fuse TOYOTA LAND CRUISER 1998 Factory Repair Manual

2004 LAND CRUISER (EWD548U)
197
When the ignition SW turned on, the current from the WIPER fuse flows to the front wiper and washer SW TERMINAL 17,
and the front wiper motor TERMINAL 2.
1. Low Position
When the front wiper SW is turned to LO position, the current flows from the front wiper and washer SW TERMINAL 17 to
TERMINAL 7 to the front wiper motor TERMINAL 1 to TERMINAL 5 to GROUND, and operates the front wiper motor at low
speed.
2. High Position
When the front wiper SW is turned to HI position, the current flows from the front wiper and washer SW TERMINAL 17 to
TERMINAL 8 to the front wiper motor TERMINAL 4 to TERMINAL 5 to GROUND, and operates the front wiper motor at high
speed.
3. INT Position
When the front wiper SW is turned to INT position, the relay operates and the current which is connected by the relay
function flows from the front wiper and washer SW TERMINAL 17 to TERMINAL 2 to GROUND, and operates the wipe.
The intermittent operation is controlled by the charge/discharge function of the condenser installed in the relay, and the
intermittent time is controlled by a time control SW to change the charging time of the condenser.
4. Washer Interlocking Operation
When the front washer SW is pulled up, the current flows from the washer motor TERMINAL 2 to TERMINAL 3 to the front
wiper and washer SW TERMINAL 11 to TERMINAL 2 to GROUND, operates the washer motor and the window washer
emits a water spray. This causes the current to flow to the washer continuous operation circuit in the front wiper and washer
SW TERMINAL 11 to TERMINAL 7 to front wiper motor TERMINAL 1 to TERMINAL 5 to GROUND, and operates the wiper.
C19 Combination SW
17-Ground : Approx. 12 volts with ignition SW at ON or ST position
7-Ground : Approx. 12 volts with front wiper and washer SW at LO position
: Approx. 12 volts 1.6 to 10.7 seconds intermittently with the front wiper and washer SW at INT position
16-Ground : Approx. 12 volts with ignition SW on unless the front wiper motor at STOP position
8-Ground : Approx. 12 volts with front wiper and washer SW at HI position
2-Ground : Always continuity
F5 Front Wiper Motor
2-Ground : Approx. 12 volts with ignition SW at ON or ST position
5-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
C1970J371
F568W169
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A24Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2A28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
3A40Engine Room No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)3G40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA276Engine Room Main Wire and Engine Room No.2 Wire (Engine Compartment Right)
II380Dash Wire and Column Wire (Near the Ignition SW)
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
201
When the ignition SW is turned on, the current flows from the WASHER fuse to washer motor TERMINAL 2, and the current
flows from the RR WIPER fuse to rear wiper relay TERMINAL 3, and the rear wiper motor TERMINAL 1 respectively.
1. Rear Wiper Normal Operation
When the ignition SW is turned on, and the rear wiper and washer SW is turned to ON position, the current flows from the
rear wiper relay TERMINAL 3 to TERMINAL 6 to the rear wiper and washer SW TERMINAL 10 to TERMINAL 2 to
GROUND, and turns on the rear wiper relay. As a result, the current flows from the rear wiper relay TERMINAL 3 to
TERMINAL 4 to the rear wiper motor TERMINAL 3 to TERMINAL 2 to GROUND, and operates the rear wiper.
2. Rear Wiper Intermittent Operation
When the ignition SW is turned on, and the rear wiper and washer SW is turned to INT position, the current flows from the
rear wiper relay TERMINAL 3 to TERMINAL 2 to the rear wiper and washer SW TERMINAL 13 to TERMINAL 2 to
GROUND, and the intermittent circuit in the rear wiper relay is controlled to operate the wiper intermittently.
3. Washer Operation
When the ignition SW is turned on, and the rear wiper and washer SW is turned from OFF to WASH position, the current
flows from the WASHER fuse to the washer motor TERMINAL 2 to TERMINAL 1 to the rear wiper and washer SW
TERMINAL 12 to TERMINAL 2 to GROUND. This activates the washer motor, and the window washer emits a water spray.
When the rear wiper and washer SW is turned to ON position, the window washer emits a water spray during rear wiper
normal operation.
W1 Washer Motor
2-Ground : Approx. 12 volts with ignition SW at ON or ST position
1-Ground : Continuity with rear wiper and washer SW at WASH position
R30 Rear Wiper Motor
1-Ground : Approx. 12 volts with ignition SW at ON or ST position
2-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
C1970J2272R3173
J371R3073W169
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A24Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1B24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2A28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2K28Floor No.1 Wire and Cowl Side J/B LH (Left Kick Panel)
3A40Engine Room No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EA276Engine Room Main Wire and Engine Room No.2 Wire (Engine Compartment Right)
ID478Dash Wire and Floor No.1 Wire (Left Kick Panel)
II380Dash Wire and Column Wire (Near the Ignition SW)
BH186Pillar No 1 Wire and Back Door Upper Wire (Left Side of Back Door)BH286Pillar No.1 Wire and Back Door Upper Wire (Left Side of Back Door)
