Toyota COROLLA2004 Electrical Wiring Diagram
  1. Manuals
  2. Brands
  3. Toyota Manuals
  4. Automobile
  5. COROLLA2004
  6. Electrical wiring diagram

Toyota COROLLA2004 Electrical Wiring Diagram

Hide thumbs
Table of Contents

Advertisement

Quick Links

ELECTRICAL WIRING DIAGRAM
INTRODUCTION
HOW TO USE THIS MANUAL
TROUBLESHOOTING
ABBREVIATIONS
GLOSSARY OF TERMS AND SYMBOLS
RELAY LOCATIONS
ELECTRICAL WIRING ROUTING
SYSTEM CIRCUITS
GROUND POINT
POWER SOURCE (Current Flow Chart)
CONNECTOR LIST
PART NUMBER OF CONNECTORS
OVERALL ELECTRICAL WIRING DIAGRAM
E2003
All rights reserved. This book may not be
reproduced or copied, in whole or in part, without
the written permission of Toyota Motor
Corporation.
2004 COROLLA
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
2004 COROLLA (EWD533U)
Section Code
A
B
C
D
. . . .
E
F
. . . . . . . . . . .
G
H
I
. . . . .
J
K
. . . . . . . . .
L
.
M
Page
. . . .
2
. . . .
3
. . . .
12
. . . .
17
. . . .
18
. . . .
20
. . . .
32
. . . .
47
. . . .
194
. . . .
198
. . . .
204
. . . .
210
. . . .
214
1

Advertisement

Table of Contents
loading

Related Manuals for Toyota COROLLA2004

Summary of Contents for Toyota COROLLA2004

  • Page 1 ..OVERALL ELECTRICAL WIRING DIAGRAM ..E2003 All rights reserved. This book may not be reproduced or copied, in whole or in part, without the written permission of Toyota Motor Corporation. 2004 COROLLA (EWD533U)
  • Page 2 A INTRODUCTION This manual consists of the following 13 sections: Section Description INDEX Index of the contents of this manual. INTRODUCTION Brief explanation of each section. HOW TO USE THIS Instructions on how to use this manual. 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 B This manual provides information on the electrical circuits installed on vehicles by dividing them into a circuit for each system. The actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point.
  • Page 4 B HOW TO USE THIS MANUAL ∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION. Stop Light From Power Source System (See Page 66) 7.5A STOP GAUGE Stop Light SW Combination Meter...
  • Page 5 [A] : System Title [H] : Indicates the wiring color. Wire colors are indicated by an alphabetical code. [B] : Indicates a Relay Block. No shading is used and only the Relay Block No. is shown to distinguish it B = Black W = White BR = Brown from the J/B...
  • Page 6 B HOW TO USE THIS MANUAL System Outline Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW. When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flows through the rear lights warning light to TERMINAL 4 of the light failure sensor.
  • Page 7 [N] : Explains the system outline. [O] : Indicates values or explains the function for reference during troubleshooting. [P] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit. Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual. ∗...
  • Page 8 B HOW TO USE THIS MANUAL 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.
  • Page 9 The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers) transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each system are explained. Since all System Circuit diagrams start from the power source, the power source system must be fully understood.

  • Page 10: Connector List

    B HOW TO USE THIS MANUAL K CONNECTOR LIST Dark Gray Gray Black A B B A A B C C C 6 7 8 Dark Gray A B B A A B C C C Gray Black 1 2 3 6 7 8 9 101112 3 4 5 6 8 Gray...
  • Page 11 Door Key Lock and Unlock SW RH [A] : Part Code [B] : Part Name [C] : Part Number Toyota Part Number are indicated. Not all of the above part numbers of the connector are established for the supply. 2004 COROLLA (EWD533U)
  • Page 12 C TROUBLESHOOTING VOLTAGE CHECK To Ignition SW IG Terminal (a) Establish conditions in which voltage is present at the check point. Example: [A] – Ignition SW on Fuse [B] – Ignition SW and SW 1 on [C] – Ignition SW, SW 1 and Relay on (SW 2 off) (b) Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal, and the positive lead to the connector or component terminal.
  • Page 13 FINDING A SHORT CIRCUIT To Ignition SW IG Terminal (a) Remove the blown fuse and disconnect all loads of the fuse. (b) Connect a test light in place of the fuse. (c) Establish conditions in which the test light comes on. Example: Test Light Fuse Case...
  • Page 14 C TROUBLESHOOTING HOW TO REPLACE TERMINAL Reference: (with terminal retainer or secondary locking device) 1. PREPARE THE SPECIAL TOOL HINT : To remove the terminal from the connector, please construct and use the special tool or like object shown on the left.
  • Page 15 Tool For Waterproof Type Connector Example: Terminal (Case 1) Tool Retainer HINT : Terminal retainer color is different according to connector body. Example: Terminal Retainer : Connector Body Black or White : Gray Black or White : Dark Gray Gray or White : Black Tool Access Hole...
  • Page 16 C TROUBLESHOOTING Push the terminal retainer down to the temporary lock position. Retainer at Full Lock Position Retainer at Temporary Lock Position [Male] [Female] (c) Release the locking lug from terminal and pull the terminal out Locking Lug from rear. Tool 4.
  • Page 17 Supplemental Restraint System Switch TEMP. Temperature TVIP TOYOTA Vehicle Intrusion Protection Vacuum Switching Valve Variable Valve Timing With Without ∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being abbreviations.
  • Page 18 E GLOSSARY OF TERMS AND SYMBOLS GROUND BATTERY The point at which wiring attaches to Stores chemical energy and the Body, thereby providing a return converts it into electrical energy. path for an electrical circuit; without a Provides DC current for the auto’s ground, current cannot flow.
  • Page 19 SPEAKER RELAY An electromechanical device which Basically, an electrically operated creates sound waves from current 1. NORMALLY switch which may be normally flow. CLOSED closed (1) or open (2). Current flow through a small coil creates a magnetic field which either opens or closes an attached switch.

  • Page 20: Engine Compartment

    F RELAY LOCATIONS [Engine Compartment] [Body] 2004 COROLLA (EWD533U)

