Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan 240SX 1989-1994 Approved Nissan 240SX S13 1989 1989

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1989

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QUICK REFERENCE INDEX
GENERAL
INFORMATION GI

MAINTENANCE MA

ENGINEMECHANICAL EM
ENGINE
LUBRICATIONCOOLING
& SYSTEMS- LC
ENGINE
FUEL EMISSION
& CONTROLYSTEM-
S EF &EC

ENGINE
CONTROL,
FUEL EXHAUST YSTEM-
& S FE
CLUTCH CL

NISSAN MANUAL
TRANSMISSION MT

j 24DSX AUTOMATICRANSMISSION
T AT
MODEL -
S13 SERIES . SHAFT DIFFERENTIAL
PROPELLER & CARRIER- PD
FRONTAXLE& FRONTSUSPENSION FA
REARAXLE& REARSUSPENSION RA
BRAKE
SYSTEM SR
STEERING
SYSTEM ST
BODY SF
HEATER AIRCONDITIONER
& HA
ELECTRICAL
SYSTEM EL

,
cg 1988 NISSAN MOTOR CO., LTD. Printed in U.S.A.
Not to be reproduced in who~e or in part without the prior written permission of Ni~n Motor Company Ltd., Tokyo, Japan.
..
<
""
FOREWORD
This manual contains maintenance and repair procedures for the 1989
Nissan 240SX.

In order to assure your safety and the efficient functioning of the
vehicle, this manusl should be read thoroughly. It is especially impor-
tant that the PRECAUTIONS in the GI section be completely under-
stood before starting any repair task.

All information in this manual is based on the latest product informa-
tion at the time of publication. The right is reserved to make changes in
specifications and methods at a~y time without notice.

IMPORTANT AFETY
S NOTICE
The proper performance of service is essential for both the safety of the
technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician and
the tools and parts available. Accordingly, anyone using service proce-
dures, tools or parts which are not specifically recommended by
NISSAN must first completely satisfy himself that neither his safety
nor the vehicle's safety will be jeopardiz~d by the service method

.
selected.

NISSAN MOTORCo.,LTD.
Overseas Service Department
Tokyo, Japan
.
GENERAL
INFORMATION
I
-
GI
SECTION

CONTENTS
PRECAUTIONS GI- 2
HOW TO USE THIS MANUAL GI- 5
HOW TO READ WIRING DIAGRAMS ~ GI- 7
HOW TO FOLLOW FLOW CHART IN TROUBLE DIAGNOSES GI-10
IDENTIFICATION INFORMATION """'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' GI-13

LIFTING POINTS AND TOW TRUCK TOWING GI-17
TIGHTENING TORQUE OF STANDARD BOLTS GI-20
PRECAUTIONS

Observe the following precautions ~o ensure safe and proper
servicing. These precautions are not described in each indi-
vidual section.

1. Do not operate the engine for an extended period of time
without proper exhaust ventilation.
Keep the work area well ventilated and free of any inflam-
mable materials. Special care should be taken when han-
dling any inflammable or poisonous materials, such as
gasoline, refrigerant gas, etc. When working in a pit or other
enclosed area, be sure to properly ventilate the area before
working with hazardous materials.
Do not smoke while working on the vehicle.

SGI285

2. Before jacking up the vehicle, apply wheel chocks or other
tire blocks to the wheels to prevent the vehicle from moving.
After jacking up the vehicle, support the vehicle weight with
safety stands at the points designated for proper lifting and
towing before working on the vehicle.
These operations should be done on a level surface.
3. When removing a heavy component such as the engine or
transaxle/transmission, be careful not to lose your balance
and drop them. Also, do not allow them to strike adjacent
parts, especially the brake tubes and master cylinder.
SGI231

4. Before starting repairs which do not require battery power,
always turn off the ignition switch, then disconnect the
ground cable from the battery to prevent accidental short
circuit.

SGI232

5. To prevent serious burns, avoid contact with hot metal parts
such as the radiator, exhaust manifold, tail pipe and muffler.
Do not remove the radiator cap when the engine is hot.

SGI233

GI-2
PRECAUTIONS

6. Before servicing the vehicle, protect fenders, upholstery and
carpeting with appropriate covers.
Take caution that keys, buckles or buttons on your person
do not scratch the paint.