BP388Pillar No.1 Wire and Floor No.1 Wire (Left Rear Side Quarter Panel)
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
257
In this system, the HALL IC in the moon roof control ECU detects the changes in motor rotation, and allows opening/closing,
tilting up/down of the moon roof by one touch operation.
In addition, catching prevention function during moon roof operation is also provided.
Voltage is constantly applied from the SUN ROOF fuse to the moon roof control ECU TERMINAL 5 of the moon roof control
ECU.
When the ignition SW is turned on, the current flows from the ECU-IG1 fuse to TERMINAL 8 of the moon roof control ECU.
1. Slide Open Operation
When the moon roof control SW is kept pressed to OPEN position for approx. 0.3 seconds or longer (Limit SW No.1 off, limit
SW No.2 on), a signal is input from the moon roof control SW TERMINAL 5 to the moon roof control ECU TERMINAL 9. This
activates the moon roof control ECU and rotates the motor to open the moon roof automatically. However, in case of
pressing the moon roof control SW for 0.3 seconds or less, the moon roof can be operated manually. Then, when the limit
SW No.1 is turned on and then turned off again, the pulse signal sent from the HALL IC activates the moon roof control ECU,
and determines that the moon roof is fully open, and stops the motor. If other operation SW or the open SW is operated while
the moon roof is being opened, the moon roof control ECU is activated to stop the moon roof operation. In addition, when the
moon roof is tilted up, the slide open operation does not function.
2. Slide Close Operation
When the moon roof control SW is kept pressed to CLOSE position for approx. 0.3 seconds or longer (Limit SW No.1 off,
limit SW No.2 off), a signal is input from the moon roof control SW TERMINAL 4 to the moon roof control ECU TERMINAL
10. This activates the moon roof control ECU and rotates the motor to close the moon roof automatically. However, in case of
pressing the moon roof control SW for 0.3 seconds or less, the moon roof can be operated manually. Then, when the limit
SW No.2 is turned on, the pulse signal sent from the HALL IC activates the moon roof control ECU, and determines that the
moon roof is closed fully, and stops the motor. If other operation SW or the close SW is operated while the moon roof is
being closed, the moon roof control ECU is activated to stop the moon roof operation.
3. Tilt Up Operation
When the moon roof control SW is kept pressed to UP position for approx. 0.3 seconds or longer (Limit SW No.1 off, limit SW
No.2 on), a signal is input from the moon roof control SW TERMINAL 1 to the moon roof control ECU TERMINAL 4. This
activates the moon roof control ECU and rotates the motor to tilt up the moon roof automatically. If the pulse signal is not
input from the HALL IC for 0.5 seconds or longer, it determines that the moon roof is fully tilted up, and stops the motor. If
other operation SW or the tilt up SW is operated while the moon roof is being tilted up, the moon roof control ECU is
activated to stop the moon roof operation. In addition, when the moon roof is opened, the tilt up operation does not function.
4. Tilt Down Operation
When the moon roof control SW is kept pressed to DOWN position for approx. 0.3 seconds or longer (Limit SW No.1 on, limit
SW No.2 on), a signal is input from the moon roof control SW TERMINAL 2 to the moon roof control ECU TERMINAL 3. This
activates the moon roof control ECU and rotates the motor to tilt down the moon roof automatically.
Then, when the limit SW No.1 is turned off, the pulse signal sent from the HALL IC activated the moon roof control ECU, and
determines that the moon roof is closed fully, and stops the motor.
If other operation SW or the tilt down SW is operated while the moon roof is being tilted down, the moon roof control ECU is
activated to stop the moon roof operation.
5. Catching Prevention Function
During slide close or tilt down operation, if the moon roof control ECU detects a catching load from the changes in the
rotation of the motor, the operation is stopped, and the motor is rotated in the reverse direction.
*Slide close operation
The moon roof is moved approx. 200 mm in the reverse direction (Slide open) after a catching load has been detected.
However, if the full open position is detected before moving approx. 200 mm, the reverse movement is stopped.
*Tilt down operation
If a catching load is detected, the moon roof is moved in the reverse direction until fully tilted up.
6. Key Off Moon Roof Operation
Within approx. 43 seconds after the ignition SW is turned from on to off, the moon roof can be operated. However, if the
driver or front passenger door is opened during this period of time, the moon roof operation is stopped even though 43
seconds have not elapsed.
7. Fail-Safe Function
If the moon roof is operated continuously in the same direction, the current flowing to the motor is cut off when the time
shown below has elapsed after the motor operation has been started.
*Slide open/close operation by the moon roof SW approx. 20 seconds
*Tilt up/down operation by the moon roof SW approx. 2 second
*Slide open operation for reverse movement in case of catching prevention function approx. 20 seconds
*Tilt up operation for reverse movement in case of catching prevention function approx. 2 seconds
System Outline