  • Page 21: Instrument Panel

    [Instrument Panel] 2004 COROLLA (EWD533U)
  • Page 22 F RELAY LOCATIONS : Engine Room R/B Engine Compartment Left (See Page 20) Engine Compartment Left (See Page 20) : Engine Room J/B 2004 COROLLA (EWD533U)
  • Page 23 Memo 2004 COROLLA (EWD533U)
  • Page 24 F RELAY LOCATIONS : Instrument Panel J/B Lower Finish Panel (See Page 21) 2004 COROLLA (EWD533U)
  • Page 25 2004 COROLLA (EWD533U)
  • Page 26 F RELAY LOCATIONS [Instrument Panel J/B Inner Circuit] 2004 COROLLA (EWD533U)
  • Page 27 2004 COROLLA (EWD533U)
  • Page 28 F RELAY LOCATIONS : RH R/B Right Side of the Instrument Panel Reinforcement Right Side of the Instrument Panel Reinforcement (See Page 21) : RH J/B 2004 COROLLA (EWD533U)
  • Page 29 [RH J/B Inner Circuit] 2004 COROLLA (EWD533U)
  • Page 30 F RELAY LOCATIONS : Center J/B Behind the Combination Meter (See Page 21) 2004 COROLLA (EWD533U)
  • Page 31 [Center J/B Inner Circuit] 2004 COROLLA (EWD533U)
  • Page 32 G ELECTRICAL WIRING ROUTING Position of Parts in Engine Compartment A 1 A/C Magnetic Clutch F 1 Front Fog Light LH A 2 A/T Shift Lever Position SW F 2 Front Fog Light RH Back–Up Light SW F 3 Front Parking Light LH Park/Neutral Position SW Front Turn Signal Light LH A 3 ABS Speed Sensor Front LH...
  • Page 33 Position of Parts in Engine Compartment 1 Idle Air Control Valve P 1 Power Steering Oil Pressure SW 2 Ignition Coil and Igniter No.1 P 2 Pressure SW 3 Ignition Coil and Igniter No.2 4 Ignition Coil and Igniter No.3 R 1 Radiator Fan Motor 5 Ignition Coil and Igniter No.4 R 2 Radiator Fan Resistor...
  • Page 34 G ELECTRICAL WIRING ROUTING Position of Parts in Instrument Panel A 8 A/C SW C 5 Cigarette Lighter Air Inlet Control SW Power Outlet (Front) Defroster Mode Detection SW C 6 Cigarette Lighter Illumination A 10 A/T Shift Lever Illumination C 7 Clock O/D Main SW C 8 Clutch Start SW...
  • Page 35 Position of Parts in Instrument Panel F 7 Front Passenger Seat Belt Warning Light R 3 Radio and Player R 4 Radio and Player G 3 Glass Breakage Sensor ECU R 5 Rear Window Defogger SW R 6 Remote Control Mirror SW H 7 Hazard SW R 7 Rheostat H 8 Heated Oxygen Sensor (Bank 1 Sensor 2)
  • Page 36 G ELECTRICAL WIRING ROUTING Position of Parts in Body A 19 ABS Speed Sensor Rear LH F 8 Front Door Speaker LH A 20 ABS Speed Sensor Rear RH F 9 Front Door Speaker RH F 10 Fuel Pump D 3 Door Control Receiver Fuel Sender D 4 Door Courtesy SW Front LH D 5 Door Courtesy SW Front RH...
  • Page 37 Position of Parts in Body M 2 Moon Roof Control Relay and SW R 9 Rear Combination Light LH Personal Light R10 Rear Combination Light LH M 3 Moon Roof Motor and Limit SW R 11 Rear Combination Light RH R12 Rear Combination Light RH N 2 Noise Filter (Rear Window Defogger) R13 Rear Speaker LH...
  • Page 38 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points 2004 COROLLA (EWD533U)
  • Page 39 Connector Joining Wire Harness and Wire Harness 1 2 3 4 5 5 4 3 2 1 6 7 8 9 10 10 9 8 7 6 Code Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) 2004 COROLLA (EWD533U)
  • Page 40 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points 2004 COROLLA (EWD533U)
  • Page 41 Connector Joining Wire Harness and Wire Harness Code Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) Engine Room Main Wire and Floor Wire (Cowl Side Panel LH) Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) 2004 COROLLA (EWD533U)
  • Page 42 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Splice Points 2004 COROLLA (EWD533U)
  • Page 43 Connector Joining Wire Harness and Wire Harness Code Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Floor Wire (Left Kick Panel) Instrument Panel Wire and Floor Wire (Left Kick Panel) Instrument Panel Wire and Instrument Panel No.4 Wire (Behind the Combination Meter) Console Box Wire and Instrument Panel Wire (Under the Instrument Panel Center) Instrument Panel Wire and Instrument Panel No.3 Wire (Front Side of the Parking Brake Lever) Instrument Panel Wire and A/C Sub Wire (Left Upper Side of the Blower Unit)
  • Page 44 G ELECTRICAL WIRING ROUTING : Location of Connector Joining Wire Harness and Wire Harness : Location of Ground Points : Location of Splice Points 2004 COROLLA (EWD533U)
  • Page 45 Connector Joining Wire Harness and Wire Harness Gray 4 5 6 7 8 4 5 6 7 8 8 7 6 5 4 8 7 6 5 4 Code Joining Wire Harness and Wire Harness (Connector Location) Rear Door LH Wire and Floor Wire (Left Center Pillar) Rear Door RH Wire and Instrument Panel Wire (Right Center Pillar) Skid Control Sensor Wire LH and Floor Wire (Quarter Wheel House LH) Skid Control Sensor Wire RH and Floor Wire (Quarter Wheel House RH)
  • Page 46 Memo 2004 COROLLA (EWD533U)

  • Page 47: Table Of Contents

    SYSTEM CIRCUITS H 2004 COROLLA ELECTRICAL WIRING DIAGRAM SYSTEM CIRCUITS Page ABS ..............Air Conditioning .

  • Page 48: Power Source

    Power Source B–G Generator 30A ABS NO. 1 30A POWER 40A ABS NO. 2 B–W 25A AM1 30A RDI FAN 7. 5A OBD 10A ECU–B 15A FOG 15A P/POINT 15A STOP 100A ALT 15A TAIL 5A ALT–S 25A DOOR R–W 15A EFI B–R B–R...
  • Page 49 10A M–HTR/DEF I–UP 30A DEFOG DEF Relay HTR Relay R–W L–W B–W 40A HEATER L–R 15A CIG B–Y Noise Filter B–W 10A A/C Ignition SW 10A GAUGE 10A ECU–IG IG1 Relay 15A WASHER 25A WIPER R–W 10A HEAD LH LWR R–B 10A HEAD RH LWR R–W...
  • Page 50 Power Source Service Hints HEAD Relay 3–5 : Closed with the light control SW at Head position or the dimmer SW at Flash position : Closed with the engine running and the parking brake lever is released (Parking brake SW off) I10 Ignition SW 1–3 : Closed with the ignition SW at ACC or ON position 1–2 : Closed with the ignition SW at ON or ST position...
  • Page 51 Memo 2004 COROLLA (EWD533U)

  • Page 52: Ignition

    Starting and Ignition B–W B–W Ignition SW ( A/T ) Relay ( A/T ) B–W B–R (*1) (*1) (* 1) MAIN (*1) (* 1) ( * 2 ) ( *2 ) FL MAIN 2. 0L S 2 ( A ) , S 3 ( B ) Starter B–R Battery...
  • Page 53 * 1 : w/ TVIP System * 2 : w/o TVIP System B–W B–W B–W B–W Ignition Coil and Ignition Coil and Ignition Coil and Ignition Coil and Igniter No. 1 Igniter No. 2 Igniter No. 3 Igniter No. 4 W–B W–B W–B...
  • Page 54 Starting and Ignition Service Hints I10 Ignition SW 5–4 : Closed with the ignition SW at ST position 5–6 : Closed with the ignition SW at ON or ST position S2 (A), S3 (B) Starter Points closed with the shift lever at P or N position and the ignition SW at ST position (A/T) Points closed with the clutch pedal depressed and the ignition SW at ST position (M/T) : Parts Location Code...
  • Page 55 Memo 2004 COROLLA (EWD533U)

  • Page 56: Charging

    Charging B–G B–W From Power Source System (See Page 48) GAUGE Ignition SW J 4(A), J 5(B) Junction Connector B–G G 1(A), G 2(B) Generator FL MAIN 2. 0L Battery IC REGULATOR 2004 COROLLA (EWD533U)
  • Page 57 Service Hints G1 (A) Generator (A) 3–Ground : 13.2–14.0 volts with the engine running at 5000 rpm and 115°C (239°F) (A) 1–Ground : 0–4 volts with the ignition SW at ON position and the engine not running : Parts Location Code See Page Code...

