1998 TOYOTA LAND CRUISER brake sensor

L PART NUMBER OF CONNECTORS
Code Part Name Part NumberCodePart Name Part Number
Note : Not all of the above part numbers of the connector are established for the supply.
2004 LAND CRUISER (EWD548U)
408
J16Junction Connector90980-1 1915J17Junction Connector90980-1 1915
J18Junction Connector
J19Junction Connector90980-1 1661J20Junction Connector90980-1 1661
J21Junction Connector
J22Junction Connector
J23Junction Connector90980-1 1915J25Junction Connector90980-1 1915
J26Junction Connector
K 1Knock Sensor 190980-1 1166K 2Knock Sensor 290980-1 1166
K 3Key Interlock Solenoid90980-10825
L 1License Plate Light LH90980-1 1148L 2License Plate Light RH90980-1 1148
L 3Lumbar Support Control SW (Driver's Seat)90980-10601
M 1Mass Air Flow Meter90980-1 1317
M 2Moon Roof Control ECU90980-10997
M 3Moon Roof Control SW90980-10789
M 4Master Cylinder Pressure Sensor90980-1 1451
M 5Multi-Display90980-12203
M 6Multi-Display90980-12410
M 7Multi-Display90980-12012
M 9Multi-Display90980-12094
N 1Noise Filter (Ignition)90980-10843
N 2Navigation ECU90980-1 1973
N 3Navigation ECU90980-1 1923
N 4Navigation ECU90980-12221
O 2Oil Pressure Sender90980-1 1363
O 5Overhead J/B90980-12155
P 1Park/Neutral Position SW90980-1 1784
P 2Parking Light LH90980-1 1156P 3Parking Light RH90980-11156
P 4Power Outlet (Front)90980-10760
P 5Power Outlet (Rear Console Box)90980-10860
P 6Power Quarter Window SW LH90980-10797
P 7Power Quarter Window SW RH90980-10996
P 8Parking Brake SW90980-10871
P 9Power Outlet (Luggage Compartment)
P10Power Vent Window Motor LH90980-10860
P11Power Vent Window Motor RH
P12Power Window Master SW90980-12166
P14Power Window Motor Front LH
P15Power Window Motor Front RH90980-1 1599P16Power Window Motor Rear LH90980-11599
P17Power Window Motor Rear RH
P18Power Window Control SW Front RH
P19Power Window Control SW Rear LH90980-1 1947
P20Power Window Control SW Rear RH
P21Pretensioner LH90980-1 1862P22Pretensioner RH90980-1 1862
P23Power Seat Control SW (Driver's Seat)
P24Power Seat Control SW (Front Passenger's
Seat)90980-10803
P25Power Seat Motor (Driver's Seat Front
Vertical Control)
P26Power Seat Motor (Driver's Seat Lumbar
Support Control)
P27Power Seat Motor (Driver's Seat Rear
Vertical Control)
P28Power Seat Motor (Driver's Seat Reclining
Control)
P29Power Seat Motor (Driver's Seat Slide
Control)90980-10825
P30Power Seat Motor (Front Passenger's Seat
Front Vertical Control)
P31Power Seat Motor (Front Passenger's Seat
Rear Vertical Control)
P32Power Seat Motor (Front Passenger's Seat
Reclining Control)
P33Power Seat Motor (Front Passenger's Seat
Slide Control)
R 5Remote Control Mirror SW90980-1 1657
R 6Rheostat90980-10799
R 7Room Temp. Sensor (Front)90980-1 1918
R 8Rear A/C Control SW90980-1 1503
R 9Rear Air Mix Control Servo Motor90980-1 1319
R10Rear Combination Light LH90980-1 1587
R11Rear Combination Light LH90980-10908R12Rear Combination Light RH90980-10908
R13Rear Combination Light RH90980-1 1587
R14Rear Cooler Blower Motor90980-10214
R15Rear Cooler Magnetic Valve90980-10860
R16Rear Cooler Power Transistor90980-10171R17Rear Cooler Relay90980-10171
R19Rear Door Speaker LH90980-10935R20Rear Door Speaker RH90980-10935
R21Rear Evaporator Temp. Sensor90980-1 1918
R22Rear Heater Blower Motor90980-10860
R25Rear Heater Power Transistor90980-10171
R26Rear Inlet Air Temp. Sensor90980-1 1369
R27Rear Interior Light90980-10935
R28Rear Window Defogger90980-1 1097R29Rear Window Defogger90980-1 1097
R30Rear Wiper Motor90980-10795

