Electrical connectors TOYOTA LAND CRUISER 1998 Factory User Guide

FI1066
IN07M-02
Z11554
Seal Lock Adhesive
IN-4
- INTRODUCTIONREPAIR INSTRUCTIONS
4 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REPAIR INSTRUCTIONS
GENERAL INFORMATION
BASIC REPAIR HINT
(a) Use fender, seat and floor covers to keep the vehicle
clean and prevent damage.
(b) During disassembly, keep parts in the appropriate order
to facilitate reassembly.
(c) Installation and removal of battery terminal:
(1) Before performing electrical work, disconnect the
negative (-) terminal cable from the battery.
(2) If it is necessary to disconnect the battery for in-
spection or repair, first disconnect the negative (-)
terminal cable.
(3) When disconnecting the terminal cable to prevent
damage to battery terminal, loosen the cable nut
and raise the cable straight up without twisting or
prying it.
(4) Clean the battery terminals and cable ends with a
clean shop rag. Do not scrape them with a file or oth-
er abrasive objects.
(5) Install the cable ends to the battery terminals after
loosening the nut, and tighten the nut after installa-
tion. Do not use a hammer to tap the cable ends
onto the terminals.
(6) Be sure the cover for the positive (+) terminal is
properly in place.
(d) Check hose and wiring connectors to make sure that they
are connected securely and correctly.
(e) Non-reusable parts
(1) Always replace cotter pins, gaskets, O-rings and oil
seals, etc. with new ones.
(2) Non-reusable parts are indicated in the component
illustrations by the ºº symbol.
(f) Precoated parts
Precoated parts are bolts and nuts, etc. that are coated
with a seal lock adhesive at the factory.
(1) If a precoated part is retightened, loosened or
caused to move in any way, it must be recoated with
the specified adhesive.
(2) When reusing precoated parts, clean off the old
adhesive and dry with compressed air. Then apply
the specified seal lock adhesive to the bolt, nut or
threads.

IN0253
WRONG CORRECT
IN0252
WRONG CORRECT IN-6
- INTRODUCTIONREPAIR INSTRUCTIONS
6 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(k) Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the prop-
er locations (See page IN-8).
Cancel the parking brake on the level place and
shift the transmission in N position.
When jacking up the front wheels of the vehicle at
first place stoppers behind the rear wheels.
When jacking up the rear wheels of the vehicle at
first place stoppers before the front wheels.
When either the front or rear wheels only should be
jacked up, set rigid racks and place stoppers in front
and behind the other wheels on the ground.
After the vehicle is jacked up, be sure to support it
on rigid racks. It is extremely dangerous to do any
work on a vehicle raised on a jack alone, even for
a small job that can be finished quickly.
(l) Observe the following precautions to avoid damage to the
following parts:
(1) Do not open the cover or case of the ECU unless
absolutely necessary. (If the IC terminals are
touched, the IC may be destroyed by static electric-
ity.)
(2) To disconnect vacuum hoses, pull off the end, not
the middle of the hose.
(3) To pull apart electrical connectors, pull on the con-
nector itself, not the wires.
(4) Be careful not to drop electrical components, such
as sensors or relays. If they are dropped on a hard
floor, they should be replaced and not reused.
(5) When steam cleaning an engine, protect the elec-
tronic components, air filter and emission-related
components from water.
(6) Never use an impact wrench to remove or install
temperature switches or temperature sensors.
(7) When checking continuity at the wire connector, in-
sert the tester probe carefully to prevent terminals
from bending.
(8) When using a vacuum gauge, never force the hose
onto a connector that is too large. Use a step-down
adapter for adjustment. Once the hose has been
stretched, it may leak air.

SF0XU-1 1
- SFISFI SYSTEM
SF-1
1700 Author
: Date
:
2004 LAND CRUISER (RM1071U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (-) TERMINAL CABLE FROM BAT-
TERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (-) terminal cable is removed from
the battery.
Therefore, if necessary, read the diagnosis before removing the
negative (-) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR
LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) Take following precautions to prevent the engine misfire.
(1) Check proper connection to battery terminals, etc.
(2) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(3) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Take following precautions to handle the oxygen sensor.
(1) Do not drop the oxygen sensor or hit against an ob-
ject.
(2) Do not allow the sensor to contact with water.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RA-
DIO
SYSTEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to be out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will cause air suction, which makes the engine out
of tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Disconnect the power by either turning the ignition switch
OFF or disconnecting the negative (-) terminal cable from
the battery before removing SFI wiring connectors, termi-
nals, etc.
HINT:
Always check the diagnostic trouble code before disconnecting
the negative (-) terminal cable from the battery.
(b) When installing the battery, be especially careful not to in-
correctly connect the positive (+) and negative (-) cables.

