Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other Toyota Sienna I

BUZZERS, RELAYS & TIMERS

ComponentComponent Location
ACC Main RelayOn driver side J/B No. 1. (Схема №4)
A/F Heater Relay (California)Behind right side of dash at ECU. (Схема №4)
Back-Up Light RelayNear driver side J/B No. 1. (Схема №4)
CIR OPN RelayOn engine room R/B No. 1.
Daytime Running Light Relay (Main) (W/ DRL)Behind dash, right of steering column. (Схема №4)
Defogger RelayOn driver side J/B No. 1.
DIM Relay (W/ DRL)On engine room R/B No. 2.
DRL No. 4 Relay (W/ DRL)On engine room R/B No. 2.
EFI RelayOn engine room J/B No. 2.
FAN No. 1 Relay (W/ Towing Package)On engine room R/B No. 1.
FAN No. 1 Relay (W/O Towing Package)On engine room J/B No. 2.
FAN No. 2 RelayOn engine room R/B No. 1.
FAN No. 3 RelayOn engine room R/B No. 1.
Front Heater RelayOn passenger side R/B No. 4.
HEAD RelayOn engine room J/B No. 2.
HORN RelayOn engine room J/B No. 2.
Integration RelayOn driver side J/B No. 1. (Схема №4)
MAIN No. 1 RelayOn engine room J/B No. 2.
MAIN No. 2 RelayOn engine room R/B No. 1.
Moon Roof Control Switch & Relay (5 Door)On front center of windshield header. (Схема №6)
Power RelayOn driver side J/B No. 1.
Rear Heater RelayOn driver side R/B No. 5.
Rear HI Relay (4 Door)On left side middle of vehicle.
Rear HI Relay (5 Door)On right rear of vehicle.
Rear LO Relay (5 Door)On passenger side R/B No. 3.
Rear M1 Relay (5 Door)On passenger side R/B No. 3.
Rear M2 Relay (5 Door)On passenger side R/B No. 3.
Rear RelayOn passenger side R/B No. 3.
Rear Wiper Relay (4 Door)On left rear quarterpanel, above wheelwell. (Схема №5)
Rear Wiper Relay (5 Door)On left rear quarterpanel, above wheelwell. (Схема №6)
Short PinOn engine room J/B No. 2.
ST RelayOn engine room J/B No. 2.
Taillight RelayOn driver side J/B No. 1.
Turn Signal FlasherBehind left side of dash.

BUZZERS, RELAYS & TIMERS

CIRCUIT PROTECTION DEVICES

ComponentComponent Location
Driver Side J/B No. 1Behind dash, left of steering column. (Схема №4)
Driver Side R/B No. 5Behind dash, left of steering column. (Схема №4)
Engine Room J/B No. 2On left side of engine compartment. (Схема №3)
Engine Room R/B No. 1On left side of engine compartment. (Схема №3)
Engine Room R/B No. 2 (W/ DRL)On left side of engine compartment, near battery. (Схема №3)
Fusible Link BlockOn left side of engine compartment, inside engine room J/B No. 2. (Схема №3)
Fusible Link Block (W/O DRL)On left side of engine compartment, near battery. (Схема №3)
J/B No. 3Behind instrument cluster. (Схема №4)
Passenger Side R/B No. 3 (5 Door)On right rear corner of vehicle. (Схема №6)
Passenger Side R/B No. 4At right kick panel. (Схема №4)

CIRCUIT PROTECTION DEVICES

CONTROL UNITS

ComponentComponent Location
ABS Actuator & ECUOn left rear of engine compartment. (Схема №3)
A/C AmplifierBehind right side of dash, above kick panel. (Схема №4)
Center Air Bag Sensor AssemblyBelow center of dash. (Схема №4)
Cruise Control ECUBehind left side of dash. (Схема №4)
Engine Control ModuleBehind right side of dash. (Схема №4)
Slide Door ECUOn right rear corner of vehicle. (Схема №6)
Stereo Component AmplifierBehind center of dash. (Схема №4)
Theft Deterrent ECUBelow center of dash. (Схема №4)
Transponder Key AmplifierBehind left side of dash. (Схема №4)
Wireless Door Lock ECUBehind center of dash. (Схема №4)

CONTROL UNITS

MOTORS

ComponentComponent Location
ABS Actuator & ECUOn left rear of engine compartment. (Схема №3)
A/C Condenser Fan MotorOn right front of engine compartment. (Схема №2)
Blower MotorBehind right side of dash.
Blower Motor (Rear A/C) (4 Door)On rear A/C unit.
Blower Motor (Rear Cooling) (5 Door)On rear cooling unit.
Blower Motor (Rear Heater) (5 Door)On rear heater unit.
Cruise Control ActuatorOn left side of engine compartment. (Схема №2)
Front Washer MotorOn right front corner of engine compartment, in washer fluid reservoir. (Схема №2)
Front Wiper MotorOn left side of firewall. (Схема №2)
Fuel Pump & SenderIn fuel tank.
Moon Roof Motor & Limit Switch (5 Door)On center underside front of roof.
Radiator Fan MotorOn left front of engine compartment. (Схема №1)
Rear Washer MotorOn washer fluid reservoir. (Схема №1)
Rear Wiper MotorOn middle of back door.
Servo Motor (Rear Cooling) (5 Door)On rear cooling unit.
Servo Motor (Rear Heater) (5 Door)On rear heater unit.

