Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other Toyota 4Runner III

BUZZERS, RELAYS & TIMERS

ComponentComponent Location
ABS RelayOn right rear of engine compartment, on inner fender panel. (Схема №5)
A/C Magnetic Clutch Relay (Automatic A/C)Behind right side of dash. (Схема №6)
ADD Control RelayBehind right side of dash. (Схема №6)
Auto Antenna Control RelayBehind center of dash, near front of console. (Схема №6)
Circuit Opening RelayBehind lower left side of dash. (Схема №6)
Daytime Running Light Relay (Main)Behind left side of dash, right of steering column. (Схема №6)
Daytime Running Light Relay No. 4Behind right side of dash. (Схема №6)
DEFOG RelayOn engine room R/B.
DIMMER Relay (Canada)On engine room R/B.
EFI RelayOn engine room R/B.
Extra High Speed RelayBehind right side of dash. (Схема №6)
FLASH RelayOn driver side J/B.
FOG RelayOn engine room R/B.
HEAD RelayOn engine room R/B.
HEATER RelayOn engine room R/B.
Keyless Buzzer (2.7L)On right rear of engine compartment. (Схема №1)
Keyless Buzzer (3.4L)On right rear of engine compartment. (Схема №3)
Moon Roof Control Relay & SwitchAbove headliner, on top front center of roof. (Схема №7)
PWR OUTLET RelayOn engine room R/B.
PWR RelayOn driver side J/B.
Rear Heater RelayOn rear heater unit. (Схема №7)
STARTER RelayOn engine room R/B.
TAIL RelayOn engine room R/B.

BUZZERS, RELAYS & TIMERS

CIRCUIT PROTECTION DEVICES

ComponentComponent Location
Center J/BBehind left side of dash, to right of steering column. (Схема №6)
Driver Side J/BOn lower left side of dash. (Схема №6)
Engine Room R/BOn left side of engine compartment, on inner fender panel. (Схема №5)

CIRCUIT PROTECTION DEVICES

CONTROL UNITS

ComponentComponent Location
ABS ECUAt right kick panel. (Схема №6)
A/C Amplifier (Automatic A/C)Behind center of dash. (Схема №6)
A/C Amplifier (Manual A/C)Behind right side of dash. (Схема №6)
Back Door ECUOn left side of back door. (Схема №7)
Body ECUOn driver side J/B. (Схема №6)
Center Air Bag Sensor AssemblyBehind lower center of dash. (Схема №6)
Cruise Control Actuator W/ ECU (3.4L)On right side of engine compartment. (Схема №5)
Cruise Control ECU (2.7L)Behind lower center of dash. (Схема №6)
Differential Lock ECUAt left kick panel. (Схема №6)
Engine Control ModuleBehind right side of dash. (Схема №6)
Shift Lock Control ComputerUnder center of dash, near front of center console. (Схема №6)
Stereo Power AmplifierBehind center of dash. (Схема №6)
Transponder Key AmplifierLeft side of dash, at steering column. (Схема №6)
4WD ECUAt left kick panel. (Схема №6)

CONTROL UNITS

MOTORS

ComponentComponent Location
Auto Antenna Motor (2.7L)On right side fender panel. (Схема №2)
Auto Antenna Motor (3.4L)On right side fender panel. (Схема №4)
Blower MotorBehind right side of dash.
Front Wiper Motor (2.7L)On right side of firewall. (Схема №2)
Front Wiper Motor (3.4L)On right side of firewall. (Схема №4)
Fuel Sender & Fuel PumpIn fuel tank.
Moon Roof Control Motor & Limit SwitchAbove headliner, front center of roof.
Rear Differential Lock MotorUnder vehicle, on differential.
Rear Heater Blower MotorOn rear heater unit.
Rear Wiper MotorOn top center of back door.
Washer Motor (USA) (2.7L)On right side inner fender panel.
Washer Motor (USA) (3.4L)On right side inner fender panel.
Washer Motor & Washer Level Warning Switch (Canada) (2.7L)On right side inner fender panel.
Washer Motor & Washer Level Warning Switch (Canada) (3.4L)On right side inner fender panel.
2-4 Select Motor (3.4L)On transmission/transfer case assembly. (Схема №3)