SGI234

7. Clean all disassembled parts in the designated liquid or
solvent prior to inspection or assembly.
8. Replace oil seals, gaskets, packings, O-rings, locking
washers, cotter pins, self-locking nuts, etc. with new ones.
9. Replace inner and outer races of tapered roller bearings and
needle bearings as a set.
10. Arrange the disassembled parts in accordance with their
assembled locations and sequence.
11. Do not touch the terminals of electrical components which
use microcomputers (such as electronic control units).
Static electricity may damage internal electronic components.
12. After disconnecting vacuum or air hoses, attach a tag to
indicate the proper connection.
13. Use only the lubricants specified in MA section.
14. Use approved bonding agent, sealants or their equivalents
when required.
15. Use tools and recommended special tools where specified
for safe and efficient service repairs.
16. When repairing the fuel, oil, water, vacuum or exhaust
systems, check all affected lines for leaks.
17. Dispose of drained oil or the solvent used for cleaning parts
in an appropriate manner.

Precautions for E.F.I. or E.C.C.S. Engine
1. Before connecting or disconnecting E.F.I. or E.C.C.S. har-
ness connector to or from any E.F.I. or E.C.C.S. control unit,
be sure to turn the ignition switch to the "OFF" position and
disconnect the negative battery terminal.
Otherwise, there may be damage to control unit.
2. Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure to eliminate
danger.
SGI291
3. Be careful not to jar components such as control unit and
air flow meter.

GI-3
PRECAUTIONS

Precautions for Catalyst
If a large amount of unburned fuel flows into the converter, the
converter temperature will be excessively high. To prevent this,
follow the procedure below:
1. Use unleaded gasoline only. Leaded gasoline will seriously
damage the catalytic converter.
2. When checking for ignition spark or measuring engine
compression, make tests quickly and only when necessary.
3. Do not run engine when the fuel tank level is low, otherwise
Clean floor
the engine may misfire causing damage to the converter.
SG 1290
4. Do not place the vehicle on inflammable material. Keep
inflammable material off the exhaust pipe.

Precautions for Fuel
Unleaded gasoline of
at least 87 AKI number (RON 91)

GI-4
HOW TO USE THIS MANUAL

1. A QUICK REFERENCE INDEX, a black tab (e.gJ18) is provided on the first page. You can quickly find
the first page of each section by mating it to the section's black tab.
2. THE CONTENTS are listed on the first page of each section.
3. THE TITLE is indicated on the upper portion of each page and shows the part or system.
4. THE PAGE NUMBER of each section consists of two letters which designate the particular section and
a number (e.g. "BR-5").
5. THE lARGE IllUSTRATIONS are exploded views (See below) and contain tightening torques,
lubrication points and other information necessary to perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the
appropriate PARTS CATALOG.

"Example" Pad retainer

r;~'~ J~
~
5~ 641556.5.40 471
~ ~ r-
~
Main pin
Torque ~ ~. . / IE! to sliding portion
member ,/I ::;:;::: Pin boot /

Outer shim

SBR364A

6. THE SMAll IllUSTRATIONS show the important steps such as inspection, use of special tools,
knacks of work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic
transaxle or transmission, etc. are presented in a step-by-step format where necessary.
7. The followings SYMBOLS AND ABBREVIATIONS are used:

~ Tightening torque M/T Manual Transaxle/Transmission
E1I Should be lubricated with grease. A/T Automatic Transaxle/Transmission
Unless otherwise indicated, use Tool Special Service Tools
recommended multi-purpose grease. L.H.D. Left-Hand Drive
~ Should be lubricated with oil. R.H.D. Right-Hand Drive
rJ Sealing point A.T.F. Automatic Transmission Fluid
~ Checking point 0, Drive range 1st gear
~ Always replace after every disas- 02 Drive range 2nd gear
sembly. 03 Drive range 3rd gear
EaI~ Apply petroleum jelly. D. Drive range 4th gear
@> : Apply A.T.F. Overdrive
* Select with proper thickness.
0.0.
22 2nd range 2nd gear
"f:l : Adjustment is required. 2, 2nd range 1st gear
S.O.S. Service Data and Specifications 12 1st range 2nd gear
L.H., R.H. . Left-Hand, Right-Hand 1, 1st range 1st gear ",.