  • Page 58: Engine Control

    Engine Control B–O B–W B–W B–W B–W Ignition SW R–W R–W (A/T) (A/T) FL MAIN 2. 0L ( M/T ) G–R Battery 2004 COROLLA (EWD533U)
  • Page 59 B–O B–O B–W B–W W–B W–B B–W B–W B–W R–W Y–G L–Y (A/T) J 2(A), J 3(B) Junction Connector BATT IGT1 IGT2 IGT3 IGT4 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module DUTY VISC (A/T) ( M/T ) G–R W–B 2004 COROLLA (EWD533U)
  • Page 60 Engine Control B–O B–O B–W From Power Source System (See Page 48) M–HTR/ DEF I–UP B–W B–W # 30 # 40 OCV+ OCV– ELS2 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module Junction Connector 2004 COROLLA (EWD533U)
  • Page 61 B–O B–O From Power Source System (See Page 48) TAIL STOP G–W G–W (USA) (USA) GSW2 Tail Head Combination SW ( Canada ) F/PS IDLO E 3 ( A ) , E 4 ( B ) , E 5 ( C ) , E 6 ( D ) Engine Control Module PTNK 2004 COROLLA (EWD533U)
  • Page 62 Engine Control B–O B–O * 1 : Shielded (* 1) ( * 1 ) 31 C 27 A ACMG ACLD A/CS NE– G22+ HT1A OX1A HT1B OX1B E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module (* 1) 2004 COROLLA (EWD533U)
  • Page 63 B–O B–O From Power Source System (See Page 48) Data Link Connector 3 7. 5A WFSE (* 1) ( * 1 ) E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module WFSE KNK1 EKNK TACH THWO R–Y R–Y Y–R V–W 2004 COROLLA (EWD533U)
  • Page 64 Engine Control From Power Source System ( See Page 48 ) B–O GAUGE R–W R–Y Y–R V–W Vehicle Speed Sensor ( Combination Meter ) Skid Control ECU with Actuator 2004 COROLLA (EWD533U)
  • Page 65 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) Engine coolant temp. signal system The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance which varies according to the engine coolant temp.
  • Page 66 Engine Control 2. Control System ∗ SFI system The SFI system monitors the engine conditions through the signals, which are input from each sensor to the engine control module. Based on this data and the program memorized in the engine control module, the most appropriate fuel injection timing is decided and current is output to TERMINALS #10, #20, #30 and #40 of the engine control module, operating the injectors (to inject fuel).
  • Page 67 Service Hints C/OPN Relay 5–3 : Closed with the starter running and the engine running EFI Relay 5–3 : Closed with the ignition SW at ON or ST position E2 Engine Coolant Temp. Sensor 1–2 : Approx. 15.04 kΩ (–20°C, –4°F) Approx.
  • Page 68 Engine Control : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code See Page...
  • Page 69 : Ground Points Code See Page Ground Points Location Left Side of the Cylinder Head Left Side of the Cylinder Head Front Left Suspension Tower Behind the Combination Meter Right Kick Panel Under the Left Quarter Pillar : Splice Points Code See Page Wire Harness with Splice Points...

  • Page 70: Headlight

    Headlight From Power Source System ( See Page 48 ) L–W R–W Automatic Light Control Sensor CLTB CLTS CLTE L–W Daytime Running Light Relay Tail High Head Flash Combination SW W–B W–B W–B Junction Connector (* 1) 2004 COROLLA (EWD533U)
  • Page 71 L–W L–W R–W R–W R–B From Power Source System ( See Page 48 ) * 1 : USA * 2 : w/ ABS * 3 : w/o ABS * 4 : w/ Fog Light HEAD MAIN Parking Brake SW HEAD Daytime Running Light Relay Relay R–B...
  • Page 72 Headlight From Power Source System ( See Page 48 ) L–W * 1 : USA R–W R–B TAIL R–B G–W (* 1) HEAD LH HEAD RH Combination Meter W–B W–R G–B ( *1 ) W–B W–B 2004 COROLLA (EWD533U)
  • Page 73 System Outline The current is always flowing from the HEAD MAIN fuse to HEAD relay (Coil side) to TERMINAL 6 of the daytime running light relay, from ECU–B fuse to TERMINAL 3 of the daytime running light relay and from the TAIL fuse to TAIL relay (Coil side) to TERMINAL 14 of the daytime running light relay (USA).
  • Page 74 Headlight Service Hints HEAD Relay 1–2 : Closed with the light control SW at Head position or the dimmer SW at Flash position Closed with the engine running and the parking brake lever is released (Parking brake SW off) D2 Daytime Running Light Relay 12–Ground : Approx.
  • Page 75 : Splice Points Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Engine Room Main Wire Engine Room Main Wire 2004 COROLLA (EWD533U)

  • Page 76: Fog Light

    Fog Light From Power Source System ( See Page 48 ) ECU–B GAUGE Relay Daytime Running Light Relay Combination SW Tail High Head Flash Combination SW W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 77 Service Hints FOG Relay 3–5 : Closed with light control SW at Head position, dimmer SW at Low position and fog light SW at On position : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location)

  • Page 78: Turn Signal And Hazard Warning Light

    Turn Signal and Hazard Warning Light From Power Source System ( See Page 48 ) GAUGE HAZARD Turn Signal Flasher Relay G–Y G–B W–B W–B 2004 COROLLA (EWD533U)
  • Page 79 * 1 : w/ Wireless Door Lock * 2 : w/o Wireless Door Lock Turn Signal Flasher Relay 3 3C Combination SW Hazard SW 17 4B 15 4B 21 3A W–B Junction Junction Connector Connector 2004 COROLLA (EWD533U)
  • Page 80 Turn Signal and Hazard Warning Light Service Hints T2 Turn Signal Flasher Relay 1–Ground : Approx. 12 volts with the ignition SW at ON position 7–Ground : Always continuity 4–Ground : Always approx. 12 volts : Parts Location Code See Page Code See Page Code...
  • Page 81 Memo 2004 COROLLA (EWD533U)

  • Page 82: Taillight

    Taillight G–W ( USA ) TAIL Relay TAIL TAIL Daytime Running Light Relay 100A Tail Head Combination SW ( Canada ) FL MAIN 2. 0L Battery W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 83 J 8(A), J 9(B) Junction Connector J 8 ( A ) Junction Connector W–B 2004 COROLLA (EWD533U)
  • Page 84 Taillight Service Hints C12 Combination SW 10–13 : Continuity with the light control SW at Tail or Head position TAIL Relay 5–3 : Closed with the light control SW at Tail or Head position : Parts Location Code See Page Code See Page Code...
  • Page 85 Memo 2004 COROLLA (EWD533U)

  • Page 86: Illumination

    Illumination L–W Combination SW * 1 : USA * 2 : Canada Tail Head G–W (* 2) TAIL TAIL Relay TAIL Daytime Running 100A Light Relay DOME W–B W–B FL MAIN 2. 0L Battery 2004 COROLLA (EWD533U)
  • Page 87 L–W 20 4C Engine Control Module 18 4C Combination Meter TAIL ILL– W–B W–B W–B W–B W–B 19 4B 21 4B 2004 COROLLA (EWD533U)
  • Page 88 Illumination Service Hints C12 Combination SW 10–13 : Continuity with the light control SW at Tail or Head position TAIL Relay 5–3 : Closed with the light control SW at Tail or Head position : Parts Location Code See Page Code See Page Code...
  • Page 89 Memo 2004 COROLLA (EWD533U)

  • Page 90: Interior Light

    Interior Light From Power Source System ( See Page 48 ) DOME GAUGE DOOR I11(A) Integration Relay DCTY PRCTY ( *1 * 5 ) Door Courtesy SW Front LH W–B(*1) B ( *2 * 5 ) 2004 COROLLA (EWD533U)
  • Page 91 * 1 : w/ Moon Roof * 2 : w/o Moon Roof * 3 : w/o Door Lock Control * 4 : w/ Door Lock Control * 5 : w/ Automatic Glare–Resistant EC Mirror * 6 : w/o Automatic Glare–Resistant EC Mirror I11(A) Integration Relay PCTY...
  • Page 92 Interior Light Service Hints D4, D5, D6, D7 Door Courtesy SW Front LH, RH, Rear LH, RH 1–Ground : Closed with the door open L4 Luggage Compartment Light SW 1–Ground : Closed with the luggage compartment door open : Parts Location Code See Page Code...
  • Page 93 Memo 2004 COROLLA (EWD533U)

  • Page 94: Stop Light

    Stop Light From Power Source System ( See Page 48 ) STOP Stop Light SW J 8 ( A ) , J 9 ( B ) Junction Connector High Mounted Stop Light J 8(A) Junction Connector W–B 2004 COROLLA (EWD533U)
  • Page 95 Service Hints S9 Stop Light SW 2–1 : Closed with the 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) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Floor Wire and Instrument Panel J/B (Lower Finish Panel) : Ground Points...

