1. Manuals
  2. Brands
  3. Toyota Manuals
  4. Automobile
  5. AT180 Series
  6. Repair manual

Toyota AT180 Series Repair Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

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 (FWD).
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 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
AT180 Series
ST184 Series
NCF056U
Pub. No.
RM149U

Advertisement

Table of Contents
loading

Related Manuals for Toyota AT180 Series

Summary of Contents for Toyota AT180 Series

  • Page 1 FOREWORD This wiring diagram has been prepared to provide information on the electrical system of the 1990 TOYOTA CELICA (FWD). Applicable models: AT180 Series ST184 Series For service specifications and repair procedures of the above models other than those listed in this manual, refer to the...
  • 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 = Automatic Transmission = Coupe Type COMB. = Combination = Electronic Controlled Transmission = Electronic Control Unit = Electronic Fuel Injection = Exhaust Gas Recirculation = Except = Fusible Link = Integrated Ignition Assembly...

  • 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 [5S–FE] 1 A/C Ambient Temp. Sensor 1 Distributor 2 A/C Condenser Fan Motor 3 A/C Idle–Up VSV 1 ECT Solenoid 4 A/C Magnet Clutch 2 EFI Water Temp. Sensor 5 A/C Pressure SW 3 EGR Gas Temp.
  • Page 26 Position of Parts in Engine Compartment [4A–FE] 1 IIA 1 Radiator Fan Motor 2 IIA 2 Retract Motor LH 3 ISC Valve 3 Retract Motor RH 4 Igniter 5 Ignition Coil 1 Speed Sensor (for Cruise Control System) 6 In–Air Temp. Sensor 2 Speed Sensor (for ECT) 7 Injector No.1 3 Speed Sensor (for Cruise Control System)
  • Page 27 ELECTRICAL WIRING ROUTING Position of Parts in Instrument Panel 17 A/C Amplifier 7 Center Airbag Sensor Assembly 18 A/C Control Assembly 8 Cigarette Lighter 19 A/C Control Assembly 9 Cigarette Lighter Illumination 20 A/C Control Assembly C 10 Circuit Opening Relay 21 A/C Control Assembly C 11 Clock 22 A/C Power Transistor...
  • Page 28 Position of Parts in Instrument Panel 4 ECT Pattern Select SW 1 Key Inter Lock Solenoid 5 Engine ECU (4A–FE) 6 Engine and ECT ECU (5S–FE) 4 Noise Filter (for Defogger System) 7 Engine and ECT ECU (5S–FE) 8 Engine and ECT ECU 7 O/D Main SW 9 Extra High Speed Relay 1 Parking Brake SW...
  • Page 29 ELECTRICAL WIRING ROUTING Position of Parts in Body [L/B] 37 ABS ECU D 12 Door Lock Control SW LH 38 ABS ECU D 13 Door Lock Control SW RH 39 ABS Speed Sensor Rear LH D 14 Door Lock Motor LH and, Key Lock and Unlock 40 ABS Speed Sensor Rear RH SW LH 41 Auto Antenna Control Relay and Motor...
  • Page 30 Position of Parts in Body [C/P] 1 License Plate Light R 18 Rear Tweeter (Speaker) LH 2 Luggage Compartment Door Courtesy SW (C/P) R 19 Rear Tweeter (Speaker) RH 3 Luggage Compartment Light (C/P) R 20 Rear Window Defogger (+, C/P) 4 Luggage Compartment Light (L/B) R 21 Rear Window Defogger (+, L/B w/o Diversity Antenna)
  • Page 31 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points [5S–FE] : Location of Splice Points...
  • Page 32 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 ROOM MAIN WIRE AND ENGINE WIRE (NEAR THE J/B NO.
  • Page 33 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points [4A–FE] : Location of Splice Points...
  • Page 34 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.2 WIRE (NEAR THE STARTER) ENGINE ROOM MAIN WIRE AND ENGINE WIRE (NEAR THE J/B NO.
  • Page 35 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points...
  • Page 36 Connector Joining Wire Harness and Wire Harness CODE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) IC1, IC2 FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL) ENGINE ROOM MAIN WIRE AND FLOOR WIRE (LEFT KICK PANEL) IE1, IE2 ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) IF1, IF2 FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)
  • Page 37 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points...
  • Page 38 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 DRIVE’S SEAT) BACK DOOR NO . 1 WIRRE AND FLOOR WIRE (LET SIDE PACKAGE TRAY TRIM) BACK DOOR NO.
  • Page 39 ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points...
  • Page 40 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) FLOOR WIRE AND LUGGAGE ROOM WIRE (LEFT QUARTER PANEL CENTER) FLOOR WIRE AND LUGGAGE ROOM WIRE (LUGGAGE COMPARTMENT LEFT)

