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FOREWORD
This wiring diagram manual has been prepared to provide
information on the electrical system of the 1994 TOYOTA
CAMRY.
Applicable models: SXV10 Series
MCV10 Series
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Pub. No.
Manual Name
1994 CAMRY Repair Manual
Volume 1
RM361U1
Volume 2 RM361U2
NCF099U
1994 Model New Car Features
All information in this manual is based on the latest product
inf
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INTRODUCTION This manual consists of the following 11 sections: No. Section Description INDEX Index of the contents of this manual. A A INTRODUCTION Brief explanation of each section. HOW TO USE B Instructions on how to use this manual. THIS MANUAL TROUBLE– C Describes the basic inspection procedures for electrical circuits. SHOOTING D ABBREVIATIONS Defines the abbreviations used in this manual. GLOSSARY OF E TERMS AND Defines the symbols and functions of major parts. SYMBOLS Shows position of t
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HOW TO USE THIS MANUAL This manual provides information on the electrical circuits installed 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 Circu
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HOW TO USE THIS MANUAL * The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION. 4
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: System Title : Indicates the wiring color. A J : Indicates a Relay Block. No shading is used and only Wire colors are indicated by an alphabetical code. B the Relay Block No. is shown to distinguish it from the B = Black L = Blue R = Red J/B. BR = Brown LG = Light Green V = Violet Example: Indicates Relay Block No. 1. G = Green O = Orange W = White : Indicates the connector to be connected to a part (the C numeral indicates the pin No.) GR = Gray P = Pink Y = Yellow Explanation of pin use. The
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HOW TO USE THIS MANUAL Q SYSTEM OUTLINE WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 3 OF THE POWER WINDOW MASTER SW, TERMINAL 2 OF THE POWER WINDOW CONTROL RELAY AND TERMINAL 8 OF THE POWER WINDOW SW THROUGH THE DOOR FUSE. 1. DRIVER’S WINDOW “MANUAL UP” OPERATION BY MASTER SW HOLDING MANUAL SW (DRIVER’S) ON “UP” POSITION LOCATED IN POWER WINDOW MASTER SW, THE CURRENT FLOWS TO TERMINAL 5 OF THE POWER WINDOW CONTROL RELAY THROUGH TERMINAL 3 OF THE MASTER SW TERMINAL 2 TO OPERAT
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Q : Explains the system outline. R : Indicates values or explains the function for reference during troubleshooting. : Indicates the reference page showing the position on the vehicle of the parts in the system circuit. S Example: Part “P4” (Power Window Master SW) is on page 21 of the manual. * The letter in the code is from the first letter of the part, and the number indicates its order in parts starting with that letter. Example: P 4 Part is 4th in order Power Window Master SW T : Indicates
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HOW TO USE THIS MANUAL The “Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers) transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully understood. POWER SOURCE (Current Flow Chart) The chart below shows the route by which current flows from the battery to
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The ground points circuit diagram shows the connections from all major parts to the respective ground points. When troubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identify the problem ground quickly. The relationship between ground points ( , , and shown below) can also be checked this way. GROUND POINT 9 * The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
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TROUBLESHOOTING VOLTAGE CHECK (a) Establish conditions in which voltage is present at the check point. Example: – Ignition SW on – Ignition SW and SW 1 on – Ignition SW, SW 1 and Relay on (SW 2 off) (b) Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal, and the positive lead to the connector or component terminal. This check can be done with a test light instead of a voltmeter. CONTINUITY AND RESISTANCE CHECK (a) Disconnect the battery terminal or w
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FINDING A SHORT CIRCUIT (a) Remove the blown fuse and disconnect all loads of the fuse. (b) Connect a test light in place of the fuse. (c) Establish conditions in which the test light comes on. Example: – Ignition SW on – Ignition SW and SW 1 on – Ignition SW, SW 1 and Relay on (Connect the Relay) and SW 2 off (or Disconnect SW 2) (d) Disconnect and reconnect the connectors while watching the test light. The short lies between the connector where the test light stays lit and the connector where
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TROUBLESHOOTING HOW TO REPLACE TERMINAL (with terminal retainer or secondary locking device) 1. PREPARE THE SPECIAL TOOL HINT: To remove the terminal from the connector, please construct and use the special tool or like object shown on the left. 2. DISCONNECT CONNECTOR 3. DISENGAGE THE SECONDARY LOCKING DEVICE OR TERMINAL RETAINER. (a) Locking device must be disengaged before the terminal locking clip can be released and the terminal removed from the connector. (b) Use a special tool or the term
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For Waterproof Type Connector HINT:Terminal retainer color is different according to connector body. Example: Terminal Retainer: Connector Body Black or White : Gray Black or White : Dark Gray Gray or White : Black “Case 1” Type where terminal retainer is pulled up to the temporary lock position (Pull Type). Insert the special tool into the terminal retainer access hole ( Mark) and pull the terminal retainer up to the temporary lock position. HINT:The needle insertion position varies according t
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TROUBLESHOOTING Push the terminal retainer down to the temporary lock position. (c) Release the locking lug from terminal and pull the terminal out from rear. 4. INSTALL TERMINAL TO CONNECTOR (a) Insert the terminal. HINT: 1. Make sure the terminal is positioned correctly. 2. Insert the terminal until the locking lug locks firmly. 3. Insert the terminal with terminal retainer in the temporary lock position. (b) Push the secondary locking device or terminal retainer in to the full lock position.
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ABBREVIATIONS ABBREVIATIONS The following abbreviations are used in this manual. ABS = Anti–Lock Brake System ACIS = Acoustic Control Induction System A/C = Air Conditioning A/T = Automatic Transmission COMB. = Combination C/P = Coupe ECU = Electronic Control Unit EFI = Electronic Fuel Injection EGR = Exhaust Gas Recirculation ESA = Electronic Spark Advance Ex. = Except FL = Fusible Link IAC = Idle Air Control ISC = Idle Speed Control J/B = Junction Block LH = Left-Hand MFI = Multiport Fuel Inje
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GLOSSARY OF TERMS AND SYMBOLS BATTERY Current flow causes a headlight HEADLIGHTS Stores chemical energy and filament to heat up and emit light. 1. SINGLE converts it into electrical energy. A headlight may have either a FILAMENT Provides DC current for the auto’s single (1) filament or a double (2) various electrical circuits. filament. CAPACITOR (Condenser) 2. DOUBLE A small holding unit for temporary FILAMENT storage of electrical voltage. HORN CIGARETTE LIGHTER An electric device which sounds
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RELAY Basically, an electrically SPEAKER operated switch which may An electromechanical device 1. NORMALLY be normally closed (1) or which creates sound waves from open (2). CLOSED current flow. Current flow through a small coil creates a magnetic field which either 2. NORMALLY SWITCH, MANUAL opens or closes an OPEN attached switch. Opens and 1. NORMALLY closes circuits, OPEN thereby stopping (1) or RELAY, DOUBLE THROW allowing (2) A relay which passes current 2. NORMALLY current flow. through o
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RELAY LOCATIONS [Engine Compartment] [Instrument Panel] 18
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[Body] [Sedan] [Coupe] [Wagon] 19
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RELAY LOCATIONS : J/B No. 1 Instrument Panel Left (See Page 18) 20
