bulb TOYOTA SUPRA 1997 Service Repair Manual
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Page 157 of 1807
BE0DL-01
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-1
1979 Author: Date:
1997 SUPRA (RM502U)
BODY ELECTRICAL SYSTEM
PRECAUTION
Take care to observe the doing 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 RESTRAINT SYSTEM)
The SUPRA 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 re-
moval 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 sta-
tions stored in memory are erased, so be sure to note the stations and reset them after the battery
terminal is reconnected.
If the negative (-) terminal cable is disconnected from the battery, the ºANTI-THEFT SYSTEMº will
operate when the cable is reconnected, but the radio, tape player and CD player will not operate. Be
sure to input the correct ID number so that the radio, tape player and CD player can be operated again.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.
Page 158 of 1807
BE0DM-02
BE-2
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
1980 Author: Date:
1997 SUPRA (RM502U)
PROBLEM SYMPTOMS TABLE
IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH
SymptomSuspect AreaSee page
Ignition switch is not set to each position.1. Ignition SwitchBE-13
ºKey unlock warning systemº does not operate.
1. GAUGE Fuse (J/B No.1)
2. Key Unlock Warning Switch
3. Door Courtesy Switch
4. Wire Harness
BE-13
BE-28
USA:
HEADLIGHT AND TAILLIGHT SYSTEM
SymptomSuspect AreaSee page
Headlight does not light. (Taillight is normal)
1. Headlight Bulb
2. HEAD (LH, RH) Fuse (R/B No.2)
3. Headlight Control Relay (R/B No.2)
4. Integration Relay
5. Headlight Dimmer Switch
6. Light Control Switch
7. Wire Harness
BE-17
BE-13
BE-17
BE-17
Headlight does not light. (Taillight does not light up)
1. Headlight Bulb
2. Integration Relay
3. Light Control Switch
4. Wire Harness
BE-13
BE-17
Only one side light does not light.
1. Headlight Bulb
2. HEAD (LH, RH) Fuse (R/B No.2)
3. Wire Harness
ºLo-Beamº does not light.1. Headlight Dimmer Switch
2. Wire HarnessBE-17
ºHi-Beamº does not light.1. Headlight Dimmer Switch
2. Wire HarnessBE-17
ºFlashº does not light.1. Headlight Dimmer Switch
2. Wire HarnessBE-17
Page 159 of 1807
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-3
1981 Author: Date:
1997 SUPRA (RM502U)
CANADA:
HEADLIGHT AND TAILLIGHT SYSTEM
SymptomSuspect AreaSee page
Headlight does not light. (Taillight is normal)
1. Headlight Bulb
2. Headlight Control Relay (R/B No.2)
3. D.R.L. Relay
4. D.R.L. No.2 Relay (R/B No.2)
5. D.R.L. No.3 Relay
6. Integration Relay
7. Headlight Dimmer Switch
8. Light Control Switch
9. Wire Harness
BE-17
BE-17
BE-17
BE-17
BE-13
BE-17
BE-17
Headlight does not light.
(Taillight does not light up)
1. D.R.L. Relay
2. D.R.L. No.2 Relay (R/B No.2)
3. D.R.L. No.3 Relay
4. Integration Relay
5. Light Control Switch
6. Wire HarnessBE-17
BE-17
BE-17
BE-13
BE-17
Only one side light does not light.1. Headlight Bulb
2. Wire Harness
ºLo-Beamº does not light (ALL).1. Headlight Control Relay (R/B No.2)
2. Wire HarnessBE-17
ºLo-Beamº does not light (ONE SIDE).
1. Headlight Bulb
2. HEAD LH-LWR Fuse (R/B No.2)
3. HEAD RH-LWR Fuse (R/B No.2)
4. Wire Harness
ºHi-Beamº does not light (ALL).
1. D.R.L. Relay
2. D.R.L. No.2 Relay (R/B No.2)
3. D.R.L. No.3 Relay
4. Headlight Dimmer Switch
5. Wire HarnessBE-17
BE-17
BE-17
BE-17
ºHi-Beamº does not light (ONE SIDE).
1. Headlight Bulb
2. HEAD LH-UPR Fuse (R/B No.2)
3. HEAD RH-UPR Fuse (R/B No.2)
4. Wire Harness
ºFlashº does not light.
1. D.R.L. Relay
2. D.R.L. No.2 Relay (R/B No.2)
3. D.R.L. No.3 Relay
4. Headlight Dimmer Switch
5. Wire HarnessBE-17
BE-17
BE-17
BE-17
ºAuto Turn-of f Systemº dose not operate.
