system NISSAN TERRANO 2002 Service Repair Manual

Collision Diagnosis
FOR FRONTAL COLLISION
To repair the SRS, perform the following steps.
When SRS (except the side air bag modules) is activated in a collision:
1) Replace the diagnosis sensor unit.
2) Remove the air bag modules (except the side air bag modules) and front seat belt pre-tensioner assem-
blies.
3) Check the SRS components using the table shown below:
IReplace any SRS components showing visible signs of damage (dents, cracks and deformation).
4) Install new air bag modules (except the side air bag module) and front seat belt pre-tensioner assemblies.
5) Conduct self-diagnosis using CONSULT-II or ªAIR BAGº warning lamp. Refer to ªSRS Operation Checkº
for details (RS-36). Ensure entire SRS operation properly.
When SRS is not activated in a collision:
1) Check the SRS components using the table shown below:
IReplace any SRS components showing visible signs of damage (dents, cracks and deformation).
2) Conduct self-diagnosis using CONSULT-II or ªAIR BAGº warning lamp. Refer to ªSRS Operation Checkº
for details (RS-36). Ensure entire SRS operation properly.
SRS Inspection (For frontal collision)
Part SRS is activated SRS is NOT activated
Air bag module (driver
and front passenger
side)REPLACE
Install with new special
bolts coated with bond-
ing agent.1. Remove air bag module. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
2.
a. Install driver air bag module into the steering wheel to check fit and align-
ment with the wheel.
b. Install front passenger air bag module into the instrument panel to check fit
with the instrument panel.
3. No damage found, reinstall with new bolts coated with bonding agent.
4. If damagedÐREPLACE. Install air bag modules with new special bolts
coated with bonding agent. Air bag must be deployed before disposal.
Front seat belt pre-ten-
sioner assemblyREPLACE
Install seat belt pre-ten-
sioner with new bolts.1. Remove front seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities,
and harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. If no damage is found, reinstall front seat belt pre-tensioner assembly.
5. If damagedÐREPLACE. Install the front seat belt pre-tensioners with new
bolts coated with bonding agent. Front seat belt pre-tensioners must be
deployed before disposal.
Diagnosis sensor unit REPLACE
Install with new bolts
coated with bonding
agent.1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new special bolts and ground bolt
coated with bonding agent.
4. If damagedÐREPLACE. Install diagnosis sensor unit with new special
bolts and ground bolt coated with bonding agent.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.
3. Install driver air bag module to check fit or alignment with steering wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall with bolts.
6. If damagedÐREPLACE.
Spiral cable 1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall with bolts.
5. If damagedÐREPLACE.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-57

Part SRS is activated SRS is NOT activated
Harness and Connectors 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. DamagedÐREPLACE 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.
IOpening portion for front passenger air bag
NBF372IFront passenger air bag module brackets
NBF373IThe portions securing the instrument panel
NBF3742. If no damage is found, reinstall the instrument panel.
3. If damagedÐREPLACE the instrument panel with bolts.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Collision Diagnosis (Cont'd)
RS-58

