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Toyota ST185 Series Repair Manual

Toyota 1990 celica all–trac/4wd
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NOTICE
This vehicle has an SRS AIRBAG (referred to as the airbag in the remainder
of this manual).
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.
FOREWORD
This wiring diagram has been prepared to provide information
on the electrical system of the 1990 TOYOTA CELICA
All–Trac/4WD.
Applicable models:
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Manual Name
S 1990 Celica Repair Manual
S 1990 Celica All–Trac/4WD Repair
Manual Supplement
S 1990 Celica New Car Features
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
ST185 Series
NCF056U
Pub. No.
RM149U
RM176U

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  • Page 1 FOREWORD This wiring diagram has been prepared to provide information on the electrical system of the 1990 TOYOTA CELICA All–Trac/4WD. Applicable models: ST185 Series For service specifications and repair procedures of the above models other than those listed in this manual, refer to the following manuals;...
  • Page 2 INTRODUCTION This manual consists of the following 12 sections: Section Description INDEX Index of the contents of this manual. INTRODUCTION Brief explanation of each section. HOW TO USE Instructions on how to use this manual. THIS MANUAL TROUBLE– Describes the basic inspection procedures for electrical circuits. SHOOTING ABBREVIATIONS Defines the abbreviations used in this manual.

  • Page 3: How To Use This Manual

    HOW TO USE THIS MANUAL This manual provides information on the electrical circuits installed on vehicles by dividing them into each system circuit. 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...
  • Page 4 HOW TO USE THIS MANUAL...
  • Page 5 : System Title : Indicates the wiring color. : Indicates a Relay Block. No shading is used and only Wire colors are indicated by an alphabetical code. the Relay Block No. is shown to distinguish it from the = Black = Blue R = Red J/B.
  • Page 6 HOW TO USE THIS MANUAL 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. DRIVER’S WINDOW “MANUAL UP”...
  • Page 7 : Explains the system outline. : 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. 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.
  • Page 8 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.

  • Page 9: Ground Points

    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.

  • Page 10: Troubleshooting

    TROUBLESHOOTING VOLTAGE CHECK 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) 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.
  • Page 11 FINDING A SHORT CIRCUIT Remove the blown fuse and disconnect all loads of the fuse. Connect a test light in place of the fuse. Establish conditions in which the test light comes on. Example: – Ignition SW on – Ignition SW and SW 1 on –...
  • Page 12 TROUBLESHOOTING HOW TO REPLACEMENT FOR TERMINAL (with Terminal Retainer Type) DISCONNECT CONNECTOR DISCONNECT TERMINAL FROM CONNECTOR “for A type” Raise the terminal retainer up to the temporally lock position. HINT: The needle insertion position varies according to the connector’s shape (number of terminals etc.), so check the position before inserting it.
  • Page 13 ABBREVIATIONS ABBREVIATIONS The following abbreviations are used in this manual. = Air Conditioner = Anti–Lock Brake System COMB. = Combination = Electronic Control Unit = Electronic Fuel Injection = Exhaust Gas Recirculation = Except = Fusible Link = Idle Speed Control = Junction Block = Left-Hand = Manual Transmission...

  • Page 14: Glossary Of Terms And Symbols

    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.
  • Page 15 Basically, an electrically RELAY SPEAKER operated switch which may An electromechanical device be normally closed (1) or 1. NORMALLY which creates sound waves from open (2). CLOSED current flow. Current flow through a small coil creates a magnetic field which either 2.

  • Page 16: Relay Locations

    RELAY LOCATIONS [Engine Compartment] [Body]...
  • Page 17 [Instrument Panel]...
  • Page 18 RELAY LOCATIONS : J/B No. 1 Left Kick Panel (See Page 17)
  • Page 19 [J/B No. 1 Inner Circuit]...
  • Page 20 RELAY LOCATIONS : J/B No. 2 Near the Battery (See Page 16)
  • Page 21 [J/B No. 2 Inner Circuit]...
  • Page 22 RELAY LOCATIONS : J/B No. 3 Behind Combination Meter (See Page 17) [J/B No. 3 Inner Circuit]...
  • Page 23 : R/B No. 2 Left Kick Panel (See Page 17) : R/B No. 3 Right Kick Panel (See Page 17)
  • Page 24 RELAY LOCATIONS : R/B No. 4 Right Kick Panel (See Page 17) : R/B No. 5 Engine Compartment Front Right (See Page 16)

  • Page 25: Electrical Wiring Routing

    ELECTRICAL WIRING ROUTING Position of Parts in Engine Compartment 1 A/C Ambient Temp. Sensor 1 Fog Light LH 1 Noise Filter (for Ignition System) 2 A/C Condenser Fan Motor 2 Fog Light RH 3 A/C Idle–Up VSV 3 Front Airbag Sensor LH 1 Oil Pressure SW 4 A/C Magnet Clutch and 4 Front Airbag Sensor RH...
  • Page 26 ELECTRICAL WIRING ROUTING Position of Parts in Instrument Panel 18 A/C Amplifier 8 Clock 1 Junction Connector 19 A/C Control Assembly 9 Clutch Start SW 2 Junction Connector 20 A/C Control Assembly C 10 Combination Meter 3 Junction Connector 21 A/C Control Assembly C 11 Combination Meter 4 Junction Connector 22 A/C Power Transistor...
  • Page 27 Position of Parts in Body 37 ABS Deceleration Sensor 10 Interior Light 38 ABS ECU 39 ABS ECU 1 License Plate Light 40 ABS Speed Sensor Rear LH 2 Luggage Compartment Light 41 ABS Speed Sensor Rear RH 42 Auto Antenna Control Relay and Motor 2 Power Seat Motor (for Lumber Support) 3 Power Seat Motor (for Side Support) 6 Back Door Courtesy SW...
  • Page 28 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points...
  • Page 29 Connector Joining Wire Harness and Wire Harness CODE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF RIGHT FRONT FENDER) ENGINE WIRE AND COWL WIRE (REAR SIDE OF RIGHT FRONT FENDER) ENGINE WIRE AND COWL WIRE (REAR SIDE OF RIGHT FRONT FENDER) ENGINE WIRE AND ENGINE ROOM NO.
  • Page 30 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points...
  • Page 31 Connector Joining Wire Harness and Wire Harness CODE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL) FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL) ENGINE ROOM MAIN WIRE AND FLOOR WIRE (LEFT KICK PANEL) ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)
  • Page 32 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points...
  • Page 33 Connector Joining Wire Harness and Wire Harness CODE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND CONSOLE BOX WIRE (INSTRUMENT PANEL CENTER) COWL WIRE AND CONSOLE BOX WIRE (INSTRUMENT PANEL CENTER) COWL WIRE AND CONSOLE BOX WIRE (RIGHT KICK PANEL) COWL WIRE AND A/C NO 1 WIRE (BEHIND THE GLOVE BOX) COWL WIRE AND A/C NO.
  • Page 34 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points...
  • Page 35 Connector Joining Wire Harness and Wire Harness CODE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) FLOOR WIRE AND FRAME WIRE (LEFT SIDE OF FRONT FLOOR PANEL) FRAME WIRE AND SEAT WIRE (UNDER THE DRIVER’S SEAT) BACK DOOR NO. 1 WIRE AND FLOOR WIRE (LET SIDE OF PACKAGE TRAY TRIM) BACK DOOR NO.