To Ignition SW
IG Terminal
Fuse
Voltmeter SW 1
Relay
SW 2Solenoid[A]
[B]
[C]
Ohmmeter
SW
Ohmmeter
Diode
Digital Type Analog Type
2004 LAND CRUISER (EWD548U)
12C TROUBLESHOOTING
VOLTAGE CHECK
(a)Establish conditions in which voltage is present at the check
point.
Example:
[A] - Ignition SW on
[B] - Ignition SW and SW 1 on
[C] - Ignition SW, SW 1 and Relay on (SW 2 off)
(b)Using a voltmeter, connect the negative lead to a good ground
point or negative battery terminal, and the positive lead to the
connector or component terminal.
This check can be done with a test light instead of a voltmeter.
CONTINUITY AND RESISTANCE CHECK
(a)Disconnect the battery terminal or wire so there is no voltage
between the check points.
(b)Contact the two leads of an ohmmeter to each of the check
points.
If the circuit has diodes, reverse the two leads and check
again.
When contacting the negative lead to the diode positive side
and the positive lead to the negative side, there should be
continuity.
When contacting the two leads in reverse, there should be no
continuity.
(c)Use a volt/ohmmeter with high impedance (10 kW/V
minimum) for troubleshooting of the electrical circuit.

To Ignition SW
IG Terminal
Test Light
Relay Light
SW 2 SolenoidDisconnectShort [A]
Disconnect
DisconnectSW 1Fuse Case
Short [B]
Short [C]
Pull Up
Press Down Press DownPull Up
2004 LAND CRUISER (EWD548U)
13 C
FINDING A SHORT CIRCUIT
(a)Remove the blown fuse and disconnect all loads of the fuse.
(b)Connect a test light in place of the fuse.
(c)Establish conditions in which the test light comes on.
Example:
[A] - Ignition SW on
[B] - Ignition SW and SW 1 on
[C] - Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
(d)Disconnect and reconnect the connectors while watching the
test light.
The short lies between the connector where the test light
stays lit and the connector where the light goes out.
(e)Find the exact location of the short by lightly shaking the
problem wire along the body.
CAUTION:
(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,
the IC may be destroyed by static electricity.)
(b) When replacing the internal mechanism (ECU part) of
the digital meter, be careful that no part of your body or
clothing comes in contact with the terminals of leads
from the IC, etc. of the replacement part (spare part).
DISCONNECTION OF MALE AND FEMALE
CONNECTORS
To pull apart the connectors, pull on the connector itself, not
the wire harness.
HINT : C h e c k t o s e e w h a t k i n d o f connector you are
disconnecting before pulling apart.

