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Toyota 1993 MR2 User Manual

Toyota 1993 MR2
189 pages
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FOREWORD
This wiring diagram has been prepared to provide information
on the electrical system of the 1993 TOYOTA MR2.
Applicable models: SW20, 21 Series
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Manual Name Pub. No.
1993 MR2 Repair Manual
Volume 1
Volume 2
1993 MR2 New Car Features
Supplement
RM285U1
RM285U2
NCF083U
All information in this manual is based on the latest product
information at the time of publication. However, specifications
and procedures are subject to change without notice.
TOYOTA MOTOR CORPORATION
Servicing vehicles with an SRS AIRBAG (referred to as the airbag in the
remainder of this manual) installed.
When handling airbag components (removal, installation or inspection, etc.),
always follow the directions given in the repair manuals listed above to
prevent the occurrence of accidents and airbag malfunction.
NOTICE

Table of Contents

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Toyota 1993 MR2 Specifications

General IconGeneral
BrandToyota
Model1993 MR2
CategoryAutomobile
LanguageEnglish

Summary

INTRODUCTION AND MANUAL NAVIGATION

How to Use This Manual

Guides on navigating and utilizing the manual's structure and content.

Troubleshooting and System Circuits

Covers troubleshooting procedures and detailed system circuit explanations.

HOW TO USE THIS MANUAL

Understanding Circuit Operation

Explains how to interpret circuit diagrams and system outlines for troubleshooting.

ELECTRICAL TROUBLESHOOTING TECHNIQUES

Voltage and Resistance Testing

Outlines methods for performing voltage and resistance checks on circuits.

Finding Short Circuits

Step-by-step guide for identifying and pinpointing short circuits in the wiring.

Terminal Replacement Guide

Detailed instructions for replacing electrical terminals within connectors.

RELAY LOCATIONS

Relay Positions in Vehicle Body

Illustrates relay locations within the vehicle's body panels.

Relays in Instrument Panel Area

Identifies the locations of relays within the instrument panel and dashboard.

Relays in Engine Compartment

Shows the placement of relays situated in the engine compartment.

POWER SOURCE AND CURRENT FLOW

Current Flow Chart Overview

Illustrates the path of electrical current from the battery to various sources.

STARTING AND IGNITION SYSTEM

CHARGING SYSTEM

ENGINE CONTROL SYSTEM (3S-GTE)

ENGINE CONTROL SYSTEM (5S-FE)

System Outline and Functionality

Describes the purpose and operation of the 5S-FE engine control system.

HEADLIGHT SYSTEM (USA Specifications)

HEADLIGHT SYSTEM (Canadian Specifications)

TURN SIGNAL AND HAZARD LIGHT SYSTEM

POWER WINDOW SYSTEM

Power Window Operation Details

Provides a comprehensive overview of how the power window system operates.

DOOR LOCK SYSTEM

Door Lock System Operation Logic

Explains the functional sequence of the vehicle's door lock system.

WIPER AND WASHER SYSTEM

SRS (AIRBAG) SYSTEM SAFETY

SRS Airbag System Precautions

Crucial safety guidelines for handling and servicing the SRS airbag system.

EHPS (ELECTRO HYDRAULIC POWER STEERING) SYSTEM

EHPS System Operation and Function

Details the electro-hydraulic power steering system's operation and purpose.

THEFT DETERRENT SYSTEM

SHIFT LOCK SYSTEM

ABS (ANTI-LOCK BRAKE SYSTEM)

ABS System Operation and Input Signals

Details the ABS system's function and the signals it uses.

CRUISE CONTROL SYSTEM

Cruise Control Operation Modes

Describes the various modes of operation for the cruise control system.

RADIATOR FAN AND AIR CONDITIONER SYSTEM

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