1. GAUGE Fuse (J/B No.1)
2. Integration Relay
3. Door Courtesy Switch (Driver's)
4. Wire Harness
BE-13
BE-28
Headlight does not light with light control SW in HEAD.
1. Integration Relay
2. D.R.L. Relay
3. D.R.L. No.2 Relay (R/B No.2)
4. D.R.L. No.3 Relay
5. Light Control Switch
6. Wire HarnessBE-13
BE-17
BE-17
BE-17
BE-17
Headlight does not go out with light control SW in OFF.1. Headlight Control Relay (R/B No.2)
2. Wire HarnessBE-17
Page 160 of 1807
BE-4
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
1982 Author: Date:
1997 SUPRA (RM502U) Taillight does not light with light control SW in TAIL.
1. Taillight Relay (J/B No.1)
2. Integration Relay
3. Light Control Switch
4. Wire HarnessBE-17
BE-13
BE-17
Taillight does not go out with light control SW in OFF.
1. Taillight Relay (J/B No.1)
2. Integration Relay
3. Light Control switch
4. Wire HarnessBE-17
BE-13
BE-17
Headlight and Taillight do not light with engine running and light
control SW in OFF.
1. GAUGE Fuse (J/B No.1)
2. Generator L Terminal
3. D.R.L. Relay
4. D.R.L. No.2 Relay (R/B No.2)
5. D.R.L. No.3 Relay
6. Parking Brake Switch
7. Wire Harness
BE-17
BE-17
BE-17
BE-43
FOG LIGHT SYSTEM
SymptomSuspect AreaSee page
Fog light does not light with light control SW HEAD.
(Headlight is normal.)
1. FOG Fuse (R/B No.2)
2. HEAD Fuse (R/B No.2)
3. Fog Light Relay (R/B No.2)
4. Fog Light Switch
5. Wire Harness
BE-23
BE-23
Fog light does not light with light control SW HEAD.
(Headlight does not light)1. Headlight and Taillight system
2. Wire HarnessBE-15
Only one light does not light.1. Bulb
2. Wire Harness
TURN SIGNAL HAZARD WARNING SYSTEM
SymptomSuspect AreaSee page
ºHazardº and ºTurnº do not light up.
1. Hazard Warning Switch
2. Turn Signal Flasher
3. Wire HarnessBE-26
BE-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. HAZ-HORN Fuse (R/B No.2)
2. Wire Harness
Hazard warning light does not light up in one direction.1. Hazard Warning Switch
2. Wire HarnessBE-26
Turn signal does not light up.
(Combination meter, wiper and washer do not operate.)
1. TURN Fuse (J/B No.1)
2. Ignition Switch
3. Turn Signal Switch
4. Wire Harness
BE-13
BE-26
Turn signal does not light up.
1. TURN Fuse (J/B No.1)
2. Turn Signal Switch
3. Wire Harness
BE-26
Turn signal does not light up in one direction.1. Turn Signal Switch
2. Wire HarnessBE-26
Only one bulb does not light up.1. Bulb
2. Wire Harness
Page 161 of 1807
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-5
1983 Author: Date:
1997 SUPRA (RM502U)
INTERIOR LIGHT SYSTEM
SymptomSuspect AreaSee page
Only one light does not light up.1. Bulb
2. Wire Harness
Interior light does not light up (All).
1. DOME Fuse (R/B No.2)
2. Integration Relay
3. Wire Harness
BE-28
ºIlluminated Entry Systemº does not operate.
1. Integration Relay
2. Door Courtesy Switch
3. Door Key Lock and Unlock Switch
4. Door Unlock Detection Switch
5. Wire HarnessBE-28
BE-28
DI-656
DI-638
Front personal light does not light up.
1. Bulb
2. Front Personal Light
3. Wire Harness
BE-28
Luggage room light does not light up.1. Bulb
2. Luggage Room Light Switch
BE-28
BACK-UP LIGHT SYSTEM
SymptomSuspect AreaSee page
Back Up Light does not light up.
1. Bulb
2. GAUGE Fuse (J/B No.1)
3. Ignition Switch
4. Back-up Light Switch (M/T)
5. Park/Neutral Position Switch (A/T)
6. Wire Harness
BE-13
BE-31
DI-354
DI-423
Back Up Light remains always on.1. Wire Harness
Only one light does not light up.1. Bulb
2. Wire Harness
STOP LIGHT SYSTEM
SymptomSuspect AreaSee page
Stop light does not light up.