  • Page 41: 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 ABS ABS Relay Ignition SW...
  • Page 42 Engine Main Relay 7.5A IGN (Coil Side) Ignition Coil (5A–FE) Igniter Injector No. 1 10A TURN Injector No. 2 15A CIG & RADIO Injector No. 3 15A ECU–IG Engine ECU 15A GAUGE Injector No. 4 20A WIPER Engine and ECT (4A–FE) Neutral Start Circuit Opening...
  • Page 43 POWER SOURCE (Current Flow Chart) 168 100 Page Nos. of Related Systems Parts Code or Location CB or Fuse A11 A16 A17 A20 A22 A25 A30 A31 A32 A36 A38 A41 B1 DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG & RADIO TAIL ECU–IG STOP...
  • Page 44 167 82 133 89 B4 B5 B6 C1 C2 : R/B No. 4 (See page...
  • Page 45 POWER SOURCE (Current Flow Chart) 144 150 144 Page Nos. of Related Systems Parts Code or Location D3 D5 D6 D7 D8 D9 D10 D11 D14 CB or Fuse DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG & RADIO TAIL ECU–IG STOP HEAD LH...
  • Page 46 F9 F11 H2 H3 H4 H5 H6 I11 I13 : R/B No. 4 (See page...
  • Page 47 POWER SOURCE (Current Flow Chart) 100 100 133 138 Page Nos. of Related Systems Parts Code or Location CB or Fuse P3 P4 P5 P6 P8 R1 R2 R3 R4 R5 R6 R8 R9 DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG &...
  • Page 48 100 102 98 R11 R12 R12 R12 R12 R13 R13 R13 R20 R21 R24 R25 S1 S7 S8 S9 S11 S12 S14 T2 V1 V2 W1 : R/B No. 4 (See page...
  • Page 49 POWER SOURCE (Current Flow Chart) Page Nos. of Related Systems Parts Code or Location CB or Fuse DEFOGGER WIPER GAUGE 7.5A IGN ECU–B TURN CIG & RADIO TAIL ECU–IG STOP HEAD LH HEAD RH DOME HAZ–HORN FL RDI FAN FL CDS FAN POWER HEATER [LOCATION]...

  • Page 50: Power Source

    POWER SOURCE W/ CRUISE CONTROL AND ABS EX. W/ CRUISE CONTROL AND ABS BATTERY FL MAIN 2. 0L , F10 FUSIBLE LINK ENGINE M RELAY 30A FL R DI FAN TO ABS 30A FL C DS FAN RELAY TAILLIGHT RELAY 15A TAIL 15A STOP 15A ECU–B...
  • Page 51 SERVICE HINTS TAILLIGHT RELAY 1–2 : 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 9–10 : CLOSED WITH IGNITION KEY AT ON OR ST POSITION...

  • Page 52: Starting And Ignition

    STARTING AND IGNITION B–O B–O B–W ( M/T EX. CANADA GT AND ST ) B–W B–W IGNIITON SW (W/ ECT) ( W/O ECT ) , N 2 NEUTRAL START SW STARTER RELAY (A/T) ( M/T ) ( W/ ECT ) ( W/O ECT ) CLUTCH START SW...
  • Page 53 E 7 : 5S–FE E 9 : 4A–FE ( 5S–FE ) B–O B–O CHECK CONNECTOR TO TACHOMETER IG– CHECK IG– CONNECTOR , I 2 IGNITION COIL B–O W–L DISTRIBUTOR IGNITER IGNITER DISTRIBUTOR TACHOMETER NOISE FILTER ( FOR IGNITION ) ( W/ ECT ) (W/O ECT) G–...
  • Page 54 STARTING AND IGNITION SERVICE HINTS IGNITION SW 4–7 : CLOSED WITH IGNITION SW AT ST POSITION 9–10 : CLOSED WITH IGNITION SW AT ON OR ST POSITION CLUTCH START SW 1–2 : CLOSED WITH CLUTCH PEDAL FULLY DEPRESSED STARTER RELAY (4) 2–(4) 4 : CLOSED WITH CLUTCH START SW ON AND IGNITION SW AT ST POSITION STARTER POINTS CLOSED WITH CLUTCH START SW ON AND IGNITION SW AT ST POSITION...
  • Page 56 CHARGING FROM POWER SOURCE SYSTEM FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) ( SEE PAGE 52 ) 7. 5A ECU–IG JUNCTION CONNECTOR CHARGE WARNING LIGHT [COMB. METER] , A16 ALTERNATOR FUSIBLE LINK BOX IC REGULATOR FL MAIN 2. 0L BATTERY...

  • Page 57: Service Hints

    SERVICE HINTS ALTERNATOR A16(A) (A) 1–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) 2–GROUND: 0–4 VOLTS WITH IGNITION SW AT ON POSITION AND ENGINE NOT RUNNING : PARTS LOCATION CODE SEE PAGE...

  • Page 58: System Outline

    ENGINE CONTROL (5S–FE) SYSTEM OUTLINE THE ENGINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE ENGINE, TRANSMISSION, ETC. 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 59: Diagnosis System