RS0BL-08
H20940
RS-70
- SUPPLEMENTAL RESTRAINT SYSTEMAIRBAG SENSOR ASSEMBLY
2345 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REMOVAL
NOTICE:
Do not open the cover or the case of the ECU and various
electrical devices unless absolutely necessary.
(If the IC terminals are touched, the IC may be destroyed by
static electricity.)
HINT:
For step 2 to 6, refer to page BO-84.
1. REMOVE FRONT SEAT (See page BO-105)
2. REMOVE TRANSFER SHIFT LEVER KNOB
3. REMOVE UPPER CONSOLE PANEL
4. REMOVE REAR CONSOLE BOX WITH CONSOLE
REAR END PANEL
5. REMOVE FRONT CONSOLE BOX
6. REMOVE CENTER LOWER CLUSTER FINISH PANEL
ASSEMBLY
7. REMOVE AIRBAG SENSOR ASSEMBLY
(a) Disconnect the airbag sensor connectors.
NOTICE:
Disconnect the connectors with the airbag sensor assem-
bly installed.
(b) Remove the 3 bolts and the airbag sensor assembly.

- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS-7
2282 Author
: Date
:
2004 LAND CRUISER (RM1071U)No.
ItemApplication
(1)Terminal Twin-Lock MechanismConnectors 1, 2, 3, 4, 5, 7, 9, 10, 11, 12, 13, 14
(2)Activation Prevention MechanismConnectors 1, 2, 3, 4, 5, 6, 7, 8, 15
(3)Electrical Connection Check MechanismConnectors 1, 2, 3
(4)Half Connection Prevention MechanismConnectors 4, 5, 7, 9, 10, 11, 12, 13, 14
(5)Connector Lock MechanismConnectors 6

Z05953
Spacer
Housing
Female Male
R10587
When Connector is Connected When Connector is Disconnected
Short Spring Plate
Housing
Housing
Terminal
ConnectorsShort Spring PlateSquib
Closed CircuitSquib Short Spring Plate ONContacting Male Terminal Short Spring Plate
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS-9
2284 Author
: Date
:
2004 LAND CRUISER (RM1071U)No.
ItemApplication
(1)Terminal Twin-Lock MechanismConnectors 1, 2, 3, 4, 5, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24
(2)Activation Prevention MechanismConnectors 1, 2, 3, 4, 5, 6, 10, 13, 14, 21, 22, 25
(3)Electrical Connection Check MechanismConnectors 1, 2, 3
(4)Half Connection Prevention MechanismConnectors 4, 5, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24
(5)Connector Lock MechanismConnectors 6
(a) All connectors in the SRS are colored in yellow to distin-
guish them from other connectors. Connectors having
special functions and specifically designed for the SRS
are used in the locations shown on the previous page to
ensure high reliability. These connectors use durable
gold-plated terminals.
(1) Terminal Twin-Lock Mechanism
Each connector has a two-piece component con-
sisting of a housing and a spacer. This design al-
lows the terminal to be locked securely by two lock-
ing devices (the retainer and the lance) to prevent
terminals from coming out.
(2) Activation Prevention Mechanism
Each connector contains a short spring plate. When
the connector is disconnected, the short spring
plate automatically connects positive (+) terminal
and negative (-) terminal of the squib.

H20053
Disconnection
Detection
Pin
Airbag Sensor Assembly
H01315
Terminal for Diagnosis
Disconnection Detection Pin
Half Connection
Complete Connection
Terminal for
Diagnosis
RS-10
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
2285 Author
: Date
:
2004 LAND CRUISER (RM1071U)
HINT:
The type of connector is shown in the diagram on the previous
page.
(3) Electrical Connection Check Mechanism
This mechanism electrically checks that connectors
are connected correctly and completely. The electri-
cal connection check mechanism is designed so
that the disconnection detection pin is connected
with the diagnosis terminals when the connector
housing lock is locked.
HINT:
The illustration shows connectors º1º, º2º and º3º in
step 13.
Connectors 2 and 3 also have similar mechanism.