L
CodePart Name Part NumberCodePart Name Part Number
2004 LAND CRUISER (EWD548U)
409
R31Rear Wiper Relay90980-10797
R32Remote Control Mirror LH90980-1 1573R33Remote Control Mirror RH90980-11573
R34Room Temp. Sensor (Rear)90980-1 1918
R36Radio and Player90980-12038
R37Radio and Player90980-12183
R38Radio and Player90980-12259
R39Rear Seat Audio Controller90980-12200
R40Roll Sensing of Curtain Shield Airbags
Cutoff SW90980-10957
S 1Starter90980-1 1400
S 2Starter90980-09585
S 3Seat Heater SW (Driver's Seat)90980-10797
S 4Seat Heater SW (Front Passenger's Seat)90980-10996
S 5Stop Light SW90980-1 1118
S 6Stereo Component Amplifier90980-10848
S 7Stereo Component Amplifier90980-10807
S 8Seat Belt Warning Occupant Detection
Sensor90980-10860
S 9Seat Heater (Driver's Seat)90980-10907S10Seat Heater (Front Passenger's Seat)90980-10907
S11Side Airbag Sensor Front LH
S12Side Airbag Sensor Front RH90980-12225S13Side Airbag Sensor Rear LH90980-12225
S14Side Airbag Sensor Rear RH
S15Seat Heater (Driver's Seat Cushion)
S16Seat Heater (Front Passenger's Seat
Cushion)90980-10794
S17Seat Position Sensor90980-12195
S18Side Airbag Squib LH90980-1 1864S19Side Airbag Squib RH90980-1 1864
T 1Theft Deterrent Horn90980-10619
T 4Telescopic Motor90980-10799
T 5Theft Deterrent ECU90980-12169
T 7Tilt and Telescopic ECU90980-10799
T 8Tilt and Telescopic ECU90980-10848
T 9Tilt Motor90980-10799
T10Ignition Key Cylinder Light90980-12092T10Transponder Key Amplifier90980-12092
T11Turn Signal Flasher90980-10799
T12Trailer Socket82824-34030
T13Tweeter LH90980-1 1300T14Tweeter RH90980-1 1300
T15Towing Converter Relay90980-1 1535
T16Throttle Control Motor and Sensor90980-1 1858
T17Turbine Speed Sensor90980-1 1156
T18Towing Brake Controller90980-1 1603
T19Transponder Key Computer90980-1 1911
T20Television Camera90980-12381
T21Television Camera ECU90980-12169
T22Television Camera ECU90980-10997
T23Towing Hitch Relay82660-20340
U 1Unlock Warning SW90980-10860
V 1Vapor Pressure Sensor90980-1 1143V 2Vehicle Speed Sensor (Combination Meter)90980-1 1143
V 3Vehicle Speed Sensor (Electronically
Controlled Transmission)
90980-1 1156
V 4VSV (EVAP)
90980 1 1156
V 6Vanity Light LH90980-1 1918V 7Vanity Light RH90980-1 1918
V 8VSC Warning Buzzer90980-10906
V 9VSV (Canister Closed Valve)90980-1 1162
V10VSV (Pressure Switching Valve)90980-1 1859
W 1Washer Motor90980-1 1294
W 4Woofer (Speaker)90980-10795
Y 1Yaw Rate Sensor90980-12080
Z 1Option Connector (Glass Breakage Sensor)90980-10825

2004 LAND CRUISER (EWD548U)
218Electronically Controlled Transmission and A/T Indicator
Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure,
governor hydraulic pressure and lock-up hydraulic pressure. The electronically controlled transmission, however, electrically
controls the line pressure, throttle pressure, lock-up pressure and accumulator pressure etc. through the solenoid valve. The
electronically controlled transmission is a system which precisely controls gear shift timing and lock-up timing in response to
the vehicle's driving conditions and the engine condition detected by various sensors. It makes smooth driving possible by
shift selection for each gear which is the most appropriate to the driving conditions at that time, and by preventing downing,
squat and gear shift shock when starting off.
1. Gear Shift Operation
When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the
engine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL SP2+ of the
engine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input to
TERMINALS VTA1 and VTA2 of the engine control module as throttle angle signal.
Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current
to the electronically controlled transmission solenoid.
2. Line Hydraulic Pressure Control
The engine control module adjusts the line hydraulic pressure to the optimal level by controlling TERMINAL SLT+ of the
module according to the engine torque data. This realizes the smooth gear shifting.
3. High Response Gear Shifting Control
The engine control module performs the high response engine torque up control to control the ignition-timing lag as well as
opening the electronic throttle when shifting down. By doing this, the gear shifting is performed in a short period of time.
Moreover, the engine control module uses the orifice switching control, which optimizes the speed of applying and reducing
the hydraulic pressure. And it realizes the fine shifting condition by applying and reducing hydraulic pressure slowly when
the gear shifting shock is important and quickly when the high response is required.
4. Clutch Hydraulic Pressure Control
The engine control module controls the clutch operation in the optimal timing and with the best hydraulic pressure according
to the engine torque data and the number of the clutch revolution
5. Lock-Up and Flexible Lock-Up Control
The engine control module carries out the lock-up control by controlling the TERMINAL SLU+ of the module according to
the shift position, vehicle speed, throttle opening degree and running conditions. The engine control module also steadily
keeps applying the lock-up clutch a delicate slippage to improve the transmission efficiency (Fuel efficiency) of the torque
converter.
6. Stop Light SW Circuit
If the brake pedal is depressed (Stop light SW on) when driving in lock-up condition, a signal is input to TERMINAL STP of
the engine control module. The engine control module operates and cuts the current to the solenoid to release lock-up.
7. Ai-Shift Control
The engine control module judges whether the road is downslope or upslope by detecting the throttle opening degree or the
vehicle's speed. Moreover it can expect the winding roads by detecting the turning condition of the vehicle. The engine
control module keeps unnecessary shifting up from the fourth gear from operating and carries out the automatic shifting
down to the third gear in order to control the vehicle running according to the road conditions. The engine control module
also reads the driver's intention during driving from his (her) accelerating operation and the running conditions of the vehicle.
As a result of that, ideal shifting patters for each driver are automatically selected without any switching operations.
8. Electronically Controlled Transmission Pattern Select SW Circuit
When the electronically controlled transmission pattern select SW is switched to PWR, a signal is input to TERMINAL PWR
of the engine control module. This enables shift-up and shift-down at a higher speed range.
9. Transfer Shift Operation
When the transfer shift lever is moved to L position, a signal is input into TERMINAL L4 of the engine control module.
In addition when the transfer shift lever is moved to N position a signal is input to engine control module TERMINAL TFN.
The engine control module detects the transfer condition through this.
System Outline

