Toyota COROLLA2004 User Manual

2003
All rights reserved. This book may not be
reproduced or copied, in whole or in part, without
the written permission of Toyota Motor
Corporation.
2004 COROLLA (EWD533U)
1
2004 COROLLA
ELECTRICAL WIRING DIAGRAM
Section Code Page
INTRODUCTION A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HOW TO USE THIS MANUAL B. . . . . . . . . . . . . . . . . . 3
TROUBLESHOOTING C. . . . . . . . . . . . . . . . . . . . . . . . . 12
ABBREVIATIONS D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
GLOSSARY OF TERMS AND SYMBOLS E. . . . . . . . 18
RELAY LOCATIONS F. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ELECTRICAL WIRING ROUTING G. . . . . . . . . . . . . . . 32
SYSTEM CIRCUITS H. . . . . . . . . . . . . . . . . . . . . . . . . . . 47
GROUND POINT I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
POWER SOURCE (Current Flow Chart) J. . . . . . . . . 198
CONNECTOR LIST K. . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
PART NUMBER OF CONNECTORS L. . . . . . . . . . . . . 210
OVERALL ELECTRICAL WIRING DIAGRAM M. . . . . 214

Toyota COROLLA2004 Specifications

General

Brand	Toyota
Model	COROLLA2004
Category	Automobile
Language	English

Summary

How to Use This Manual

System Outline and Operation

Explains the manual's structure, system overview, and operational principles.

Component and Code Explanations

Details on parts, relays, connectors, grounds, and splices used in diagrams.

Troubleshooting

Electrical Checks and Procedures

Covers voltage, continuity, resistance checks, and finding short circuits.

Abbreviations and Glossary

Abbreviation Definitions

Lists and defines abbreviations used throughout the manual.

Glossary of Terms and Symbols

Defines technical terms and explains schematic symbols.

Component Locations and Wiring Routing

Relay Locations

Visual guides to relay and fuse box locations in various vehicle areas.

Electrical Wiring Routing

Diagrams showing wire harness routing and component placement.

System Circuits

System Circuit Index

An index listing all system circuits and their corresponding page numbers.

Detailed System Schematics

Electrical diagrams for major vehicle systems like power, engine, lighting, and safety.

Ground Points and Power Source

Ground Point Diagrams

Diagrams illustrating the routing and location of all ground points.

Power Source (Current Flow Chart)

Charts showing power distribution from the battery to electrical sources.

Connector and Part Information

Connector List

Visual representations of all electrical connectors used in the vehicle.

Part Number of Connectors

A comprehensive list of connector codes and their corresponding part numbers.

Overall Electrical Wiring Diagram

Diagram Explanation and System Index

Explains diagram conventions and provides an index to all systems.