    * ISC (IDLE CONTROL) SYSTEM THE ISC SYSTEM (ROTARY SOLENOID TYPE) INCREASES THE RPM AND PROVIDES IDLING STABILITY FOR FAST IDLE–UP WHEN THE ENGINE IS COLD AND WHEN THE IDLE SPEED HAS DROPPED DUE TO ELECTRICAL LOAD, ETC. THE ECU EVALUATES THE SIGNALS FROM EACH SENSOR (INPUT SIGNALS (1, 4 TO 8, 11, 12)), OUTPUTS CURRENT TO TERMINAL TSCO AND ISCC, AND CONTROLS THE ISC VALVE.
  • Page 60 ENGINE CONTROL (5S–FE w/ ECT) B–W B–O FROM POWER SOURCE SYSTEM (SEE PAGE 52) B–Y B–Y B–R 7. 5A IGNITION SW EFI MAI RELAY BATT , E 7 , E 8 ENGINE AND ECT ECU # 20 # 10 INJECTOR B–O B–O B–O...
  • Page 61 B–W B–W B–O B–O B–Y B–Y B–Y B–Y B–Y B–Y FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP GAUGE TAIL J/B NO. 3 DIODE ISC VALVE STOP LIGHT SW B–O FROM DEFOGGER SW , C14 CHECK ENGINE [COMB. METER] JUNCTION CONNECTOR ISCC...
  • Page 62 ENGINE CONTROL (5S–FE w/ ECT) B–W B–O I 5 : USA I 8 : CANADA B–Y B–Y TO TACHOMETER NEUTRAL START SW IGNITION COIL L–B B–O IG– DISTRIBUTOR IGNITER CHECK CONNECTOR G– G– , E 7 , E 8 ENGINE AND ECT ECU FUEL PUMP SPEED SENSOR [COMB.
  • Page 63 DARK GRAY GRAY 11 X BROWN BLACK GREEN GRAY 1 X 3 4 DARK GRAY DARK GRAY DARK GRAY BLACK 8 9 10 11 9 10 11 14 15 16 17 14 X X X X X DARK GRAY GRAY BLACK BLACK BLACK...
  • Page 64 ENGINE CONTROL (5S–FE w/ ECT) SERVICE HINTS ENGINE ECU E 6, E7, E8 VOLTAGE AT ECU WIRING CONNECTORS BATT–E1 : ALWAYS 10.0–14.0 VOLTS +B–E1 : 10–14.0 VOLTS (IGNITION SW AT ON POSITION) +B1–E1 : 10–14.0 VOLTS (IGNITION SW AT ON POSITION) IDL–E2 : 8.0–14.0 VOLTS (IGNITION SW ON AND THROTTLE VALVE OPEN) VC–E2...
  • Page 65 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) 32 (5S–FE) ENGINE WIRE AND COWL WIRE (REAR SIDE OF RIGHT FRONT FENDER) ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL) ENGINE WIRE AND COWL WIRE (UNDER THE ENGINE ECU) COWL WIRE AND A/C NO.
  • Page 66 ENGINE CONTROL (5S–FE w/o ECT) B–W B–O W–B FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) B–Y B–R B–Y 7. 5A IGNITION SW EFI MAIN RELAY B–Y B–Y BATT , E 7 , E 8 ENGINE ECU # 20 # 10 INJECTOR B–O...
  • Page 67 B–W B–W B–O B–O B–O W–B W–B B–Y B–Y B–Y B–Y B–Y B–Y FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP GAUGE TAIL ISC VALVE ( W/ CRUISE CONTROL ) DIODE ( W/O CRUISE CONTROL ) NO. 3 , S10 B–O STOP LIGHT SW...
  • Page 68 ENGINE CONTROL (5S–FE w/o ECT) B–W B–W B–W B–W ( A/T ) B–O B–W ( M/T ) W–B B–Y B–Y TO TACHOMETER NEUTRAL START SW IGNITION COIL B–O IG– CHECK CONNECTOR DISTRIBUTOR IGNITER G– ( A/T ) G– , E 7 , E 8 ENGINE ECU B–W...
  • Page 69 DARK GRAY DARK GRAY 11 X BROWN BLACK GREEN GRAY 1 X 3 4 X X X X 5 6 7 X X DARK GRAY DARK GRAY DARK GRAY BLACK 10 11 12 13 14 15 16 17 18 X 12 13 14 I 7, I 8 DARK GRAY GRAY...
  • Page 70 ENGINE CONTROL (5S–FE w/o ECT) SERVICE HINTS E 6, E 7, E 8 ENGINE ECU VOLTAGE AT ECU WIRING CONNECTORS BATT–E1 : ALWAYS 10.0–14.0 VOLTS +B–E1 : 10.0–14.0 VOLTS (IGNITION SW AT ON POSITION) +B1–E1 : 10.0–14.0 VOLTS (IGNITION SW AT ON POSITION) IDL–E1 : 8.0–14.0 VOLTS (IGNITION SW ON AND THROTTLE VALVE OPEN) PSW–E1...
  • Page 71 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) 32 (5S–FE) ENGINE WIRE AND COWL WIRE (REAR SIDE OF RIGHT FRONT FENDER) ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL) ENGINE WIRE AND COWL WIRE (UNDER THE ENGINE ECU) COWL WIRE AND A/C NO.

