Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other Toyota Tundra I

BUZZERS, RELAYS & TIMERS

ComponentComponent Location
Back-Up Light Relay (A/T)Behind left side of dash, below driver side J/B. (Схема №5)
C/OPN RelayOn engine room R/B.
Daytime Running Light Relay (Main)Behind lower center of dash, on transmission tunnel. (Схема №6)
DIMMER RelayOn engine room R/B.
DRL RelayOn engine room R/B.
EFI RelayOn engine room R/B.
FOG RelayOn engine room R/B.
FUEL PUMP Relay (4.7L)On engine room R/B.
HEAD RelayOn engine room R/B.
HEATER RelayOn engine room R/B.
Integration RelayOn driver side J/B. (Схема №6)
Power RelayOn driver side J/B. (Схема №6)
PWR OUTLET RelayOn engine room R/B.
STARTER RelayOn engine room R/B.
Transmission Control Relay (3.4L)Behind right side of dash, near kick panel. (Схема №6)
Turn Signal FlasherBehind left side of dash, below driver side J/B. (Схема №6)

BUZZERS, RELAYS & TIMERS LOCATION

CIRCUIT PROTECTION DEVICES

ComponentComponent Location
Driver Side J/BBehind lower left side of dash. (Схема №6)
Engine Room R/BOn left side of engine compartment.

CIRCUIT PROTECTION DEVICES LOCATION

CONTROL UNITS

ComponentComponent Location
ABS Actuator W/ ECU (3.4L)In right rear corner of engine compartment. (Схема №1)
ABS Actuator W/ ECU (4.7L)In right rear corner of engine compartment. (Схема №3)
Center Air Bag Sensor AssemblyBehind lower center of dash, on transmission tunnel. (Схема №6)
Cruise Control ECU (3.4L)Behind upper right center of dash. (Схема №6)
Engine Control Module (ECM)Behind right side of dash, near "A" pillar. (Схема №6)
4WD Control ECU (4.7L)Behind lower right side of dash. (Схема №6)

CONTROL UNITS LOCATION

MOTORS

ComponentComponent Location
ABS Actuator W/ ECU (3.4L)In right rear corner of engine compartment. (Схема №1)
ABS Actuator W/ ECU (4.7L)In right rear corner of engine compartment. (Схема №3)
ADD Actuator (3.4L)On left rear of engine compartment. (Схема №1)
ADD Actuator (4.7L)On left rear of engine compartment. (Схема №3)
Air Inlet Control Servo MotorUnder right side of dash, on HVAC housing. (Схема №5)
Blower MotorUnder right side of dash, on HVAC housing. (Схема №5)
Cruise Control Actuator (3.4L)On right side of engine compartment. (Схема №1)
Fuel Pump & SenderIn fuel tank.
Throttle Control Motor (4.7L)On left front of engine. (Схема №4)
Transfer Shift Actuator (4.7L)On transfer case. (Схема №4)
Washer Motor (3.4L)On right side of engine compartment, behind headlight. (Схема №2)
Washer Motor (4.7L)On right side of engine compartment, behind headlight. (Схема №4)
Wiper Motor (3.4L)In right rear corner of engine compartment. (Схема №2)
Wiper Motor (4.7L)In right rear corner of engine compartment. (Схема №4)