  • Page 96: Back–Up Light

    Back–Up Light From Power Source System ( See Page 48 ) GAUGE Junction Connector Junction Connector R–W (A/T) Back–Up Light SW Back–Up Light SW R–B (A/T) J 8(A), J 9(B) Junction Connector W–B 2004 COROLLA (EWD533U)
  • Page 97 Service Hints A2 Back–Up Light SW (A/T) 2–3 : Closed with the shift lever at R position B1 Back–Up Light SW (M/T) 2–1 : Closed with the shift lever at R position : Parts Location Code See Page Code See Page Code See Page : Junction Block and Wire Harness Connector...

  • Page 98: Wiper And Washer

    Wiper and Washer From Power Source System ( See Page 48 ) * 1 : w/ Intermittent Volume SW * 2 : w/o Intermittent Volume SW * 3 : w/ Washer Continuous * 4 : w/ Intermittent Combination SW MIST WIPER WASHER Front Washer...
  • Page 99 System Outline With the ignition SW turned on, the current flows to TERMINAL 8 of the wiper and washer SW, TERMINAL 2 of the front wiper motor through the WIPER fuse, and the current flows to TERMINAL 2 of the washer motor through the WASHER fuse. 1.
  • Page 100 Wiper and Washer : Ground Points Code See Page Ground Points Location Front Right Fender Behind the Combination Meter 2004 COROLLA (EWD533U)
  • Page 101 Memo 2004 COROLLA (EWD533U)

  • Page 102: Horn

    Horn From Power Source System ( See Page 48 ) * 1 : w/ Wireless Door Lock * 2 : w/o Wireless Door Lock HORN B–W HORN Relay Horn Combination SW 2004 COROLLA (EWD533U)
  • Page 103 Service Hints HORN Relay 5–3 : Closed with the horn SW on. : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page...

  • Page 104: Cigarette Lighter

    Cigarette Lighter From Power Source System ( See Page 48 ) Cigarette Lighter Junction Connector 2004 COROLLA (EWD533U)
  • Page 105 Service Hints C5 Cigarette Lighter 2–Ground : Approx. 12 volts with the ignition SW at ACC or ON position 1–Ground : Always continuity : 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 106: Clock

    Clock From Power Source System ( See Page 48 ) TAIL DOME TAIL Relay TAIL Daytime Running Light Relay Clock Tail Head Combination SW ( Canada ) Junction Junction Connector Connector 2004 COROLLA (EWD533U)
  • Page 107 Service Hints C7 Clock 4–Ground : Approx. 12 volts with the ignition SW at ACC or ON position 1–Ground : Always approx. 12 volts 3–Ground : Approx. 12 volts with the light control SW at Tail or Head position 2–Ground : Always continuity : Parts Location Code See Page...

  • Page 108: Power Outlet

    Power Outlet From Power Source System ( See Page 48 ) P/POINT P–POINT Relay L–Y Power Outlet Power Outlet (Rear) (Front) Junction Connector 2004 COROLLA (EWD533U)
  • Page 109 Service Hints P–POINT Relay 3–5 : Closed with ignition SW at ACC or ON position 1–Ground : Always continuity : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code...

  • Page 110: Remote Control Mirror

    Remote Control Mirror From Power Source System ( See Page 48 ) Remote Control Mirror SW Operation Left Right Down Left/ Right/ Down Select Left Right Left Right Junction Connector 2004 COROLLA (EWD533U)
  • Page 111 Service Hints R6 Remote Control Mirror SW 8–6 : Continuity with the operation SW at Down or Right position 6–7 : Continuity with the operation SW at Up or Left position 8–Ground : Approx. 12 volts with the ignition SW at ACC or ON position 7–Ground : Always continuity : Parts Location Code...

  • Page 112: Automatic Glare–Resistant Ec Mirror With Compass

    Automatic Glare–Resistant EC Mirror with Compass From Power Source System ( See Page 48 ) * 1 : w/ Moon Roof * 2 : w/o Moon Roof GAUGE Inner Mirror Junction Connector 2004 COROLLA (EWD533U)
  • Page 113 Service Hints I12 Inner Mirror 7–Ground : Approx. 12 volts with the ignition SW at ON position 6–Ground : Always continuity : 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 114: Power Window

    Power Window From Power Source System ( See Page 48 ) GAUGE POWER Power Window Master SW Front LH Down Relay W–B Junction Connector Power Window Motor Front LH 2004 COROLLA (EWD533U)
  • Page 115 Power Window Master SW Front RH Rear LH Rear RH Window Lock SW Lock Normal Power Window Motor Power Window Motor Power Window Motor Front RH Rear LH Rear RH 2004 COROLLA (EWD533U)
  • Page 116 Power Window System Outline When the ignition SW is turned on, the current flows through the GAUGE fuse to TERMINAL 1 of the P/W relay to TERMINAL 2 to GROUND. This activates the relay and the current flows through the POWER fuse to TERMINAL 5 of the relay to TERMINAL 3 to TERMINAL B of the power window master SW, TERMINAL 4 of the power window control SW.
  • Page 117 : 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) Floor Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness...

  • Page 118: Door Lock Control

    Door Lock Control From Power Source System ( See Page 48 ) DOOR I11 ( A ) Integration Relay ( * 1 ) ( * 2 ) ( * 1 ) ( * 2 ) W–B W–B W–B W–B Junction Junction Connector Connector...
  • Page 119 * 1 : w/ Power Window * 2 : w/o Power Window LSWD ACTD LSWP I11 ( A ) Integration Relay Door Key Lock and Unlock SW Front LH Door Key Lock and Unlock SW Front RH Door Lock Motor Front LH Door Lock Motor Front RH Door Unlock Detection SW Front LH Door Unlock Detection SW Front RH...
  • Page 120 Door Lock Control ACT– ACT+ I11 ( A ) Integration Relay Door Lock Motor Rear RH Door Lock Motor Rear LH 2004 COROLLA (EWD533U)
  • Page 121 I11 ( A ) Integration Relay DCTY PCTY PRCTY 13 A Junction Connector 2004 COROLLA (EWD533U)
  • Page 122 Door Lock Control System Outline The current always flows to TERMINAL 1 of the integration relay through the DOOR fuse. 1. Manual Lock Operation When the door lock control SW or door key lock and unlock SW are operated to Lock position, a lock signal is input to TERMINAL (A) 9 or (A) 7 of the integration relay and causes the relay to function.
  • Page 123 Service Hints I11 (A) Integration Relay 9–Ground : Always continuity 5–Ground : Continuity with the driver’s door open 1–Ground : Always approx. 12 volts 2–Ground : Approx. 12 volts 0.2 seconds with following operation ∗ Door lock control SW locked ∗...
  • Page 124 Door Lock Control : Splice Points Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Front Door RH Wire Front Door LH Wire 2004 COROLLA (EWD533U)
  • Page 125 Memo 2004 COROLLA (EWD533U)