MOTORS

SENDING UNITS & SENSORS

ComponentComponent Location
ABS Deceleration SensorBehind center of dash, front of center console. (Схема №6)
ABS Speed Sensor (Left Front) (2.7L)On left front wheel hub/spindle assembly. (Схема №2)
ABS Speed Sensor (Left Front) (3.4L)On left front wheel hub/spindle assembly. (Схема №4)
ABS Speed Sensor (Left Rear)On left rear wheel hub/spindle assembly.
ABS Speed Sensor (Right Front) (2.7L)On right front wheel hub/spindle assembly. (Схема №2)
ABS Speed Sensor (Right Front) (3.4L)On right front wheel hub/spindle assembly. (Схема №4)
ABS Speed Sensor (Right Rear)On right rear wheel hub/spindle assembly.
A/C Ambient Temperature Sensor (3.4)Left front of engine compartment, at grille. (Схема №4)
A/C ThermistorBehind right side of dash.
Air Fuel Ratio Sensor (Bank 1 Sensor 1) (California) (3.4L)Rear underside of engine compartment, in exhaust. (Схема №4)
A/T Fluid Temperature Sensor (2.7L)On transmission. (Схема №2)
A/T Fluid Temperature Sensor (3.4L)On transmission. (Схема №4)
Camshaft Position Sensor (2.7L)On left center of engine. (Схема №2)
Camshaft Position Sensor (3.4L)On top front of engine. (Схема №4)
Crankshaft Position Sensor (2.7L)On left center of engine. (Схема №2)
Crankshaft Position Sensor (3.4L)On front of engine. (Схема №4)
EGR Gas Temperature Sensor (2.7L)On top of engine. (Схема №2)
Engine Coolant Temperature Sensor (2.7L)On rear of engine. (Схема №2)
Engine Coolant Temperature Sensor (3.4L)On top front of engine. (Схема №4)
Front Air Bag Sensor (Left) (2.7L)On left front of engine compartment, behind bumper. (Схема №2)
Front Air Bag Sensor (Left) (3.4L)On left front of engine compartment, behind bumper. (Схема №4)
Front Air Bag Sensor (Right) (2.7L)On right front of engine compartment, behind bumper. (Схема №2)
Front Air Bag Sensor (Right) (3.4L)On right front of engine compartment, behind bumper. (Схема №4)
Fuel Sender & Fuel PumpIn fuel tank.
Heated Oxygen Sensor (Bank 1 Sensor 1) (2.7L)Rear underside of engine compartment, in exhaust. (Схема №2)
Heated Oxygen Sensor (Bank 1 Sensor 1) (Except California) (3.4L)Rear underside of engine compartment, in exhaust. (Схема №4)
Heated Oxygen Sensor (Bank 1 Sensor 2) (2.7L)Underside of vehicle, in exhaust. (Схема №2)
Heated Oxygen Sensor (Bank 1 Sensor 2) (3.4L)Underside of vehicle, in exhaust. (Схема №4)
Knock Sensor (2.7L)On left side, middle of engine. (Схема №1)
Knock Sensor No. 1 (3.4L)On middle of engine. (Схема №3)
Knock Sensor No. 2 (3.4L)On middle of engine. (Схема №3)
Mass Airflow Meter (2.7L)On right side of engine compartment, in air intake. (Схема №1)
Mass Airflow Meter (3.4L)On right side of engine compartment, in air intake. (Схема №3)
Throttle Position Sensor (2.7L)On throttle body assembly. (Схема №1)
Throttle Position Sensor (3.4L)On throttle body assembly. (Схема №3)
Vapor Pressure Sensor (2.7L)On left rear of engine compartment. (Схема №1)
Vapor Pressure Sensor (3.4L)On left rear of engine compartment. (Схема №3)
Vehicle Speed Sensor (Combination Meter) (2.7L)On transmission. (Схема №1)
Vehicle Speed Sensor (Electronically Controlled Transmission) (2.7L)On transmission. (Схема №1)
Vehicle Speed Sensor (Electronically Controlled Transmission-2WD) (3.4L)On transmission. (Схема №3)
Vehicle Speed Sensor (Electronically Controlled Transmission-4WD) (3.4L)On transmission. (Схема №3)
Water Temperature Sender (2.7L)On right front of engine. (Схема №1)
Water Temperature Sender (3.4L)On top rear of engine. (Схема №3)