MOTORS LOCATION

SENDING UNITS & SENSORS

ComponentComponent Location
ABS Speed Sensors (Front)Mounted on respective wheel hub.
ABS Speed Sensor (Rear)On left side of rear axle.
ACCEL Position Sensor (4.7L)On right front of engine. (Схема №3)
A/C Magnetic Clutch & Lock Sensor (4.7L)On A/C compressor, on left side of engine. (Схема №3)
A/C ThermistorUnder right side of dash, in HVAC housing. (Схема №5)
Air/Fuel Ratio Sensor (Bank 1 Sensor 1) (A/T) (3.4L)On exhaust system. (Схема №1)
Air/Fuel Ratio Sensor (Bank 1 Sensor 1) (M/T) (3.4L)On exhaust system. (Схема №1)
A/T Oil Temperature Sensor (3.4L)On transmission. (Схема №1)
A/T Oil Temperature Sensor (4.7L)On transmission. (Схема №3)
Camshaft Position Sensor (3.4L)On right front of engine. (Схема №1)
Camshaft Position Sensor (4.7L)On left front of engine. (Схема №3)
Center Air Bag Sensor AssemblyBehind lower center of dash, on transmission tunnel. (Схема №6)
Crankshaft Position Sensor (3.4L)On left front of engine. (Схема №1)
Crankshaft Position Sensor (4.7L)On left front of engine. (Схема №3)
Engine Coolant Temperature Sensor (3.4L)On top center of engine. (Схема №1)
Engine Coolant Temperature Sensor (4.7L)On right front of engine. (Схема №3)
Front Air Bag Sensor (Left) (3.4L)On front left side of engine compartment, behind headlight. (Схема №1)
Front Air Bag Sensor (Left) (4.7L)On front left side of engine compartment, behind headlight. (Схема №3)
Front Air Bag Sensor (Right) (3.4L)On front right side of engine compartment, behind headlight. (Схема №1)
Front Air Bag Sensor (Right) (4.7L)On front right side of engine compartment, behind headlight. (Схема №3)
Fuel Pump & SenderIn fuel tank.
Heated Oxygen Sensor (Bank 1 Sensor 2) (3.4L)On exhaust system.
Heated Oxygen Sensor (Bank 1 Sensor 1) (4.7L)On exhaust system. (Схема №3)
Heated Oxygen Sensor (Bank 1 Sensor 2) (4.7L)On exhaust system. (Схема №3)
Heated Oxygen Sensor (Bank 2 Sensor 1) (4.7L)On exhaust system. (Схема №3)
Heated Oxygen Sensor (Bank 2 Sensor 2) (4.7L)On exhaust system. (Схема №3)
Knock Sensor 1 (3.4L)On right side of engine, under intake plenum. (Схема №2)
Knock Sensor 1 (4.7L)On left side of engine, under intake plenum. (Схема №4)
Knock Sensor 2 (3.4L)On left side of engine, under intake plenum. (Схема №2)
Knock Sensor 2 (4.7L)On right side of engine, under intake plenum. (Схема №4)
Mass Airflow Meter (3.4L)On right side of engine compartment, on air cleaner housing. (Схема №2)
Mass Airflow Meter (4.7L)On right side of engine compartment, on air cleaner housing. (Схема №4)
O/D Direct Clutch Speed Sensor (4.7L)On left side of transmission. (Схема №4)
Throttle Position Sensor (3.4L)On throttle body assembly. (Схема №2)
Throttle Position Sensor (4.7L)On throttle body assembly. (Схема №4)
Vapor Pressure Sensor (3.4L)In left rear corner of engine compartment, near brake master cylinder. (Схема №2)
Vapor Pressure Sensor (4.7L)In left rear corner of engine compartment, near brake master cylinder. (Схема №4)
Vehicle Speed Sensor (Combination Meter) (3.4L)On transmission. (Схема №2)
Vehicle Speed Sensor (Combination Meter) (4.7L)On transmission. (Схема №4)
Vehicle Speed Sensor (Electronically Controlled Transmission) (3.4L)On transmission. (Схема №2)
Vehicle Speed Sensor (Electronically Controlled Transmission) (4.7L)On transmission. (Схема №4)
Washer Level Sensor (3.4L)In right front corner of engine compartment, behind headlight. (Схема №2)
Washer Level Sensor (4.7L)In right front corner of engine compartment, behind headlight. (Схема №4)
Water Temperature Sender (3.4L)On rear of engine. (Схема №2)
Water Temperature Sender (4.7L)On right front of engine. (Схема №4)

SENDING UNITS & SENSORS LOCATION

SOLENOIDS & SOLENOID VALVES

ComponentComponent Location
A/C Magnetic Clutch (3.4L)On A/C compressor, on right front of engine. (Схема №1)
A/C Magnetic Clutch & Lock Sensor (4.7L)On A/C compressor, on left front of engine. (Схема №3)
Electronically Controlled Transmission Solenoid (3.4L)Inside transmission. (Схема №1)
Electronically Controlled Transmission Solenoid (4.7L)Inside transmission. (Схема №3)
Idle Air Control Valve (3.4L)On right side of engine. (Схема №2)
VSV (EVAP) (3.4L)On rear of engine. (Схема №2)
VSV (EVAP) (4.7L)On left side of engine. (Схема №4)
VSV (Vapor Pressure Sensor) (3.4L)In left rear corner of engine compartment, near brake master cylinder. (Схема №2)
VSV (Vapor Pressure Sensor) (4.7L)In left rear corner of engine compartment, near brake master cylinder. (Схема №4)