  • Page 126: Wireless Door Lock Control

    Wireless Door Lock Control From Power Source System ( See Page 48 ) DOOR I11 ( A ) Integration Relay ( * 1 ) ( * 2 ) ( * 1 ) ( * 2 ) W–B W–B W–B W–B Junction Junction Connector...
  • Page 127 * 1 : w/ Power Window * 2 : w/o Power Window LSWD ACTD LSWP I11 ( A ) Integration Relay Door Key Lock and Unlock SW Front LH Door Key Lock and Unlock SW Front RH Door Lock Motor Front LH Door Lock Motor Front RH Door Unlock Detection SW Front LH Door Unlock Detection SW Front RH...
  • Page 128 Wireless Door Lock Control I11 ( A ) Integration Relay ACT– ACT+ DCTY PCTY PRCTY 13 A Door Lock Motor Rear RH Door Lock Motor Rear LH 2004 COROLLA (EWD533U)
  • Page 129 From Power Source System ( See Page 48 ) HEAD HORN DOME MAIN I11 ( A ) Integration Relay B–W HORN HRLY HEAD HORN Relay Relay 10 ID 13 4A 4 IA2 18 IA5 3 3C 13 ID H–LP Daytime Running Light Relay Door Control Receiver...
  • Page 130 Wireless Door Lock Control System Outline Door lock control (Lock and unlock) and panic control (TVIP alarm and flash) is performed by remote control, without the ignition key inserted in the door key cylinder, using low–power electrical waves emitted by a transmitter. 1.
  • Page 131 Service Hints I11 (A) Integration Relay 9–Ground : Always continuity 5–Ground : Continuity with the driver’s door open 1–Ground : Always approx. 12 volts 2–Ground : Approx. 12 volts 0.2 seconds with following operation ∗ Door lock control SW locked ∗...
  • Page 132 Wireless Door Lock Control : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) Rear Door LH Wire and Floor Wire (Left Center Pillar)
  • Page 133 Memo 2004 COROLLA (EWD533U)

  • Page 134: Tvip System

    TVIP System From Power Source System ( See Page 48 ) ECU–IG ECU–B Ignition SW B–W Relay R–B B–R B–R TRIG MAIN Glass Breakage Sensor ECU Starter FL MAIN 2. 0L W–B W–B W–B W–B W–B Battery W–B W–B W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 135 TVIP ECU SRLY IOUT DSWL HORN DSWD B–W R–B B–R W–B IOUT GMIC Glass Breakage Sensor ECU R–W Microphone G–Y W–B W–B W–B W–B W–B W–B W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 136 TVIP System From Power Source System ( See Page 48 ) DOME TVIP ECU HAZD HEAD LSWD LSWP DMLP IRSG 5 3C 6 3C R–B R–W R–W R–W G–Y G–Y W–B W–B W–B W–B 2004 COROLLA (EWD533U)
  • Page 137 From Power Source System ( See Page 48 ) I11(A) HEAD HORN Integration Relay MAIN TVSS DCTY PCTY PRCTY B–W 26 A HEAD HORN Relay Relay 4 IA2 H–LP R–W G–Y 2004 COROLLA (EWD533U)
  • Page 138 TVIP System Service Hints T3 TVIP ECU 10–Ground : Approx. 12 volts with the ignition SW at ON position 2–Ground : Always approx. 12 volts 29–Ground : Always continuity : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page...
  • Page 139 : Splice Points Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Instrument Panel Wire Instrument Panel Wire Instrument Panel Wire 2004 COROLLA (EWD533U)

  • Page 140: Moon Roof

    Moon Roof From Power Source System ( See Page 48 ) POWER GAUGE Moon Roof Control Relay and SW Relay Open Close Down MTR+ MTR– Moon Roof Motor and Limit SW W–B W–B W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 141 System Outline The moon roof can be operated when the ignition SW is turned to ON position. 1. Slide Open Operation The moon roof fully opens automatically by pressing the slide open button of the moon roof control SW once. If the moon roof control switch is pressed again when the moon roof is operating, the movement of the moon roof stops.

  • Page 142: Electronically Controlled Transmission

    Electronically Controlled Transmission B–W B–O B–O B–W Ignition SW R–W BATT E 3 ( A ) , E 4 ( B ) , E 5 ( C ) , E 6 ( D ) Engine Control Module Relay MAIN SLT+ SLT–...
  • Page 143 B–O R–W From Power Source System (See Page 48) B–O B–O * 1 : w/ Cruise Control STOP Data Link Connector 3 4 4C R–B 21 A 20 D E 3 ( A ) , E 4 ( B ) , E 5 ( C ) , E 6 ( D ) Engine Control Module ODMS ODLP...
  • Page 144 Electronically Controlled Transmission From Power Source System ( See Page 48 ) B–O * 2 : w/o ABS R–W GAUGE J 4(A), J 5(B) Junction Connector Combination Meter W–G 9 4C Vehicle Speed Sensor ( Combination Meter ) V–W Skid Control ECU with Actuator J 2 ( A ) , J 3 ( B ) Junction...
  • Page 145 System Outline Previous automatic transaxle have selected each gear shift using mechanically controlled throttle hydraulic pressure, governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, controls the line pressure and lock–up pressure etc. electrically, through the solenoid valve. The engine control module controls each solenoid valve based on the input signals from each sensor, which makes smooth driving possible by shift selection for each gear that is most appropriate to the driving conditions at that time.
  • Page 146 Electronically Controlled Transmission : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
  • Page 147 Memo 2004 COROLLA (EWD533U)

  • Page 148: Cruise Control

    Cruise Control From Power Source System ( See Page 48 ) DOME GAUGE B–W Ignition SW R–W Junction Connector A/T Shift Lever Position SW MAIN (A/T) FL MAIN 2. 0L G–R V–W Battery 2004 COROLLA (EWD533U)
  • Page 149 From Power Source System ( See Page 48 ) From Power Source System ( See Page 48 ) E 4 ( B ) , E 5 ( C ) , E 6 ( D ) Engine Control Module Data Link Connector 3 ECU–IG STOP...
  • Page 150 Cruise Control System Outline The current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW. With the ignition SW turned to on, the current flows through the MAIN fuse to AM2 fuse to ignition SW (IG2) to TERMINAL 32 of the combination meter and the current through the ECU–IG fuse flows to TERMINAL 2 of the cruise control ECU.
  • Page 151 9. Auto Cancel Function A) If any of the following operating conditions occurs during cruise control operation, the set speed is erased, current flow to the magnetic clutch is stopped and the cruise control is released, (CRUISE SW turns off). When this occurs, the ignition SW must be turned off once before the CRUISE SW will turn on.
  • Page 152 Cruise Control : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Engine Wire and Engine Room J/B (Engine Compartment Left) Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement)
  • Page 153 Memo 2004 COROLLA (EWD533U)
  • Page 154 From Power Source System ( See Page 48 ) GAUGE DOME B–W Ignition SW B–W MAIN R–W W–B MAIN W–G 2. 0L W–R Battery Junction Connector 2004 COROLLA (EWD533U)
  • Page 155 From Power Source System ( See Page 48 ) Daytime Running Light Relay Data Link Connector 3 ECU–IG STOP NO. 1 NO. 2 Stop Light SW Skid Control ECU with Actuator GND2 GND1 FL– FR– RL– RR– W–R 2004 COROLLA (EWD533U)
  • Page 156 System Outline ABS is a brake system designed to improve the operating ability and securing the stability of the vehicle by preventing the lock–up of the vehicle by controlling the wheel cylinder pressure of all the four wheels at the time of sudden braking. 1.
  • Page 157 : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Engine Wire and Engine Room J/B (Engine Compartment Left) Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) Instrument Panel Wire and Center J/B (Behind the Combination Meter)
  • Page 158 Memo 2004 COROLLA (EWD533U)
  • Page 159 NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionary instructions and the procedure and precautions in the Repair Manual for the applicable model year. D Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information when troubleshooting.
  • Page 160 B–W B–W L–W G–Y Ignition SW A12 ( A ) , A13 ( B ) , A14 ( C ) Airbag Sensor Assembly RBE+ LSP+ LSP– LBE+ MAIN Seat Position Sensor Buckle SW RH Occupant Detection Sensor Buckle SW LH Seat Position Sensor FL MAIN 2.
  • Page 161 * 1 : w/ Side Airbag B–W B–W L–W L–W G–Y G–Y Side Airbag Side Airbag Side Airbag Sensor LH Side Airbag Sensor RH Squib LH Squib RH SSL– VUPL SSR– VUPR SFL+ SFL– SFR+ SFR– SSL– VUPL SSR– VUPR A12 ( A ) , A13 ( B ) , A14 ( C ) Airbag Sensor Assembly PL–...
  • Page 162 From Power Source System ( See Page 48 ) B–W GAUGE DOME L–W G–Y Airbag Sensor Front LH Airbag Sensor Front RH –SL –SR –SL –SR A12 ( A ) , A13 ( B ) , A14 ( C ) Airbag Sensor Assembly GSW2 Combination Meter...
  • Page 163 System Outline The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts. When the ignition SW is turned to ON, current from the MAIN fuse flows to AM2 fuse to ignition SW (IG2) to TERMINAL (B) 5 of the airbag sensor assembly.
  • Page 164 : Ground Points Code See Page Ground Points Location Behind the Combination Meter Right Kick Panel : Splice Points Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Instrument Panel No.3 Wire 2004 COROLLA (EWD533U)
  • Page 165 Memo 2004 COROLLA (EWD533U)

