Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other Lexus GS II

BUZZERS, RELAYS & TIMERS

ComponentComponent Location
ABS MOTOR RelayIn engine room relay block No. 2.
ABS SOL RelayIn engine room relay block No. 2.
A/C COMP RelayIn engine room relay block No. 3.
Daytime Running Light Relay (Main)Behind right end of dash. (Схема №4)
Daytime Running Light Relay No. 3At left front corner of engine compartment. (Схема №3)
Daytime Running Light Relay No. 4At left front corner of engine compartment. (Схема №3)
DEF RelayIn passenger side relay block.
DIMMER DRL No. 2 RelayIn engine room relay block No. 3.
EFI RelayIn engine room relay block No. 1.
ENG MAIN RelayIn engine room relay block No. 1.
FAN No. 1 RelayIn engine room relay block No. 3.
FAN No. 2 RelayIn engine room relay block No. 3.
FAN No. 3 RelayIn engine room relay block No. 3.
FOG RelayIn driver side junction block.
Headlight Cleaner Control RelayAt left front corner of engine compartment, behind headlight. (Схема №3)
HEAD LP RelayIn engine room relay block No. 1.
HORN RelayIn engine room relay block No. 2.
HTR RelayIn passenger side relay block.
IG RelayIn passenger side junction block.
MIR RelayIn passenger side junction block.
STARTER RelayIn engine room relay block No. 1.
TAIL RelayIn driver side junction block.
Telephone Transceiver & Speaker RelayAt right side of luggage compartment. (Схема №5)
TRAC MOTOR RelayIn engine room relay block No. 2.
Turn Signal FlasherBehind left side of dash, near driver side junction block. (Схема №4)
VSC Warning BuzzerBehind left side of dash.
Wireless Door Lock Buzzer (3.0L)Left rear corner of engine compartment. (Схема №1)
Wireless Door Lock Buzzer (4.0L)Left rear corner of engine compartment. (Схема №2)

BUZZERS, RELAYS & TIMERS

CIRCUIT PROTECTION DEVICES

ComponentComponent Location
Driver Side Junction BlockBehind lower left end of dash. (Схема №4)
ECU BoxAt left front corner of engine compartment. (Схема №3)
Engine Room Relay Block No. 1On right side of engine compartment, behind strut tower. (Схема №3)
Engine Room Relay Block No. 2On left side of engine compartment, behind strut tower. (Схема №3)
Engine Room Relay Block No. 3On left side of engine compartment, front of strut tower. (Схема №3)
Instrument Panel Junction BlockBehind upper center of dash. (Схема №4)
Passenger Side Junction BlockBehind lower right end of dash. (Схема №4)
Passenger Side Relay BlockBehind lower right end of dash. (Схема №4)

CIRCUIT PROTECTION DEVICES

CONTROL UNITS

ComponentComponent Location
ABS & TRAC & VSC ECUBehind left side of dash. (Схема №4)
A/C Control AssemblyBehind center of dash. (Схема №4)
Blower Motor ControllerBehind right side of dash.
Body ECU No. 1In passenger side junction block. (Схема №4)
Body ECU No. 2In driver side junction block. (Схема №4)
Center Air Bag Sensor AssemblyBehind center of dash, forward of center console. (Схема №4)
Driver Door ECUIn driver's door. (Схема №5)
Engine Control ModuleAt left side of engine compartment, in ECU box. (Схема №3)
Fuel Pump Control ECUAt left side of luggage compartment. (Схема №5)
Headlight Beam Level Control ECUAt left front corner of engine compartment. (Схема №3)
Headlight Control ECU (Left)Behind left headlight. (Схема №3)
Headlight Control ECU (Right)Behind right headlight. (Схема №3)
Moon Roof Control ECUIn front of moon roof opening. (Схема №5)
Navigation ECUAt right rear corner of luggage compartment. (Схема №5)
Passenger Door ECUIn right front door. (Схема №5)
Power Seat ECUUnder driver's seat.
PPS ECUBehind left side of dash. (Схема №4)
Rear Door ECU (Left)In left rear door. (Схема №5)
Rear Door ECU (Right)In right rear door. (Схема №5)
Shift Lock Control ECUUnder center console, near selector lever. (Схема №4)
Tilt & Telescopic ECUBehind left side of dash. (Схема №4)
Wireless Door Lock ECUAt right side of luggage compartment. (Схема №5)