  • Page 36: Power Source (Current Flow Chart)

    POWER SOURCE (Current Flow Chart) The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link, Circuit Breaker, Fuse, etc.) and other parts. The next page and following pages show the parts to which each electrical source outputs current. 60A FL ABS ABS Relay Ignition SW...
  • Page 37 ABS Actuator Engine Main Relay 7.5A IGN (Coil Side) EFI Resistor Injector No. 1 Injector No. 2 Igniter Injector No. 3 Ignition Coil Injector No. 4 Noise Filter Engine ECU 10A TURN 30A POWER 15A CIG & RADIO Ignition SW Circuit Opening 15A ECU–IG (AM1)
  • Page 38 POWER SOURCE (Current Flow Chart) Page Nos. of Related Systems Parts Code or Location A11 A17 A20 A22 A25 A30 A31 A32 A36 A37 CB or Fuse DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG & RADIO TAIL ECU–IG STOP HEAD LH HEAD RH DOME...
  • Page 39 54 135 124 54 144 118 71 103 84 115 84 100 98 118 B3 B4 B5 B6 C4 C5 : R/B No. 4 (See page...
  • Page 40 POWER SOURCE (Current Flow Chart) 100 54 Page Nos. of Related Systems Parts Code or Location D4 D5 D6 D7 D8 D9 D10 D14 E5 F5 F6 F8 F9 F10 F12 CB or Fuse DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG &...
  • Page 41 86 106 54 F17 G1 H2 H3 H4 H5 H6 N2 O2 P2 P3 P4 P5 P6 P7 : R/B No. 4 (See page...
  • Page 42 POWER SOURCE (Current Flow Chart) Page Nos. of Related Systems Parts Code or Location CB or Fuse P8 R1 R2 R3 R4 R5 R6 R8 R9 R10 R11 R20 R21 R23 DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG & RADIO TAIL ECU–IG STOP...
  • Page 43 112 112 84 106 54 54 115 R24 R25 S1 S6 S7 S8 S9 S10 S11 T3 V1 V2 V3 W1 W2 : R/B No. 4 (See page : R/B No. 3 (See page R/B No. 5 (See page...

  • Page 44: Power Source

    POWER SOURCE BATTERY FL MAIN 2. 0L , F11 FUSIBLE LINK ENGINE MAIN RELAY 30A FL RDI FAN TO ABS 30A FL CDS FAN RELAY TAILLIGHT RELAY 15A TAIL 15A STOP 15A ECU–B 30A DEFOGGER 20A FOG G–R 30A RTR 15A EFI 40A HEATER 20A DOME...
  • Page 45 SERVICE HINTS TAILLIGHT RELAY 3–4 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION ENGINE MAIN RELAY 4–5 : CLOSED WITH IGNITION SW AT ON OR ST POSITION HEADLIGHT RELAY 4–5 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION IGNITION SW 4–3 : CLOSED WITH IGNITION KEY AT ACC OR ON POSITION...

  • Page 46: Starting And Ignition

    STARTING AND IGNITION B–O B–O B–W IGNITION SW STARTER RELAY CLUTCH START SW FUSIBLE LINK BOX COLD START INJECTOR START INJECTOR TIME SW FL MAIN 2. 0L BATTERY , S 4 STARTER...
  • Page 47 B–O B–O B–O CHECK CONNECTOR IG– IGNITION COIL W–L DISTRIBUTOR IGNITIOR G– NOISE FILTER ( FOR IGNITION ) TO TACHOMETER G– , E 5 ENGINE ECU...
  • Page 48 STARTING AND IGNITION SERVICE HINTS STARTER POINTS CLOSED WITH CLUTCH START SW ON AND IGNITION SW AT ST POSITION STARTER RELAY (4) 2–(4) 4 : CLOSED WITH CLUTCH START SW ON AND IGNITION SW AT ST POSITION COLD START INJECTOR 1–2 : APPROX.
  • Page 50 CHARGING FROM POWER SOURCE SYSTEM FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) ( SEE PAGE 46 ) 7. 5A ECU–IG JUNCTION CONNECTOR CHARGE WARNING LIGHT [COMB. METER] , A17 ALTERNATOR FUSIBLE LINK BOX IC REGULATOR FL MAIN 2. 0L BATTERY...

  • Page 51: Service Hints

    SERVICE HINTS ALTERNATOR A17(A) (A) 2–GROUND: 13.9–15.1 VOLTS WITH ENGINE RUNNING AT 2000 RPM AND 25°C (77°F) 13.5–14.3 VOLTS WITH ENGINE RUNNING AT 2000 RPM AND 115°C (239°F) (A) 1–GROUND: 0–4 VOLTS WITH IGNITION SW AT ON POSITION AND ENGINE NOT RUNNING : PARTS LOCATION CODE SEE PAGE...

  • Page 52: Engine Control

    ENGINE CONTROL SYSTEM OUTLINE THE ENGINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE ENGINE AN OUTLINE OF ENGINE CONTROL IS GIVEN HERE. 1. INPUT SIGNALS (1) WATER TEMP. SIGNAL SYSTEM THE WATER TEMP. SENSOR DETECTS THE ENGINE COOLANT TEMP. AND HAS A BUILT–IN THERMISTOR WITH A RESISTANCE WHICH VARIES ACCORDING TO THE WATER TEMP.

