1991 Lexus ES250 (VZV21 Series) Electrical Wiring Diagram



1991 Lexus ES250 (VZV21 Series) Electrical Wiring Diagram PDF

1991 Lexus ES250 (VZV21 Series) Electrical Wiring Diagram. This Electrical Wiring Manual contains information necessary for inspection and servicing of electrical wiring of Lexus ES250 edited in the form of wiring harness configuration diagrams and function-separated circuit diagrams.

HOW TO USE THIS MANUAL

This manual provides information on the electrical circuits in on vehicles by dividing them into a circuit for each system.

The actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point. (All circuit diagrams are shown with the switches in the OFF position.)

When troubleshooting any problem, first understand the operation of the circuit where the problem was detected (see System Circuit section), the power source supplying power to that circuit (see Power Source section), and the ground points (see Ground Points section). See the System Outline to understand the circuit operation.

When the circuit operation is understood, begin troubleshooting of the problem circuit to isolate the cause. Use Relay Location and Electrical Wiring Routing sections to find each part, junction block and wiring harness connectors, wiring harness and wiring harness connectors, splice points, and ground points of each system circuit. Internal wiring for each junction block is also provided for better understanding of connection within a junction block.

Wiring related to each system is indicated in each system circuit by arrows (from , to ). When overall connections are required, see the Overall Electrical Wiring Diagram at the end of this manual.

CONTENTS

  • INTRODUCTION
  • HOW TO USE THIS MANUAL
  • TROUBLESHOOTING
  • ABBREVIATIONS
  • GLOSSARY OF TERMS AND SYMBOLS
  • RELAY LOCATIONS
  • ELECTRICAL WIRING ROUTING
  • GROUND POINT
  • POWER SOURCE (Current Flow Chart)
  • POWER SOURCE
  • STARTING AND IGNITION
  • CHARGING
  • ENGINE CONTROL
  • HEADLIGHT (FOR USA)
  • HEADLIGHT AND FOG LIGHT (FOR CANADA)
  • FOG LIGHT (FOR USA)
  • TAILLIGHT
  • STOP LIGHT
  • BACK–UP LIGHT
  • LIGHT AUTO TURN OFF
  • TURN SIGNAL AND HAZARD WARNING LIGHT
  • ILLUMINATION
  • INTERIOR LIGHT
  • WIPER AND WASHER
  • REMOTE CONTROL MIRROR
  • MOON ROOF
  • POWER WINDOW
  • POWER SEAT
  • SRS AIRBAG
  • CRUISE CONTROL
  • THEFT DETERRENT AND DOOR LOCK CONTROL
  • REAR WINDOW DEFOGGER AND MIRROR HEATER
  • PPS (PROGRESSIVE POWER STEERING)
  • SHIFT LOCK
  • CIGARETTE LIGHTER AND CLOCK
  • HORN
  • UNLOCK AND SEAT BELT WARNING
  • ECT AND A/T INDICATOR
  • ABS (ANTI–LOCK BRAKE SYSTEM)
  • AUTO ANTENNA
  • RADIO AND PLAYER (W/ CD PLAYER)
  • RADIO AND PLAYER (W/O CD PLAYER)
  • COMBINATION METER
  • RADIATOR FAN AND AIR CONDITIONER

Language: English
Format: PDF
Pages: 161
Size: 2.85 Mb
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