2006 Avalon Electrical Wiring Diagram
Introduction
This manual provides detailed electrical wiring diagrams for the 2006 Toyota Avalon.
How to Use This Manual
The ground points circuit diagram illustrates connections from major components to their respective ground points. This is useful for troubleshooting faulty ground points by examining system circuits that share a common ground.
Troubleshooting
Refer to the troubleshooting section for guidance on diagnosing electrical issues.
Abbreviations
A list of abbreviations used in the diagrams is provided.
Glossary of Terms and Symbols
Definitions for terms and symbols used in the diagrams are included.
Relay Locations
Information on the location of various relays is available.
Electrical Wiring Routing
Details on the routing of electrical wiring throughout the vehicle are presented.
System Circuits
Comprehensive diagrams of the vehicle's electrical system circuits are provided.
Ground Point
Diagrams illustrating ground points and their connections are included. For example, the ground points circuit diagram shows connections from parts like the Headlamp Leveling Motor (LH), Power Window Master SW, Cooling Fan Motor No.3, Headlamp Leveling Motor (RH), Pressure SW, Turn Signal Lamp (Front LH), Windshield Wiper Motor, Headlamp Leveling SW, Clearance Lamp (Front RH), Clearance Lamp (Front LH), Option Connector (Vacuum), Skid Control ECU with Actuator, Throttle Position SW, Engine ECU, Fog Lamp (Front LH), Fog Lamp (Front RH), Brake Fluid Level Warning SW, and Turn Signal Lamp (Front RH) to their respective ground points.
Power Source (Current Flow Chart)
Diagrams illustrating power sources and current flow are provided. This includes components such as the Generator, ABS/VSC NO. 1, ABS/VSC NO. 2, HEATER, RR DEF, S-HORN, RDI FAN, WASHER, ALT, ECU-B, DRL Relay, HEAD LH UPR, HEAD RH UPR, FL MAIN, RAD NO. 1, DOME, EFI NO. 1, EFI NO. 2, STOP NO. 1, A/F Relay, HORN Relay, and Battery.
Connector List
A comprehensive list of connectors used in the vehicle's electrical system is provided, detailing their types and locations. Examples include connectors for the Engine Room Main Wire, Engine Room J/B, Instrument Panel Wire, Driver Side J/B, Instrument Panel No.2 Wire, and Lower Finish Panel.
Part Number of Connectors
Information on the part numbers for various connectors is available.
Overall Electrical Wiring Diagram
A complete overview of the vehicle's electrical wiring is presented.
Position of Parts in Engine Compartment
A diagram shows the location of various parts within the engine compartment, identified by codes such as B1 through B44, C1, and R1, R2. These parts include sensors (Engine Oil Pressure SW, Heated Oxygen Sensor, Crankshaft Position Sensor, Engine Coolant Temp. Sensor, Mass Air Flow Meter, Speed Sensor, Knock Control Sensor), actuators (A/C Compressor, Generator, Starter, Fuel Injector, Throttle Body Assembly, VSV), and other components (Heated Oxygen Sensor, Noise Filter, Fuel Ratio Sensor, Ignition Coil, Power Steering Oil Pressure SW).
Front Fog Light
Details regarding the front fog light system, including parts location, relay blocks, junction blocks, wire harness connectors, and ground points, are provided.
Illumination
Wiring diagrams for illumination systems, including components like the Temp. Control SW Assembly, Seat Heater SW, and Navigation Controller, are shown.
Power Window
The power window system's wiring is detailed, showing connections for the Power Window SW (Front Passenger's Side), Power Window Regulator Motor (Front Passenger's Side), and associated junction connectors.
Smart Key System
Wiring diagrams related to the Smart Key system are included, showing connections for the Electrical Key Oscillator, Door Outside Handle, and Smart Key ECU.
Combination Meter
The wiring for the combination meter is presented, including its power supply circuit and connections to various sensors and modules.
ECT and A/T Indicator
Diagrams related to the Engine Coolant Temperature (ECT) and Automatic Transmission (A/T) indicators are provided, showing connections to the Engine Control Module and Throttle Body Assembly.
Sliding Roof
The electrical wiring for the sliding roof system is detailed, including the Sliding Roof ECU, Sliding Roof Motor, Sliding Roof Control SW, and Body ECU.
Multi Display without Navigation System
Information on parts location, relay blocks, junction blocks, wire harness connectors, and ground points for the multi-display system without navigation is provided.
Connector Diagrams
Visual representations of various connectors (P13, P14, P16, P17, Q1, R1, R2, S1, S2, T1, U1, V1, V2, W1, W2, X1, X2, Y1, Y2, Z1) with their pin configurations are included.