  • Page 53: Diagnosis System

    * OXYGEN SENSOR HEATER CONTROL SYSTEM THE OXYGEN SENSOR HEATER CONTROL SYSTEM TURNS THE HEATER TO ON WHEN THE INTAKE AIR VOLUME IS LOW (TEMP. OF EXHAUST EMISSIONS LOW). AND WARMS UP THE OXYGEN SENSOR TO IMPROVE DETECTION PERFORMANCE OF THE SENSOR.
  • Page 54 ENGINE CONTROL B–O B–W B–Y STARTER FUEL PUMP RELAY IGNITION SW CONTROL RELAY CIRCUIT OPENING RELAY EFI RESISTOR L–B NO. 3 FUEL PUMP G–R FL MAIN 2. 0L W–B BATTERY...
  • Page 55 B–O B–O B–Y B–Y L–B B–Y FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) 7. 5A STOP TAIL GAUGE DIODE NO. 3 STOP LIGHT SW MAIN RELAY , C11 CHECK ENGINE [COMB. METER] JUNCTION CONNECTOR BATT , E 5 , E 6 L–B ENGINE ECU...
  • Page 56 ENGINE CONTROL B–O B–O B–Y B–Y B–Y L–B L–B B–Y B–Y W–L IGNITION COIL B–Y B–Y B–Y DISTRIBUTOR IGNITIOR ( FOR VALVE ( FOR EGR G– T–VIS ) SYSTEM ) (SEALED) TVIS G– IGF1 , E 5 , E 6 ENGINE ECU P–L P–L...
  • Page 57 B–Y L–B B–Y W–L IG– OXYGEN SENSOR ( SEALED ) ( SEALED ) , E 5 , E 6 ENGINE ECU THA1 KNK1 ( SEALED ) AIR FLOW KNOCK METER SENSOR...

  • Page 58: Efi Main Relay

    ENGINE CONTROL SERVICE HINTS EFI MAIN RELAY 4–2 : CLOSED WITH IGNITION SW AT ON OR ST POSITION EFI RESISTOR 2–1, 3, 4, 5 : 5–7 Ω INJECTOR I 4, I 5, I 6, I 7 1–2 : 2–4 Ω FUEL PUMP RESISTOR APPROX.
  • Page 59 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO. 4 (RIGHT KICK PANEL) R/B NO. 5 (ENGINE COMPARTMENT FRONT RIGHT) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
  • Page 60 ENGINE CONTROL...
  • Page 62 ILLUMINATION TAILLIGHT RELAY TAIL J/B NO. 3 RETRACT CONTROL RHEOSTAT RELAY (FOR CANADA) , C12 GLOVE BOX COMB. METER LIGHT FUSIBLE LINK GLOVE BOX LIGHT SW [COMB. SW] FL MAIN 2. 0L TAIL J/B NO. 3 HEAD BATTERY J/B NO. 3 JUNCTION A W–B CONNECTOR...
  • Page 63 J/B NO. 3 J/B NO. 3...
  • Page 64 ILLUMINATION SERVICE HINTS TAILLIGHT RELAY 3–4 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION (WHEN LIGHT AUTO TURN OFF SYSTEM IS OFF) RHEOSTAT 1–2 : APPROX. 12 VOLTS WITH RHEOSTAT FULLY TURNED COUNTERCLOCKWISE AND 0 VOLTS WITH FULLY TURNED CLOCKWISE : PARTS LOCATION CODE SEE PAGE...
  • Page 66 TAILLIGHT TAILLIGHT RELAY TAIL RETRACT CONTROL RELAY ( FOR CANADA ) FRONT FRONT SIDE MARKER CLEARANCE LIGHTS LIGHTS FUSIBLE LINK BOX [COMB. SW] FL MAIN 2. 0L TAIL HEAD BATTERY JUNCTION CONNECTOR (FOR EARTH)
  • Page 67 TAIL AND REAR TAIL AND REAR LICENCE PLATE SIDE MARKER SIDE MARKER LIGHT LIGHT LH LIGHT RH [REAR COMB. LIGHT] [REAR COMB. LIGHT]...
  • Page 68 TAILLIGHT SERVICE HINTS TAILLIGHT RELAY 3–4 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND J/B NO.
  • Page 69 HEADLIGHT (USA) SERVICE HINTS HEADLIGHT RELAY 1–2 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
  • Page 70 HEADLIGHT (USA) HEADLIGHT HEAD ( LH ) HEAD ( RH ) RELAY 6 2D HEADLIGHT HEADLIGHT R–W R–L FUSIBLE LINK R–Y R–Y FL MAIN R–L 2. 0L , C14 [COMB. SW] BATTERY TAIL HEAD HIGH BEAM INDICATOR LIGHT FLASH [COMB. METER] HIGH W–B JUNCTION...
  • Page 71 RETRACT CONTROL RELAY R–Y DOWN DOWN G–Y G–Y G–W G–W RETRACT MOTOR LH RETRACT MOTOR RH W–B...

  • Page 72: Fog Light

    FOG LIGHT (USA) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) HEAD ( LH ) HEAD ( RH ) HEADLIGHT HEADLIGHT R–W R–W FOG LIGHT RELAY [COMB. SW] LIGHT CONTROL SW ” HEAD” DIMMER SW ” HIGH” G–B R–W FOG LIGHT FOG LIGHT FOG LIGHT...
  • Page 73 SERVICE HINTS FOG LIGHT RELAY (3) 1–(3) 4 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION, DIMMER SW AT LOW POSITION AND FOG LIGHT SW ON : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION)
  • Page 74 FOG LIGHT AND HEADLIGHT (CANADA) HEADLIGHT HEAD ( LH ) HEAD ( RH ) RELAY HEADLIGHT HEADLIGHT FUSIBLE LINK , R10 R–L RETRACT CONTROL RELAY FL MAIN 2. 0L R–Y R–Y R–L BATTERY , C14 [COMB. SW] TAIL HEAD FOG LIGHT FLASH HIGH W–B...
  • Page 75 FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) TAILLIGHT ECU–IG RELAY JUNCTION CONNECTOR LIGHT RELAY , R10 RETRACT CONTROL RELAY G–O LIGHT LH LIGHT RH DOWN DOWN G–Y G–Y G–W G–W W–B RETRACT MOTOR LH...
  • Page 76 FOG LIGHT AND HEADLIGHT (CANADA) SYSTEM OUTLINE CURRENT FROM THE BATTERY FLOWS CONTINUOUSLY FROM FL 2.0L FL ALT TAILLIGHT RELAY (COIL SIDE) TERMINAL (A) 2 OF RETRACT CONTROL RELAY, FL 2.0L HEADLIGHT RELAY (COIL SIDE) TERMINAL (B) 8 OF RETRACT CONTROL RELAY. WHEN THE IGNITION SW IS TURNED ON, THE CURRENT FLOWING THROUGH THE ECU–IG FUSE FLOWS TO TERMINAL (A) 4 OF THE RETRACT CONTROL RELAY.
  • Page 77 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF RIGHT FRONT FENDER) ENGINE ROOM MAIN WIRE AND ENGINE WIRE (NEAR THE J/B NO. 2) ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) : GROUND POINTS CODE...

