Body Electrical System Precaution

HINT:

Take care to observe the following precautions when performing inspections or removal and replacement of body electrical related parts.

1. HEADLIGHT SYSTEM

Halogen bulbs have pressurized gas inside and require special handling. They can burst if scratched or dropped. Hold a bulb only by its plastic or metal case. Don't touch the glass part of a bulb with bare hands.

2. SRS {SUPPLEMENTAL RSTRAINT SYSTEM)

The CELICA is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front passenger airbag, failure to carry out service operation in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the precautionary notices in the RS section.

3. AUDIO SYSTEM

If the negative (-) terminal cable is disconnected from the battery, the preset AM, FM 1 and FM 2 stations stored in memory are erased, so be sure to note the stations and reset them after the battery terminal is reconnected.

4. MOBILE COMMUNICATION SYSTEM

If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.

TROUBLESHOOTING PROBLEM SYMPTOMS TABLE

IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH:

Symptom

Suspect Area

See page

ignition switch is not se! to each position.

1. Ignition Switch

BE-H

"Key unlock warning system" does not operate.

1. GAUGE Fuse

2. Key Unlock Warning Switch

3. Door Courtesy Switch

4. Body Control System

5. Combination Meter

6. Wire Harness

8E-I0 8E-14 BE-28 DI-535

HEADLIGHT AND TAILLIGHT SYSTEM

Symptom

Suspect Area

See page

Headlight does not light.(TailligM is normal.)

2. Headlight Relay

3. Headlight Dimmer Switch

4. Light Control Switch

5. Body Con I rot System

6. Headlight Bulb

7. Wife Harness

BE-to BE-17 BE-17 BE-17 01-535

Headlight does not light. (Tailligbt does not light up.)

1. Light Control Switch ?.. Body Control System

3. Headlight Bulb

4. Wire Harness

BE-17 DI-535

Only one side light does not liyhl.

1. HEAD Fuse

2. Headlight Bulb

3. Wire Harness

ae-io

"Lo Beam" does no! lighl.

1. Light Control Switch

BF.-I7

Lo-Beam"does not light. (ALL)

1. Headlight Dimmer Switch

2. Body Control System

3. Wire Harness

BE-17 BE-17

'Lo-Beam" does nol light. {ONE SIDE)

3. Headlight Bulb

4. Wire Harness

BE-1Û BE-10

"Hi-Beam" does not light. (ALL)

1. Headlight Dimmer Switch

2. Body Control System

3. Wire Harness

BE-17 Dt-535

"HH3eam" does not light. (ONE SIDE)

3. Headlight Bulb

4. Wire Harness

BE-10 BE-10

"Flash" does not light.

1. Headlight Dimmer Switch

2. Body Control System

3. Wire Harness

BE-17 DI-535

"Light-on warning System" does not operate

t. GAUGE Fuse

2. Door courtesy Switch (Driver's)

3. Body Control System

4. Combination Meter

5. Wire Harness

BE-10 BE-28 Df-535

"Automatic light control system" does not operate.

1. ECU-IG Fuse

2. DOME Fuse

3. Automatic Light Control Sensor

4. Light Control Switch

5. Door Courtesy Switch

6. Body Control System

7. Wire Harness

BE-10 BE-10 BE-17 BE—17 BE-28 Dl—635

Headlight does not light with light control SW in HEAD.

1. Light Control Switch

2. Body Control System

3. Wire Harness

BE-17 Dl-535

Headlight does not go out with fight control SW in OFF.

1. Headlight Relay

2. Body Control System

3. Wire Harness

BE-17 Dl-535

Taillighl does not tight with light control SW in TAIL.

1. Taiilight Relay

2. Light Conlrol Switch

3. Body Control System

BE-17 BE-17 Dl-535

Tailiight does riot go out with light control SW In OFF.

t. Tailiight Relay

2. Light Control Switch.

3. Body Control System

4. Wire Harness

BE-17 BE-t7 Dl-535

Headlight does not light with engine running and light control SW in OFF.

1. GAUGE Fuse

2. Generator L Terminal

3. Parking Brake Switch

4. Body Control System

5. Wire Harness

BE-10 CH-10 BÉ--4S Dl-535

FOG LIGHT SYSTEM

Symptom

Suspect Area

See page

Front tog light does not light with light control switch at HEAD, (Headlight is normal.)

1. FOG Fuse

2. Front Fog Light Relay

3. Front Fog Light Switch

4. Wire Harness

BE-10 6E-23 BE-23

Front fog light does not light with light control switch at HEAD. (Headlight does not light up.)