CONTROL UNITS

MOTORS

ComponentComponent Location
ABS & TRAC & VSC Actuator (3.0L)At left rear corner of engine compartment. (Схема №1)
ABS & TRAC & VSC Actuator (4.0L)At left rear corner of engine compartment. (Схема №2)
A/C Condenser Fan Motor (3.0L)In front of left side of radiator. (Схема №1)
A/C Condenser Fan Motor (4.0L)In front of left side of radiator. (Схема №2)
Air Inlet Control Servo MotorBehind right side of dash.
Air Mix Control Servo Motor (Driver Side)Behind center of dash.
Air Mix Control Servo Motor (Front Passenger Side)Behind right side of dash.
Air Vent Mode Control Servo MotorBehind right side of dash.
Blower MotorBehind lower right side of dash.
Front Wiper Motor (3.0L)On left side of firewall. (Схема №1)
Front Wiper Motor (4.0L)On left side of firewall. (Схема №2)
Fuel Lid Opener MotorAt left side of luggage compartment.
Fuel Pump & SenderIn fuel tank.
Headlight Cleaner Motor (3.0L)At left front corner of engine compartment, behind headlight. (Схема №1)
Headlight Cleaner Motor (4.0L)At left front corner of engine compartment, behind headlight. (Схема №2)
Radiator Fan Motor (3.0L)At left front of engine compartment. (Схема №1)
Radiator Fan Motor (4.0L)At left front of engine compartment. (Схема №2)
Throttle Control Motor (3.0L)On throttle body. (Схема №1)
Throttle Control Motor (4.0L)On throttle body. (Схема №2)
Washer Motor (3.0L)At left front corner of engine compartment. (Схема №1)
Washer Motor (4.0L)At left front corner of engine compartment. (Схема №2)