  • Page 72: System Outline

    ENGINE CONTROL (4A–FE) SYSTEM OUTLINE THE ENGINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE ENGINE ETC. 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 73 * EGR CUT CONTROL SYSTEM THE EGR CUT CONTROL SYSTEM CONTROLS THE VSV (FOR EGR) BY EVALUATING THE SIGNALS FROM EACH SENSOR INPUT TO THE ECU (INPUT SIGNALS (1, 5, 6, 9)) AND BY SENDING OUTPUT TO TERMINAL EGR OF THE ECU. * A/C CUT CONTROL SYSTEM WHEN THE VEHICLE SUDDENLY ACCELERATES FROM LOW ENGINE SPEED, THIS SYSTEM CUTS OFF AIR CONDITIONER OPERATION FOR A FIXED PERIOD OF TIME IN RESPONSE TO THE VEHICLE SPEED, THROTTLE VALVE OPENING ANGLE AND...
  • Page 74 ENGINE CONTROL (4A–FE) (USA) B–W B–W B–O FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) B–Y B–R B–Y B–Y B–Y 7. 5A IGNITION SW EFI MAIN RELAY ( FOR EGR SYSTEM ) B–Y BATT , E 8 ENGINE ECU # 20 # 10 INJECTOR...
  • Page 75 B–W B–W B–W B–W B–O B–Y B–Y B–Y B–Y B–Y B–Y B–Y B–Y FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) , I 2 GAUGE DISTRIBUTOR J/B NO. 3 IGNITER CHECK E NGINE COMB. M ETER] R–L ( SEALED ) VISC G–...
  • Page 76 ENGINE CONTROL (4A–FE) B–W (USA M/T) B–W B–W B–W B–W ( A/T ) B–Y (CANADA M/T) B–W B–Y B–Y TO TACHOMETER NEUTRAL STARTER START SW RELAY IG– ( A/T ) , E 8 ENGINE ECU CIRCUIT OPENING RELAY ( SEALED ) I 2 : USA SPEED SENSOR I 6 : CANADA...
  • Page 77 DARK GRAY DARK GRAY BROWN X X X GREEN DARK GRAY DARK GRAY X 5 6 7 X X DARK GRAY BLACK DARK GRAY DARK GRAY DARK GRAY 9 10 11 14 15 16 17 18 25 26 21 22 X BLACK I 7, I 8, I 9, I10 GRAY...
  • Page 78 ENGINE CONTROL (4A–FE) SERVICE HINTS E 5, E 8 ENGINE ECU VOLTAGE AT ECU WIRING CONNECTORS BATT–E1 : ALWAYS 10.0–14.0 VOLTS +B–E1 : 10.0–14.0 VOLTS (IGNITION SW AT ON POSITION) +B1–E1 : 10.0–14.0 VOLTS (IGNITION SW AT ON POSITION) IDL–E1 : 8.0–14.0 VOLTS (IGNITION SW ON AND THROTTLE VALVE OPEN) PSW–E1 : 4.0–5.0 VOLTS (IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED)
  • Page 79 : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) 34 (4A–FE) ENGINE WIRE AND COWL WIRE (REAR SIDE OF RIGHT FRONT FENDER) ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL) FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL) ENGINE WIRE AND COWL WIRE (UNDER THE ENGINE ECU) ENGINE WIRE AND COWL WIRE (UNDER THE ENGINE ECU)
  • Page 80 ILLUMINATION TAILLIGHT RELAY TAIL J/B NO. 3 RETRACT CONTROL RHEOSTAT RELAY (FOR CANADA) FUSIBLE LINK [COMB. SW] FL MAIN 2. 0L TAIL J/B NO. 3 HEAD BATTERY J/B NO. 3 JUNCTION A W–B CONNECTOR ( FOR EARTH )
  • Page 81 J/B NO. 3 ( W/ ECT ) (W/O ECT) ( W/ ECT ) ( W/O ECT ) J/B NO. 3...
  • Page 82 ILLUMINATION SERVICE HINTS TAILLIGHT RELAY 1–2 : 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 84 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 85 ( L/B ) (C/P) TAIL AND REAR TAIL AND REAR LICENCE PLATE SIDE MARKER SIDE MARKER LIGHT LIGHT LH LIGHT RH [REAR COMB. LIGHT] [REAR COMB. LIGHT]...
  • Page 86 TAILLIGHT SERVICE HINTS TAILLIGHT RELAY 1–2 : CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 30 (L/B), 31 (C/P) 26 (5S–FE), 27 (4A–FE) 30 (L/B), 31 (C/P)
  • Page 87 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 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE)
  • Page 88 HEADLIGHT (USA) W/ CRUISE CONTROL AND ABS EX. W/ CRUISE CONTROL AND ABS HEADLIGHT HEAD ( LH ) HEAD ( RH ) RELAY 6 2D HEADLIGHT HEADLIGHT R–W R–L FUSIBLE LINK I 1 : I 2 : I 1 : R–Y R–Y I 2 :...
  • Page 89 RETRACT CONTROL RELAY R–Y DOWN DOWN G–Y G–Y G–W G–W RETRACT MOTOR LH RETRACT MOTOR RH W–B...
  • Page 90 FOG LIGHT (USA) W/ CRUISE CONTROL AND ABS EX. W/ CRUISE CONTROL AND ABS FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) HEAD(LH) HEAD(RH) HEADLIGHT HEADLIGHT R–W I 1 : I 2 : R–W FOG LIGHT RELAY [COMB. SW] LIGHT CONTROL SW ”...
  • Page 91 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 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE)

  • Page 92: Stop Light

    STOP LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP (W/ CRUISE CONTROL) (W/O CRUISE CONTROL) , S10 STOP LIGHT SW ( W/ CRUISE CONTROL ) ( W/O CRUISE CONTROL ) JUNCTION CONNECTOR B 7 : L/B ( L/B ) G–W B10 : C/P ( C/P )
  • Page 93 SERVICE HINTS STOP LIGHT SW 1–3: CLOSED WITH BRAKE PEDAL DEPRESSED (W/ CRUISE CONTROL) 1–2: CLOSED WITH BRAKE PEDAL DEPRESSED (W/O CRUISE CONTROL) : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 30 (L/B), 31 (C/P) 30 (L/B), 31 (C/P) 30 (L/B), 31 (C/P) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE...

  • Page 94: Turn Signal And Hazard Warning Light

    TURN SIGNAL AND HAZARD WARNING LIGHT FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) TURN HAZ–HORN HAZARD SW TURN SIGNAL SW [COMB. SW] HAZARD TURN TURN SIGNAL FLASHER G–W JUNCTION CONNECTOR JUNCTION CONNECTOR G–B (L/B) (L/B) ( C/P ) ( C/P ) INDICATOR LIGHTS [COMB.
  • Page 95 SERVICE HINTS T 2 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 96: Interior Light

    INTERIOR LIGHT W/ DOOR LOCK W/O DOOR LOCK FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) DOME JUNCTION CONNECTOR NO. 3 JUNCTION CONNECTOR R–W B 1 : W/ REAR WIPER B 7 : W/O REAR WIPER R–W R–W (L/B) JUNCTION CONNECTOR DOOR COURTESY...
  • Page 97 SERVICE HINTS INTEGRATION RELAY (1B) 11–GROUND : APPROX. 12 VOLTS WITH DOOR CLOSED 0 VOLTS WITH EACH DOOR OPEN DOOR COURTESY SW D10, D11 1–GROUND : CLOSED WITH DOOR OPEN LUGGAGE COMPARTMENT LIGHT SW 1–GROUND : CLOSED WITH LUGGAGE COMPARTMENT DOOR OPEN BACK DOOR COURTESY SW 1–GROUND : CLOSED WITH BACK DOOR OPEN : PARTS LOCATION...

