Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other Lexus SC II

BUZZERS, RELAYS & TIMERS

ComponentComponent Location
ABS MOTOR RelayIn engine room No. 4 R/B.
ABS SOL RelayIn engine room No. 4 R/B.
A/C COMP RelayIn engine room No. 4 R/B. (Схема №4)
Auto Antenna Control Relay & MotorAt right side of luggage compartment. (Схема №3)
CIR OPN RelayIn engine room No. 2 R/B. (Схема №4)
CRA RelayIn engine room No. 2 R/B. (Схема №4)
EFI RelayIn engine room No. 2 R/B. (Схема №4)
FAN RelayIn engine room No. 2 R/B. (Схема №4)
F/PMP RelayIn engine room No. 2 R/B. (Схема №4)
FR FOG RelayIn engine room No. 2 R/B. (Схема №4)
Headlight Cleaner Control RelayAt left front of engine compartment, behind bumper. (Схема №1)
Heater RelayIn engine room No. 2 R/B. (Схема №4)
Horn RelayIn engine room No. 2 R/B. (Схема №4)
Starter RelayIn engine room No. 2 R/B. (Схема №4)
TRAC Motor RelayIn engine room No. 2 R/B. (Схема №4)
Turn Signal Flasher RelayBehind left side of dash, above steering column. (Схема №2)
VSC Warning BuzzerBehind left side of dash.
Wash RelayIn engine room R/B No. 2. (Схема №4)

BUZZERS, RELAYS & TIMERS LOCATION

CIRCUIT PROTECTION DEVICES

ComponentComponent Location
Center J/BBehind right center of dash. (Схема №2)
Driver Side J/BBehind left kick panel. (Схема №2)
ECU BoxAt left front corner of engine compartment. (Схема №1)
Engine Room No. 1 J/BOn right side of engine compartment, behind strut tower.
Engine Room No. 1 R/BOn right side of engine compartment, behind strut tower. (Схема №1)
Engine Room No. 2 R/BOn left side of engine compartment, forward of strut tower. (Схема №1)
Instrument Panel J/BBehind upper center of dash. (Схема №2)
Luggage Room J/BAt left rear corner of luggage compartment. (Схема №3)
Passenger Side J/BBehind right kick panel. (Схема №2)

CIRCUIT PROTECTION DEVICES LOCATION

CONTROL UNITS

ComponentComponent Location
A/C Control AssemblyBehind center of dash. (Схема №2)
Blower Motor ControllerBehind right side of dash.
Cooling Fan ECUIn front of engine compartment, near cooling fan assembly. (Схема №1)
Driver Door ECUIn driver's door. (Схема №3)
Driver Side J/B ECUBehind left kick panel. (Схема №2)
Engine Control ModuleAt left side of engine compartment, in ECU box. (Схема №1)
Front ControllerOn engine room No. 2 R/B. (Схема №4)
Gateway ECUBehind right side of dash. (Схема №2)
Headlight Beam Level Control ECUBehind left end of dash. (Схема №2)
Headlight Control ECU (Left/Right)Behind respective headlight.
Luggage Room J/B ECUAt left rear corner of luggage compartment. (Схема №3)
Navigation ECUAt right rear corner of luggage compartment. (Схема №3)
Passenger Door ECUIn right door. (Схема №3)
Passenger Side J/B ECURight side kick panel. (Схема №2)
Power Seat ECU (Driver's/Passenger's)Under respective seat.
Seat Heater Controller (Driver's/Passenger's)Under respective seat.
Shift Lock Control ECUUnder center console, near selector lever. (Схема №2)
Skid Control ECUBehind left end of dash. (Схема №2)
Sliding Roof Control ECUIn left rear of luggage compartment. (Схема №3)
Telephone ComputerCenter rear of luggage compartment. (Схема №3)
Theft Deterrent ECUBehind left end of dash. (Схема №2)
Tilt & Telescopic ECUBehind left end of dash. (Схема №2)
Tire Pressure Monitor ReceiverBehind center of dash, below radio. (Схема №2)
Transponder Key ComputerLeft side of dash, behind gauge assembly. (Схема №2)
Wireless Door Lock Control ReceiverOn center of roof header. (Схема №3)