MOTORS

SENDING UNITS & SENSORS

ComponentComponent Location
ABS Deceleration SensorUnder rear of center console.
ABS Speed Sensor (4)At respective wheel assembly.
A/C Ambient Temperature Sensor (3.0L)Near top left side of radiator support. (Схема №1)
A/C Ambient Temperature Sensor (4.0L)Near top left side of radiator support. (Схема №2)
Accel Position Sensor (3.0L)On rear left side of engine. (Схема №1)
Accel Position Sensor (4.0L)On top center of engine. (Схема №2)
A/C Magnetic Clutch & Lock Sensor (3.0L)On A/C compressor. (Схема №1)
A/C Magnetic Clutch & Lock Sensor (4.0L)On A/C compressor. (Схема №2)
A/C Room Temperature SensorBehind center of dash.
A/C Solar SensorAt upper right side of dash.
A/C ThermistorBehind center of dash.
Air Bag Sensor (Left Front) (3.0L)At left front corner of engine compartment. (Схема №1)
Air Bag Sensor (Left Front) (4.0L)At left front corner of engine compartment. (Схема №2)
Air Bag Sensor (Right Front) (3.0L)At right front corner of engine compartment. (Схема №1)
Air Bag Sensor (Right Front) (4.0L)At right front corner of engine compartment. (Схема №2)
Automatic Light Control SensorBehind upper left side of dash.
Camshaft Position Sensor (3.0L)On top center rear of engine. (Схема №1)
Camshaft Position Sensor (4.0L)On left front of engine. (Схема №2)
Crankshaft Position Sensor (3.0L)On left front of engine. (Схема №1)
Crankshaft Position Sensor (4.0L)On left front of engine. (Схема №2)
Engine Coolant Temperature Sensor (3.0L)On top left front of engine. (Схема №1)
Engine Coolant Temperature Sensor (4.0L)On top right side of engine. (Схема №2)
Engine Oil Level Sensor (3.0L)On left front of engine. (Схема №1)
Engine Oil Level Sensor (4.0L)On right front of engine. (Схема №2)
Exhaust Gas Sensor (3.0L)At left front of engine compartment. (Схема №1)
Exhaust Gas Sensor (4.0L)At left front of engine compartment. (Схема №2)
Fuel Pump & SenderIn fuel tank.
Fuel Sender (Sub)In fuel tank.
Heated Oxygen Sensor (Bank 1 Sensor 1) (3.0L)On left side of engine, in exhaust manifold. (Схема №1)
Heated Oxygen Sensor (Bank 1 Sensor 1) (4.0L)On left side of engine, in exhaust manifold. (Схема №2)
Heated Oxygen Sensor (Bank 1 Sensor 2) (3.0L)On exhaust system, near catalytic converter. (Схема №1)
Heated Oxygen Sensor (Bank 1 Sensor 2) (4.0L)On exhaust system, near catalytic converter.
Heated Oxygen Sensor (Bank 2 Sensor 1) (3.0L)On right side of engine, in exhaust manifold. (Схема №1)
Heated Oxygen Sensor (Bank 2 Sensor 1) (4.0L)On right side of engine, in exhaust manifold. (Схема №2)
Heated Oxygen Sensor (Bank 2 Sensor 2)On exhaust system, near catalytic converter.
Height Control Sensor (Front) (3.0L)Forward of left front strut tower. (Схема №1)
Height Control Sensor (Front) (4.0L)Forward of left front strut tower. (Схема №2)
Height Control Sensor (Rear)Under left rear of vehicle.
Knock Sensor No. 1 (3.0L)On left front of engine. (Схема №1)
Knock Sensor No. 1 (4.0L)On top center of engine. (Схема №2)
Knock Sensor No. 2 (3.0L)On left side of engine. (Схема №1)
Knock Sensor No. 2 (4.0L)On top center of engine. (Схема №2)
Light Failure SensorAt left side of luggage compartment. (Схема №5)
Mass Airflow (MAF) Meter (3.0L)On right side of engine compartment, in air intake duct. (Схема №1)
Mass Airflow (MAF) Meter (4.0L)On right side of engine compartment, in air intake duct. (Схема №2)
Master Cylinder Pressure Sensor (3.0L)At left rear corner of engine compartment. (Схема №1)
Master Cylinder Pressure Sensor (4.0L)At left rear corner of engine compartment. (Схема №2)
O/D Direct Clutch Speed Sensor (3.0L)On transmission. (Схема №1)
O/D Direct Clutch Speed Sensor (4.0L)On transmission. (Схема №2)
Seat Belt Warning Occupant Detection SensorUnder front passenger's seat.
Side Air Bag Sensor (Left/Right)Near base of respective "B" pillar.
Throttle Position Sensor (3.0L)On throttle body. (Схема №1)
Throttle Position Sensor (4.0L)On throttle body. (Схема №2)
Vapor Pressure SensorUnder left rear of vehicle.
Vehicle Speed Sensor (Electronically Controlled Transmission) (3.0L)On transmission. (Схема №1)
Vehicle Speed Sensor (Electronically Controlled Transmission) (4.0L)On transmission. (Схема №2)
VVT Sensor (Left) (4.0L)On top left side of engine. (Схема №2)
VVT Sensor (Right) (4.0L)On top right side of engine. (Схема №2)
Yaw Rate SensorUnder rear of center console.

