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.

Opening portion for passenger air bag

SRS366

Passenger air bag module brackets

SRS367

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.

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.

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.

IDX

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.

Harness, connectors and terminals

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

SECTION

CONTENTS

PRECAUTIONS ...............................................................2

Supplemental Restraint System (SRS)

SEAT BELT PRE-TENSIONER

″

...............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

CHECKING ELECTROLYTE LEVEL

............................4

SPECIFIC GRAVITY CHECK

......................................5

CHARGING THE BATTERY

........................................6

Trouble Diagnoses with Battery/Starting/Charging
System Tester ..............................................................7

DIAGNOSTIC RESULT ITEM CHART

..........................9

STARTING SYSTEM .....................................................10

System Description....................................................10
Wiring Diagram - START -......................................... 11
Trouble Diagnoses with Battery/Starting/Charging
System Tester ............................................................12

DIAGNOSTIC RESULT ITEM CHART

........................13

WORK FLOW

..........................................................14

DIAGNOSTIC PROCEDURE 1

..................................15

DIAGNOSTIC PROCEDURE 2

..................................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

DIAGNOSTIC RESULT ITEM CHART

........................23

WORK FLOW

..........................................................24

DIAGNOSTIC PROCEDURE 1

..................................25

DIAGNOSTIC PROCEDURE 2

..................................26

DIAGNOSTIC PROCEDURE 3

..................................27

MALFUNCTION INDICATOR

....................................27

Construction...............................................................28
Removal and Installation ...........................................28

SERVICE DATA AND SPECIFICATIONS (SDS) .........29

Battery........................................................................29
Starter ........................................................................29
Alternator ...................................................................29

IDX

Content .. 536 537 538 539 ..