2001 TOYOTA HIGHLANDER o2 sensor

05-2154
- DIAGNOSTICSCRUISE CONTROL SYSTEM
2344 Author
: Date
:
DTC P0500/21 VEHICLE SPEED SENSOR CIRCUIT
MALFUNCTION
DTC P0503/23 VEHICLE SPEED SENSOR CIRCUIT
MALFUNCTION
CIRCUIT DESCRIPTION
3MZ-FE: See page 05-578.
2AZ-FE: See page 05-216.
DTC No.DTC Detection ConditionTrouble Area
P0500/21
This trouble code is output when the vehicle speed signal from
the vehicle speed sensor is cut for 0.14 sec. or more while the
cruise control is in operation.
Vehicle speed sensor

Vehicle speed sensor signal circuit

ECM
P0503/23
Momentary interruption and noise are detected when a rapid
change of vehicle speed occurs while the cruise control is in
operation.
Vehicle speed sensor

Vehicle speed sensor signal circuit

ECM
WIRING DIAGRAM
3MZ-FE: See page 05-578.
2AZ-FE: See page 05-216.
INSPECTION PROCEDURE
3MZ-FE: See page 05-578.
2AZ-FE: See page 05-216.
05IQW-02

05CD0-06
F46284
Rear Speed Sensor and Rotor
ABS & TRACTION Actuator
(with Skid Control ECU)
Engine Room J/B

ABS NO.1 Fuse

ABS NO.2 Fuse
Combination Meter Assy

ABS Warning Lamp

Brake Warning Lamp

VSC Warning Lamp

TRAC OFF Indicator

Slip Indicator
Driver Side J/B

ECU-IG FuseStop Lamp Switch
2WD:
TRAC OFF Switch DLC 3
VSC R/B

ABS MTR Relay

ABS CNT Relay
Yaw Rate Sensor
(Deceleration Sensor)
ECM
Steering Angle Sensor
Skid Control Buzzer
Front Speed Sensor
Front Speed Sensor Rotor
2WD:
Parking Brake Switch
Rear Speed Sensor Rear Speed Sensor Rotor
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-783
973 Author
: Date
:
LOCATION

051ZI-15
A90309
Fuel Pump
Charcoal Canister Assy ECMCombination Meter Assy Mass Air Flow Sensor
(Including Intake Air Temperature Sensor)
DLC3 Accelerator Pedal Rod Assy
(Accelerator Pedal Position Sensor)
Passenger Side J/BEVAP VSV
Heated Oxygen Sensor
(Bank 1 Sensor 2)
Engine Room R/B No. 2
and Engine Room J/B

EFI Relay

STARTER Relay

EFI NO. 1 Fuse

EFI NO. 2 Fuse

ETCS Fuse

AM2 Fuse

ALT Fuse

STARTER Fuse
Crankshaft
Position SensorIgnition Coil
with Igniter
Knock SensorThrottle Body Assy
(Throttle Position
Sensor and Actuator) Camshaft Timing Oil
Control Valve Assy
Camshaft Position Sensor
A/F Sensor
(Bank 1 Sensor 1)
PNP SwitchR/B Sub-assy:

C/OPN Relay
Instrument Panel J/B Assy

IGN Fuse

IG2 Fuse

STOP
Engine Coolant
Temperature Sensor
InjectorPump Module
Front
05-4
- DIAGNOSTICSSFI SYSTEM (2AZ-FE)
194 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
LOCATION

