1998 TOYOTA LAND CRUISER service

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2004 LAND CRUISER (EWD548U)
6B HOW TO USE THIS MANUAL
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows
through the rear lights warning light to TERMINAL 4 of the light failure sensor.
Stop Light Disconnection Warning
When the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the current
flowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects the
disconnection and the warning circuit of the light failure sensor is activated.
As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lights
warning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warning
circuit on and holds the warning light on until the ignition SW is turned off.
S6 Stop Light SW
2-1 : Closed with the brake pedal depressed
L4 Light Failure Sensor
1, 2, 7-Ground : Approx. 12 volts with the stop light SW on
4, 8-Ground : Approx. 12 volts with the ignition SW at ON position
11-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
C734L436R737
H1736R637S635
: Relay Blocks
CodeSee PageRelay Blocks (Relay Block Location)
118R/B No.1 (Instrument Panel Brace LH)
: Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
IB20Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3C22Instrument Panel Wire and J/B No.3 (Instrument Panel Brace LH)
: Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IE142Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV150Luggage Room Wire and Floor Wire (Luggage Room Left)
: Ground Points
CodeSee PageGround Points Location
BL50Under the Left Center Pillar
BO50Back Panel Center
: Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I544Cowl WireB1850Luggage Room Wire
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
97
I18 Ignition SW
2-3 : Closed with ignition SW at ACC or ON position
2-4 : Closed with ignition SW at ON or ST position
7-6 : Closed with ignition SW at ON or ST position
7-8 : Closed with ignition SW at ST position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
F15A68F18D68J471
F16B68F19E68
F17C68I1870
:Relay Blocks
CodeSee PageRelay Blocks (Relay Block Location)
122Engine Room R/B (Engine Compartment Left)
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B24Engine Room No 2 Wire and Engine Room J/B (Engine Compartment Left)1C24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2A
2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2C
g()
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3B40Engine Room No 2 Wire and Cowl Side J/B RH (Right Kick Panel)3C40Engine Room No.2 Wire and Cowl Side J/B RH (Right Kick Panel)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
6B60Dash Wire and J/B No.6 (Behind the Grove Box)
6D60Engine Wire and J/B No.6 (Behind the Grove Box)
7A64Dash Wire and J/B No.7 (Behind the Glove Box)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EE76Front Left Side of Fender Apron
IF78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
Service Hints

2004 LAND CRUISER (EWD548U)
99
I18 Ignition SW
7-8 : Closed with ignition SW at ST position
P1
Park/Neutral Position SW
6-9 : Closed with A/T shift lever in P or N position
S1 (A), S2 (B) Starter
Points closed with Park/Neutral position SW at P or N position and ignition SW at ST position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
E5A70F1568P169
E6B70I1870S1A69
E7C70J1771S2B69
:Relay Blocks
CodeSee PageRelay Blocks (Relay Block Location)
122Engine Room R/B (Engine Compartment Left)
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B
1C24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
1D
gg(g)
2A28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
5C56Dash Wire and J/B No.5 (Behind the Combination Meter)
5D56Engine Room No.2 Wire and J/B No.5 (Behind the Combination Meter)
6B60Dash Wire and J/B No 6 (Behind the Grove Box)6C60Dash Wire and J/B No.6 (Behind the Grove Box)
6D60Engine Wire and J/B No.6 (Behind the Grove Box)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
ED176Engine No.2 Wire and Engine Room No.2 Wire (Near the Engine Room J/B)
If184Engine Wire and Engine Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EE76Front Left Side of Fender Apron
Service Hints

2004 LAND CRUISER (EWD548U)
102Ignition
I18 Ignition SW
7-6 : Closed with ignition SW at ON or ST position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
E570I469I1870
F1568I569J471
I169I669N169
I269I769
I369I869
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B24Engine Room No 2 Wire and Engine Room J/B (Engine Compartment Left)1C24Engine 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)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IN280Engine Wire and Dash Wire (Behind the Glove Box)
Ib284Dash Wire and Dash Wire (Behind the Combination Meter)
If184Engine Wire and Engine Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EC76Rear Bank of Right Cylinder Head
ED76Rear Bank of Left Cylinder Head
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1076Engine WireE1176Engine Wire
Service Hints

2004 LAND CRUISER (EWD548U)
106Charging
G2 Generator
1-Ground : 13.2-14.0 volts with engine running at 5000 rpm and 115°C (239°F)
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A4570E7C70G2B68
B770E8D70G470
C12A70F1968
C15D70G1A68
: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)
2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2G28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A
4C52Dash Wire and J/B No 4 (Instrument Panel Center)4E52Dash Wire and J/B No.4 (Instrument Panel Center)
4F
6C60Dash Wire and J/B No.6 (Behind the Grove Box)
6D60Engine Wire and J/B No.6 (Behind the Grove Box)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EE176Engine Room Main Wire and Alternator Wire (Near the Battery)
IU182Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
IX182Instrument Panel Integration Wire and Engine Wire (Behind the Glove Box)
If184Engine Wire and Engine Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EC76Rear Bank of Right Cylinder Head
Service Hints