SENDING UNITS & SENSORS

SOLENOIDS & SOLENOID VALVES

ComponentComponent Location
ABS Actuator (2.7L)On right inner fender panel. (Схема №2)
ABS Actuator (3.4L)On right inner fender panel. (Схема №4)
Cruise Control Actuator (2.7L)On right inner fender panel. (Схема №2)
Cruise Control Actuator W/ ECU (3.4L)On right inner fender panel. (Схема №5)
Electronically Controlled Transmission Solenoid (2.7L)In transmission. (Схема №2)
Electronically Controlled Transmission Solenoid (3.4L)In transmission. (Схема №4)
Idle Air Control Valve (2.7L)On top center of engine. (Схема №1)
Idle Air Control Valve (3.4L)On top right side of engine. (Схема №3)
VSV (EGR) (2.7L)On left side of engine. (Схема №1)
VSV (EVAP) (2.7L)On left side of engine compartment. (Схема №1)
VSV (EVAP) (3.4L)On left side of engine compartment. (Схема №3)
VSV (Vapor Pressure Sensor) (2.7L)On left side of engine compartment. (Схема №1)
VSV (Vapor Pressure Sensor) (3.4L)On left side of engine compartment. (Схема №3)
VSV (2WD & ADD) (2.7L)On left side of engine compartment. (Схема №1)
VSV (2WD & ADD) (3.4L)On left side of engine compartment. (Схема №3)
VSV (4WD & ADD) (2.7L)On left side of engine compartment. (Схема №1)
VSV (4WD & ADD) (3.4L)On left side of engine compartment. (Схема №3)

SOLENOIDS & SOLENOID VALVES

SWITCHES

ComponentComponent Location
A/C Dual Pressure Switch (2.7L)On right rear of engine compartment. (Схема №2)
A/C Dual Pressure Switch (3.4L)On right rear of engine compartment. (Схема №4)
ADD Indicator Switch (2.7L)On center middle of engine compartment. (Схема №2)
ADD Indicator Switch (3.4L)On center middle of engine compartment. (Схема №4)
Back-Up Light Switch (2.7L)On transmission. (Схема №2)
Back-Up Light Switch (3.4L)On transmission. (Схема №4)
Brake Fluid Level Warning Switch (2.7L)On brake fluid reservoir. (Схема №2)
Brake Fluid Level Warning Switch (3.4L)On brake fluid reservoir. (Схема №4)
Buckle SwitchOn driver's seat belt buckle.
Clutch Start Cancel SwitchUnder left side of dash.
Clutch Start SwitchUnder left side of dash.
Cruise Control Clutch SwitchUnder left side of dash.
Detection Switch (Shift Differential Lock) (3.4L)On transmission/transfer case assembly. (Схема №4)
Detection Switch (Transfer Differential Lock) (3.4L)On transmission/transfer case assembly. (Схема №4)
Detection Switch (Transfer H2 & H4F) (3.4L)On transmission/transfer case assembly. (Схема №4)
Detection Switch (Transfer L4 Position) (2.7L)On transmission/transfer case assembly. (Схема №2)
Detection Switch (Transfer L4 Position) (3.4L)On transmission/transfer case assembly. (Схема №4)
Detection Switch (Transfer Neutral Position) (2.7L)On transmission/transfer case assembly. (Схема №2)
Detection Switch (Transfer Neutral Position) (3.4L)On transmission/transfer case assembly. (Схема №4)
Detection Switch (Transfer 4WD Position) (2.7L)On transmission/transfer case assembly. (Схема №2)
Detection Switch (Transfer 4WD Position) (3.4L)On transmission/transfer case assembly. (Схема №4)
Moon Roof Control Relay & SwitchAbove headliner, on top front center of roof. (Схема №7)
Oil Pressure Switch (2.7L)On right front of engine. (Схема №1)
Oil Pressure Switch (3.4L)On left side of engine. (Схема №3)
Park/Neutral Position Switch (2.7L)On transmission. (Схема №1)
Park/Neutral Position Switch (3.4L)On transmission. (Схема №3)
Parking Brake SwitchUnder center console.
Power Steering Oil Pressure Switch (3.4L)On right front of engine. (Схема №3)
Rear Differential Lock Detection SwitchUnder vehicle, on differential.
Rear Heater Blower SwitchOn middle center of vehicle.
Stoplight SwitchUnder left side of dash.
2-4 Select SwitchUnder front of center console.