CONTROL UNITS LOCATION

MOTORS

ComponentComponent Location
Air Foot Control Servo MotorBehind center of dash. (Схема №6)
Air Inlet Control Servo MotorBehind right side of dash. (Схема №6)
Air Mix Control Servo Motor (Driver Side)Behind left center side of dash. (Схема №6)
Air Mix Control Servo Motor (Passenger Side)Behind right center side of dash. (Схема №6)
Air Vent Mode Servo MotorBehind center of dash. (Схема №6)
Blower MotorBehind lower right side of dash. (Схема №6)
Front Wiper MotorOn left side of firewall. (Схема №5)
Fuel Lid Opener MotorAt left side of luggage compartment.
Fuel Pump & SenderIn fuel tank.
Headlight Cleaner MotorAt left front corner of engine compartment, behind headlight. (Схема №5)
Luggage Compartment Door Closer Motor (Left/Right)At respective side of luggage compartment.
Luggage Compartment Door Drive Motor (Left/Right)At respective side of luggage compartment.
Luggage Compartment Door Lock Motor & Detection SwitchIn luggage compartment, near lock assembly.
Package Tray MotorBelow center of package tray.
Roof Drive Motor (Left/Right)Below respective "C" pillar.
Roof Lock MotorAt front of roof.

MOTORS LOCATION

SENDING UNITS & SENSORS

ComponentComponent Location
ABS Speed Sensor (4)At respective wheel assembly.
A/C Ambient Temperature SensorAt center of front bumper, behind grille. (Схема №5)
Accel Pedal Position SensorBehind left center of dash. (Схема №6)
A/C Magnetic Clutch & Lock SensorOn A/C compressor. (Схема №5)
A/C Room Temperature SensorBehind center of dash. (Схема №6)
A/C ThermistorBehind center of dash. (Схема №6)
Air Bag Sensor AssemblyAt center of dash, below radio. (Схема №2)
Air Bag Sensor (Front Left)At left front of engine compartment.
Air Bag Sensor (Front Right)At right front of engine compartment.
Automatic Light Control Sensor & A/C Solar SensorBehind upper right side of dash. (Схема №6)
Camshaft Position SensorOn left front of engine. (Схема №5)
Crankshaft Position SensorOn left front of engine. (Схема №5)
Engine Coolant Temperature SensorOn top right side of engine. (Схема №5)
Engine Oil Level SensorOn right front of engine.
Exhaust Gas SensorAt left front of engine compartment. (Схема №5)
Fuel Pump & SenderIn fuel tank.
Fuel Sender (Sub)In fuel tank.
Heated Oxygen Sensor (Bank 1 Sensor 1)On left side of engine, in exhaust manifold. (Схема №5)
Heated Oxygen Sensor (Bank 1 Sensor 2)On exhaust system, near catalytic converter.
Heated Oxygen Sensor (Bank 2 Sensor 1)On right side of engine, in exhaust manifold. (Схема №5)
Heated Oxygen Sensor (Bank 2 Sensor 2)On exhaust system, near catalytic converter.
Height Control Sensor (Front)Forward of left front strut tower. (Схема №5)
Height Control Sensor (Rear)Under left rear of vehicle.
Knock Sensor (Left)On top center of engine. (Схема №5)
Knock Sensor (Right)On top center of engine. (Схема №5)
Magnetic Field SensorBeneath top center of dash.
Mass Airflow (MAF) MeterOn right side of engine compartment, in air intake duct. (Схема №5)
Master Cylinder Pressure SensorAt left rear corner of engine compartment.
O/D Direct Clutch Speed SensorOn transmission.
Power Seat Position SensorUnder driver's seat.
Seat Belt Warning Occupant Detection SensorUnder passenger's seat.
Side Air Bag Sensor (Left/Right)Behind interior trim, forward of rear wheel.
Steering SensorOn steering column.
Throttle Control Motor & SensorOn throttle body. (Схема №5)
Vapor Pressure SensorUnder left rear of vehicle.
Vehicle Speed Sensor (Electronically Controlled Transmission)On transmission.
VVT Sensor (Left)On top left side of engine.
VVT Sensor (Right)On top right side of engine.
Yaw Rate SensorUnder rear of center console.