  • Page 98: Light Reminder Buzzer

    LIGHT REMINDER BUZZER FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GAUGE CIG & RADIO TAIL DOME BUZZER INTEGRATION RELAY (FOR LIGHT REMINDER) DOOR COURTESY SW LH JUNCTION CONNECTOR (FOR EARTH)
  • Page 99 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 100: Power Window

    POWER WINDOW FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) POWER (W/O KEY OFF DIODE) R–L 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...
  • Page 101 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 102 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 103 DOOR LOCK...
  • Page 104 DOOR LOCK FROM POWER SOURCE SYSTEM (SEE PAGE 52) 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 L–W UNLOCK...
  • Page 105 DOOR LOCK ECU SECURITY KEY REMINDER L–O L–O L–B L–B L–R L–W W–B W–B...
  • Page 106 DOOR LOCK SYSTEM OUTLINE CURRENT ALWAYS FLOWS TO TERMINAL 8 OF THE DOOR LOCK CONTROL RELAY 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 CONTROL RELAY AND CAUSES THE RELAY TO FUNCTION.
  • Page 107 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 108: Rear Wiper And Washer

    REAR WIPER AND WASHER FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) WIPER WASHER MOTOR REAR WIPER AND WASHER SW [COMB. SW] WASHER 1 WASHER 2 REAR WIPER MOTOR AND RELAY REAR WIPER RELAY REAR WIPER JUNCTION MOTOR CONNECTOR ( FOR EARTH )
  • Page 109 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 TERMINAL 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 110: Front Wiper And Washer

    FRONT WIPER AND WASHER FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 111 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 112 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 113 UNLOCK AND SEAT BELT WARNING...
  • Page 114 UNLOCK AND SEAT BELT WARNING FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) DOME GAUGE R–L J/B NO. 3 , C15 SEAT BELT WARNING LIGHT [COMB. METER] SEAT BELT WARNING RELAY ( INTEGRATION RELAY ) TIMER BUZZER Y–G Y–G JUNCTION CONNECTOR UNLOCK...
  • Page 115 SYSTEM OUTLINE CURRENT ALWAYS FLOWS TO TERMINAL 1 OF THE SEAT BELT WARNING RELAY (INTEGRATION RELAY NO.1) THROUGH DOME FUSE. 1. SEAT BELT WARNING SYSTEM WHEN THE IGNITION SW IS TURN ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 7 OF THE SEAT BELT WARNING RELAY.

  • Page 116: Rear Window Defogger

    REAR WINDOW DEFOGGER FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GAUGE DEFOGGER DEFOGGER RELAY NO. 3 (L/B) ( L/B ) DEFOGGER SW ( C/P ) ( L/B ) , R21 , R23 NOISE FILTER REAR WINDOW (FOR DEFOGGER) REAR WINDOW DEFOGGER DEFOGGER...

  • Page 117: 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 31 (C/P)

  • Page 118: Power Seat

    POWER SEAT FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) POWER GAUGE DIODE JUNCTION ( FOR KEY OFF ) CONNECTOR NO. 3 L–Y R–L R–L R–L ( W/O KEY OFF DIODE ) POWER MAIN RELAY W–B POWER SEAT SW POWER SEAT MOTOR POWER SEAT MOTOR ( FOR LUMBER SUPPORT )
  • Page 119 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 120: Remote Control Mirror

    REMOTE CONTROL MIRROR FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 121 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 122 SUN ROOF FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GAUGE POWER JUNCTION DIODE ( FOR KEY OFF ) CONNECTOR R–L R–L L–Y R–L NO. 3 ( W/O KEY OFF DIODE ) POWER MAIN RELAY W–G W–G SUN ROOF CONTROL RELAY TIMER SUN ROOF MOTOR...

  • Page 123: 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 124 SUN ROOF : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 30 (L/B), 31 (C/P) 30 (L/B), 31 (C/P) 30 (L/B), 31 (C/P) 30 (L/B), 31 (C/P) : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO.
  • Page 125 ECT (ELECTRONIC CONTROLLED TRANSMISSION)
  • Page 126 ECT (ELECTRONIC CONTROLLED TRANSMISSION) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A STOP EFI MAIN STOP LIGHT RELAY B–Y FROM IGNITION SW ’ ST1’ JUNCTION CONNECTOR ISC VALVE ISCC ISCO BATT , E 7 A , E 8 ENGINE AND ECT ECU BR–Y (W/ ABS)
  • Page 127 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GAUGE R–L R–L NO. 3 NORMAL POWER JUNCTION ECT PATTERN SELECT CONNECTOR A/T INDICATOR SW [NEUTRAL START SW] , E 7 , E 8 ENGINE AND ECT ECU GR–L GR–L CHECK CONNECTOR O/D MAIN W–B...
  • Page 128 ECT (ELECTRONIC CONTROLLED TRANSMISSION) SYSTEM OUTLINE PREVIOUS AUTOMATIC TRANSMISSIONS HAVE SELECTED EACH GEAR SHIFT USING MECHANICALLY CONTROLLED THROTTLE HYDRAULIC PRESSURE, GOVERNOR HYDRAULIC PRESSURE AND LOCK–UP HYDRAULIC PRESSURE. THE ECT, HOWEVER, ELECTRICALLY CONTROLS THE LINE PRESSURE AND LOCK–UP PRESSURE ETC., THROUGH THE SOLENOID VALVE. ECT ECU CONTROL OF THE SOLENOID VALVE BASED ON THE INPUT SIGNALS FROM EACH SENSOR MAKES SMOOTH DRIVING POSSIBLE BY SHIFT SELECTION FOR EACH GEAR WHICH IS MOST APPROPRIATE TO THE DRIVING CONDITIONS AT THAT TIME.
  • Page 129 (B)17–(B)14 : UNDER 1 VOLTS (IGNITION SW ON AND STARTING STILL) 4.5–5.5 VOLTS REPEAT (IGNITION SW ON AND VEHICLE MOVING) (B)22–(B)14 : 10–14 VOLTS (IGNITION SW ON AND NEUTRAL START SW P OR N POSITION) UNDER 1 VOLTS (IGNITION SW ON AND EX. NEUTRAL START SW P OR N POSITION (B)18–(B)14 : 10–14 VOLTS (IGNITION SW ON AND NEUTRAL START SW 2 POSITION) UNDER 1 VOLTS (IGNITION SW ON AND EX.
  • Page 130 OVERDRIVE FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GAUGE J/B NO. 3 R–L O/D OFF INDICATOR [COMB. METER] SOLENOID DIODE ( FOR O/D SYSTEM ) (4A–FE) (4A–FE) Y–B Y–B GR–L GR–L O/D MAIN DIODE ( FOR O/D SYSTEM ) GR–L (5S–FE) J/B NO.
  • Page 131 SERVICE HINTS O/D MAIN SW 1–3 : CLOSED WITH O/D MAIN SW OFF, OPEN WITH O/D MAIN SW ON : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 26 (5S–FE) 26 (5S–FE), 27 (4A–FE) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