BE1367
Medium Current Fuse and High Current Fuse
Equal Amperage Rating
V00076
Abbreviation Part Name Symbol Illustration
FUSE
MEDIUM CURRENT FUSE
HIGH CURRENT FUSE
FUSIBLE LINK
CIRCUIT BREAKERFUSE
M-FUSE
H-FUSE
FL
CB
- INTRODUCTIONREPAIR INSTRUCTIONS
IN-5
5 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(3) Precoated parts are indicated in the component il-
lustrations by the º
º symbol.
(g) When necessary, use a sealer on gaskets to prevent
leaks.
(h) Carefully observe all specifications for bolt tightening
torques. Always use a torque wrench.
(i) Use of special service tools (SST) and special service ma-
terials (SSM) may be required, depending on the nature
of the repair. Be sure to use SST and SSM where speci-
fied and follow the proper work procedure. A list of SST
and SSM can be found in Preparation section in this
manual.
(j) When replacing fuses, be sure the new fuse has the cor-
rect amperage rating. DO NOT exceed the rating or use
one with a lower rating.

BE1367
Medium Current Fuse and High Current Fuse
Equal Amperage Rating
V00076
Abbreviation Part Name Symbol Illustration
FUSE
MEDIUM CURRENT FUSE
HIGH CURRENT FUSE
FUSIBLE LINK
CIRCUIT BREAKERFUSE
M-FUSE
H-FUSE
FL
CB
- INTRODUCTIONREPAIR INSTRUCTIONS
IN-5
5 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(3) Precoated parts are indicated in the component il-
lustrations by the º
º symbol.
(g) When necessary, use a sealer on gaskets to prevent
leaks.
(h) Carefully observe all specifications for bolt tightening
torques. Always use a torque wrench.
(i) Use of special service tools (SST) and special service ma-
terials (SSM) may be required, depending on the nature
of the repair. Be sure to use SST and SSM where speci-
fied and follow the proper work procedure. A list of SST
and SSM can be found in Preparation section in this
manual.
(j) When replacing fuses, be sure the new fuse has the cor-
rect amperage rating. DO NOT exceed the rating or use
one with a lower rating.

A07061
TOYOTA
Hand-Held
Tester
DLC3SF10V-02
B04440
Up
Pulsation
Damper
Screw
B04441
SST
(Gauge)SST
(Adaptor)
SST
(Union)
Front Fuel Pipe
Gasket
- SFIFUEL PUMP
SF-7
1706 Author
: Date
:
2004 LAND CRUISER (RM1071U)
FUEL PUMP
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect a TOYOTA hand-held tester or OBD II scan tool
to the DLC3.
(b) Turn the ignition switch ON, and press the TOYOTA
hand-held tester or OBD II scan tool main switch ON.
NOTICE:
Do not start the engine.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-
held tester or OBD II scan tool.
(d) Please refer to the TOYOTA hand-held tester or OBD II
scan tool operator's manual for further details.
(e) If you have no TOYOTA hand-held tester or OBD II scan
tool, connect the positive (+) and negative (-) leads from
the battery to the fuel pump connector. (See step 3)
(f) Disconnect the fuel return hose from the clamp on the V-
bank cover.
(g) Remove the 2 bolts, nuts and V-bank cover.
(h) Check that the pulsation damper screw pop up when the
fuel pump operates.
If operation is not as specified, check following parts:

Fusible link

Fuses

EFI main relay

Fuel pump

ECM

Wiring connections
(i) Turn the ignition switch OFF.
(j) Disconnect the TOYOTA hand-held tester or OBD II scan
tool from the DLC3.
2. CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 12 V.
(b) Disconnect the negative (-) terminal cable from the bat-
tery.
(c) Remove the front fuel pipe from the LH delivery pipe (See
page SF-22).
(d) Install the front fuel pipe and SST (pressure gauge) to the
delivery pipe with the 3 lower gaskets and SST (adaptor).
SST 09268-45014 (09268-41190, 90405-06167)
Torque: 39 N´m (400 kgf´cm, 29 ft´lbf)
(e) Wipe off any splattered gasoline.
(f) Reconnect the negative (-) terminal cable to the battery.
(g) Connect a TOYOTA hand-held tester or OBD II scan tool
to the DLC3 (See (a) to (e) in step 1 on the check fuel
pump operation).
(h) Measure the fuel pressure.