  • Page 78: Stop Light

    STOP LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) STOP STOP LIGHT SW JUNCTION CONNECTOR G–W HIGH STOP LIGHT LH STOP LIGHT RH MOUNT [REAR COMB. LIGHT] [REAR COMB. LIGHT] STOP LIGHT...
  • Page 79 SERVICE HINTS STOP LIGHT SW 1–3: CLOSED WITH BRAKE PEDAL DEPRESSED : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND J/B NO.

  • Page 80: Back-Up Lights

    BACK–UP LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) GAUGE J/B NO. 3 BACK–UP LIGHT SW R–B BACK–UP LIGHTS [REAR COMB. LIGHTS] W–B...
  • Page 81 SERVICE HINTS BACK–UP LIGHT SW 1–2 : CLOSED WITH SHIFT LEVER IN R POSITION : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND J/B NO.

  • Page 82: Turn Signal And Hazard Warning Light

    TURN SIGNAL AND HAZARD WARNING LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) TURN HAZ–HORN HAZARD SW TURN SIGNAL SW [COMB. SW] HAZARD TURN TURN SIGNAL FLASHER G–W JUNCTION CONNECTOR JUNCTION CONNECTOR G–B INDICATOR LIGHTS [COMB. METER] REAR COMB. FRONT TURN FRONT TURN REAR COMB.
  • Page 83 SERVICE HINTS T 3 TURN SIGNAL FLASHER 2–GROUND : APPROX. 12 VOLTS WITH IGNITION SW ON OR HAZARD SW ON 1–GROUND : CHANGES FROM 12 TO 0 VOLTS WITH IGNITION SW ON AND TURN SIGNAL SW LEFT OR RIGHT, OR WITH HAZARD SW ON 3–GROUND : ALWAYS CONTINUITY : PARTS LOCATION CODE...

  • Page 84: Interior Light

    INTERIOR LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) DOME JUNCTION CONNECTOR NO. 3 JUNCTION CONNECTOR R–W R–W R–W JUNCTION CONNECTOR DOOR COURTESY DOOR COURTESY ( FOR EARTH ) SW LH SW RH...
  • Page 85 SERVICE HINTS INTEGRATION RELAY (1B)11–GROUND : APPROX. 12 VOLTS WITH DOOR CLOSED 0 VOLTS WITH EACH DOOR OPEN DOOR COURTESY SW D 9, D10 1–GROUND : CLOSED WITH DOOR OPEN BACK DOOR COURTESY SW 1–GROUND : CLOSED WITH BACK DOOR OPEN : PARTS LOCATION CODE SEE PAGE...

  • Page 86: Light Reminder Buzzer

    LIGHT REMINDER BUZZER FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) GAUGE CIG & RADIO TAIL DOME BUZZER INTEGRATION RELAY (FOR LIGHT REMINDER) DOOR COURTESY SW LH JUNCTION CONNECTOR (FOR EARTH)
  • Page 87 SYSTEM OUTLINE CURRENT ALWAYS FLOWS TO TERMINAL 1 OF THE LIGHT REMINDER RELAY THROUGH THE DOME FUSE. WITH THE IGNITION SW IN ACC POSITION, CURRENT FLOWS TO TERMINAL 11 OF THE LIGHT REMINDER RELAY. WHEN THE IGNITION SW IS TURNED TO ON POSITION, CURRENT FLOWS TO TERMINAL 7 THE LIGHT REMINDER RELAY. WHEN THE LIGHT CONTROL SW IS TURNED TO TAIL OR HEAD POSITION, CURRENT IS APPLIED TO TERMINAL 12 THE LIGHT REMINDER RELAY.

  • Page 88: Power Window

    POWER WINDOW FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) GAUGE POWER JUNCTION DIODE ( FOR KEY OFF ) CONNECTOR R–L R–L R–L L–Y L–Y NO. 3 R–L L–Y POWER MAIN RELAY DOOR LOCK ECU W–L KEY OFF W–G POWER WINDOW W–B POWER WINDOW MASTER SW...
  • Page 89 SYSTEM OUTLINE CURRENT ALWAYS FLOWS TERMINAL 4 OF THE POWER MAIN RELAY THROUGH THE POWER FUSE. WITH THE IGNITION SW TURNED ON, CURRENT FLOWS THROUGH THE GAUGE FUSE TO TERMINAL 2 OF THE POWER MAIN RELAY TERMINAL 3 GROUND. THIS ACTIVATES THE RELAY AND CURRENT FLOWING TO TERMINAL 1 OF THE POWER MAIN RELAY TO TERMINAL 6 OF THE POWER WINDOW MASTER SW AND TERMINAL 5 OF THE POWER WINDOW SW RH (PASSENGER’S).
  • Page 90 POWER WINDOW SERVICE HINTS DOOR LOCK ECU 8–GROUND : ALWAYS APPROX. 12 VOLTS 16–GROUND: ALWAYS CONTINUITY 1–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 2–GROUND : CONTINUITY WITH DOOR OPENED 15–GROUND: APPROX. 12 VOLTS WITH IGNITION SW ON AND STAYS AT 12 VOLTS FOR 60 SECONDS AFTER THE IGNITION SW IS TURNED OFF, BUT IF A DOOR IS OPENED IN THIS 60 SECONDS PERIOD, VOLTAGE WILL DROP TO 0 VOLTS DOOR COURTESY SW 1–GROUND: CONTINUITY WITH DOOR OPEN...
  • Page 91 DOOR LOCK...
  • Page 92 DOOR LOCK FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) POWER MAIN POWER GAUGE RELAY POWER MAIN RELAY JUNCTION W–L NO. 3 CONNECTOR R–L R–L R–L DOOR LOCK ECU LOCK TIMER KEY OFF UNLOCK TIMER L–O JUNCTION CONNECTOR L–B L–R L–R L–W...