SENDING UNITS & SENSORS LOCATION

SOLENOIDS & SOLENOID VALVES

ComponentComponent Location
Camshaft Timing Oil Control Valve (Left)On top left side of engine. (Схема №5)
Camshaft Timing Oil Control Valve (Right)On top right side of engine. (Схема №5)
Electronically Controlled Transmission SolenoidIn transmission.
Headlight Beam Level Control Actuator (Left)At front of engine compartment, behind left headlight. (Схема №5)
Headlight Beam Level Control Actuator (Right)At front of engine compartment, behind right headlight. (Схема №5)
PPS SolenoidAt right front of engine.
Tension Reducer Solenoid (Left/Right)At base of respective "B" pillar.
Unlock Warning Switch & Key Interlock SolenoidBehind left side of dash.
VSV (ACIS)On top right rear of engine.
VSV (Canister Closed Valve)On right side of engine.
VSV (EVAP)On top rear of engine.
VSV (Vapor Pressure Sensor)Under left rear of vehicle.

SOLENOIDS & SOLENOID VALVES LOCATION

SWITCHES

ComponentComponent Location
A/C Dual Pressure SwitchAt upper left radiator support, integral to A/C triple pressure switch.
A/C Single Pressure SwitchAt upper left radiator support, integral to A/C triple pressure switch.
A/C Triple Pressure SwitchAt upper left radiator support. (Схема №5)
Brake Fluid Level Warning SwitchIn brake fluid reservoir. (Схема №5)
Buckle Switch (Left/Right)In respective front seat belt buckle.
Combination SwitchOn steering column, behind steering wheel.
Engine Hood Courtesy SwitchAt front center of engine compartment. (Схема №5)
Limit Switch (Luggage Compartment Door Open & Close)Right rear of luggage compartment.
Limit Switch (Left/Right Luggage Front Lock)At respective rear side of luggage compartment.
Limit Switch (Roof Close) (Left/Right)At respective side of roof.
Limit Switch (Roof Lock)At left side of roof.
Oil Pressure SwitchOn left front side of engine.
Parking Brake SwitchBehind left side of dash.
Park/Neutral Position SwitchOn transmission.
Stoplight SwitchOn top of brake pedal bracket.
Unlock Warning Switch & Key Interlock SolenoidBehind left side of dash.
Washer Level Warning SwitchAt left front corner of engine compartment.
Water Temperature SwitchAt front of engine compartment, behind left side of grille.

SWITCHES LOCATION

MISCELLANEOUS

ComponentComponent Location
Data Link Connector (DLC) No. 1At left side of engine compartment, behind ECU box.
Data Link Connector (DLC) No. 3Behind left side of dash. (Схема №6)
Diode (Luggage Compartment Door Open Detection)At left side of luggage compartment.
Fuel Pump ResistorAt left rear of engine compartment. (Схема №5)
IgnitorAt each individual ignition coil.
Junction Connectors No. 1, 2 & 3In engine room No. 2 R/B.
Junction Connectors No. 4, 5, 6 & 7In ECU box.
Junction Connector No. 8Behind left end of dash.
Junction Connectors No. 9 & 10Behind top left end of dash.
Junction Connector No. 11Behind center of dash, below radio.
Junction Connectors No. 12, 13 & 14Behind right side of dash.
Navigation AmplifierAt right rear corner of luggage compartment.
Noise Filter (2)In passenger's side J/B.
Noise Filter (High Mounted Stoplight)At left front corner of luggage compartment.
Noise Filter (Ignition No. 1)On top right side of engine.
Noise Filter (Ignition No. 2)At top left rear of engine.
Noise Filter (Rear Window Defogger)At left front corner of luggage compartment.
Noise Filter (Stoplight)At left front corner of luggage compartment.
Pretensioner (Left/Right)At base of respective "B" pillar.
Short ConnectorAt rear center of luggage compartment.
Stereo Component AmplifierAt right rear corner of luggage compartment. (Схема №3)
Telephone Microphone AmplifierBehind right end of dash. (Схема №2)
Theft Deterrent HornAt right front of engine compartment.
Tire Pressure Antenna (Front) (Left/Right)At respective front wheelwell.
Tire Pressure Antenna (Rear) (Left/Right)At respective rear side of luggage compartment.
Transponder Key AmplifierBehind dash, right of steering column. (Схема №2)