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.
2005 HIGHLANDER (EWD592U)
342
A 1A/C Ambient Temp. Sensor90980-1 1070
A2A/C Lock Sensor90980-1 1016A 2A/C Magnetic Clutch90980-1 1016
A 3Pressure SW90980-10943
A 4ABS Speed Sensor Front LH90980-1 1075A 5ABS Speed Sensor Front RH90980-11075
A 6Air Fuel Ratio Sensor (Bank 1 Sensor 1)90980-1 1178A 7Air Fuel Ratio Sensor (Bank 2 Sensor 1)90980-11178
A 8Airbag Sensor Front LH90980-1 1856A 9Airbag Sensor Front RH90980-11856
A10A/C Control Assembly90980-1 1392
A11A/C Control Assembly90980-1 1391
A12A/C Solar Sensor90980-1 1918
A13Air Inlet Control Servo Motor
A14Air Mix Control Servo Motor90980-1 1909
A15Air Vent Mode Control Servo Motor
A16
Airbag Sensor Assembly (w/ Curtain Shield
Airbag)82824-50160
A16Airbag Sensor Assembly (w/o Curtain
Shield Airbag)90980-1 1869
A17Airbag Sensor Assembly90980-1 1872
A18
Airbag Sensor Assembly (w/ Curtain Shield
Airbag)82824-50150
A18Airbag Sensor Assembly (w/o Curtain
Shield Airbag)90980-1 1867
A19Airbag Squib (Front Passenger Airbag
Assembly)
90980-12160
A20Airbag Squib (Steering Wheel Pad)
90980 12160
A21Antenna Amplifier (Front)90980-10871
A22Ashtray Illumination90980-10824
A23Automatic Light Control Sensor90980-1 1107
A24ABS Speed Sensor Rear LH90980-1 1060A25ABS Speed Sensor Rear RH90980-1 1060
A26Antenna Amplifier (Rear)90980-10871
A27Accel Position Sensor90980-1 1858
B 4Brake Warning SW90980-1 1207
B 5Blower Control SW90980-10877
B 6Blower Motor90980-10385
B 7Blower Motor Control90980-1 1676
B 8Blower Resister90980-1 1136
B 9Body ECU90980-1 1957
B10Body ECU90980-1 1956
B11Body ECU90980-1 1955
B12Body ECU90980-1 1954
B13Brake Pedal Load Sensing SW90980-10860
B14Back Door Key Lock and Unlock SW90980-1 1489
B15Back Door Lock Motor90980-1 1292B15Back Door Unlock Detection SW90980-1 1292
B17Buckle SW (Front Passenger's Side)90980-1 1019
B19Buckle SW LH90980-10942B19Seat Position Airbag Sensor LH90980-10942
C 1Camshaft Position Sensor90980-10947
C 2Camshaft Timing Control Valve
C 3Camshaft Timing Oil Control Valve LH90980-1 1162
C 4Camshaft Timing Oil Control Valve RH
C 5Condenser Fan Motor90980-10928
C 6Counter Gear Speed Sensor90980-1 1156
C 7Crankshaft Position Sensor90980-10947
C 9Cigarette Lighter90980-10760
C10Cigarette Lighter Illumination90980-1 1148
C11Combination Meter90980-1 1392
C12Combination Meter90980-1 1391
C13Combination SW90980-1 1672
C14Combination SW90980-1 1594
C16Combination SW90980-12183
C17Charcoal Canister Assembly90980-12380
C18Curtain Shield Airbag Squib LH90980-12219C19Curtain Shield Airbag Squib RH90980-12219
D 2Diode (Cooling Fan)90980-10962
D 3Data Link Connector 390980-1 1978
D 4Diode (Rear Interior Light)90980-10962
D 5Door Courtesy Light Front LH90980-1 1148D 6Door Courtesy Light Front RH90980-1 1148
D 7Door Courtesy SW Front LH
D 8Door Courtesy SW Front RH90980-10871D 9Door Courtesy SW Rear LH90980-10871
D10Door Courtesy SW Rear RH
D11Door Lock Control SW90980-10797
Door Key Lock and Unlock SW Front LH
D12Door Lock Motor Front LH
Door Unlock Detection SW Front LH90980-1 1858Door Key Lock and Unlock SW Front RH90980-11858
D13Door Lock Motor Front RH
Door Unlock Detection SW Front RH
D14Door Lock Motor Rear LHD14Door Unlock Detection SW Rear LH90980-1 1150
D15Door Lock Motor Rear RH90980-11150
D15Door Unlock Detection SW Rear RH
D16Diode (Rear Wiper)90980-10962
E 1Electronically Controlled Transmission
Solenoid90980-12326
E2Engine Coolant Temp. Sensor (2AZ-FE)90980-1 1061E 2Engine Coolant Temp. Sensor (3MZ-FE)90980-10737
E 3Engine Hood Courtesy SW90980-1 1189