FOR SIDE COLLISION
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:
Ð All parts of front seatback (including front seatback frame) with side air bag module (on the side on which
side air bag is activated)
Ð Diagnosis sensor unit
Ð Side air bag (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.
IReplace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
3) Conduct self-diagnosis using CONSULT-II or ªAIR BAGº warning lamp. Refer to ªSRS Operation Checkº
for details (RS-36). 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.
IReplace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
2) Conduct self-diagnosis using CONSULT-II or ªAIR BAGº warning lamp. Refer to ªSRS Operation Checkº
for details (RS-36). Ensure entire SRS operation properly.
SRS Inspection (For side collision)
Part Side air bag is activated SRS is NOT activated
Front (LH or RH) side air
bag modulesREPLACE all parts of
front seatback with
deployed front side air
bag module.1. Check for visible signs of damage (dents, tears, deformation) of the seat
back on the collision side.
2. If damagedÐREPLACE the damaged seat parts with new bolts and
remove the front side air bag module.
3. Check for visible signs of damage (tears 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 front side air bag module with new
nuts.
6. If damagedÐREPLACE the front side air bag module with new nuts. Air
bag must be deployed before disposal.
(LH or RH) side air bag
(satellite) sensorREPLACE the side air
bag (satellite) sensor on
the collision side with
new nuts coated with
bonding agent.
(Repair the center pillar
inner, etc. before install-
ing new one if dam-
aged.)1. Remove the satellite sensor on the collision side. Check harness connec-
tors for damage, terminals for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the satel-
lite sensor.
3. Install the side air bag (satellite) sensor to check fit.
4. If no damage is found, reinstall the side air bag (satellite)sensor with new
nuts.
5. If damagedÐREPLACE the side air bag sensor with new nuts coated with
bonding agent.
Diagnosis sensor unit REPLACE the diagnosis
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 damagedÐREPLACE. Install the diagnosis sensor unit with new special
bolts and ground bolt.
Front seat belt pre-ten-
sioner assembly1. Check if the seat belt can be extended smoothly.
If the seat belt cannot be extended smoothly.
Ð Check for deformities of the center pillar inner.
Ð If the center pillar inner has no damage, REPLACE the front seat belt pre-tensioner assembly.
2. Remove the front seat belt pre-tensioner assembly on the collision side. Check harness cover and
connectors for damage, terminals for deformities, and harness for binding.
3. Check for visible signs of damage (dents, cracks, deformation) of the front seat belt pre-tensioner
assembly.
4. If no damage is found, reinstall the front seat belt pre-tensioner assembly.
5. If damagedÐREPLACE the front seat belt pre-tensioner assembly with new bolts coated with bonding
agent. The front seat belt pre-tensioner assembly must be deployed before disposal.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Collision Diagnosis (Cont'd)
RS-59

Part Side air bag is activated SRS is NOT activated
Seat with built-in side air
bagREPLACE 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.
IHarness, connectors and terminals
IFrame 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 damagedÐREPLACE 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 damagedÐREPAIR 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 damagedÐREPLACE 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)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............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 ..............................................................20Field 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) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº 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.):
IFor 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.
IFor 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 theRS sectionof this Service Manual.
WARNING:
ITo 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.
IImproper 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.
IDo 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:
IGI-10, ªHOW TO READ WIRING DIAGRAMSº
IEL-6, ªPOWER SUPPLY ROUTINGº for power distribution circuit
When you perform trouble diagnoses, refer to the following:
IGI-25, ªHOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSESº
IGI-22, ªHOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENTº
PRECAUTIONS
SC-2

System Description
M/T MODELS
Power is supplied at all times
Ithrough 40A fusible link (letterC, located in the fuse and fusible link box)
Ito ignition switch terminal 1.
With the ignition switch in START position, power is supplied
Ifrom ignition switch terminal 1
Ito starter motor harness connector terminal 4.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the engine
starts.
A/T MODELS
Power is supplied at all times
Ithrough 40A fusible link (letterC, located in the fuse and fusible link box)
Ito ignition switch terminal 1.
With the ignition switch in the START position, power is supplied
Ifrom ignition switch terminal 1
Ito park/neutral position relay terminal 4.
With the ignition switch ON or START position, power is supplied
Ithrough 10A fuse [No. 8, located in the fuse block (J/B)]
Ito park/neutral position (PNP) relay terminal 1.
With the selector lever in the P or N position, ground is supplied
Ito park/neutral position relay terminal 2 through the park/neutral position switch
Ifrom body grounds, M754 and M33.
Then park/neutral position relay is energized and power is supplied
Ifrom park/neutral position relay terminal 3
Ito starter motor harness connector terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the engine
starts.
STARTING SYSTEM
SC-13

Wiring Diagram Ð START Ð
TD27Ti ENGINE MODELS
YEL053D
STARTING SYSTEM
SC-14

ZD30DDTi ENGINE MODELS
YEL054D
STARTING SYSTEM
Wiring Diagram Ð START Ð (Cont'd)
SC-15

Trouble Diagnoses
If any abnormality is found, immediately disconnect battery negative terminal.
SEL761W
STARTING SYSTEM
SC-16