  • Page 132: Shift Lock

    SHIFT LOCK FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) CIG & RADIO ECU–IG STOP (W/ CRUISE CONTROL) ( W/O CRUISE CONTROL ) J/B N0. 3 JUNCTION , S10 CONNECTOR STOP LIGHT SW ( W/ CRUISE CONTROL ) (W/O CRUISE CONTROL) JUNCTION CONNECTOR SHIFT LOCK ECU...
  • Page 133 SYSTEM OUTLINE WHEN THE IGNITION SW IS TURNED TO ACC POSITION THE CURRENT FROM THE CIG FUSE FLOWS TO TERMINAL 1 OF THE SHIFT LOCK ECU. IN THE ON POSITION, THE CURRENT FROM THE ECU–IG FUSE FLOWS TO TERMINAL 3 OF THE ECU. 1.
  • Page 134 CRUISE CONTROL (MOTOR TYPE) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) ECU–IG GAUGE CHECK CONNECTOR NO. 3 B–R JUNCTION CONNECTOR , C13 CRUISE CONTROL INDICATOR LIGHT [COMB. METER] , C20 CRUISE CONTROL ECU N&C ( M/T ) CRUISE CONTROL CLUTCH SW SPEED SENSOR ( FOR CRUISE CONTROL...
  • Page 135 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) STOP ENGINE AND ECT ECU SOL2 , C20 CRUISE CONTROL ECU STP– STP+ JUNCTION CONNECTOR R–G STOP LIGHT JUNCTION CONNECTOR PARKING BRAKE SW TO STOP LIGHT CRUISE CONTROL ACTUATOR...
  • Page 136 CRUISE CONTROL (MOTOR TYPE) 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 137: Service Hints

    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 138 CRUISE CONTROL (MOTOR TYPE) : 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. 1 (LEFT KICK PANEL) COWL WIRE AND J/B NO.3 (BEHIND COMBINATION METER) : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS CODE...
  • Page 140 CRUISE CONTROL (VACUUM TYPE) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) ECU–IG GAUGE CHECK CONNECTOR NO. 3 B–R JUNCTION CONNECTOR , C13 CRUISE CONTROL INDICATOR LIGHT [COMB. METER] CRUISE CONTROL ECU N&C I 4 : EX. CANADA GT AND ST I 2 : CANADA GT AND ST ( M/T ) S 1, S 3...
  • Page 141 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) , E 8 STOP ENGINE AND ECT ECU SOL2 TO O/D SOLENOID DIODE ( FOR O/D SYSTEM ) CRUISE CONTROL ECU ACT– STP– STP+ JUNCTION CONNECTOR R–G STOP LIGHT CRUISE CONTROL STOP SW JUNCTION CONNECTOR...
  • Page 142 CRUISE CONTROL (VACUUM TYPE) SYSTEM OUTLINE CURRENT IS APPLIED AT ALL TIMES THROUGH STOP FUSE TO TERMINAL 18 OF THE CRUISE CONTROL ECU AND TERMINAL 1 OF THE STOP LIGHT SW. WITH THE IGNITION SW TURNED TO ON, THE CURRENT FLOWS THROUGH GAUGE FUSE TO TERMINAL (A) 7 OF THE COMBINATION METER AND THE CURRENT THROUGH ECU–IG FUSE FLOWS TO TERMINAL 12 OF THE CRUISE CONTROL ECU.
  • Page 143 SERVICE HINTS CRUISE CONTROL ECU (DISCONNECT THE ECU CONNECTOR) 15–GROUND : ALWAYS CONTINUITY 4–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 8–GROUND : 1 PULSE EACH 40CM, 15.75IN. (DRIVE VEHICLE SLOWLY) 6–GROUND : CONTINUITY WITH MAIN SW ON 18–GROUND : ALWAYS APPROX.
  • Page 144 CRUISE CONTROL (VACUUM TYPE)
  • Page 145 HORN FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 146 ABS (ANTI–LOCK BRAKE SYSTEM) FL MAIN 2. 0L 60A FL ABS BATTERY , F10 FUSIBLE LINK BOX W–L , A10 ABS CHECK CONNECTOR , A12 , A 8 ABS RELAY ABS ACTUATOR W–G W–R R– , A38 ABS ECU FL– FR–...
  • Page 147 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GAUGE ECU–IG ECU–B STOP NO. 3 ( W/ CRUISE CONTROL ) ( W/O CRUISE CONTROL ) , S10 STOP LIGHT ( W/ CRUISE CONTROL ) ( W/O CRUISE CONTROL ) , C14 WARNING LIGHT [COMB.