L
CodePart Name Part NumberCodePart Name Part Number
2005 HIGHLANDER (EWD592U)
343
E 4Electronically Controlled Transmission
Pattern Select SW90980-10797
E 5Engine Control Module90980-12142
E 6Engine Control Module90980-12146
E 7Engine Control Module90980-12144
E 8Engine Control Module90980-12145
E 9Engine Control Module90980-12143
E10Electronically Controlled Transmission
Solenoid90980-1 1658
E12Evaporator Temp. Sensor90980-1 1918
F 1Front Fog Light LH90980-1 1660F 2Front Fog Light RH90980-1 1660
F3Front Parking Light LHF 3Front Turn Signal Light LH90980-1 1020
F4Front Parking Light RH90980-1 1020
F 4Front Turn Signal Light RH
F 5Front Wiper Deicer90980-1 1407
F 6Front Wiper Motor90980-1 1599
F 7Fusible Link Block-
F 8Front Power Outlet90980-10760
F10Front Door Speaker LH90980-10935F11Front Door Speaker RH90980-10935
F12Fuel Pump90980-1 1077F12Fuel Sender90980-11077
F14Front Washer Motor90980-1 1019
G 1Generator90980-1 1964
G 2Generator90980-09365
G 4Glove Box Light90980-1 1098
G 5Gateway ECU90980-1 1911
H 1Headlight LH (High Beam)90980-1 1659
H 2Headlight LH (Low Beam)90980-1 1660
H 3Headlight RH (High Beam)90980-1 1659
H 4Headlight RH (Low Beam)90980-1 1660
H 6Heated Oxygen Sensor (Bank 2 Sensor 2)90980-1 1930
H 7Horn LH90980-10619H 8Horn RH90980-10619
H 9Heater Relay82660-44010
H10Heated Oxygen Sensor (Bank 1 Sensor 2)90980-1 1929
H11High Mounted Stop Light90980-1 1148
I 2Ignition Coil and Igniter No.1
I 3Ignition Coil and Igniter No.2
I 4Ignition Coil and Igniter No.390980-1 1885I 5Ignition Coil and Igniter No.490980-1 1885
I 6Ignition Coil and Igniter No.5
I 7Ignition Coil and Igniter No.6
I8Injector No.1 (2AZ-FE)90980-1 1875I 8Injector No.1 (3MZ-FE)90980-1 1153
I9Injector No.2 (2AZ-FE)90980-1 1875I 9Injector No.2 (3MZ-FE)90980-1 1153
I10Injector No.3 (2AZ-FE)90980-1 1875I10Injector No.3 (3MZ-FE)90980-1 1153
I11Injector No.4 (2AZ-FE)90980-1 1875I11Injector No.4 (3MZ-FE)90980-1 1153
I12Injector No.590980-1 1153I13Injector No.690980-11153
I14Ignition Key Cylinder Illumination90980-1 1148
I15Ignition SW90980-1 1615
I16Interior Light90980-10908
I17Inner Mirror90980-1 1794
J 1Junction Connector
J 2Junction Connector90980-1 1194J 3Junction Connector90980-1 1194
J 4Junction Connector
J 5Junction Connector90980-1 1542
J 6Junction Connector90980-1 1915
J 7Junction Connector90980-1 1542
J10Junction Connector90980-10807J12Junction Connector90980-10807
J13Junction Connector90980-1 1915
J14Junction Connector90980-10976
J16Junction Connector90980-1 1915J17Junction Connector90980-1 1915
J18Junction Connector
J19Junction Connector90980-1 1542
J20Junction Connector
J21Junction Connector
J22Junction Connector90980-12374J23Junction Connector90980-12374
J24Junction Connector
K 1Knock Sensor (Bank 1)
K 2Knock Sensor (Bank 1)90980-1 1875
K 3Knock Sensor (Bank 2)
K4Key Interlock Solenoid90980-10795K 4Unlock Warning SW90980-10795
L 1License Plate light90980-1 1300
M 1Mass Air Flow Meter90980-1 1317
M 2Main SW90980-10957
M 3Multi-Display90980-12203
M 4Multi-Display90980-12410
M 5Multi-Display90980-12012
N 1Noise Filter (Ignition System)90980-10843
N 2Noise Filter (Rear Window Defogger)90980-10860
N 3Navigation ECU90980-1 1973