1. Headlight and Tailiight System

2. Wire Harness

BE-2

Only one light does not light tip.

1. Bulb

2. Wire Harness

-

TURN SIGNAL AND HAZARD WARNING SYSTEM

Symptom

Suspect Area

See page

"Hazard" and 'Turn" do not light up.

t. Hazard Warning Switch

2. Turn Signal f fas her

3. Wire Harness

BE-26 RE-26

The flashing frequency is abnormal.

1. Bulb

2. Turn Signal Flasher

3. Wire Harness

BE-26

Hazard warning light does not light up. (Turn is normal.)

1. HAZARD Fuse

2. Wire Harness

BE-10

Hazard warning light does not light up in one direction.

1. Hazard Warning Switch

2. Wire Harness

BE-26

Turn signal does not light up.

(Combination meter, wiper and washer do not operate.)

1. Ignition Switch

2. TURN Fuse

3. Turn Signal Switch

4. Wire Harness

BE-10 BE-10 BE-26

Turn signal (loos not sight up.

(Combination meter, wiper and washer are normal.)

i. TURN Fuse 2 Tom Signal Switch 3. Wire Harness

BE-10 Bfi-26

Turn signal does not light up in one direction.

1. Turn Signal Switch

2. Wire Harness

BE-26

Only one bulb (foes not light up.

1. Bulb

2. Wire Harness

-

INTERIOR LIGHT SYSTEM

Symptom

Suspect Area

See page

Only one light does not light up.

1. Bulb

2 Wire Harness

-

Front interior light does no! light up.

1. Bulb

2. Map Light Assembly

3. Wire Harness

BE-28

Rear interior light does not light up.

1. Bulb

3. Luggage compartment courtesy switch

4. Wire Harness

BE -10 BE-28

The illumination does not fade out when all the doors are dosed.

t. Courtesy Switch

2. Body Control System

3. Wire Harness

8E-2A D1-53S

The illumination decs not fade out immediately when the ignition switch is turned to ACC or ON within 15 seconds after all the doors are closed.

1. Ignition Switch

2. RADIO NO 2 Fuse

3. GAUGE Fuse

4. Body Control System

5. Wire Harness

ee-14 8E-10 BE-10 DI-535

The illumination does not lade out immediately when at! the doors are locked within 15 seconds after they are closed.

1, Door Unlock Detection Swilch 2 Body Control System 3. Wire Harness

BË--63 DI-535

BACK-UP LIGHT SYSTEM

Symptom

Suspect Area

See page

Back-up light does not light up

1. GAUGE Fuse

3. Park/Neutral Position Switch (A'X)

4. Buib

5. Wire Harness

BE-10 8E-31 DI-202 Dl—261

Back-up light remains always ON.

1. Wire Harness

-

Only one light does not light up.

1. Bulb

2. Wire Harness

-

STOP LIGHT SYSTEM

Symptom

Suspect Area

See page

Slop light does not tight up.

1. STOP Fuse

2. Stop Light Switch

3. fiulb

4. Wire Harness

BE-10 BE—33

Stop light remains always ON

1. Stop Light Switch 2 Wire Harness

BE-33

Onty one light does not light up.

1. Bulb

2. Wire Harness

-

WIPER AND WASHER SYSTEM

Symptom

Suspect Area

See page

Wipers and washers do not operate.

1. WIPER Fuse

2. Ignition Switch

3. Wiper and Washer Switch

4. Wire Harness

88-10 BE-14 BE-35

Front wiper does not operate.

1. Front Wiper and Washer Switch 2 Front Wiper Motor 3. Wire Harness

BE-35 GE-35

Rear wiper does not operate.

1 Rear Wiper and Washer Switch

2. Rear Wiper Motor and Relay

3. Wire Harness

BE-35 BE-35

Front washer does not operate.

1. Front Wiper and Washer Switch

2. Washer Motor

3. Wire Harness

BE-35 BE-35

Rear washer does not operate.

1. Rear Wiper and Washer Switch

2. Washer Motor

3. Wire Harness

0Ë-3S BE-35

Meter, Gauges and Illumination: COMBINATION METER

Symptom

Suspect Area

See page

Tachometer, fuel gauge and engine coolant temperature gauge do not operate.

1. GAUGE Fuse

2. Meter Circuit

3. Wire Harness

8E-10 BE—42

Speedometer does not operate

1. Vehicle Speed Sensor

2. Meter Circuit

3. Wire Harness

BE-46 BE-42

Tachometer does not operate.

1. Igniter

3. Meter Circuit

4. Wire Harness

Df-114 Di-1 BE-42

Fuel gauge does not operate or abnormal operation.

