . . . . . . 3
BATTERY. . . . . . . . . . . . . . . . . . .4
How to Handle Battery . . . . . . . . . . . . 4
METHODS OF PREVENTING OVER-DISCHARGE
. ..4
. . . . . . . 4
. . . . . . . . . ..5
. . . . . . . . . . 6
Trouble Diagnoses with Battery/Starting/Charging
System Tester . . . . . . . . . . . . . . . ..7
STARTING SYSTEM . . . . . . . . . . . . . .10
System Description. . . . . . . . . . . . . 10
Wiring Diagram - START -. . . . . . . . . . . 11
Trouble Diagnoses with Battery/Starting/Charging
System Tester . . . . . . . . . . . . . . . 12
. . . . . . 13
. . . . . . . . . . . . . . ..14
. . . . . . . . ..15
. . . . . . . . ..17
MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT
TEMPERATURE
. . . . . . . . . . . . . ..17
Construction. . . . . . . . . . . . . . . ...18
Removal and Installation . . . . . . . . . . ...18
Pinion/Clutch Check . . . . . . . . . . . . ..18
CHARGING SYSTEM . . . . . . . . . . . . . 19
System Description. . . . . . . . . . . . . 19
Wiring Diagram - CHARGE -. . . . . . . . . .20
Trouble Diagnoses with Battery/Starting/Charging
System Tester . . . . . . . . . . . . . . . 21
. . . . . . 23
. . . . . . . . . . . . . . ..24
. . . . . . . . ..25
. . . . . . . . ..26
. . . . . . . . ..27
. . . . . . . . . 27
Construction. . . . . . . . . . . . . . . ...28
Removal and Installation . . . . . . . . . . ...28
SERVICE DATA AND SPECIFICATIONS (SDS) . . .29
Battery. . . . . . . . . . . . . . . . . . 29
Starter . . . . . . . . . . . . . . . . . . 29
Alternator . . . . . . . . . . . . . . . . ...29
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