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.
2005 HIGHLANDER (EWD592U)
344
N 4Navigation ECU90980-1 1923
O 1Oil Pressure SW90980-1 1363
O 3Option Connector 190980-10908O 4Option Connector 290980-10908
O 5Overhead J/B90980-12183
O 6Occupant Classification ECU90980-12356
O 7Occupant Classification ECU90980-12357
O 8Occupant Classification Sensor Front LH90980-12353
O 9Occupant Classification Sensor Front RH90980-12354O10Occupant Classification Sensor Rear LH90980-12354
O11Occupant Classification Sensor Rear RH90980-12353
A/T Indicator SW
P 1Back-Up Light SW90980-12362
Park/Neutral Position SW
P 2Power Steering Oil Pressure SW90980-1 1428
P 3Parking Brake SW90980-10871
P 5Power Window Master SW with ECU90980-12166
P 6Power Window Motor Front LH
P 7Power Window Motor Front RH90980-10797P 8Power Window Motor Rear LH90980-10797
P 9Power Window Motor Rear RH
P10Power Window SW Front RH
P11Power Window SW Rear LH90980-10799
P12Power Window SW Rear RH
P13Pretensioner LH90980-12253P14Pretensioner RH90980-12253
P15Power Seat Control SW (Driver's Seat
Control)90980-10997
P16Power Seat Control SW (Driver's Seat
Lumbar Support Control)90980-10789
P18Power Seat Motor (Driver's Seat Lumbar
Support Control)
P20Power Seat Motor (Driver's Seat Reclining
Control)90980-10825
P21Power Seat Motor (Driver's Seat Slide
Control)
P22Pressure SW90980-10906
P23Power Outlet (110V)90980-10601
P24Power Seat Control SW (Front Passenger's
Seat Control)90980-10997
P25Power Seat Motor (Driver's Seat Front Tilt
Control)
P26Power Seat Motor (Driver's Seat Lifter
Control)
90980-10825
P27Power Seat Motor (Front Passenger's Seat
Reclining Control)90980-10825
P28Power Seat Motor (Front Passenger's Seat
Slide Control)
R 1Radiator Fan Motor90980-10928
R 2Radio and Player90980-10996
R 3Radio and Player90980-10997
R 4Radio and Player90980-12038
R 5Remote Control Mirror SW90980-1 1657
R 6Room Temp. Sensor90980-1 1918
R 7Rear Combination Light LH90980-10797R 8Rear Combination Light RH90980-10797
R 9Rear Door Speaker LH90980-10935R10Rear Door Speaker RH90980-10935
R11Rear Interior Light90980-10908
R12Rear Interior Light SW90980-10860
R13Rear Power Outlet90980-10760
R14Rear Side Marker Light LH90980-1 1159
R15Rear Side Marker Light RH90980-10534
R16Rear Window Defogger90980-1 1259R17Rear Window Defogger90980-11259
R18Rear Wiper Motor90980-10908
R19Remote Control Mirror LH90980-10798R20Remote Control Mirror RH90980-10798
R21Rear Washer Motor90980-1 1051
R22Radio and Player90980-12183
R23Radio and Player90980-12259
R24Rear Heater Main SW90980-10933
R25Rear Heater Blower Motor90980-10795
R26Rear Heater Blower SW90980-1 1527
R27Rear Heater Relay82660-53010
R28Rear Seat Entertainment Display90980-12153R29Rear Seat Entertainment ECU90980-12153
R30Rear Seat Entertainment ECU90980-12200
R31Rear Seat Entertainment ECU90980-12259
S 1Starter90980-1 1400
S 2Starter90980-09463
S 3Seat Heater SW LH90980-10957
S 4Seat Heater SW RH90980-10933
S 5Shift Lock ECU90980-1 1319
S14Steering Sensor82824-45030
S15Stop Light SW90980-1 1118
S16Side Airbag Sensor Front LH90980-12225S17Side Airbag Sensor Front RH90980-12225
S18Side Airbag Squib LH90980-1 1864S19Side Airbag Squib RH90980-1 1864
S20Sliding Roof Control ECU90980-10801
S22Stereo Power Amplifier90980-10807
S23Stereo Power Amplifier90980-10848
S25Seat Heater LH90980-10797S26Seat Heater RH90980-10797
S27Skid Control ECU with Actuator90980-12297