  • Page 166: Shift Lock

    Shift Lock From Power Source System ( See Page 48 ) ECU–IG STOP Stop Light SW 7 3B W–B SLS+ SLS– Shift Lock Solenoid Junction Connector Shift Lock Control ECU 2004 COROLLA (EWD533U)
  • Page 167 System Outline When the ignition SW is turned to ON position, the current from the ECU–IG fuse flows to TERMINAL 5 of the shift lock control ECU. Shift Lock Mechanism With the ignition SW at ON position, when a signal that the brake pedal is depressed (Stop light SW on) and a signal that the shift lever is put in P position is input to the ECU, the ECU operates and the current flows from TERMINAL 5 of the ECU to TERMINAL SLS+ of the shift lock solenoid to TERMINAL SLS–...

  • Page 168: Key Reminder Buzzer

    Light Reminder Buzzer and Key Reminder Buzzer From Power Source System ( See Page 48 ) * 1 : w/ Door Lock Control * 2 : w/o Door Lock Control * 3 : USA * 4 : Canada G–W ( *3 ) GAUGE DOME TAIL...
  • Page 169 System Outline The current is applied at all times to TERMINAL 5 of the combination meter through the DOME fuse. When the ignition SW is turned to ON position, the current flows to TERMINAL 4 of the combination meter through the GAUGE fuse.
  • Page 170 Light Reminder Buzzer and Key Reminder Buzzer : Splice Points Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Instrument Panel Wire 2004 COROLLA (EWD533U)
  • Page 171 Memo 2004 COROLLA (EWD533U)

  • Page 172: Seat Belt Warning

    Seat Belt Warning From Power Source System ( See Page 48 ) GAUGE DOME Combination Meter Seat Belt Junction Connector W–B Junction Junction Connector Connector 2004 COROLLA (EWD533U)
  • Page 173 System Outline Current is always applied from the DOME fuse to TERMINAL 5 of the combination meter. When the ignition SW is turned to ON position, the current from the GAUGE fuse flows to TERMINAL 4 of the combination meter and flows TERMINAL 1 of the front passenger seat belt warning light.

  • Page 174: Rear Window Defogger

    Rear Window Defogger From Power Source System ( See Page 48 ) GAUGE DEFOG Relay Rear Window Defogger SW R15 ( A ) , R16 ( B ) Rear Window Noise Filter ( Rear Window Defogger Defogger ) 2004 COROLLA (EWD533U)
  • Page 175 Service Hints DEF Relay 5–3 : Closed with the ignition SW at ON position and the rear window defogger SW on : 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 176: Radio And Player

    Radio and Player From Power Source System ( See Page 48 ) * 1 : w/ Tweeter * 2 : w/o Tweeter DOME Antenna Amplifier R 3 ( A ) , R 4 ( B ) Radio and Player ANT+ FL–...
  • Page 177 From Power Source System ( See Page 48 ) R 3 ( A ) , R 4 ( B ) Radio and Player RL– RR– Rear Speaker LH Rear Speaker RH 2004 COROLLA (EWD533U)
  • Page 178 Radio and Player Service Hints R3 (A) Radio and Player (A) 4–Ground : Always approx. 12 volts (A) 3–Ground : Approx. 12 volts with the ignition SW at ACC or ON position (A) 7–Ground : Always continuity : Parts Location Code See Page Code...
  • Page 179 Memo 2004 COROLLA (EWD533U)

  • Page 180: Combination Meter

    Combination Meter B–W From Power Source System (See Page 48) HEAD RH GAUGE Ignition SW 4 IL R–W Combination Meter 2 IA4 DOME MAIN J 4 ( A ) , J 5 ( B ) Junction Connector 1 1A FL MAIN 2.
  • Page 181 B–W B–W R–W Combination Meter Buzzer Out Side Temp. ODO/TRIP ODO/TRIP W–G ( w/o ABS ) W–G (w/o ABS) W–B (w/o ABS) W–B 2004 COROLLA (EWD533U)
  • Page 182 Combination Meter B–W Turn Signal Flasher Relay Combination Meter W–B 2004 COROLLA (EWD533U)
  • Page 183 Combination Meter Airbag Sensor Assembly R–W (w/o ABS) Junction Connector R–W ( w/o ABS ) Brake Fluid Level Warning SW R–W Daytime Running Light Relay (w/o ABS) 2004 COROLLA (EWD533U)
  • Page 184 Combination Meter Service Hints B2 Brake Fluid Level Warning SW 1–2 : Closed with the float down C9 Combination Meter 4, 32–Ground : Approx. 12 volts with the ignition SW at ON position 1, 13, 36, 37–Ground : Always continuity 5–Ground : Always approx.
  • Page 185 : Splice Points Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points Engine Room Main Wire Instrument Panel Wire 2004 COROLLA (EWD533U)

  • Page 186: Radiator Fan

    Radiator Fan From Power Source System ( See Page 48 ) ECU–IG B–W B–W W–R NO. 1 NO. 2 Relay Relay Radiator Fan Motor Pressure Engine Control Module 2004 COROLLA (EWD533U)
  • Page 187 System Outline The current is applied at all times through the RDI FAN fuse to TERMINAL 5 of the FAN NO.1 relay. When the ignition SW is turned on, the current flows through the ECU–IG fuse to FAN NO.1 relay (Coil side) to TERMINAL 6 of the engine control module.

  • Page 188: Air Conditioning

    Air Conditioning From Power Source System ( See Page 48 ) L–W GAUGE HEATER R–W R–W R–W B–W Blower Resistor R–W B–W L–W L–W Blower SW W–B W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 189 L–W L–W FACE A/C SW Air Inlet Control SW FOOT Defroster Mode Detection SW Air Inlet Control SW AIND R–W R–W ACLD A/CS ACMG E 3 ( A ) , E 5 ( B ) Engine Control Module W–B 2004 COROLLA (EWD533U)
  • Page 190 Air Conditioning System Outline Current is applied at all times through the HEATER fuse to TERMINAL 5 of the HTR relay. When the ignition SW is turned on, the current flows through the GAUGE fuse to TERMINAL 2 of the HTR relay to TERMINAL 1 to TERMINAL 6 of the blower SW.
  • Page 191 : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code...