MOTORS

SENDING UNITS & SENSORS

ComponentComponent Location
ABS Speed Sensor (Front Left)Mounted on hub assembly of left front wheel. (Схема №2)
ABS Speed Sensor (Front Right)Mounted on hub assembly of right front wheel. (Схема №2)
ABS Speed Sensor (Left Rear)Mounted on hub assembly of left rear wheel.
ABS Speed Sensor (Right Rear)Mounted on hub assembly of right rear wheel.
A/C Magnetic Clutch & Lock SensorOn left front of engine. (Схема №2)
A/C ThermistorBehind lower right side of dash.
A/T Fluid Temperature SensorOn left side of transmission. (Схема №2)
Automatic Light Control SensorOn left, top side of dash.
Camshaft Position SensorOn left rear of engine. (Схема №2)
Center Air Bag Sensor AssemblyBelow center of dash. (Схема №4)
Crankshaft Position SensorOn front of engine. (Схема №2)
Engine Coolant Temperature SensorOn right front side of engine. (Схема №2)
Front Air Bag Sensor (Left)Behind left headlight. (Схема №2)
Front Air Bag Sensor (Right)Behind right headlight. (Схема №2)
Fuel Pump & SenderIn fuel tank.
Heated Oxygen Sensor (Bank 1 Sensor 1)On right exhaust manifold. (Схема №2)
Heated Oxygen Sensor (Bank 1 Sensor 2)Underside of vehicle, on exhaust pipe.
Heated Oxygen Sensor (Bank 2 Sensor 1)On left exhaust manifold. (Схема №2)
Knock Sensor No. 1On top of engine. (Схема №1)
Knock Sensor No. 2On top of engine. (Схема №1)
Mass Airflow MeterOn left side of engine compartment, part of air intake assembly. (Схема №1)
Throttle Position SensorOn throttle body assembly. (Схема №1)
Vapor Pressure SensorOn left side of firewall. (Схема №1)
Water Temperature SenderOn right front of engine. (Схема №1)

SENDING UNITS & SENSORS

SOLENOIDS & SOLENOID VALVES

ComponentComponent Location
Electronically Controlled Transmission SolenoidOn left side of transaxle. (Схема №2)
Idle Air Control ValveOn throttle body assembly. (Схема №1)
VSV (EVAP)On top of engine. (Схема №1)
VSV (Intake Air Control)On top center of engine. (Схема №1)
VSV (Vapor Pressure Sensor)On left rear of engine compartment. (Схема №1)

SOLENOIDS & SOLENOID VALVES

SWITCHES

ComponentComponent Location
A/C Triple Pressure Switch (Dual & Single)On right front of engine compartment. (Схема №2)
A/T Indicator Light SwitchOn transaxle. (Схема №1)
Back-Up Light SwitchOn transaxle. (Схема №1)
Brake Fluid Level Warning SwitchOn brake fluid reservoir. (Схема №2)
Engine Hood Courtesy SwitchOn front of engine compartment. (Схема №2)
Moon Roof Control Switch & Relay (5 Door)On front center of windshield header. (Схема №6)
Moon Roof Motor & Limit Switch (5 Door)On center underside front of roof.
Oil Pressure SwitchOn left front of engine block. (Схема №1)
Parking Brake SwitchOn parking brake lever.
Park/Neutral Position SwitchOn transaxle. (Схема №1)
Power Steering Oil Pressure SwitchOn right front of engine. (Схема №1)
Retractor SwitchAt base of left "B" pillar.
Stoplight SwitchOn bracket, above brake pedal.
Tire Pressure Warning Standardization SwitchOn left side of dash.
Washer Level Warning SwitchIn washer fluid reservoir. (Схема №1)
Water Temperature Switch No. 1On rear of engine. (Схема №1)
Water Temperature Switch No. 2On left rear of engine. (Схема №1)