2004 LAND CRUISER (EWD548U)
11 9
2. Control System
*SFI system
The SFI system monitors the engine condition through the signals input from each sensors to the engine control module.
The control signal is sent to the engine control module TERMINALS #1, #2, #3, #4, #5, #6, #7, #8 to operate the injector
(Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving
conditions.
*ESA system
The ESA system monitors the engine condition through the signals input from each sensors to the engine control module.
The best ignition timing is decided according to this data and the data memorized in the engine control module. The
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGT7, IGT8, and these signals control the
igniter to provide the best ignition timing.
*Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control
module evaluates the signals from each sensors, and outputs current to TERMINALS HT1A, HT1B, HT2A, HT2B to
control the heater.
*Fuel pump control system
The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump by the
F/PUMP relay.
*ACIS
The ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed in
accordance with the driving conditions to control the intake manifold length in two stages, for increased engine output in all
ranges from low to high speeds.
*ETCS-i
The ETCS-i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under
all driving conditions.
3. Diagnosis System
When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the
memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control
based on that system. In that case, the fail-safe system either controls the system using the data (Standard values)
recorded in the engine control module memory, or else stops the engine.
E2 Engine Coolant Temp. Sensor
1-2 : Approx. 15.0 kW (-20°C, -4°F)
: Approx. 2.45 kW (20°C, 68°F)
: Approx. 0.32 kW (80°C, 176°F)
E5 (A), E7 (C), E8 (D), E9 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+BM-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B, +B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
VC-E2 : 4.5-5.5 volts with ignition SW on
VTA2-E2 : 2.0-2.9 volts with ignition SW on and accelerator pedal released
: 4.6-5.1 volts with ignition SW on and accelerator pedal depressed
VTA1-E2 : 0.4-1.0 volts with ignition SW on and accelerator pedal released
: 3.2-4.8 volts with ignition SW on and accelerator pedal depressed
THA-E2 : 0.5-3.4 volts with idling, intake air temp. 20°C (68°F)
THW-E2 : 0.2-1.0 volts with idling, engine coolant temp. 80°C (176°F)
W-E1 : 9.0-14.0 volts with idling
: Below 3.0 volts with ignition SW on
Service Hints

2004 LAND CRUISER (EWD548U)
126Engine Immobiliser System
T19 Transponder Key Computer
1-Ground : Always approx. 12 volts
2-Ground : Approx. 12 volts with ignition SW at ON or ST position
14-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
D770E8D70M9B71
D1472E9E70T1071
E5A70J1071T1971
E7C70M5A71U171
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
2D28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2K28Floor No.1 Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3D403E40
Dash Wire and Cowl Side J/B RH (Right Kick Panel)3M43
Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3P43
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A
4C52Dash Wire and J/B No 4 (Instrument Panel Center)4D52Dash Wire and J/B No.4 (Instrument Panel Center)
4E
7B64Dash Wire and J/B No.7 (Behind the Grove Box)
:Ground Points
CodeSee PageGround Points Location
EC76Rear Bank of Right Cylinder Head
IF78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1076Engine Wire
Service Hints

2004 LAND CRUISER (EWD548U)
130Headlight
Daytime Running Light Operation
When the engine is started, a signal from the generator is input into TERMINAL (A) 14 of the body ECU. At this time, if the
parking brake lever is pulled up (Parking brake SW ON), the body ECU is not activated, and the daytime running light
system does not operate.
When the parking brake lever is released (Parking brake SW OFF), a signal is input into TERMINAL (B) 2 of the body ECU.
This activates the body ECU and the headlight turns on.
C16 Combination SW
13-16 : Closed with light control SW at HEAD position
8-16 : Closed with dimmer SW at FLASH position
7-16 : Closed with dimmer SW at HIGH or FLASH position
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
B7A70D2A68H469
B8B70D3B68J371
B9C70G168J971
C12A70H169J1371
C14C70H269P873
C1670H369
: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)
2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)2G28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2K28Floor No.1 Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3Q42Instrument Panel Integration 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)
EE176Engine Room Main Wire and Alternator Wire (Near the Battery)
IG178Engine Room No.2 Wire and Dash Wire (Behind the Combination Meter)
II380Dash Wire and Column Wire (Near the Ignition SW)II580Dash Wire and Column Wire (Near the Ignition SW)
IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)IU482Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
EA76Front Right Side of Fender Apron
IF78Set Bolt of Cowl Side J/B LHIG78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
:Splice Points
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E176Engine Room Main WireE276Engine Room Main Wire
System Outline
Service Hints