  • Page 192: Heater

    Heater From Power Source System ( See Page 48 ) Air Inlet Control SW GAUGE HEATER Air Inlet Control SW R–W R–W R–W R–W B–W Blower Resistor Relay B–W L–W 20 3A 11 3A L–W Blower SW W–B Junction Connector 2004 COROLLA (EWD533U)
  • Page 193 Service Hints HTR Relay 5–3 : Closed with the ignition SW at ON position and the blower SW on : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code...
  • Page 194 I GROUND POINT W–B W–B (–S) FAN NO. 2 Relay Pressure SW W–B W–B ( CUT– ) EFI Relay W–R W–B ( LP ) Front Parking Light W–B Combination Front Turn Signal Meter Light LH W–B (EBD) W–B Front Fog Light Front Parking Light W–B W–B...
  • Page 195 W–B W–B W–B Glass Breakage TVIP ECU Sensor ECU W–B W–B Security Indicator W–B W–B P–POINT Relay ( T ) Combination SW (USA) W–B (ECC) Combination SW Buckle SW RH W–B W–B Occupant Detection Sensor W–B W–B Cruise Control Actuator W–B W–B Buckle SW LH...
  • Page 196 I GROUND POINT J 8 ( A ) , J 9 ( B ) Junction Connector W–B W–B Rear Combination High Mounted Stop Light LH Light W–B Rear Combination Light RH W–B W–B License Plate Light Door Control Receiver W–B License Plate Light W–B Rear Combination...
  • Page 197 : Parts Location Code See Page Code See Page Code See Page : Relay Blocks Code See Page Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location)
  • Page 198 J POWER SOURCE (Current Flow Chart) 2004 COROLLA (EWD533U)
  • Page 199 2004 COROLLA (EWD533U)
  • Page 200 J POWER SOURCE (Current Flow Chart) Engine Room R/B,Engine Room J/B (See Page 22) Fuse System Page ALT–S Charging HAZARD Turn Signal and Hazard Warning Light HEAD LH LWR Headlight HEAD LH UPR Headlight HEAD RH LWR Headlight Combination Meter HEAD RH UPR Headlight Horn...
  • Page 201 Fuse System Page Charging 100A Illumination Taillight Instrument Panel J/B (See Page 24) Fuse System Page 7.5A Engine Control Air Conditioning Fog Light ECU–B Headlight TVIP System Cruise Control ECU–IG Radiator Fan Shift Lock TVIP System Air Conditioning Automatic Glare–Resistant EC Mirror with Compass Back–Up Light Charging Combination Meter...
  • Page 202 J POWER SOURCE (Current Flow Chart) Fuse System Page Starting and Ignition TVIP System Cigarette Lighter Clock Power Outlet Radio and Player Remote Control Mirror P/POINT Power Outlet Cruise Control Electronically Controlled Transmission STOP Engine Control Shift Lock Stop Light Clock Engine Control Headlight...
  • Page 203 Memo 2004 COROLLA (EWD533U)
  • Page 204 K CONNECTOR LIST Gray Gray Gray Yellow Yellow Black Black Black Yellow Yellow Yellow Yellow 1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 1011121314151617 7 8 9 101112 7 8 9 101112 1819...
  • Page 205 Gray 1 2 3 4 Black Black 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 4 5 6 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 12 13 14 15 16 17 18 19 20 16 15 14 13 12 11 10 9 9 10 11 12 13 14 15 16...
  • Page 206 K CONNECTOR LIST Gray Dark Gray 1 2 3 4 5 6 5 6 7 8 9 10 5 6 7 8 9 10 13 14 15 16 22 23 24 25 30 31 32 15 16 17 18 9 10 13 14 15 13 14 15 16 24 25...
  • Page 207 (LED Type) Black Gray Brown Brown Brown 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 Brown Gray Gray Gray Gray 1 2 3 4 Black 1 2 3 4 5 4 5 6 7 8 9 15 16 18 19 20 21 22 23 24 25 26...
  • Page 208 K CONNECTOR LIST Gray Gray Black Gray Brown 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 3 4 5 6 Yellow Yellow 3 4 5 6 3 4 5 6 3 4 5 6 Gray Black Black...
  • Page 209 *1 : w/ Cruise Control *2 : w/o Cruise Control Black Black 4 5 6 10 11 12 17 18 19 26 27 28 32 33 34 Black Yellow Yellow 1 2 3 4 (*1) Blue (*2) Black Yellow Yellow Black 1 2 3 1 2 3 4...
  • Page 210 L PART NUMBER OF CONNECTORS Code Part Name Part Number Code Part Name Part Number A/C Magnetic Clutch 90980–11271 Cruise Control Clutch SW 90980–10906 A/T Shift Lever Position SW Cruise Control ECU 90980–12094 Back–Up Light SW Data Link Connector 3 90980–11665 90980–11784 Park/Neutral Position SW...
  • Page 211 Code Part Name Part Number Code Part Name Part Number Headlight RH (Low) 90080–98038 Power Outlet (Rear) 90980–10760 Heated Oxygen Sensor (Bank 1 Sensor 1) 90980–10869 Power Window Control SW Front RH Horn 90980–10619 Power Window Control SW Rear LH 90980–10789 Power Window Control SW Rear RH Hazard SW...
  • Page 212 L PART NUMBER OF CONNECTORS Code Part Name Part Number Code Part Name Part Number VSV (EVAP) 90980–11156 Vapor Pressure Sensor 90980–11143 VSV (Vapor Pressure Sensor) 90980–11859 Washer Level Sensor 90980–11068 Note: Not all of the above part numbers of the connector are established for the supply. 2004 COROLLA (EWD533U)
  • Page 213 Code Part Name Part Number Code Part Name Part Number 2004 COROLLA (EWD533U)
  • Page 214 M OVERALL ELECTRICAL WIRING DIAGRAM 2004 COROLLA (EWD533U)
  • Page 215 [A] : System Title [F] : Junction Block (The number in the circle is the J/B No. and the connector code is shown beside it). [B] : Indicates the wiring color. Junction Blocks are shaded to clearly separate them Wire colors are indicated by an alphabetical code. from other parts.
  • Page 216 SYSTEM INDEX SYSTEMS LOCATION SYSTEMS LOCATION ........... . . 12–2 Light Reminder Buzzer .
  • Page 217 1 COROLLA P ow er S ou rc e S ta rtin g Ig nitio n 5 AM2 B–W B–W * 1 : w/ TVIP System * 2 : w/o TVIP System Ignition SW Engine Control Module 3 IA2 12 II2 (A/T) <3–3>...
  • Page 218 2 COROLLA P ow e r S ou rc e C h arg in g B–Y 5 AM2 B–W GAUGE Relay Ignition SW 2 IA4 5 EA1 14 II2 2 II2 FL MAIN 2. 0L Battery Junction Junction G 1(A), G 2(B) Connector Connector Generator...
  • Page 219 ( Cont. next page ) 3 COROLLA P ow e r S ou rc e E n gin e C o ntro l R–B B–W B–O B–W Ignition SW B–W B–W B–W 10 EA1 6 IM 1 IA2 3 EA1 1 IB 11 D BATT...
  • Page 220 3 COROLLA ( Cont’ d ) ( Cont. next page ) E n gine C on trol R–B R–B 14 A 10 A 11 A 13 D 12 D 19 C 14 D 14 C 33 C 31 C 13 A OCV+ OCV–...