  • Page 93: Key Reminder

    DOOR LOCK ECU SECURITY KEY REMINDER L–O L–O L–B L–B L–R L–W W–B W–B...
  • Page 94 DOOR LOCK SYSTEM OUTLINE CURRENT ALWAYS FLOWS TO TERMINAL 8 OF THE DOOR LOCK ECU AND TERMINAL 4 OF THE POWER MAIN RELAY THROUGH POWER FUSE. 1. MANUAL LOCK OPERATION TO CHANGE DOOR LOCK SW AND KEY SW TO LOCK POSITION, A LOCK SIGNAL IS INPUT TO TERMINAL 10, 12 OF THE DOOR LOCK ECU AND CAUSES THE RELAY TO FUNCTION.
  • Page 95 1–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 9–GROUND : 0 VOLTS WITH DRIVER’S DOOR LOCK CYLINDER UNLOCKED WITH KEY 15–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 12–GROUND : 0 VOLTS WITH DRIVER’S, PASSENGER’S DOOR LOCK CYLINDER LOCKED WITH KEY UNLOCK WARNING SW 1–5 : CLOSED WITH IGNITION KEY IN CYLINDER KEY LOCK AND UNLOCK SW...

  • Page 96: Rear Wiper And Washer

    REAR WIPER AND WASHER FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) WIPER WASHER MOTOR REAR WIPER AND WASHER SW [COMB. SW] WASHER 1 WASHER 2 REAR WIPER CONTROL RELAY AND MOTOR REAR WIPER RELAY REAR WIPER JUNCTION MOTOR CONNECTOR ( FOR EARTH )
  • Page 97 SYSTEM OUTLINE WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS TO TERMINAL 2 OF THE REAR WASHER MOTOR, TERMINAL 1 OF THE REAR WIPER MOTOR AND RELAY THROUGH THE WIPER FUSE. 1. REAR WIPER NORMAL OPERATION WITH THE IGNITION SW TURNED ON AND REAR WIPER AND WASHER SW TURNED ON, THE CURRENT FLOWING TO ERMINAL 1 OF THE REAR WIPER RELAY FLOWS TO TERMINAL 3 OF THE RELAY TERMINAL 1 OF THE REAR WIPER AND WASHER SW TERMINLA 16...

  • Page 98: Front Wiper And Washer

    FRONT WIPER AND WASHER FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) WIPER WASHER MOTOR FRONT WIPER AND WASHER SW (W/ WIPER RELAY) [COMB. SW] L–W L–B L–O JUNCTION CONNECTOR ( FOR EARTH ) FRONT WIPER MOTOR...
  • Page 99 SYSTEM OUTLINE WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 18 OF THE WIPER AND WASHER SW, TERMINAL 2 OF THE WASHER MOTOR AND TERMINAL 4 OF THE FRONT WIPER MOTOR THROUGH THE WIPER FUSE. 1. LOW SPEED POSITION WITH WIPER SW TURNED TO LOW POSITION, THE CURRENT FLOWS FROM TERMINAL 18 OF THE WIPER AND WASHER SW TERMINAL 7 TERMINAL 2 OF THE FRONT WIPER MOTOR...
  • Page 100 FRONT WIPER AND WASHER : SPLICE POINTS CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS COWL WIRE...
  • Page 101 UNLOCK AND SEAT BELT WARNING...
  • Page 102 UNLOCK AND SEAT BELT WARNING FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) DOME GAUGE R–L J/B NO. 3 , C12 SEAT BELT WARNING LIGHT [COMB. METER] SEAT BELT WARNING RELAY ( INTEGRATION RELAY ) TIMER BUZZER Y–G Y–G JUNCTION CONNECTOR UNLOCK...
  • Page 103 SYSTEM OUTLINE CURRENT ALWAYS FLOWS TO TERMINAL 1 OF THE SEAT BELT WARNING RELAY [INTEGRATION RELAY] THROUGH DOME FUSE. 1. SEAT BELT WARNING SYSTEM WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 7 OF THE SEAT BELT WARNING RELAY.

  • Page 104: Rear Window Defogger

    REAR WINDOW DEFOGGER FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) GAUGE DEFOGGER DEFOGGER RELAY NO. 3 DEFOGGER SW , R22 NOISE FILTER REAR WINDOW (FOR DEFOGGER) REAR WINDOW DEFOGGER DEFOGGER NO. 3 W–B JUNCTION CONNECTOR ( FOR EARTH )

  • Page 105: Service Hints

    SERVICE HINTS DEFOGGER RELAY 1–3 : CLOSED WITH IGNITION SW ON AND DEFOGGER SW ON DEFOGGER SW 3–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 2–GROUND : ALWAYS CONTINUITY : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR...

  • Page 106: Power Seat

    POWER SEAT FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) POWER GAUGE DIODE JUNCTION ( FOR KEY OFF ) CONNECTOR NO. 3 L–Y R–L R–L POWER MAIN RELAY W–B POWER SEAT SW POWER SEAT MOTOR POWER SEAT MOTOR ( FOR LUMBER SUPPORT ) ( FOR SIDE SUPPORT ) JUNCTION CONNECTOR...
  • Page 107 SERVICE HINTS POWER MAIN RELAY (2) 1–(2) 4 : CLOSED WITH IGNITION SW AT ON POSITION POWER SEAT SW 7– GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 8– GROUND : ALWAYS CONTINUITY : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE...

  • Page 108: Remote Control Mirror

    REMOTE CONTROL MIRROR FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) CIG & RADIO NO. 3 REMOTE CONTROL MIRROR SW LG–R NO. 3 REMOTE CONTROL REMOTE CONTROL MIRROR LH MIRROR RH JUNCTION CONNECTOR ( FOR EARTH )
  • Page 109 SERVICE HINTS REMOTE CONTROL MIRROR SW 1–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION 2–3 : CONTINUITY WITH OPERATION SW AT UP OR LEFT POSITION 1–2 : CONTINUITY WITH OPERATION SW AT DOWN OR RIGHT POSITION : PARTS LOCATION CODE SEE PAGE...
  • Page 110 SUN ROOF FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) GAUGE POWER JUNCTION DIODE ( FOR KEY OFF ) CONNECTOR R–L R–L L–Y NO. 3 POWER MAIN RELAY W–G W–G SUN ROOF CONTROL RELAY TIMER SUN ROOF MOTOR SUN ROOF SUN ROOF CONTROL SW LIMIT SW...