SENDING UNITS & SENSORS

SOLENOIDS & SOLENOID VALVES

ComponentComponent Location
Camshaft Timing Oil Control Valve (3.0L)On top left side of engine. (Схема №1)
Camshaft Timing Oil Control Valve (Left) (4.0L)On top left side of engine. (Схема №2)
Camshaft Timing Oil Control Valve (Right) (4.0L)On top right side of engine. (Схема №2)
Electronically Controlled Transmission Solenoid (3.0L)In transmission. (Схема №1)
Electronically Controlled Transmission Solenoid (4.0L)In transmission. (Схема №2)
PPS Solenoid (3.0L)At left front of engine. (Схема №1)
PPS Solenoid (4.0L)At right front of engine. (Схема №2)
Unlock Warning Switch & Key Interlock SolenoidBehind left side of dash.
VSV (ACIS) (3.0L)On left rear side of engine. (Схема №1)
VSV (ACIS) (4.0L)On top right rear of engine. (Схема №2)
VSV (EVAP) (3.0L)On top rear of engine. (Схема №1)
VSV (EVAP) (4.0L)On top rear of engine. (Схема №2)
VSV (Vapor Pressure Sensor)Under left rear of vehicle.

SOLENOIDS & SOLENOID VALVES

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 Switch (3.0L)At upper left radiator support. (Схема №1)
A/C Triple Pressure Switch (4.0L)At upper left radiator support. (Схема №2)
Brake Fluid Level Warning Switch (3.0L)In brake fluid reservoir. (Схема №1)
Brake Fluid Level Warning Switch (4.0L)In brake fluid reservoir. (Схема №2)
Buckle Switch (Left/Right)In respective front seat belt buckle.
Oil Pressure Switch (3.0L)On left front side of engine. (Схема №1)
Oil Pressure Switch (4.0L)On left front side of engine. (Схема №2)
Parking Brake SwitchBehind left side of dash.
Park/Neutral Position Switch (3.0L)On transmission. (Схема №1)
Park/Neutral Position Switch (4.0L)On transmission. (Схема №2)
Power Steering Oil Pressure Switch (3.0L)At left rear of engine compartment. (Схема №1)
Unlock Warning Switch & Key Interlock SolenoidBehind left side of dash.
Washer Level Warning Switch (3.0L)At left front corner of engine compartment. (Схема №1)
Washer Level Warning Switch (4.0L)At left front corner of engine compartment. (Схема №2)
Water Temperature Switch (3.0L)At front of engine compartment, behind left side of grille. (Схема №1)
Water Temperature Switch (4.0L)At front of engine compartment, behind left side of grille. (Схема №2)

SWITCHES

MISCELLANEOUS

ComponentComponent Location
D/A ConverterBehind right side of dash.
Data Link Connector (DLC) No. 1 (3.0L)At left side of engine compartment, behind ECU box. (Схема №1)
Data Link Connector (DLC) No. 1 (4.0L)At left side of engine compartment, behind ECU box. (Схема №2)
Data Link Connector (DLC) No. 3Behind left side of dash.
Diode (Daytime Running Light)Behind right side of dash.
Diode (Luggage Compartment Door Open Detection)At left side of luggage compartment.
Noise Filter (High Mounted Stoplight)At left front corner of luggage compartment.
Noise Filter (Ignition) (3.0L)At top left front of engine. (Схема №1)
Noise Filter (Ignition) (4.0L)At top left rear of engine. (Схема №2)
Noise Filter (Rear Window Defogger)At left front corner of luggage compartment.
Noise Filter (Stoplight)At left front corner of luggage compartment.
Stereo Component Amplifier (Except NAKAMICHI)Behind right side of dash. (Схема №4)
Stereo Component Amplifier (NAKAMICHI)At right rear corner of luggage compartment. (Схема №5)
Telephone Transceiver & Speaker RelayAt right side of luggage compartment. (Схема №5)
Theft Deterrent Horn (3.0L)At right front of engine compartment. (Схема №1)
Theft Deterrent Horn (4.0L)At right front of engine compartment. (Схема №2)
Transponder Key AmplifierBehind left side of dash. (Схема №4)