  • Page 148: 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 149 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 26 (5S–FE) 30 (L/B) 26 (5S–FE) 26 (5S–FE) 30 (L/B) 26 (5S–FE) 26 (5S–FE) 30 (L/B) 26 (5S–FE) 30 (L/B) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR...
  • Page 150 ABS (ANTI–LOCK BRAKE SYSTEM)

  • Page 151: 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 152 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 153 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 154 SRS AIRBAG FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 155 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 156 SRS AIRBAG...

  • Page 157: Cigarette Lighter And Clock

    CIGARETTE LIGHTER AND CLOCK FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) CIG & RADIO TAIL DOME J/B NO. 3 NO. 3 TO RETRACT CONTROL R ELAY, A/C CONTROL ASSEMB (CANAD CIGARETTE LIGHTER CLOCK W–B L–Y J/B NO. 3 W–B JUNCTION CONNECTOR...

  • Page 158: Auto Antenna

    AUTO ANTENNA FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 159 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 160 RADIO AND PLAYER (w/ CD PLAYER) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) W/ CRUISE CONTROL AND ABS EX. W/ CRUISE CONTROL AND ABS GT AND ST ( CANADA ) EX. GT AND ST ( CANADA ) GT AND ST ( USA ) DOME REAR TWEETER REAR TWEETER...
  • Page 161 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 162 RADIO AND PLAYER (w/ CD PLAYER) SERVICE HINTS POWER AMPLIFIER S 8 (B), S 9 (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 163 RADIO AND PLAYER (w/o CD PLAYER) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) GT–S GT AND ST CANADA GT AND ST CANADA EX. GT AND ST USA GT AND ST DOME RADIO & CIG NO. 3 , R 7 RADIO AND PLAYER I 2 :...
  • Page 164 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 165: Combination Meter

    COMBINATION METER FROM POWER SOURCE SYSTEM (SEE PAGE 52) 7. 5A DOME TAIL ECU–B ( W/ ECT ) (W/O ECT) NEUTRAL START SW ( W/ ECT ) (W/O ECT) NO. 3 NO. 3 BULB CHECK CIRCUIT , C14 , C15 COMBINATION METER JUNCTION CONNECTOR...
  • Page 166 FROM POWER SOURCE SYSTEM (SEE PAGE 52) GAUGE J/B NO. 3 , C14 , C15 COMBINATION METER FUEL SENDER (5S–FE) ( 4A–FE ) , I 1 IGNITER OIL PRESSURE WATER TEMP. SENDER ( W/ CRUISE CONTROL ) (W/O CRUISE CONTROL)
  • Page 167 COMBINATION METER SERVICE HINTS 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 FUEL SENDER 3–4 : APPROX.
  • Page 169 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) R–L R–L R–L HEATER GAUGE , A33 , A34 AUTO A/C AMPLIFIER R–L R–L R–L NO. 3 HEATER RELAY JUNCTION...
  • Page 170 R–L R–L R–L R–L R–L R–L , A33 , A34 AUTO A/C AMPLIFIER TEST 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 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 171 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 172 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 173 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 52) 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 174 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 175 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 176 * 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 177: 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 178 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) R/B NO. 4 (RIGHT KICK PANEL) R/B NO.
  • Page 179 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW)
  • Page 180 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW)
  • Page 181 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A FL RDI FAN FL CDS FAN GAUGE B–O R–L R–L A/C MAGNET CLUTCH RELAY L–Y B–W , E 7...
  • Page 182 R–L , A34 AUTO A/C AMPLIFIER R–L R–L NO. 3 Y–R B–R Y–R R–L R–L V–R V–R R–Y R–Y V–G V–G Y–R Y–G A/C AMPLIFIER W–R W–R R–Y V–G FROM IGNITER W–B W–B...
  • Page 183 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) R–L R–L , A34 AUTO A/C AMPLIFIER TEST BAUTO R–L W–B A/C SYSTEM AMPLIFIER B–W L–W B–R G–W R–L R–L V–R V–R R–Y R–Y V–G V–G L–W AUTO...
  • Page 184 R–L R–L , A34 AUTO A/C AMPLIFIER FOOT R–L RECIRC/FRESH W–B CONTROL SERVO MOTOR R–L R–L R–L W–B L–O B–Y B–W B–W L–W L–W G–W G–W R–L R–L V–R R–Y R–Y W–B V–G W–B W–B FOOT FOOT/DEF FRESH/RECIRC , A19 , A20 A/C CONTROL ASSEMBLY W–B...
  • Page 185 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) R–L R–L , A34 AUTO A/C AMPLIFIER R–L R–L R–L R–L W–B L–O JUNCTION B–Y CONNECTOR ( FOR HEATER ) B–W B–W B–W B–W L–W G–W R–L L–W...
  • Page 186 FROM POWER SOURCE SYSTEM (SEE PAGE 52) R–L CIG & HEATER RADIO , A34 AUTO A/C AMPLIFIER NO. 3 R–L R–L R–L R–L R–L R–L JUNCTION CONNECTOR B–W R–W B–W L–W L–W JUNCTION CONNECTOR ( FOR HEATER ) W–B W–B ( 5S–FE ) ( 4A–FE ) , B 4...
  • Page 187 RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR DIAL 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 188 * AUTO FUNCTION WHEN THE AUTO SW (A/C CONTROL ASSEMBLY) IS TURNED ON, SIGNALS ARE INPUT TO TERMINAL BSW OF A/C AUTO AMPLIFIER AND TERMINAL B AUTO OF A/C AUTO AMPLIFIER CONTROLLING THE CURRENT FLOW FROM TERMINAL BLW OF THE A/C AUTO AMPLIFIER TO TERMINAL 3 OF POWER TRANSISTOR TERMINAL 2 GROUND, THE A/C AUTO AMPLIFIER CONTROLS THE...