SOLENOIDS & SOLENOID VALVES LOCATION

SWITCHES

ComponentComponent Location
A/C Dual Pressure Switch (3.4L)In right front corner of engine compartment, behind headlight. (Схема №1)
A/C Dual Pressure Switch (4.7L)In right front corner of engine compartment, behind headlight. (Схема №3)
Back-Up Light Switch (3.4L)On transmission. (Схема №1)
Brake Fluid Level Warning Switch (3.4L)On brake fluid reservoir. (Схема №1)
Brake Fluid Level Warning Switch (4.7L)On brake fluid reservoir. (Схема №3)
Buckle Switch (Left)Inside driver's seat belt buckle.
Buckle Switch (Right)Inside front passenger's seat belt buckle.
Oil Pressure Switch (3.4L)On left side of engine. (Схема №2)
Oil Pressure Switch (4.7L)On left side of engine. (Схема №4)
Parking Brake Switch (A/T)Inside upper right side of steering column. (Схема №5)
Parking Brake Switch (M/T)On base of park brake pedal bracket, near kick panel. (Схема №5)
Park/Neutral Position Switch (3.4L)On transmission. (Схема №2)
Park/Neutral Position Switch (4.7L)On transmission. (Схема №4)
Power Steering Oil Pressure Switch (3.4L)On right front of engine. (Схема №2)
Transfer L4 Position Detection Switch (3.4L)On transfer case. (Схема №1)
Transfer L4 Position Detection Switch (4.7L)On transfer case. (Схема №3)
Transfer Neutral Position Detection Switch (3.4L)On transfer case. (Схема №1)
Transfer 4WD Position Detection Switch (3.4L)On transfer case. (Схема №1)
Transfer 4WD Position Detection Switch (4.7L)On transfer case. (Схема №3)
Stoplight SwitchOn bracket, above brake pedal. (Схема №5)

SWITCHES LOCATION

MISCELLANEOUS

ComponentComponent Location
Blower ResistorBehind right side of dash, in HVAC housing. (Схема №5)
Data Link Connector (DLC) No. 3Under left side of dash, near center console. (Схема №5)
Daytime Running Light Resistor (3.4L)On left side of engine compartment, near battery. (Схема №1)
Daytime Running Light Resistor (4.7L)On left side of engine compartment, near battery. (Схема №3)
Diode (A/T)Behind upper left side of dash, near instrument cluster. (Схема №5)
Diode (Door Courtesy)Behind upper left side of dash, near instrument cluster. (Схема №5)
Diode (Idle Up)Behind upper right side of dash, near passenger air bag. (Схема №5)
Diode No. 1 (Daytime Running Light System)Behind upper left side of dash, near base of windshield. (Схема №5)
Diode No. 2 (Daytime Running Light System)Behind upper left side of dash, near instrument cluster. (Схема №5)
Diode (Power Window System)Behind upper center of dash. (Схема №5)
Diode (Step Light)Behind upper left side of dash, near base of windshield. (Схема №5)
Fuel Pump Resistor (4.7L)On left side of engine compartment, next to engine room J/B. (Схема №3)
Ignition Coil No. 1 (3.4L)On right front of engine. (Схема №2)
Ignition Coil No. 2 (3.4L)On right side of engine. (Схема №2)
Ignition Coil No. 3 (3.4L)On right rear of engine. (Схема №2)
Ignitor (3.4L)On right side of engine compartment, near air intake. (Схема №2)
Ignitor & Ignition Coils (8) (4.7L)On top of right and left cylinder heads.
Junction Connectors No. 1 & 2 (3.4L)On left side of engine compartment, next to battery. (Схема №2)
Junction Connectors No. 1 & 2 (4.7L)On left side of engine compartment, next to battery. (Схема №4)
Junction Connectors No. 3 & 4Behind left kick panel. (Схема №5)
Junction Connectors No. 5, 6, 7, 8 , 9 & 10Behind upper left side of dash, near instrument cluster. (Схема №5)
Junction Connectors No. 11 & 12Behind upper right side of dash, near passenger's air bag. (Схема №5)
Junction Connector No. 13Behind right kick panel. (Схема №5)
Junction Connectors No. 14, 15 & 16Under driver's seat.
Noise Filter (3.4L)On right side of engine compartment, on fenderwell. (Схема №2)
Noise Filter (4.7L) (2)On top rear of engine. (Схема №4)
Option Connector (3.4L)On left front of engine compartment. (Схема №2)
Option Connector (4.7L)On left front of engine compartment. (Схема №4)
Pretensioner (Left)Near bottom of left "B" pillar.
Pretensioner (Right)Near bottom of right "B" pillar.
Short PinBehind right kick panel.
Trailer ConverterBelow left taillight.