1. Bulb
2. STOP Fuse (J/B No.1)
3. Stop Light Switch
4. Wire Harness
BE-33
Stop light remains always on.1. Stop Light Switch
2. Wire HarnessBE-33
Only one light does not light up.1. Bulb
2. Wire Harness
Page 162 of 1807
BE-6
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
1984 Author: Date:
1997 SUPRA (RM502U)
WIPER AND WASHER SYSTEM
SymptomSuspect AreaSee page
Wipers and washers do not operate.
1. WIPER Fuse (J/B No.1)
2. Ignition Switch
3. Wiper and Washer Switch
4. Wire Harness
BE-13
BE-35
Front wiper does not operate.
1. Front Wiper and Washer Switch
2. Front Wiper Motor
3. Wire HarnessBE-35
BE-35
Rear wiper does not operate.
1. Rear Wiper and Washer Switch
2. Rear Wiper Motor and Relay
3. Wire HarnessBE-35
BE-35
Front washer does not operate.
1. Front Wiper and Washer Switch
2. Washer Motor
3. Wire HarnessBE-35
BE-35
Rear washer does not operate.
1. Rear Wiper and Washer Switch
2. Washer Motor
3. Wire HarnessBE-35
BE-35
COMBINATION METER
METER, GAUGES AND ILLUMINATION:
SymptomSuspect AreaSee page
Tachometer, Fuel Gauge and Engine Coolant Temperature
Gauge do not operate.1. GAUGE Fuse (J/B No.1)
2. Meter Circuit
3. Wire Harness
BE-40
Speedometer does not operate.
1. Vehicle Speed Sensor
2. Meter Circuit
3. Wire HarnessBE-43
BE-40
Tachometer does not operate.
1. Igniter
2. ECM
3. Meter Circuit
4. Wire Harness
DI-1
DI-145
BE-40
Fuel Gauge does not operate or abnormal operation.
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Meter Circuit
4. Wire HarnessBE-43
BE-43
BE-40
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 HarnessBE-43
BE-43
BE-40
All illumination lights do not light up.
1. TAIL Fuse (J/B No.1)
2. Light Control Rheostat
3. Meter Circuit
4. Wire Harness
BE-43
BE-40
Only one illumination light does not light up.1. Bulb
2. Meter Circuit
BE-40
Page 163 of 1807
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-7
1985 Author: Date:
1997 SUPRA (RM502U)
WARNING LIGHTS:
SymptomSuspect AreaSee page
Warning lights do not light up.
(Except Discharge and Door Open)
1. Bulb
2. IGN Fuse (J/B No.1)
3. Ignition Switch
4. Meter Circuit
5. Generator
6. Wire Harness
BE-13
BE-40
Brake Warning Light does not light up.
1. Bulb
2. Brake Fluid Level Warning Switch
3. Parking Brake Switch
4. Bulb Check Relay
5. Meter Circuit
6. Wire Harness
BE-43
BE-43
BE-40
Seat Belt Warning Light does not light up.
1. Bulb
2. Seat Belt Buckle Switch
3. Integration Relay
4. Meter Circuit
5. Wire Harness
BE-43
BE-13
BE-40
Engine Oil Level Warning Light does not light up.
1. Bulb
2. Engine Oil Level Warning Switch
3. Meter Circuit
4. Wire Harness
BE-43
BE-40
Low Oil Pressure Warning Light does not light up.
1. Bulb
2. Low Oil Pressure Warning Switch
3. Meter Circuit
BE-43
BE-40
Door Open Warning Light does not light up.
1. Bulb
2. DOME Fuse (R/B No.2)
3. Door Courtesy Switch
4. Luggage Room Light Switch
5. Integration Relay
6. Meter Circuit
7. Wire Harness
BE-28
BE-28
BE-13
BE-40
Master Warning Light does not light up.
1. Bulb
2. Telltale Light Circuit
3. Meter Circuit
4. Wire Harness
BE-40
BE-40
INDICATOR LIGHTS:
SymptomSuspect AreaSee page
SRS Indicator Light does not light up.
1. Bulb
2. Center Airbag Sensor
3. Wire Harness
DI-555
ABS Indicator Light does not light up.
1. Bulb
2. Traction ECU
3. Wire Harness
DI-499
Malfunction Indicator Light does not light up.
1. Bulb
2. ECM
3. Wire Harness
DI-1
DI-145
TRAC OFF Indicator Light does not light up.