  • Page 189: Air Conditioner Operation

    RADIATOR FAN AND AIR CONDITIONER (AUTOMATIC AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) 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 THERMISTOR, COOLANT TEMPERATURE FROM THE WATER TEMP. SENSOR, AND THE LOCK SIGNAL FM THE A/C COMPRESSOR, ETC.
  • Page 190 : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) 26 (5S–FE), 27 (4A–FE) : RELAY BLOCKS...
  • Page 191 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 192 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 193 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 194 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 W–B W–B W–B RECIRC/FRESH NO. 3 , A20 A/C CONTROL ASSEMBLY JUNCTION CONNECTOR...
  • Page 195 RADIATOR FAN AND AIR CONDITIONER (MANUAL AIR CONDITIONER, FOR PUSH TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 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 CONDEN...
  • Page 197 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 198 * 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, 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 199 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 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE) 26 (5S–FE)
  • Page 200 RADIATOR FAN AND AIR CONDITIONER (MANUAL FAN AND AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) 7. 5A FL RDI FAN FL CDS FAN GAUGE B–O R–L R–L A/C MAGNET CLUTCH RELAY B–W Y–R...
  • Page 201 FROM POWER SOURCE SYSTEM ( SEE PAGE 52 ) R–L ( 5S–FE ) HEATER (4A–FE) , B 4 BLOWER MOTOR ( 5S–FE ) (4A–FE) HEATER RELAY R–L B–W V–R R–L B–W L–W R–L R–L R–L V–R Y–R R–Y V–G V–G FROM IGNITER W–B W–B...
  • Page 202 RADIATOR FAN AND AIR CONDITIONER (MANUAL FAN AND AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) AIR VENT MODE CONTROL SERVO MOTOR FOOT/DEF FOOT BI–LEVEL RECIRC/FRESH FACE CONTROL SERVO MOTOR R–L R–L W–B V–R R–Y V–G W–B W–B W–B W–B B–Y R–Y...
  • Page 203 W–B W–B W–B W–B W–B W–B I 2 : USA I 3 : CANADA NO. 3 JUNCTION CONNECTOR (FOR EARTH) W–B...
  • Page 204 RADIATOR FAN AND AIR CONDITIONER (MANUAL FAN AND AIR CONDITIONER, FOR DIAL 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 205 3. OPERATION OF RECIRC/FRESH CONTROL SERVO MOTOR (SWITCHING FROM FRESH TO RECIRC) WITH IGNITION SW TURNED ON, THE CURRENT FLOWS FROM GAUGE FUSE TO TERMINAL 1 OF RECIRC/FRESH CONTROL SERVO MOTOR. WHEN THE RECIRC/FRESH SW IS SWITCHED TO THE RECIRC SIDE, TO CURRENT FLOWS FROM TERMINAL 1 OF RECIRC/FRESH CONTROL SERVO MOTOR TERMINAL 2 TERMINAL A7 OF RECIRC/FRESH CONTROL SERVO MOTOR...
  • Page 206 RADIATOR FAN AND AIR CONDITIONER (MANUAL FAN AND AIR CONDITIONER, FOR DIAL TYPE OF BLOWER CONTROL SW) SERVICE HINTS A/C MAGNET CLUTCH 4–GROUND : APPROX. 3.7 W A/C PRESSURE SW (192 PSI, 1323 KPA) 3–2 : OPEN ABOVE APPROX. 13.5 KG/CM (142 PSI, 980 KPA) CLOSED BELOW APPROX.
  • Page 207 : GROUND POINTS CODE SEE PAGE GROUND POINTS LOCATION 32 (5S–FE) FRONT RIGHT FENDER FRONT RIGHT FENDER 34 (4A–FE) 32 (5S–FE) FRONT LEFT FENDER FRONT LEFT FENDER 34 (4A–FE) LEFT KICK PANEL R/B NO. 4 SET BOLT : SPLICE POINTS CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS...

  • Page 208: Ground Point

    GROUND POINT W–B W–B W–B WATER TEMP. SW ENGINE ECU (NSW) (FOR FAN CONTROL) ( 5S–FE ) ( M/T ) W–B NOISE FILTER W–B A/C CONDENSER FAN EFI MAIN RELAY RELAY NO. 2 W–B A/C CONDENSER FAN ENGINE MAIN RELAY RELAY NO.
  • Page 209 CANADA GT AND ST EX. CANADA GT AND ST W–B STEREO COMPONENT I 5 : CANADA GT–S AMPLIFIER ( W/ CD PLAYER ) I 8 : EX CANADA GT–S W–B RADIO AND PLAYER (W/O CD PLAYER) W–B DOOR LOCK ECU I 5 : USA GT–S I 8 : CANADA GT–S W–B...
  • Page 210 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 ( PUSH TYPE A/C, DIAL TYPE MANUAL A/C ) W–B W–B W–B...
  • Page 211 W–B W–B W–B (GND) FUEL PUMP ABS ECU W–B W–B W–B ( GND ) REAR COMB. LIGHT LH W–B W–B BUCKLE SW AUTO ANTENNA CONTROL ( W/O POWER SEAT ) RELAY AND MOTOR W–B W–B W–B W–B POWER SEAT SW LICENCE PLATE LIGHT W–B REAR COMB.
  • Page 212 GROUND POINT : 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...
  • Page 213 : SPLICE POINTS CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS CODE SEE PAGE WIRE HARNESS WITH SPLICE POINTS 32 (5S–FE) A/C NO. 2 WIRE 34 (4A–FE) A/C NO. 1 WIRE 32 (5S–FE) 38 (L/B) FRONT DOOR LH WIRE FRONT DOOR LH WIRE 34 (4A–FE) 40 (C/P) ENGINE ROOM MAIN WIRE...

This manual is also suitable for:

St184 seriesCelica 1990 (fwd)Celica 1990

Table of Contents