MISCELLANEOUS LOCATION

CONNECTORS

ComponentComponent Location
BA1 (White, 2 Pin)Inside of left front door.
BB1 (White, 12 Pin)Under left front seat.
BC1 (White, 2 Pin)Inside of right front door.
BD1 (White, 4 Pin)Under right front seat.
BE1 (Black, 4 Pin)At center of left rocker panel.
BF1 (Black, 4 Pin)At center of right rocker panel.
BG1 (White, 4 Pin)At left quarterpanel.
BH1 (White, 4 Pin)At right quarterpanel.
BI1 (White, 4 Pin)Under left front seat.
BJ1 (White, 2 Pin)Under right rear of left front seat.
EA1 (3.4L) (Gray, 8 Pin)At right front of engine compartment. (Схема №7)
EA1 (4.7L) (Gray, 8 Pin)At right front of engine compartment. (Схема №8)
EB1 (3.4L) (Black, 4 Pin)Under engine room R/B. (Схема №7)
EB1 (4.7L) (Black, 4 Pin)Under engine room R/B. (Схема №8)
EC1 (4.7L) (4WD) (Dark Gray, 6 Pin)Near starter motor.
EC2 (4.7L) (2WD) (Gray, 3 Pin)Near starter motor.
EC3 (4.7L) (Gray, 4 Pin)Near starter motor. (Схема №8)
ED1 (4.7L) (Gray, 6 Pin)Near left front of transmission. (Схема №8)
EE1 (3.4L) (Dark Gray, 3 Pin)At right front of engine. (Схема №7)
EF1 (3.4L) (Gray, 2 Pin)At right front of engine. (Схема №7)
EG1 (3.4L) (Gray, 6 Pin)On left side of engine compartment. (Схема №7)
IA1 (Yellow, 2 Pin)Above left kick panel. (Схема №9)
IA2 (4.7L) (White, 6 Pin)Above left kick panel.
IA3 (3.4L) (White, 3 Pin)Above left kick panel.
IA4 (White, 26 Pin)Above left kick panel.
IB1 (Gray, 7 Pin)Behind left kick panel.
IB2 (White, 4 Pin)Behind left kick panel.
IB3 (White, 12 Pin)Behind left kick panel. (Схема №9)
IC1 (White, 2 Pin)Behind upper left side of dash. (Схема №9)
ID1 (White, 2 Pin)Below center of dash.
ID2 (White, 6 Pin)Below center of dash.
IE1 (Gray, 26 Pin)Behind upper right side of dash.
IE2 (A/T) (White, 26 Pin)Behind upper right side of dash.
IE3 (M/T) (White, 10 Pin)Behind upper right side of dash.
IF1 (White, 4 Pin)Behind right kick panel.
IF2 (Gray, 7 Pin)Behind right kick panel.
IF3 (White, 12 Pin)Behind right kick panel. (Схема №9)

CONNECTORS LOCATION

GROUNDS

ComponentComponent Location
BJAt base of left rear door.
BKAt base of right rear door.
BLBelow left rear of left front seat.
EA (3.4L)On left front fender. (Схема №7)
EA (4.7L)On left front fender. (Схема №8)
EB (4.7L)On right rear of engine. (Схема №8)
EC (4.7L)On left side of firewall.
ED (3.4L)On left side of engine. (Схема №7)
IEBehind left kick panel. (Схема №9)
IFBehind left kick panel. (Схема №9)
IGBelow center of dash. (Схема №9)
IHBehind right kick panel. (Схема №9)
IIBehind right kick panel. (Схема №9)

GROUNDS LOCATION