MISCELLANEOUS LOCATION

CONNECTORS

ComponentComponent Location
BA1 (White, 2 Pin)At left quarterpanel. (Схема №3)
BA2 (White, 4 Pin)At left quarterpanel. (Схема №3)
BB1 (White, 2 Pin)At left quarterpanel.
BC1 (White, 12 Pin)Near stereo amplifier.
BD1 (White, 13 Pin)Under driver's seat.
BE1 (White, 13 Pin)Under front passenger's seat.
EA1 (White, 10 Pin)Inside of ECU Box. (Схема №5)
EA2 (White, 9 Pin)Inside of ECU Box. (Схема №5)
EB1 (Black, 3 Pin)Behind intake manifold.
IA1 (Yellow, 2 Pin)Near driver's side junction block.
IA2 (White, 18 Pin)Near driver's side junction block.
IB1 (Yellow, 2 Pin)At left kick panel.
IB2 (Gray, 1 Pin)At left kick panel.
IC1 (White, 24 Pin)At left kick panel.
IC2 (Gray, 1 Pin)At left kick panel.
IC3 (White, 11 Pin)At left kick panel.
ID1 (White, 18 Pin)At left kick panel.
ID2 (White, 1 Pin)At left kick panel.
IE1 (White, 13 Pin)At left kick panel.
IE2 (White, 18 Pin)At left kick panel.
IE3 (White, 22 Pin)At left kick panel.
IF1 (White, 14 Pin)Near left side of blower unit. (Схема №6)
IG1 (White, 18 Pin)Near right side dash brace.
IG2 (White, 14 Pin)Near right side dash brace.
IH1 (White, 3 Pin)Near passenger's side junction block. (Схема №6)
II1 (White, 22 Pin)Behind right end of dash. (Схема №6)
IJ1 (Yellow, 2 Pin)Near passenger's side junction block.
IJ2 (White, 18 Pin)Near passenger's side junction block.
IK1 (Yellow, 2 Pin)At right kick panel.
IK2 (Gray, 1 Pin)At right kick panel.
IL1 (White, 24 Pin)At right kick panel.
IL2 (White, 11 Pin)At right kick panel.
IM1 (White, 5 Pin)At right kick panel. (Схема №6)
IM2 (White, 2 Pin)At right kick panel. (Схема №6)

CONNECTORS LOCATION

GROUNDS

ComponentComponent Location
BLUnder driver's seat. (Схема №3)
BMUnder passenger's seat.
BNAt left quarterpanel. (Схема №3)
BONear stereo component amplifier. (Схема №3)
BPAt left quarterpanel. (Схема №3)
BQAt right quarterpanel. (Схема №3)
EARear of right fender. (Схема №5)
EBRight side of cylinder head. (Схема №5)
ECLeft side of cylinder head. (Схема №5)
EDRear of left fender. (Схема №5)
EERear of left fender. (Схема №5)
IFAt left kick panel. (Схема №6)
IGLeft side of steering column. (Схема №6)
IHUnder steering column. (Схема №6)
IIOn left side dash brace. (Схема №6)
IJOn right side dash brace. (Схема №6)
IKAt right kick panel. (Схема №6)

GROUNDS LOCATION