1. Fuel Receiver Gauge

2. Fuel Sender Gauge

3. Meter Circuit

4. Wire Harness

8E-46 Bt-46 BE-42

Engine coolant temperature gauge does not operate or abnormal operation.

1. Engine Coolant Temperature Receiver Gauge

2. Engine Coolant Temperature Sender Gauge

3. Meter Circuit

4. Wire Harness

BE-46 8E-46 BE-42

All illumination lights do not light up.

2. Light Control Rheostat

3. Meter Circuit

4. Wire Harness

BE—10 BE-^6 BE-42

Only one illumination light does not light up.

2. Meier Circuit

BE-42

Warning Lights: COMBINATION METER

Symptom

Suspect Area

See pago

1. Bulb or LED

_

2. IGNFuse

BE-10

Warning lights do not Sight up.

3 Ignition Swiich

BE-14

(Except discharge and door open.)

4. Meter Circuit

BE-12

5. Generator

CH—10

6. Wire Harness

-

1. LED

-

2. Brake Fluid Level Warning Switch

BE—46

Brake warning Light does no! fight up.

3. Parking Brake Switch

BE—46

4. Meter Circuit

BE-42

5. Wire Harness

-

?. LEO

-

2. Seat Belt Buckle Switch

8E-46

Seat belt warning light does not light up.

3. Body Control System

01-535

4. Meter Circuit

BE-42

5. Wife Harness

-

1. LED

_

Low oil pressure warning light does not light up.

2. Low Oil Pressure Warning Switch

3, Meter Circuit

BE-46 BE-42

4. Wire Harness

-

1. LED

-

3. DOME Fuse

BE-10

3. Door Courtesy Switch

BE-28

Oooi open warning light does no; light up.

4. Luggage Room Light Switch

BE-28

5 Body Control System

D1-535

6. Meter Circuit

eE-42

7. Wire Harness

-

Indicator Lights:

COMBINATION METER

Symptom

Suspect Area

See page

1. LED

-

SRS indicator light does not light up.

2. A ¡(bag Sensor Assembly

3. Wire Harness

Dl-324

ABS indicator light does not light up.

2. Wire Harness

_

1. LED

-

Malfunction indicator light does not light up.

3. Wire Harness

DM

1. LEO or LCO

-

2. Park/Neutral Position Switch

D1-202

A/T shift position indicalor light does not light up.

3. Light Control Rheostat

D1-261 BE-46

4. Meier Circuit

BE—42

5. Wire Harness

-

1. LED or LCD

-

2. 0,'0 Main Switch

Dl -206

O'O OFF indicator light does not light up

3. ECM

DI-268 OI-1

4. Metor Circuit

BE-42

5. Wire Harness

-

Turn indicator light does not light up.

1. Bulb

2 Turn Signal and Hazard Warning System

3. Meter Circuit

4. Wire Harness

BE-2 BE-42

High beam indicator light does not light up.

t. Bulb

2. Headlight and Taillight System

3. Meter Circuit

4. Wire Harness

BE-2 BE—12

CRUISE indicator light does not fight up.

2. Cruise Control fiCU

3. Meter Circuit

4. Wire Harness

DM83 BE—12

DEFOGGER SYSTEM

Symptom

Suspect Area

See page

Ait delogger systems do not operate.

4. Defogger Switch

5. Wire Harness

BE-10 BE-10 BË-55 BE-55

Rear window defogger does not operate.

1. Defogger Wires

2. Wire Harness

BE-55

ELECTRIC TENSION REDUCER SYSTEM

Symptom

Suspect Area

See page

Tension reducer does not operate. (Drivers and Passenger's.)

1. GAUGE Fuse

2. Wire Harness

BE-10

Tension reducer does not operate. (Only one side.)

1. Ruckle Switch

2. Tension Reducer Solenoid

3. Wire Harness

BE- 53 BE-52

POWER WINDOW CONTROL SYSTEM

Symptom

Suspect Area

See page

Power window does not operate.

1. POWER Rise

2. GAUGE Fuse

3. Ignition Switch

4. Power Window Master Switch

5. Wire Harness

BE-10 BE-10 BE-14 BE-59

"One touch power window system" does not operate.

1. Power Wineksw Master Switch

8E-59

Only one window glass does no! move.

1. Power Window Master Switch

2. Power Window Motor

3. Wire Harness

BE-59 BE-59

"Window lock system' does not operate.

1. Power Window Master Switch

BE-59

Illumination does not light up.

