Nissan Terrano r20e. Manual — part 421

Part

Side air bag is activated

SRS is NOT activated

Seat with built-in side air
bag

REPLACE all parts of
front seatback (including
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-60

STARTING & CHARGING SYSTEMS

SECTION

SC

CONTENTS

PRECAUTIONS

. . . . . . . . . . . . . . . ...2

Supplemental Restraint System (SRS)

″

AIR

BAG

″

and

″

SEAT BELT PRE-TENSIONER

″

. . . ...2

Wiring Diagrams and Trouble Diagnoses. . . . . 2

BATTERY

. . . . . . . . . . . . . . . . . . .3

How to Handle Battery . . . . . . . . . . . . 3
Battery Test and Charging Chart. . . . . . . . .6

STARTING SYSTEM

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

System Description. . . . . . . . . . . . . 13
Wiring Diagram - START -. . . . . . . . . . .14
Trouble Diagnoses. . . . . . . . . . . . . .16
Construction. . . . . . . . . . . . . . . ...17
Magnetic Switch Check . . . . . . . . . . . .19
Pinion/Clutch Check . . . . . . . . . . . . ..19
Brush Check . . . . . . . . . . . . . . . ..20

Field Coil Check . . . . . . . . . . . . . . 20
Armature Check. . . . . . . . . . . . . . .21
Assembly . . . . . . . . . . . . . . . . ...22

CHARGING SYSTEM

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

System Description. . . . . . . . . . . . . 23
Wiring Diagram - CHARGE -. . . . . . . . . .24
Trouble Diagnoses. . . . . . . . . . . . . .26
Construction. . . . . . . . . . . . . . . ...27
Disassembly. . . . . . . . . . . . . . . ...28
Inspection. . . . . . . . . . . . . . . . ...28
Assembly . . . . . . . . . . . . . . . . ...29

SERVICE DATA AND SPECIFICATIONS (SDS)

. . ..30

Battery. . . . . . . . . . . . . . . . . . 30
Starter . . . . . . . . . . . . . . . . . . 30
Alternator . . . . . . . . . . . . . . . . ...30

Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”

The 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 R20 is as follows (The compo-
sition varies according to the destination and optional equipment.):

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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.

I

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 the RS section of this Service Manual.

WARNING:

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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.

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Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.

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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 harness connector.

Wiring Diagrams and Trouble Diagnoses

When you read wiring diagrams, refer to the following:

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GI-10, “HOW TO READ WIRING DIAGRAMS”

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EL-6, “POWER SUPPLY ROUTING” for power distribution circuit

When you perform trouble diagnoses, refer to the following:

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GI-25, “HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES”

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GI-22, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”

PRECAUTIONS

SC-2

How to Handle Battery

CAUTION:

If it becomes necessary to start the engine with a booster bat-
tery 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.

METHODS OF PREVENTING OVER-DISCHARGE

The following precautions must be taken to prevent over-discharg-
ing a battery.

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The battery surface (particularly its top) should always be kept
clean and dry.

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The terminal connections should be clean and tight.

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At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.

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When the vehicle is not going to be used over a long period of
time, disconnect the negative battery terminal.

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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 LEVEL

WARNING:

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.

MEL040F

MEL041F

MEL042F

BATTERY

SC-3