2004 LAND CRUISER (EWD548U)
230VSC
2 A 23 12 A A22 A10
W
R
B
321
(
Shielded)
M 4
C 18IG4 22
(
Shielded)(
Shielded)
518Y 1
C 27IG4 18
C 28IG4 20
C 9IG4 19
C 19IG4 21
C 10IG4 17
C 22IG4 16 624
R
W
B
L
Y
G R
W
B
L
Y
G
Y- GB 13
12B 4
2K 27
R- W R- W
P 8
16
B 127D 6
57D D 1
B 9
W- L
A
A
IA2 7 IA2 5
1 2
W
A36BD3 10 BD311
W
BF2B 21
BD3 8
W
IA2 6
BD3 9
BF2 1B 20
BBB(
Shielded) (
Shielded)
B
W
AJ 2
6IA2 14
1 2
G
A35BD3 7
G
BF2B 19
G
IA2 15
BD3 6
BF2 5B 18
RRR(
Shielded) (
Shielded)
R
G (
Shielded)
(
Shielded)
A41(
A)
, A42(
B)
, A43(
C)
, A44(
D) MSS E2 PMC VCMGND VOUT VCC GYAW YAW2 VYS YD GL2 GL1
YSS GYAW YAW VYS YD GL2 GL1
WW
TS TS
PKB
Y- G RL+ RL- RR+ RR- RSS
IA2 16SB SB
ABS Speed Sensor
Rear LHABS Speed Sensor
Rear RH ABS & BA & TRAC & VSC ECUData Link
Connector 1
Master Cylinder Pressure Sensor
Parking Brake SW
Yaw Rate Sensor
Junction
Connector W
P- B
7B 2 11TC
WP- B

2004 LAND CRUISER (EWD548U)
234VSC
1. ABS Operation
If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the four
wheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedal
is depressed suddenly, the ABS & BA & TRAC & VSC ECU controls the solenoids in the actuators using the signals from the
sensors to move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If the
ABS & BA & TRAC & VSC ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the
solenoids in the actuators to increase the braking pressure.
2. Traction Control Operation
The traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of the
wheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stability
corresponding to the road conditions.
3. VSC Operation
Unexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under- or
over-steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes to
reduce the under- or over-steering.
To reduce large over-steering :
If the VSC system determines that the over-steering is large, it activates the brakes for the outer turning wheels depending
on the degree of the over-steering to produce the moment toward the outside of the vehicle and reduce the over-steering.
To reduce large under-steering :
If the VSC system determines that the under-steering is large, it controls the engine power and activates the rear wheel
brakes to reduce the under-steering.
VSC indicator light
If an error occurs in the VSC system, the VSC indicator lights up to warn the driver.
4. Traction Mode and VSC Function
When the center differential of the transfer is locked, the VSC function is turned off. At this time, the VSC OFF indicator light
in the combination meter will come on, and informs the driver that the VSC function is OFF.
5. Mutual System Control
To efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlled
while the VSC system is being operated.
Engine throttle control
The engine power does not interfere with the VSC brake control by controlling the opening of the throttle and reducing the
engine output.
Engine control and electronically controlled transmission control
The strong braking force does not interfere with the braking force control of the VSC system by turning off the accel. and
reducing changes in the driving torque at shift-down.
VSC system operation indication
The slip indicator light flashes and the buzzer sounds intermittently to warn the driver that the current road is slippery, while
the VSC system is being operated.
6. Fail Safe Function
If an error occurs in the ABS & BA & TRAC & VSC ECU, sensor signals, and/or actuators, the ABS & BA & TRAC & VSC
ECU inhibits the brake actuator control and inputs the error signal to the engine control module. According to the error signal,
the brake actuator turns off the solenoid and the engine control module rejects any electronically controlled throttle open
request from the VSC system. As a result, the vehicle functions without the ABS, BA, TRAC, and VSC systems.
System Outline