  • Page 111: System Outline

    SYSTEM OUTLINE CURRENT ALWAYS FLOWS TO TERMINAL 4 OF THE POWER MAIN RELAY THROUGH THE POWER FUSE, WITH THE IGNITION SW TURNED ON, CURRENT FLOWS THROUGH THE GAUGE FUSE TO TERMINAL 2 OF THE POWER MAIN RELAY. THIS ACTIVATES THE RELAY AND CURRENT FLOWING TO TERMINAL 4 OF THE POWER MAIN RELAY FLOWS TO TERMINAL 1 OF THE POWER MAIN RELAY TO TERMINAL 6 OF THE SUN ROOF CONTROL RELAY.
  • Page 112 SUN ROOF : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO. 2 (LEFT KICK PANEL) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND J/B NO 1 (LEFT KICK PANEL) COWL WIRE AND J/B NO.
  • Page 113 HORN FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) HAZ–HORN HORN RELAY G–R G–R HORN SW HORN HORN [COMB. SW] SERVICE HINTS HORN RELAY (5) 3– (5) 1 : CLOSED WITH HORN SW ON : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE...
  • Page 114 AUTO TILT AWAY STEERING FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) POWER GAUGE J/B NO. 3 AUTO TILT AWAY ECU JUNCTION CONNECTOR UNLOCK WARNING SW AUTO TILT AWAY ACTUATOR JUNCTION CONNECTOR (FOR EARTH)
  • Page 115 SYSTEM OUTLINE THIS SYSTEM ALLOWS EASIER ENTRY AND EXIT BY THE DRIVER BY MOVING THE STEERING POSITION TO THE UPPER POSITION WHEN THE IGNITION KEY IS REMOVED. CURRENT ALWAYS FLOWS FROM THE POWER FUSE TO TERMINAL 1 OF AUTO TILT AWAY ECU. WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE AS FAR AS TERMINAL 6.

  • Page 116: Cruise Control

    CRUISE CONTROL FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) ECU–IG GAUGE CHECK CONNECTOR NO. 3 B–R JUNCTION CONNECTOR , C11 CRUISE CONTROL INDICATOR LIGHT [COMB. METER] , C17 CRUISE CONTROL ECU N&C CRUISE CONTROL CLUTCH SW SPEED SENSOR ( FOR CRUISE CONTROL SYSTEM ) JUNCTION...
  • Page 117 FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) STOP ENGINE ECU , C17 CRUISE CONTROL ECU STP– STP+ JUNCTION CONNECTOR R–G STOP LIGHT JUNCTION CONNECTOR PARKING BRAKE SW TO STOP LIGHT W–B CRUISE CONTROL ACTUATOR...
  • Page 118 CRUISE CONTROL SYSTEM OUTLINE CURRENT IS APPLIED AT ALL TIMES THROUGH STOP FUSE TO TERMINAL (A) 2 OF THE CONTROL ECU AND TERMINAL 1 OF STOP LIGHT SWITCH, AND ALSO THROUGH THE DOME FUSE TO TERMINAL (A) 6 OF CRUISE CONTROL ECU. WITH THE IGNITION SWITCH TURNED TO ON, THE CURRENT FLOWS THROUGH GAUGE FUSE TO TERMINAL (A) 7 OF CRUISE CONTROL INDICATOR LIGHT.
  • Page 119 7. AUTO CANCEL FUNCTION IF ANY OF THE FOLLOWING OPERATE CONDITIONS OCCURS DURING CRUISE CONTROL OPERATION. THE SET SPEED IS ERASED, CURRENT FLOW TO SAFETY MAGNETIC CLUTCH IS STOPPED AND THE CRUISE CONTROL IS RELEASED. (MAIN SWITCH TURNS OFF). WHEN THIS OCCURS, THE IGNITION SWITCH MUST BE TURNED OFF ONCE BEFORE THE MAIN SWITCH WILL TURN ON. ∗...
  • Page 120 CRUISE CONTROL : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND J/B NO 1 (LEFT KICK PANEL) COWL WIRE AND J/B NO.1 (LEFT KICK PANEL) ENGINE ROOM MAIN WIRE AND J/B NO.
  • Page 122 ABS (ANTI–LOCK BRAKE SYSTEM) FL MAIN 2. 0L 60A FL ABS BATTERY , F11 FUSIBLE LINK BOX W–L , A10 ABS CHECK CONNECTOR , A12 , A 8 ABS RELAY ABS ACTUATOR W–G W–R R– , A39 ABS ECU FL– FR–...
  • Page 123 FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) GAUGE ECU–B STOP ECU–IG B–R NO. 3 ABS DECELERATION SENSOR STOP LIGHT , C11 WARNING LIGHT [COMB. METER] JUNCTION CONNECTOR , A39 ABS ECU RL– RR– ABS SPEED ABS SPEED SENSOR REAR LH SENSOR REAR RH...

  • Page 124: System Operation

    ABS (ANTI–LOCK BRAKE SYSTEM) SYSTEM OUTLINE THIS SYSTEM CONTROLS THE RESPECTIVE BRAKE FLUID PRESSURES ACTING ON THE DISC BRAKE CYLINDERS OF THE RIGHT FRONT WHEEL, LEFT FRONT WHEEL AND REAR WHEELS WHEN THE BRAKES ARE APPLIED IN A PANIC STOP SO THAT THE WHEELS DO NOT LOCK.
  • Page 125 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) COWL WIRE AND J/B NO 1 (LEFT KICK PANEL) COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL) FLOOR WIRE AND J/B NO.
  • Page 126 ABS (ANTI–LOCK BRAKE SYSTEM)

  • Page 127: Srs Airbag

    SRS AIRBAG NOTICE: When inspecting or repairing the SRS AIRBAG, perform the operation in accordance with the following precautionary instructions and the procedure and precautions in the Repair Manual for the applicable model year. Malfunction symptoms of the airbag system are difficult to confirm, so the diagnostic codes become the most important source of information when troubleshooting.
  • Page 128 SRS AIRBAG The airbag system has connectors which possess the functions described below: 1. AIRBAG ACTIVATION PREVENTION MECHANISM Each connector contains a short spring plate. When the connector is disconnected, the short spring plate automatically connects the power source and grounding terminals of the squib to preclude a potential difference between the terminals.
  • Page 129 3. CONNECTOR TWIN–LOCK MECHANISM With this mechanism connectors (male and female connectors) are locked by two locking devices to increase connection reliability. If the primary lock is incomplete, ribs interfere and prevent the secondary lock.
  • Page 130 SRS AIRBAG FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) 7. 5A CIG & ECU–IG ECU–B RADIO CHECK CONNECTOR AIRBAG WARNING LIGHT [COMB. METER] CENTER AIRBAG SENSOR ASSEMBLY –SL –SR D– SPIRAL CABLE FRONT AIRBAG FRONT AIRBAG AIRBAG SQUIB SENSOR LH SENSOR RH...
  • Page 131 SYSTEM OUTLINE THE SRS (SUPPLEMENTAL RESTRAINT SYSTEM) AIRBAG IS A DRIVER PROTECTION DEVICE WHICH HAS A SUPPLEMENTAL ROLE TO THE SEAT BELTS. CURRENT FLOWS CONSTANTLY TO TERMINAL 6 OF THE CENTER AIRBAG SENSOR ASSEMBLY. WHEN THE IGNITION SW IS TURNED TO ACC OR ON, CURRENT FROM THE CIG & RAD FUSE FLOW TO TERMINAL 14 OF THE CENTER AIRBAG SENSOR ASSEMBLY.
  • Page 132 SRS AIRBAG...