  • Page 221 3 COROLLA ( Cont’ d ) E n gine C on tro l * 1 : Shielded R–B Data Link Connector 3 WFSE 26 A 17 C NE– G22+ TACH WFSE E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module HT1A OX1A HT1B...
  • Page 222 ( Cont. next page ) 4 COROLLA * 1 : USA * 2 : w/ TVIP System P ow e r S ou rc e H e ad lig ht * 3 : w/ Wireless Door Lock * 4 : w/ Fog Light G–O Automatic Light (*4)
  • Page 223 4 COROLLA ( Cont’ d ) H e ad lig h t F o g L ig ht * 4 : w/ Fog Light G–O (*4) R–B DIMMER Relay R–B HEAD LH HEAD RH R–B HEAD LH HEAD RH Relay R–Y R–B R–B...
  • Page 224 5 COROLLA P ow er S ou rc e T urn S ign al an d H a z ard W a rning L igh t R–W * 1 : w/ Wireless Door Lock * 2 : w/o Wireless Door Lock * 3 : w/ TVIP System 8 IA5 B–Y...
  • Page 225 6 COROLLA P o w er S o u rce T aillig ht G–W G–W (USA) (USA) G–W (Canada) TAIL J 8 ( A ) , J 9 ( B ) Junction Connector TAIL Daytime Running Light Relay G–W (Canada) Tail Head 1 1A...
  • Page 226 7 COROLLA P ow e r S o urc e S to p L igh t Stop Light SW G–W J 8 ( A ) , J 9 ( B ) Junction Connector STOP FL MAIN 2. 0L Junction Connector Battery W–B Lower Back Panel...
  • Page 227 8 COROLLA P ow e r S ou rc e Illu m in ation * 1 : USA * 2 : Canada Combination SW Clock Tail <21–2> Head Engine Control (*2) Module<3–6> TAIL 10 A TAIL ILL– W–B W–B W–B W–B W–B W–B...
  • Page 228 ( Cont. next page ) 9 COROLLA P ow e r S o urc e Inte rio r L igh t * 1 : w/ Moon Roof * 2 : w/o Moon Roof * 5 : w/ Automatic Glare–Resistant EC Mirror * 7 : w/ TVIP System B–Y Ignition SW...
  • Page 229 9 COROLLA ( Cont’ d ) In terior L ig ht * 1 : w/ Moon Roof * 2 : w/o Moon Roof * 3 : w/o Door Lock Control * 4 : w/ Door Lock Control * 5 : w/ Automatic Glare–Resistant EC Mirror * 6 : w/o Automatic Glare–Resistant EC Mirror * 7 : w/ TVIP System I11(A)
  • Page 230 ( Cont. next page ) 10 COROLLA P o w e r S o ur ce E le c tron ic a lly C on trolled T ran sm iss ion * 1 : w/ Cruise Control R–W B–W B–Y B–W B–W 10 EA1...
  • Page 231 10 COROLLA ( Cont’ d ) E le ctro nic ally C o ntro lle d T ra ns m is s io n B a ck – U p L ig ht R–W R–W 14 II2 R–W ( A/T ) B–O A/T Shift Lever Position SW Back–Up Light SW...
  • Page 232 11 COROLLA P ow er S ou rc e C ruis e C o ntro l * 1 : A/T 2 IF B–Y GAUGE ECU–IG Ignition SW 6 IM 5 IL 3 II1 5 IA5 STP– Cruise Control 2 IA4 12 IA5 4 IA5 13 IA5...
  • Page 233 12 COROLLA P ow er S ou rc e A B S 5 AM2 6 IM Ignition SW Relay 11 IA6 12 IA6 4 IA6 15 IA5 2 IA4 Skid Control ECU with Actuator GND2 GND1 FL– FR– RL– RR– 1 IB1 2 IB1 3 IB1...
  • Page 234 ( Cont. next page ) 13 COROLLA P o w er S o u rce S R S * 1 : w/ Side Airbag B–W B–W Airbag Sensor Front LH Airbag Sensor Front RH Side Airbag Side Airbag Squib LH Squib RH Side Airbag Sensor LH Side Airbag Sensor RH...
  • Page 235 13 COROLLA ( Cont’ d ) S R S B–W A12(A), A13(B), A14(C) Airbag Sensor Assembly GSW2 28 B 27 B 23 B 19 B 12 B Data Link Connector 3 <3–11><3–12> W–B Junction Connector Right Kick Panel Behind the Combination Meter...
  • Page 236 14 COROLLA A u to m atic G lare – R es ista n t P ow er S ou rc e W ip er an d W as he r E C M irro r w ith C o mp a ss * 1 : w/ Moon Roof * 2 : w/o Moon Roof INT1...
  • Page 237 15 COROLLA ( Cont. next page ) * 1 : w/ Power Window P ow e r S o urc e D oo r L o ck C o ntro l * 2 : w/o Power Window * 3 : w/ TVIP System L–Y B–Y I11(A)
  • Page 238 15 COROLLA ( Cont’ d ) D oo r L o c k C o n trol W ire le ss D o or L oc k C on tro l L–Y I11(A) Integration Relay LSWP ACT– ACT+ TVSS HRLY HORN 8 IJ 10 ID...
  • Page 239 16 COROLLA P ow e r S o urc e T V IP S y s tem R–B R–B B–Y 2 IF Ignition SW Integration Relay <9–8><15–3><15–5><15–7> ECU–IG ECU–B B–W HORN HEAD HAZD SRLY DMLP IRSG LSWP LSWD IOUT DSWD DSWL TVIP ECU W–B...
  • Page 240 17 COROLLA P o w e r S o urc e P ow er W in do w Power Window Master SW Front RH Rear LH Rear RH Front LH Ignition SW Down 1 IC1 2 IC3 1 IC3 7 IC3 6 IC3 5 IC3 4 IC3...
  • Page 241 18 COROLLA P ow er S ou rc e M oo n R o of S hift L o ck Moon Roof Control Relay and SW Ignition SW Open Close Relay Down MTR+ MTR– GND SLS+ SLS– Moon Roof Motor and Limit SW FL MAIN 2.
  • Page 242 19 COROLLA Ligh t P ow er S ou rc e S e a t B elt W a rn in g K e y R e m in de r B u zz e r R e mind e r B uz z e r G–W G–W (*4)
  • Page 243 20 COROLLA P ow e r S o urc e R e m ote C on trol M irro r L–R Remote Control Mirror SW Ignition SW Operation Left/ Right/ Left Right Down Down Select Left Right Left Right 10 IC2 8 IC2 10 IJ1 8 IJ1...
  • Page 244 21 COROLLA P o w er S ou rc e C iga rette L igh ter C loc k P o w e r O utle t H orn * 1 : w/ Wireless Door Lock * 2 : w/o Wireless Door Lock * 3 : TVIP System * 4 : w/ Cigarette Lighter L–R...
  • Page 245 22 COROLLA P ow e r S o urc e R ea r W ind ow D efo gg e r Ignition SW 8 ID1 Noise Relay Filter DEFOG GAUGE 100A Rear Window Defogger SW R–W FL MAIN 2. 0L Battery Junction Connector...
  • Page 246 23 COROLLA P ow e r S o urc e R a dio an d P lay er * 1 : w/ Tweeter * 2 : w/o Tweeter L–R Ignition SW 1 IB R 3(A), R 4(B) 10 A Radio and Player ANT+ ILL+ ILL–...
  • Page 247 24 COROLLA ( Cont. next page ) P o w er S o u rce C om b in ation M e ter B–W B–O 5 AM2 4 IL 12 IF Combination Meter Ignition SW Buzzer Out Side Temp. ODO/TRIP ODO/TRIP 22 3B 2 IA4...
  • Page 248 24 COROLLA ( Cont’ d ) C o m bina tio n M ete r B–O Combination Meter SRS System <13–6> 3 IA6 10 IA6 13 IA6 5 IA6 16 IA5 17 IA5 3 II2 R–W (w/o ABS) Junction Connector R–W R–W (w/o ABS)
  • Page 249 25 COROLLA P ow e r S ou rc e R ad ia tor F a n B–W W–R Ignition SW NO. 1 NO. 2 Relay Relay LG–B LG–B 1 IB 7 IA5 6 IA5 1 1A FL MAIN 2. 0L Radiator Fan Motor Battery...
  • Page 250 26 COROLLA P o w e r S o urc e A ir C on ditio ning L–W L–W FACE B–Y A/C SW Air Inlet Control SW Defroster Mode Detection SW FOOT Ignition SW Relay AIND 4 EA1 7 IA6 R–W 1 1C 18 3B...
  • Page 251 27 COROLLA P o w e r S o urc e H ea ter Air Inlet Control SW B–Y Ignition SW Relay R–W 18 3B 1 1C Blower Resistor 13 3B R–W 1 IH1 2 IH1 6 IH1 5 IH1 B–W L–W FL MAIN...

Table of Contents