1. Power Window Master Switch

8E-59

POWER DOOR LOCK CONTROL SYSTEM

Symptom

Suspect Area

See page

"Door lock conlrol system' dons not operate.(ALL)

1. Body Control System

2. DOOR Fuse

3. GAUGE Fuse 4 Wire Harness 5. Other Parts

D1-535 BE-10 RE-10

Malfunction in Door Lock / Unlock (Using door manual switch.)

1. Door Lock Control Switch

2. Body Control System

3. Wire Harness

4. Other Parts

8E-63 D1-53 5

Malfunction in Door Lock / Unlock. (Using door manual switch and key.)

t. Wire Harness 2 Other Parts

-

Malfunction in Door Lock / Unlock. (Using key.)

! Door Unlock Defection Switch

2. Body Control System

3. Wire Harness

4. Other Parts

8E-63 Dt-535

Fault in 2 - Operation unlock function of driver's side door key lock and unlock switch.

1. Door Unlock Detection Switch

2. Body Control System

3. Wire Harness 4 Other Parts

BE-63 DM335

Fault in key conline prevention operation.

1. Door Unlock Detection Switch

2. Door Courtesy Switch

3. Door Lock Control Switch

4. Body Control System

5. Wire Harness

6. Other Parts

BE-63 BE-28 BE-63 01-535

Only one door lock does not operate.

1. Door Lock Motor

2, Wire Harness

BE-63

WIRELESS DOOR LOCK CONTROL SYSTEM:

HINT:

Troubleshooting of the wireless door lock control system is based on the premise that the door lock control syslem, power slide door control system and theft deterrent system are operating normally. Accordingly, before troubleshooting the wireless door lock control system, first make certain that the door lock control system, power slide door control system and theft deterrent system are operating normally. If Ihe trouble still reappears even though there are no abnormalities in any of the other circuits, check and replace the Wireless Door Lock Receiver as the last step.

Symptom

Suspect Area

See page

All functions of wireless door lock control system do not operate.

1. Door Courtesy Switch

2. Door Key Lock and Unlock Switch

3. Key Unlock Warning Switch

4. Wireless Door Lock Receiver

5. Body Control System

6. Wire Harness

BE-28 BE-63 BE-! 4 BE-73 Di-535

Only door unlock operation is not possible (Lock operation is possible).

1. Door key l ock and Unlock Switch

2. Door Unlock Detection Switch

3. Wireless Door Lock Receiver

4. Body Control System 5 Wire Harness

BE-63 BE-63 BE-73 DI-535

Only doer lock operation is not possible (Unlock operation is possible;.

1. Door key Lock and Unlock Switch 2 Wireless Door Lock Receiver 3. Wire Harness

8E-63 BE-73

Only key confinement prevention (unction is not possible.

t. Key Unlock Warning Switch

2. Wireless Ooor Lock Receiver

3. Wire Harness

8E-14 BE-73

• Wireless door lock function operates even when each door is opened.

» Automatic lock function operates even if any door is opened within 30 seconds after all doors are unlocked by wireless door lock control system.

1. Door Courtesy Switch

2. Wireless Door Lock Receiver

3. Wire Harness

BE-28 BE—73

Wireless door lock functions incorrectly.

(Although one door is unlocked, when the transmitter switch is pressed, all doors are unlocked.)

1. Door Unlock Detection Switch

2. Wireless Door Lock Receiver

3. Wire Harness

8E-63 3E-73

Warning operation will not be performed even if the panic button is pressed.

4. Wireless Door Lock Receiver

5. Wire Harness

BE-73

SLIDING ROOF SYSTEM

Symptom

Suspect Area

See page

Sliding roof system does not operate.

3. Sliding Roof Control Assembly

4. Sliding Rool Switch 5 Wire Harness

8E-10 BE-TO BE-84 BL-84

Sliding roof system operates abnormally.

1. Sliding Roof Control Assembly

2. Sfiding Rool Switch

3. Wire Harness

BE-Ö4 BE-84

Sliding root system slops operation half way.

1. Sliding Roof Control Assembly 2 Sliding Rool Switch

BE-64 BE-84

"Key-off Sliding Roof" operation does not operate.

1. POWER Fuse

2. GAUGE Fuse 3 Ignition Switch

4. Door Courtesy Switch

5. Body Control System

6. Wire Harness

BE-IO 8E-10 BE-14 BE 28 01-535

POWER MIRROR CONTROL SYSTEM

Symptom

Suspect Area

See page

Mirror does not operate.

2. Mirror Switch

3. Mirror Motor

BE-10 BE-86 BE-66

Minor operates abnormally.

1. Mirror Switch

2. Mirror Motor

3. Wire Harness

BE-86 BE-86

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