1. Bulb
2. Traction Solenoid Relay
3. Traction ECU
4. Wire Harness
DI-499
DI-499
Page 164 of 1807
BE-8
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
1986 Author: Date:
1997 SUPRA (RM502U) Security Indicator Light does not light up.
1. Light Emitting Diode
2. Theft Deterrent and Door Lock ECU
3. Wire Harness
DI-608
A/T Shift Position Indicator Light does not light up.
1. Bulb
2. Park/Neutral Position Switch
3. Light Control Rheostat
4. Meter Circuit
5. Wire Harness
DI-354
DI-423
BE-43
BE-40
MANU Indicator Light does not light up.
1. Bulb
2. ECM
3. Meter Circuit
4. Wire Harness
BE-40
O/D OFF Indicator Light does not light up.
1. Bulb
2. O/D Main Switch
3. ECM
4. Meter Circuit
5. Wire Harness
BE-43
DI-1
DI-145
BE-40
TRAC Indicator Light does not light up.
1. Bulb
2. ABS and Traction ECU
3. Meter Circuit
4. Wire Harness
BE-40
Turn Indicator Light does not light up.
1. Bulb
2. Turn Signal and Hazard Warning System
3. Meter Circuit
4. Wire Harness
BE-25
BE-40
High Beam Indicator Light does not light up.
1. Bulb
2. Headlight and Taillight System
3. Meter Circuit
4. Wire Harness
BE-15
BE-40
CRUISE Indicator Light does not light up.
1. Bulb
2. Cruise Control ECU
3. Meter Circuit
4. Wire Harness
DI-660
BE-40
SNOW Indicator Light does not light up.
1. Bulb
2. Traction ECU
3. Meter Circuit
4. Wire Harness
BE-40
ELECTRIC TENSION REDUCER SYSTEM
SymptomSuspect AreaSee page
Tension Reducer does not operate.
(Driver's and Passenger's)1. ECU-IG fuse (J/B No.1)
2. Wire Harness
Tension Reducer does not operate. (Only one side)
1. Buckle Switch
2. Tension Reducer Solenoid
3. Wire HarnessBE-54
BE-43
Page 182 of 1807
BE0DY-02
Z09367
Right Turn
Left Turn
Connector ºAº
BE1843
2
Turn Signal Light Bulbs (21W)13
Z09334
BE-26
- BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
2004 Author: Date:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT TURN SIGNAL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Left turnA1 - A5Continuity
Neutral-No continuity
Right turnA1 - A8Continuity
If continuity is not as specified, replace the switch.
2. INSPECT TURN SIGNAL FLASHER OPERATION
(a) Connect the terminal 2 to battery positive (+) terminal and
the terminal 3 to battery negative (-) terminal.
(b) Connect the 2 turn signal light bulbs parallel to each other
to terminals 1 and 3, check that the bulbs flash.
HINT:
The turn signal lights should flash between 60 and 120 times
per minute.
3. INSPECT HAZARD WARNING SWITCH CONTINUITY
ConditionTester connectionSpecified condition
Switch OFF7 - 10Continuity
Switch ON7 - 8
4 - 5 - 6 - 9Continuity
Illumination circuit2 - 3Continuity
If continuity is not as specified, replace the switch.
BE3QR-01
Page 184 of 1807
BE0E0-02
N08914
1
3
N08913
1
2
N08920
N08130
N08912
BE-28
- BODY ELECTRICALINTERIOR LIGHT SYSTEM
2006 Author: Date:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT INTERIOR LIGHT CONTINUITY
Switch positionTester connectionSpecified condition
DOOR1 - 3Continuity
OFF-No continuity
2. INSPECT PERSONAL LIGHT CONTINUITY
Switch positionTester connectionSpecified condition
OFF-No continuity
*ON1 - 2Continuity
* Set the interior light switch to OFF or DOOR.
If continuity is not as specified, replace the light assembly or
bulb.
3. INSPECT LUGGAGE ROOM LIGHT CONTINUITY
Switch positionTester connectionSpecified condition
OFF1 - 2No continuity
ON1 - 2Continuity
If continuity is not as specified, replace the light.
4. INSPECT DOOR COURTESY SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
ON (SW pin released)1 - 2 - 3Continuity
OFF
(SW pin pushed in)-No continuity
If continuity is not as specified, replace the switch.
5. INSPECT LUGGAGE ROOM LIGHT SWITCH CONTI-
NUITY
ConditionTester connectionSpecified condition
ON (SW pin released)1 - Switch bodyContinuity
OFF
(SW pin pushed in)1 - Switch bodyNo continuity
If continuity is not as specified, replace the switch.