SWITCHES

MISCELLANEOUS

ComponentComponent Location
A/C Magnetic Clutch (2.7L)On right front of engine. (Схема №2)
A/C Magnetic Clutch (3.4L)On right front of engine. (Схема №4)
Blower ResistorBehind right side of dash.
Data Link Connector (DLC) No. 1 (2.7L)On left side of engine compartment. (Схема №2)
Data Link Connector (DLC) No. 1 (3.4L)On left side of engine compartment. (Схема №4)
Data Link Connector (DLC) No. 3Under center left side of dash, between console & steering column.
Daytime Running Light Resistor (2.7L)On left front of engine compartment. (Схема №2)
Daytime Running Light Resistor (3.4L)On left front of engine compartment. (Схема №4)
Diode (Back Window)Behind right side of dash, on top.
Diode (Daytime Running Light No. 1)Behind right side of dash, on top.
Diode (Daytime Running Light No. 2)Behind right side of dash, on top.
Diode (Door Courtesy)Behind center of dash, on top.
Diode (Idle Up)Behind center of dash, on top.
Diode (Power Window)Behind center of dash, on top.
Ignition Coil & Ignitor No. 1 (2.7L)On right front of engine. (Схема №1)
Ignition Coil & Ignitor No. 2 (2.7L)On right front of engine. (Схема №1)
Ignition Coil No. 1 (3.4L)On top right side of engine. (Схема №3)
Ignition Coil No. 2 (3.4L)On top right side of engine. (Схема №3)
Ignition Coil No. 3 (3.4L)On top right side of engine. (Схема №3)
Ignitor (3.4L)On right side of engine compartment. (Схема №3)
Junction Connectors No. 1 & 2On left inner fender panel, front of strut tower.
Junction Connectors No. 3 & 4Behind left side of dash, on top.
Junction Connectors No. 5Behind left side of dash, behind combination meter.
Junction Connector No. 6Behind left side of dash, at center J/B.
Junction Connectors No. 7, 8 & 9Behind right side of dash, on top.
Junction Connectors No. 10 & 11At right kick panel.
Junction Connectors No. 12, 13 & 14In front of left rear wheel well.
Noise Filter (2.7L)On right side of engine compartment. (Схема №1)
Noise Filter (3.4L)On right side of engine compartment. (Схема №3)
Rear Heater Blower ResistorOn rear heater unit.

MISCELLANEOUS

CONNECTORS

ComponentComponent Location
BN1 (5 Pin)Under left side of rear seat cushion.
BN2 (11 Pin)Under left side of rear seat cushion.
BO1 (Gray, 8 Pin)At upper left side of rear axle housing.
BP1 (Black, 3 Pin)Under right front seat.
BR1 (Gray, 10 Pin)At left rear of roof.
BR2 (4 Pin)At left rear of roof.
BS1 (Gray, 10 Pin)At left side of tailgate.
BS2 (6 Pin)At left side of tailgate.
BW1 (11 Pin)At left "B" pillar.
BX1 (11 Pin)At right "B" pillar.
BU1 (3 Pin)Under right front seat.
BY1 (3 Pin)Under left front seat.
EA1 (2.7L) (Gray, 4 Pin)Near engine room R/B. (Схема №8)
EA1 (3.4L) (Gray, 4 Pin)Near engine room R/B. (Схема №9)
EB1 (3.4L) (Gray, 3 Pin)At front of right cylinder head cover. (Схема №9)
EC1 (3.4L) (Gray, 2 Pin)At front of right cylinder head cover. (Схема №9)
ED1 (2.7L) (Gray, 2 Pin)Near starter. (Схема №8)
ED1 (3.4L) (Gray, 2 Pin)Near front differential. (Схема №9)
IE1 (Black, 11 Pin)At left kick panel.
IE2 (22 Pin)At left kick panel.
IF1 (18 Pin)At left kick panel.
IF2 (Blue, 12 Pin)At left kick panel.
IG1 (Gray, 26 Pin)At left kick panel.
IG2 (Yellow, 2 Pin)At left kick panel.
IG3 (4 Pin)At left kick panel.
IH1 (2 Pin)At left dash reinforcement.
II1 (Gray, 10 Pin)On glove box.
II2 (7 Pin)On glove box.
II3 (26 Pin)On glove box.
IJ1 (8 Pin)Near A/C unit.
IK1 (18 Pin)At right kick panel.
IL1 (17 Pin)At right kick panel.

CONNECTORS

GROUNDS

ComponentComponent Location
BHAt left inner quarterpanel. (Схема №7)
BJAt right side of tailgate. (Схема №7)
EA (2.7L)At right front fender. (Схема №8)
EA (3.4L)At right front fender. (Схема №9)
EB (2.7L)At left front fender. (Схема №8)
EB (3.4L)At left front fender. (Схема №9)
EC (2.7L)On intake manifold. (Схема №8)
EC (3.4L)On left intake manifold. (Схема №9)
EI (2.7L)At right front of engine. (Схема №8)
IDAt left kick panel. (Схема №6)
IEAt left side of firewall. (Схема №6)
IFAt right side of firewall. (Схема №6)
IGAt right kick panel. (Схема №6)

GROUNDS