GI-5
HOW TO USE THIS MANUAL

8. The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit),
and alternatively expressed in the metric system and in the yard/pound system.
"Example"
Tightening torque:
59 - 78 Nom (6.0 - 8.0 kg-m, 43 - 58 ft-Ib)
9. TROUBLE DIAGNOSES are included in sections dealing with complicated components.
10. SERVICE DATA AND SPECIFICATIONS are contained at the end of each section for quick reference of
data.
11. The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal
injury and/or damage to some part of the vehicle.
. WARNING indicates the possibility of personal injury if instructions are not followed.
. CAUTION indicates the possibility of component damage if instructions are not followed.
. BOLD TYPED STATEMENTSexcept WARNING and CAUTIONgive you helpfulinformation.

GI-6
HOW TO READ WIRING DIAGRAMS
""'=

WIRING DIAGRAM
Symbols used in WIRING DIAGRAM are shown below:

Example

POWER SUPPLY
CONNECTOR
Th is shows that these con nectors are -This shows the igni-
tion switch position
white 6 terminal connectors.
in which the system
can be ope rated.
- See POWER SUPPLY
ROUTING in EL
section for the detai led
wiring diagram.
BRANCH

n
M/T model

'-LAMP
-!
. SWITCH
This shows that conti-
nuity exists between

1m
terminals CD and CID,
~ lG~ when the switch is

.
~B~ turned to ON position.
A/T model I >

~ . ~ 2
I
~Whi"~ lyw IiliJ
~ CLG~
~B-S
~~ G

.rn '""".~
m l-l

'WIRE
~
SWITCH

COLOR CODING
'"" ~ g BR Brown
~ : MfT model --- ~
LOCATION NUMBER -b
-
B -BI,,'
W ~ White
OR
P
~

~ Orange
Pink
@ : AfT model This number shows where the ~

connector is located. See BODY D R ~ Red PU ~ Purple

t HARNESS LAYOUT in EL GROUN G ~ Green GY ~ Gray
section. The number is Y
L ~
~ Blue
Yellow SB ~ Sky Blue
.
identical with the one in ht Green
HARNESS LAYOUT. LG ~ Llg .
I d the base
ABBREVIATIONS I is stripe, .
When. the iven first, or
wire co followe d by the stripe
color as g
IS shown below:

~@!
I: Instrument
harness
~
M:
Main harness
Example: L/W ~ Blue with Whtte Stripe

S G 1543

SWITCH POSITIONS

Normally open
Wiring diagram switches are shown with the vehicle in the

~~ ~
= 0---
following condition.
. Ignition switch "OFF",
. Doors, hood and trunk lid/back door closed.
. Pedals are not depressed and parking brake is released.
Normally closed
........ , ~

SEL764E

GI-7
HOW TO READ WIRING DIAGRAMS

Example CONNECTOR SYMBOLS
.All connector symbols in wiring diagrams are shown from
the terminal side.

..4: Connector
SG 1362

Example . Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.

EE
.
M.~ te,m;nal ~
G";d'-[~
Connector
Connector symbol

Female terminal

Efj Guide

Connector
Connector symbol MULTIPLESWITCH
The continuity of the multiple switch is identified in the switch
SG 1363
chart in wiring diagrams.
Example

WIPER SWITCH

Continuity circuit of wiper switch
SWITCH POSITION CONTINUITY CIRCUIT
-B/Y OFF 3-4
INT 3 - 4,5 - 6

-R.
-W/B
-L/Y
-B.
B E
C (f)
1 5
@ 2
LO
HI
WASH
3-6
2.6
1 -6
-yo

Example: Wiper switch in LO position
Continuity circuit: Red wire - @ terminal - CID terminal - Wiperswitch (@ - @:
LO) - @ terminal - CD terminal - Black wire

SG 1365

GI-8
HOW TO READ WIRING DIAGRAMS

SUPER MULTIPLE JUNCTION (S.M.J.)
. The "S.M.J." indicated in wiring diagrams is shown in a
simplified form. The terminal arrangement should therefore
be referred to in the foldout at the end of the Service
Manual.
. The foldout should be spread to read the entire wiring
diagram.

Example

STARTING SYSTEM STARTING SYSTEM
SUPER MULTIPLE JUNCTION (S.M.J.)
Wiring Diagram
T..minal A"angament

Check

w 0
W

g
rnIJ ~
Dm3
FF

0
[ ,=fd:0CI~ crhKk
-

~ '" ,~
], r- 0
liJ

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