SWITCHES

MISCELLANEOUS

ComponentComponent Location
Blower ResistorBehind right side of dash, on blower housing.
Blower Resistor (Rear A/C) (4 Door)On rear A/C unit.
Blower Resistor (Rear Cooling) (5 Door)On rear cooling unit.
Blower Resistor (Rear Heater) (5 Door)On rear heater unit.
Data Link Connector (DLC) No. 1On right rear of engine compartment. (Схема №2)
Data Link Connector (DLC) No. 3Below dash, right of steering column.
Diode (Courtesy No. 1)Behind left side of dash, near kick panel.
Diode (Courtesy No. 2)On left rear of vehicle, near left rear wheelwell.
Diode (Courtesy No. 3)Behind center of dash, taped to harness.
Diode (Daytime Running Light No. 1)Behind center of dash, taped to harness.
Diode (Daytime Running Light No. 2)Behind center of dash, taped to harness.
Diode (Dome No. 1)Behind left side of dash, taped to harness.
Diode (Dome No. 2)Behind instrument cluster.
Diode (Dome No. 3)Behind center of dash, taped to harness.
Diode (Park/Neutral Position Switch)Behind center of dash, taped to harness.
Ignition Coil No. 1On top center of engine. (Схема №1)
Ignition Coil No. 2On top front of engine. (Схема №1)
Ignition Coil No. 3On top rear of engine. (Схема №1)
IgnitorOn right side middle of firewall. (Схема №1)
Junction Connector No. 1On left front of engine compartment, near left headlight. (Схема №1)
Junction Connectors No. 2, 3 & 4Behind left side, top of dash.
Junction Connectors No. 5, 6, 7, 8, 9 & 10Behind top center of dash.
Junction Connectors No. 11, 15, 16, 17 & 18Behind upper right side of dash.
Junction Connectors No. 12, 13 & 14Behind right side of dash.
Junction Connectors No. 20 & 21Behind left rear wheelwell.
Junction Connector No. 22On right rear corner of vehicle.
Noise FilterOn driver side J/B No. 1.
Noise Filter (Ignition)On center right side of firewall. (Схема №1)
Pretensioner (Left)At base of left "B" pillar.
Pretensioner (Right)At base of right "B" pillar.
Short Pin (W/ Towing Package)On engine room J/B No. 2.
Slide Door Junction Connectors (Left) (5 Door)At base of left "B" pillar.
Slide Door Junction Connectors (Right)At base of right "B" pillar.
Theft Deterrent HornOn right rear of engine compartment. (Схема №1)

MISCELLANEOUS

CONNECTORS

ComponentComponent Location
BA1 (11 Pin)On left rear wheelwell.
BB1 (Gray, 10 Pin)At left rear quarterpanel.
BB2 (Black, 7 Pin)At left rear quarterpanel.
BC1 (1 Pin)At left side of tailgate.
BD1 (Black, 7 Pin)At left side of tailgate.
BD2 (Gray, 10 Pin)At left side of tailgate.
BE1 (10 Pin)On right rear wheelwell.
BF1 (Black, 1 Pin)At right side of tailgate.
BG1 (2 Pin)Under left front seat.
EA1 (Gray, 4 Pin)Near left cylinder head. (Схема №7)
EB1 (8 Pin)Inside lower cover of engine room J/B No. 2. (Схема №7)
IA1 (Gray, 12 Pin)At left kick panel.
IA2 (7 Pin)At left kick panel.
IB1 (Black, 5 Pin)At left kick panel.
IC1 (Blue, 13 Pin)At left side of firewall.
IC2 (20 Pin)At left side of firewall.
ID1 (Blue, 14 Pin)At left side of dash.
IE1 (Brown, 3 Pin)At left side of dash.
IF1 (Black, 8 Pin)Near ignition switch.
IG1 (17 Pin)Behind instrument cluster.
IG2 (22 Pin)Behind instrument cluster.
IH1 (Gray, 13 Pin)At front side of blower motor.
IH2 (22 Pin)At front side of blower motor.
II1 (8 Pin)At right kick panel.
II2 (Gray, 20 Pin)At right kick panel.
II3 (Blue, 8 Pin)At right kick panel.
IJ1 (7 Pin)At right kick panel.
IJ2 (Gray, 12 Pin)At right kick panel.
IK1 (Yellow, 2 Pin)At right side of firewall.
IK2 (Blue, 10 Pin)At right side of firewall.
IK3 (22 Pin)At right side of firewall.
IK4 (1 Pin)At right side of firewall.

CONNECTORS

GROUNDS

ComponentComponent Location
BK (4-Door)Under left "B" pillar. (Схема №5)
BK (5-Door)Under left "B" pillar. (Схема №6)
BL (5-Door)At left side of roof side panel. (Схема №6)
BM (4-Door)At left rear quarterpanel. (Схема №5)
BM (5-Door)At left rear quarterpanel. (Схема №6)
BN (4-Door)At right side of tailgate. (Схема №5)
BN (5-Door)At right side of tailgate. (Схема №6)
BO (4-Door)At right rear quarterpanel. (Схема №5)
BO (5-Door)At right rear quarterpanel. (Схема №6)
EAAt front of right inner fender panel. (Схема №7)
EBAt right side of intake manifold. (Схема №7)
ECAt rear of intake manifold. (Схема №7)
EDNear left strut tower. (Схема №7)
EEAt front of left inner fender panel. (Схема №7)
IFAt left kick panel. (Схема №4)
IGAt left side of firewall. (Схема №4)
IHAt right dash brace. (Схема №4)
IIAt right kick panel. (Схема №4)
IJAt right side of firewall. (Схема №4)

GROUNDS