2004 LAND CRUISER (EWD548U)
235
A41 (A), A42 (B), A44 (D) ABS & BA & TRAC & VSC ECU
(D)15-Ground : Always approx. 12 volts
(B) 6-Ground : Approx. 12 volts with ignition SW at ON or ST position
(D)22-Ground : Approx. 12 volts with ignition SW at ON or ST position
(B)10-Ground : Approx. 12 volts with brake pedal depressed
(A) 6, (A) 31, (B) 8, (B) 17-Ground : Always continuity
A12 ABS Speed Sensor Front LH
2-4 : Approx. 1.07 kW (20 °C, 68 °F)
A13 ABS Speed Sensor Front RH
1-2 : Approx. 1.07 kW (20 °C, 68 °F)
A35, A36 ABS Speed Sensor Rear LH, RH
1-2 : Approx. 1.2 kW (25 °C, 77 °F)
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A1268A42B70D770
A1368A43C70E970
A3572A44D70J271
A3672C12A70M469
A37A68C13B70P169
A38B68C14C70P873
A39C68C15D70S571
A40D68C1770V871
A41A70D168Y171
: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)
2A28Engine Room No 2 Wire and Cowl Side J/B LH (Left Kick Panel)2B28Engine 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)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3A40Engine Room No 2 Wire and Cowl Side J/B RH (Right Kick Panel)3B40Engine 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)
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)
6C60Dash Wire and J/B No.6 (Behind the Grove Box)
6D60Engine Wire and J/B No.6 (Behind the Grove Box)
7B64Dash Wire and J/B No.7 (Behind the Grove Box)
7D64Engine Room No.2 Wire and J/B No.7 (Behind the Grove Box)
Service Hints

2004 LAND CRUISER (EWD548U)
354Combination Meter
2Q 37
2E 14
Malfunction
Indicator Lamp
Slip Center Diff. Lock
TRAC
ABS
BRAKE
RSCA OFFVSC TRAC
B 16 B14 B11 B15 B18 A12 C19 C20 C1C18 B19 B9
IF 2E 34IU2 2
B B
12Q 31
2K 27
SB
SB
SB W- B R- W
R- W
W- BSB
SB
SB
SB
SB
SB
SB
SB
SB
Center Airbag
Sensor Assembly P 8
J 8 ABS & BA & TRAC & VSC ECU
Detection SW
(
Center Diff. Lock)
Engine Control Module
ABS & BA & TRAC &
VSC Actuator
ABS & BA & TRAC & VSC ECU
R- WC12(
A)
, C13(
B)
, C14(
C)
, C15(
D)
Combination Meter
Parking Br ake
SW
Junction Connector

DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE
Diagnostic Trouble
Code Check (Make a
note of and then clear)Confirmation
of SymptomsDiagnostic Trouble
Code CheckProblem Condition
Diagnostic Trouble
Code DisplayProblem symptoms
existSame diagnostic
trouble code is
displayedProblem is still occurring in the diagnostic
circuit
Normal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem)
No problem
symptoms existThe problem occurred in the diagnostic
circuit in the past
Normal Code DisplayProblem symptoms
existNormal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit
No problem
symptoms existNormal code is
displayedThe problem occurred in a place other
than in the diagnostic circuit in the past
IN-28- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
28 Author
: Date
:
2004 LAND CRUISER (RM1071U)
2. SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK
The diagnostic system in the LAND CRUISER fulfills various functions. The first function is the Diagnostic
Trouble Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU
memory at the time of occurrence, to be output by the technician during troubleshooting. Another function
is the Input Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the LAND CRUIS-
ER.
SystemDiagnostic Trouble
Code CheckInput Signal Check
(Sensor Check)Other Diagnosis
Function
Engine
Automatic Transmission
ABS & Vehicle Stability Control (VSC) & Brake Assist (BA) System
Power Tilt and Power Telescopic Steering Column
Supplemental Restraint System
Theft Deterrent System
Cruise Control System
Engine Immobiliser System
Driver Door Control System
Navigation System
Air Conditioning System(with Test Mode)
(with Test Mode)
















Cancel Signal
Check



In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag-
nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.