  • Page 133: Cigarette Lighter And Clock

    CIGARETTE LIGHTER AND CLOCK FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) CIG & RADIO TAIL DOME J/B NO. 3 NO. 3 TO RETRACT CONTROL RELAY, A/C CONTROL ASSEMBLY (CANADA) CIGARETTE LIGHTER CLOCK W–B L–Y J/B NO. 3 NO. 3 W–B JUNCTION CONNECTOR...

  • Page 134: Auto Antenna

    AUTO ANTENNA FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) CIG & ECU–IG DOME RADIO STEREO COMPONENT AMPLIFIER J/B NO. 3 ( W/ CD PLAYER ) ACC1 ( W/ CD PLAYER ) ( W/O CD PLAYER ) AMP+ PLAYER RADIO AND PLAYER RADIO ( W/O CD PLAYER )
  • Page 135 SERVICE HINTS AUTO ANTENNA CONTROL RELAY 9–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 5–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION 7–GROUND : ALWAYS APPROX. 12 VOLTS 8–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION AND RADIO SW ON 3–GROUND : CONTINUITY (UPPER LIMIT SW ON) UNLESS ANTENNA AT UP STOP 2–GROUND : CONTINUITY (DOWN LIMIT SW ON) UNLESS ANTENNA AT DOWN STOP 4–3 : CLOSED WITH IGNITION SW AT ACC OR ON POSITION AND RADIO SW ON AND PLAYER SW OFF UNTIL ANTENNA AT...
  • Page 136 RADIO AND PLAYER (w/ CD PLAYER) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) DOME REAR TWEETER REAR TWEETER ( SPEAKER ) ( SPEAKER ) , R17 , R15 REAR REAR SPEAKER SPEAKER DOOR SPEAKER DOOR SPEAKER JUNCTION CONNECTOR WL–...
  • Page 137 FROM POWER SOURCE SYSTEM (SEE PAGE 46) CIG & RADIO J/B NO. 3 STEREO COMPONENT AMPLIFIER BEEP SGND MUTE AMP+ BEEP SGND MUTE RADIO AND PLAYER ( W/ CD PLAYER ) TO AUTO ANTENNA...
  • Page 138 RADIO AND PLAYER (w/ CD PLAYER) SERVICE HINTS POWER AMPLIFIER S 5 (B), S 6 (A) (A) 7, (A)16–GROUND : ALWAYS APPROX. 12 VOLTS (B) 7–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON OR ACC POSITION (A)12, (A)13–GROUND : ALWAYS CONTINUITY : PARTS LOCATION CODE SEE PAGE...
  • Page 139 RADIO AND PLAYER (w/o CD PLAYER) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) DOME CIG & RADIO NO. 3 , R 7 RADIO AND PLAYER JUNCITON CONNECTOR FRONT TWEETER ( SPEAKER ) LH L–Y FL– FRONT SPEAKER B–R B–R FR–...
  • Page 140 SERVICE HINTS RADIO AND PLAYER R 6(A), R 7(B) (A) 4–GROUND : ALWAYS APPROX. 12 VOLTS (A) 3–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON OR ACC POSITION (A) 7–GROUND : ALWAYS CONTINUITY : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE...

  • Page 141: Combination Meter

    COMBINATION METER FROM POWER SOURCE SYSTEM (SEE PAGE 46) 7. 5A DOME TAIL ECU–B NO. 3 NO. 3 JUNCTION CONNECTOR BULB CHECK CIRCUIT , C11 , C12 COMBINATION METER NO. 3 BRAKE PARKING FLUID BRAKE SW LEVEL SW...
  • Page 142 FROM POWER SOURCE SYSTEM (SEE PAGE 46) GAUGE J/B NO. 3 , C11 , C12 COMBINATION METER TURBO CHARGING PRESSURE SENSOR IGNITER WATER TEMP. SENDER...
  • Page 143 COMBINATION METER SERVICE HINTS B 2 BRAKE FLUID LEVEL SW 1–2 : CLOSED WITH FLOAT DOWN C13(A), C14(B), C15(C) COMBINATION METER (A) 7, (C) 3–GROUND : ALWAYS APPROX. 12 VOLTS (B) 7, (C) 9–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION (A) 5, (B) 1, (B) 5–GROUND : ALWAYS CONTINUITY F18 FUEL SENDER 3–4 :APPROX.
  • Page 145 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) R–L R–L R–L HEATER GAUGE , A33 , A34 AUTO A/ C AMPLIFIER R–L R–L R–L NO.
  • Page 146 R–L R–L R–L R–L R–L R–L , A33 , A34 AUTO A/C AMPLIFIER TEST BS/W R–L R–L R–L G–W L–O B–Y R–Y A/C ROOM TEMP. SENSOR W–R V–W V–W R–L O–B O–B W–L W–L W–L W–B W–B B–R B–R R–L FOOT/DEF FOOT BI–LEVEL...
  • Page 147 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) R–L R–L R–L R–L R–L R–L , A33 , A34 AUTO A/C AMPLIFIER AUTO FOOT BAUTO FACE MAUTO FOOT G–W G–W L–O B–Y B–Y R–Y R–Y A/C AMBIENT TEMP.
  • Page 148 R–L R–L R–L R–L R–L R–L , A33 , A34 AUTO A/C AMPLIFIER LOCK REC FRS FRSV AMH AMC B–Y V–R V–R R–Y P–G R–W V–R G–R R–L W–G W–G W–B W–B B–R A/C SYSTEM AMPLIFIER W–B NO. 3 JUNCTION RECIRC FRESH CONNECTOR...
  • Page 149 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) R–L R–L FROM POWER SOURCE SYSTEM (SEE PAGE 46) R–L R–L R–L V–R CIG & DOME RADIO , A33 , A34 AUTO A/C AMPLIFIER J/B NO. 3 L–Y L–Y V–R...
  • Page 150 FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) R–L R–L 7. 5A FL RDI FL CDS FAN A/C MAGNET CLUTCH RELAY B–W B–O A/C CONDENSER FAN MOTOR A/C CONDENSER RADIATOR FAN FAN RELAY NO. 3 RELAY NO. 1 RADIATOR FAN MOTOR W–B A/C PRESSURE...
  • Page 151 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) SYSTEM OUTLINE 1. COOLING FAN OPERATION WHEN THE IGNITION SW IS TURNED ON, THE CURRENT FROM IGN FUSE FLOWS TO TERMINAL 3 OF RADIATOR FAN RELAY NO. 1 TERMINAL 4 TERMINAL 3 OF THE A/C PRESSURE SW TERMINAL 2...
  • Page 152 * MEDIUM SPEED OPERATION (OPERATION AT MANUAL M1, M2) WHEN THE BLOWER SW (A/C CONTROL ASSEMBLY) IS MOVED TO M1 POSITION, A SIGNAL IS INPUT FROM TERMINAL B3 OF A/C CONTROL ASSEMBLY TO TERMINAL M1 OF A/C AUTO AMPLIFIER THIS CAUSES TO CURRENT FLOWING TO TERMINAL HR OF THE A/C AUTO AMPLIFIER TO FLOW TO TERMINAL GND OF A/C AUTO AMPLIFIER GROUND AND TURNS THE HEATER RELAY ON.