MISCELLANEOUS

CONNECTORS

ComponentComponent Location
BA1 (12 Pin)Under left "B" pillar.
BB1 (12 Pin)Under right "B" pillar.
BC1 (12 Pin)Under left front seat.
BD1 (12 Pin)Under right front seat.
EA1 (3.0L) (12 Pin)Inside ECU box. (Схема №6)
EA1 (4.0L) (12 Pin)Inside ECU box. (Схема №7)
EA2 (3.0L) (10 Pin)Inside ECU box. (Схема №6)
EA2 (4.0L) (10 Pin)Inside ECU box. (Схема №7)
EA3 (3.0L) (9 Pin)Inside ECU box. (Схема №6)
EA3 (4.0L) (9 Pin)Inside ECU box. (Схема №7)
EA4 (3.0L) (11 Pin)Inside ECU box. (Схема №6)
EA4 (4.0L) (11 Pin)Inside ECU box. (Схема №7)
EB1 (3.0L) (12 Pin)Inside engine room R/B No. 3. (Схема №6)
EB1 (4.0L) (12 Pin)Inside engine room R/B No. 3. (Схема №7)
EB2 (3.0L) (4 Pin)Inside engine room R/B No. 3. (Схема №6)
EB2 (4.0L) (4 Pin)Inside engine room R/B No. 3. (Схема №7)
EC1 (4.0L) (Black, 3 Pin)Near starter. (Схема №7)
IA1 (Orange 10 Pin)Near driver side J/B.
IA2 (Blue, 18 Pin)Near driver side J/B.
IB1 (17 Pin)At left kick panel.
IC1 (Blue, 18 Pin)At left kick panel.
IC2 (Orange, 10 Pin)At left kick panel.
IC3 (20 Pin)At left kick panel.
ID1 (9 Pin)At left side of dash reinforcement.
IE1 (Blue, 18 Pin)Behind left side of dash, at left side of steering column.
IE2 (14 Pin)Behind left side of dash, at left side of steering column.
IF1 (Yellow, 2 Pin)Behind left side of dash, at right side of steering column.
IG1 (3 Pin)At left side of blower unit.
IH1 (14 Pin)At left side of blower unit.
II1 (2 Pin)Near passenger side J/B.
II2 (Blue, 18 Pin)Near passenger side J/B.
II3 (Yellow, 2 Pin)Near passenger side J/B.
II4 (Orange, 10 Pin)Near passenger side J/B.
IJ1 (Gray, 14 Pin)At left side of blower unit.
IJ2 (Blue, 22 Pin)At left side of blower unit.
IJ3 (Orange, 12 Pin)At left side of blower unit.
IK1 (17 Pin)At right kick panel.
IL1 (Blue, 18 Pin)At right kick panel.
IL2 (Orange, 10 Pin)At right kick panel.
IL3 (20 Pin)At right kick panel.
IM1 (11 Pin)At right front side of shift lever.
IM2 (Blue, 18 Pin)At right front side of shift lever.

CONNECTORS

GROUNDS

ComponentComponent Location
BJAt left rear floor partition panel. (Схема №5)
BKAt left rear quarterpanel. (Схема №5)
BLAt right rear floor partition panel. (Схема №5)
BMAt right rear quarterpanel. (Схема №5)
EA (3.0L)At middle of right inner fender panel. (Схема №6)
EA (4.0L)At middle of right inner fender panel. (Схема №7)
EB (3.0L)At middle of left inner fender panel. (Схема №6)
EB (4.0L)At middle of left inner fender panel. (Схема №7)
EC (3.0L)At front of intake manifold. (Схема №6)
EC (4.0L)On right cylinder head. (Схема №7)
ED (3.0L)At rear of intake manifold. (Схема №6)
ED (4.0L)On left cylinder head. (Схема №7)
EE (3.0L)Under ABS & TRAC & VSC actuator. (Схема №6)
EE (4.0L)Under ABS & TRAC & VSC actuator. (Схема №7)
IFAt left kick panel. (Схема №4)
IGAt left side of firewall. (Схема №4)
IHAt right dash panel brace. (Схема №4)
IIAt right side of firewall. (Схема №4)

GROUNDS