Z16462
RLP RM1 M2
4WD GND SPD IG Wire harness:
Z16461
GND
4WDRLP M1M2 ECU: SA-164
- SUSPENSION AND AXLEDIFFERENTIAL LOCKING SYSTEM
2114 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(b) Inspect the system circuit with the connector discon-
nected.
Disconnect the connector from the rear diff. lock control
ECU and inspect the connector on the wire harness side,
as shown in the table.
Symbols (Terminals No.)Trouble partConditionSpecified value
M1 - M2RR Diff. Lock Actuator-Less than 100 W
GND - Body groundBody ground-Continuity
SPD - Body groundSpeed sensorVehicle moves slowly1 pulse each
40 cm (15.75 in.)
IG - Body groundDIFF FuseIgnition switch ON10 - 14 V
RLP B d dRear Diff. Lock Indica-Ignition switch ON with indicator light ONAbout 0 VRLP - Body groundRear Diff. Lock Indica
tor SwitchIgnition switch ON with indicator light OFF10 - 14 V
4WD B d dL iti S it hIgnition switch ON with T/F shift lever except LAbout 0 V4WD - Body groundL position SwitchIgnition switch ON with T/F shift lever L10 - 14 V
RBd dDifferential Lock Con-Ignition switch ON with differential lock control switch RR10 - 14 VR - Body groundDifferential Lock Con
trol SwitchIgnition switch ON with differential lock control switch OFFAbout 0 V
HINT:
If the circuit is not as specified value, check and repair or re-
place the trouble part shown in the table above.
(c) Inspect the system circuit with the connector connected.
(1) Turn the ignition switch to the ON position.
(2) Shift the transfer shift lever to L position.
(3) Using a voltmeter, measure the voltage when the
differential lock control switch is in the position, as
shown in the table.
Tester Connection

- Switch positionSpecified valve
4WD - GND-10 - 14 V
RLP - GNDRR*0.5 V or less
M1 - M2OFF " RR0.5 V or less " 10 - 14 V
(A 1 )05VM2 - M1RR " OFF(Approx. 1 sec.) "0.5 V
or less
*: The rear differential should be locked mechanically.
If the circuit is not as specified value, replace the ECU.
(4) Install the ECU in place.

SA-2
- SUSPENSION AND AXLETROUBLESHOOTING
1952 Author
: Date
:
2004 LAND CRUISER (RM1071U) Noise in rear axle
1. Oil level (Low or wrong grade)
2. Excessive backlash between pinion and ring gear
3. Ring, pinion or side gears (Worn or chipped)
4. Pinion shaft bearing (Worn)
5. Axle shaft bearing (Worn)SA-95
SA-102
SA-121
SA-143
SA-102
SA-121
SA-143
SA-102
SA-121
SA-143
SA-83
Oil leak from rear axle1. Oil seal (Worn or damaged)
2. Rear axle housing (Cracked)SA-83
-
Oil leak from rear differential
1. Oil level (Too high or wrong grade)
2. Rear differential front oil seal (Worn or damaged)
3. Companion flange (Loosen or damaged)SA-95
SA-95
SA-102
SA-121
SA-143
Diff. lock Indicator lights do not light up
1. Fusible link (Blown)
2. GAUGE fuse (Blown)
3. Bulb (Burned out)
4. Wiring or ground (Faulty)-
-
-
-
Diff. lock Indicator lights do not light up
(Diff. lock control switch RR position)
1. Diff. fuse (Blown)
2. Diff. lock control switch (Faulty)
3. Diff. lock ECU (Faulty)
4. Wiring or ground (Faulty)-
SA-163
SA-163
-
Differential lock does not operate
1. Diff. lock control switch (Faulty)
2. Diff. lock actuator (Faulty)
3. Diff. lock ECU (Faulty)
4. Differential carrier (Faulty)
5. Wiring or ground (Faulty)SA-163
SA-163
SA-163
-
-
After differential lock, lock is not released
When vehicle speed is at 8 km/h (5 mph) or more1. Speed sensor (Faulty)
2. Diff. lock ECU (Faulty)
3. Wiring or ground (Faulty)SA-163
SA-163
-