  • Page 153: Service Hints

    RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) SYSTEM OUTLINE 6. AIR CONDITIONER OPERATION THE A/C AMPLIFIER RECEIVES VARIOUS SIGNALS, THE ENGINE RPM SIGNAL FROM THE IGNITER, OUTLET TEMPERATURE SIGNAL FROM THE A/C THERMISTER, COOLANT TEMPERATURE FROM THE WATER TEMP. SENSOR, AND THE LOCK SIGNAL FROM THE A/C COMPRESSOR, ETC.
  • Page 154 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO. 4 (RIGHT KICK PANEL) R/B NO. 5 (ENGINE COMPARTMENT FRONT RIGHT) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
  • Page 155 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW)
  • Page 156 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO. 4 (RIGHT KICK PANEL) R/B NO.
  • Page 157 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) R–L HEATER GAUGE A/C SYSTEM AMPLIFIER R–L R–L R–L R–L R–L R–L NO. 3 W–L JUNCTION CONNECTOR R–L R–L...
  • Page 158 R–L R–L A/C SYSTEM AMPLIFIER R–L W–L W–L R–L R–L R–L V–R V–R V–R V–R B–Y L–O L–W L–W L–W G–W R–L W–B W–B BR–Y BR–Y R–Y LG–W LG–W R–W R–W FOOT/DEF FOOT BI–LEVEL FACE , A20 A/C CONTROL ASSEMBLY AIR VENT MODE CONTROL SERVO MOTOR...
  • Page 159 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) R–L R–L R–L RECIRC/FRESH CONTROL SERVO MOTOR W–G R–L V–R V–R V–R B–Y B–Y L–O L–O G–W G–W BR–Y BR–Y R–Y R–Y R–Y R–Y R–Y LG–W LG–W R–W...
  • Page 160 R–L R–L V–R A/C PRESSURE W–G V–R V–R Y–R G–R P–G R–W R–W A/C AMPLIFIER B–W A/C MAGNET CLUTCH AND COMPRESSOR SENSOR W–B W–B W–B RECIRC/FRESH NO. 3 , A20 A/C CONTROL ASSEMBLY JUNCTION CONNECTOR...
  • Page 161 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 46 ) R–L R–L 7. 5A FL RDI FL CDS FAN A/C MAGNET CLUTCH RELAY B–W B–O A/C CONDENSER FAN MOTOR CONDENSER CONDENSER...
  • Page 162 BLACK BLACK GRAY BLACK X X X X 5 6 7 8 9 10 11 X X X X X X 18 19 20 21 X X 8 X 10 11 12 BLACK 3 4 X 6 4 5 6 7 8 9 10 11 12 BLACK BLACK...
  • Page 163 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) SYSTEM OUTLINE 1. COOLING FAN OPERATION WHEN THE IGNITION SW IS TURNED ON, THE CURRENT FROM IGN FUSE FLOWS TO TERMINAL 3 OF RADIATOR FAN RELAY NO. 1 TERMINAL 4 TERMINAL 3 OF THE A/C PRESSURE SW TERMINAL 2...
  • Page 164 * MEDIUM SPEED OPERATION (OPERATION AT MANUAL M1, M2) WHEN THE BLOWER SW (A/C CONTROL ASSEMBLY) IS MOVED TO M1 POSITION, CURRENT FLOWS FROM TERMINAL C3 OF A/C CONTROL ASSEMBLY TO TERMINAL C10 OF A/C CONTROL ASSEMBLY GROUND AND TURNS THE HEATER RELAY ON. AS A RESULT, THE CURRENT FLOWING TO TERMINAL C2 OF THE A/C CONTROL ASSEMBLY FLOWS TO TERMINAL C10 OF THE A/C CONTROL ASSEMBLY GROUND, TURNING THE BLOWER CONTROL RELAY ON SO THAT THE CURRENT FLOWING FROM THE...

  • Page 165: Ground Point

    GROUND POINT W–B CRUISE CONTROL ACTUATOR W–B W–B WATER TEMP. SW NOISE FILTER ( FOR FANS CONTROL ) ( FOR IGNITION ) W–B RADIATOR FAN MOTOR W–B EFI MAIN RELAY FOG LIGHT LH W–B ENGINE MAIN RELAY FOG LIGHT RH W–B W–B A/C CONDENSER FAN...
  • Page 166 W–B STEREO COMPONENT AMPLIFIER (W/ CD PLAYER) I 5 : USA I 8 : CANADA RADIO AND PLAYER ( W/O CD PLAYER ) I 5 : USA I 8 : CANADA INTEGRATION RELAY DEFOGGER RELAY W–B DOOR LOCK ECU W–B W–B POWER MAIN RELAY W–B...
  • Page 167 GROUND POINT W–B W–B DOOR LOCK CONTROL SW RH W–B W–B W–B W–B AUTO TILT AWAY ECU DOOR LOCK MOTOR RH AND KEY LOCK AND W–B W–B UNLOCK SW RH HEATER RELAY W–B W–B BLOWER RESISTOR CLUTCH START SW W–B W–B W–B W–B...
  • Page 168 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO. 2 (LEFT KICK PANEL) R/B NO. 4 (RIGHT KICK PANEL) R/B NO. 5 (ENGINE COMPARTMENT FRONT RIGHT) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE...

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