L
CodePart Name Part NumberCodePart Name Part Number
2005 HIGHLANDER (EWD592U)
345
S28Short Connector90980-12366
S29Short Connector90980-12365
S30Short Connector90980-10859
S31Short Connector90980-10860
S32Side Airbag Sensor Rear LH90980-12225S33Side Airbag Sensor Rear RH90980-12225
T 1Theft Deterrent Horn90980-10619
T 3Turbine Speed Sensor90980-1 1156
T 4Theft Deterrent ECU90980-12169
T 5Theft Deterrent Indicator Light90980-12063
T 6TRAC Off SW90980-1 1013
T 7Transponder Key Amplifier90980-12092
T 8Turn Signal Flasher90980-10799
T 9Towing Converter90980-1 1527
T10Trailer Hitch90980-10794
T11Tweeter LH90980-1 1013T12Tweeter RH90980-1 1013
T13Throttle Control Motor90980-1 1858T13Throttle Position Sensor90980-11858
T14Transponder Key Computer90980-1 1911
T15Telltale Light Assembly
Indicator Light Wire Sub Assembly90980-12221T16Transmission Control SW90980-12221
Transmission Shift Main SW
V 2VSV (ACIS No.2)90980-1 1149
V 4VSV (EVAP)90980-1 1156V 5VSV (ACM)90980-11156
V 6VVT Sensor LH90980-10947V 7VVT Sensor RH90980-10947
V 8VSC Warning Buzzer90980-10906
V9Garage Door OpenerV 9Vanity Light LH90980-1 1369
V10Vanity Light RH
V11Vapor Pressure Sensor90980-1 1860
V13Video Terminal90980-12221
V14VSV (Canister Closed Valve)90980-1 1859
V15Voltage Inverter90980-10799
W 1Washer Level Sensor90980-1 1068
W 3Water Temp. SW No.190980-1 1235
W 4Water Temp. SW No.290980-1 1243
W 5Wireless Door Lock Buzzer90980-1 1142
W 6Wireless Door Lock ECU90980-1 1909
Y 1Yaw Rate Sensor90980-1 1904

2005 HIGHLANDER (EWD592U)
38
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[3MZ-FE]
A 1 A/C Ambient Temp. Sensor
A 2 A/C Lock Sensor
A/C Magnetic Clutch
A 3 Pressure SW
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Air Fuel Ratio Sensor (Bank 1 Sensor 1)
A 7 Air Fuel Ratio Sensor (Bank 2 Sensor 1)
A 8 Airbag Sensor Front LH
A 9 Airbag Sensor Front RH
B 4 Brake Warning SW
C 3 Camshaft Timing Oil Control Valve LH
C 4 Camshaft Timing Oil Control Valve RH
C 5 Condenser Fan Motor
C 6 Counter Gear Speed Sensor
C 7 Crankshaft Position Sensor
E 1 Electronically Controlled Transmission Solenoid
E 2 Engine Coolant Temp. Sensor
E 3 Engine Hood Courtesy SWF 1 Front Fog Light LH
F 2 Front Fog Light RH
F 3 Front Parking Light LH
Front Turn Signal Light LH
F 4 Front Parking Light RH
Front Turn Signal Light RH
F 5 Front Wiper Deicer
F 6 Front Wiper Motor
F 7 Fusible Link Block
F 14 Front Washer Motor
G 1 Generator
G 2 Generator
H 1 Headlight LH (High Beam)
H 2 Headlight LH (Low Beam)
H 3 Headlight RH (High Beam)
H 4 Headlight RH (Low Beam)
H 6 Heated Oxygen Sensor (Bank 2 Sensor 2)
H 7 Horn LH
H 8 Horn RH