relay TOYOTA SUPRA 1997 Service Owner's Guide

I02078
Cruise Control Indicator :Fuel Gauge
:Engine Coolant Temperature Gauge
:Tachometer
:Speedometer
D.R.L. :Daytime Running Light
* :Engine Oil Level Delay Circuit
F
E
T
S
F
E
T
S C8
A10
A11
A9
A8
A13
C11
C10
B13
B12
B2
A1
C7
C5
A14
A7
A6
A3
C1
C2
C13
A5P
R
N
D
2
LB4
B10
B6
B7
B8
B11
B1
C9
A16
C4
C6
A15
A2
B3
C12 Fuel Level Warning
MANU Indicator
O/D OFF Indicator
Brake Warning
Bulb Check Relay
TRAC Indicator
Right Turn Indicator
High Beam Indicator
Master Warning
Illumination
SNOW IndicatorLeft Turn Indicator
No. Wire Harness Side
Brake Fluid Level Warning Switch
Parking Brake Switch
USA:TAIL (RH) Fuse, PANEL Fuse
Headlight Dimmer Switch
ECT ECU
Cruise Control ECU
TRAC ECU
Ground (Engine)
Engine Coolant Temperature Sender Gauge
Fuel Sender Gauge
Ground (Signal)
Turn Signal Switch
Starter Relay Generator L Terminal Igniter
Park/Neutral Position Switch (A/T Vehicle) A1
2
3
5
6
7
8
9
10
11
13
14
15
16
BGAUGE Fuse
O/D OFF Switch
USA:TAIL (RH) Fuse, PANEL Fuse
Park/Neutral Position Switch (P)
Park/Neutral Position Switch (N)
ECT ECU
Ground (Power)
Park/Neutral Position Switch (D)
Park/Neutral Position Switch (2)
Park/Neutral Position Switch (L) Park/Neutral Position Switch (R) 1
2
3
6
7
8
10
11
124
13
Engine Oil Level Sensor
Turn Signal Switch
Ground (Power)
Fuel Sender Gauge
GAUGE Fuse
Vehicle Speed Sensor (Terminal 2)
Vehicle Speed Sensor (Terminal 3)
USA:TAIL (RH) Fuse, PANEL Fuse
Light Control Rheostat Telltail Light RH (Terminal 11)
Telltail Light LH (Terminal 1)
Telltail Light LH (Terminal 6) 1
2
6
7
8
10
11
124
135
9 CCANADA:D.R.L. No.3 Relay
Clutch Start Switch (M/T Vehicle)
CANADA:D.R.L. No.3 Relay
CANADA:D.R.L. No.3 Relay
- BODY ELECTRICALCOMBINATION METER
BE-41
2019 Author
: Date
:
1997 SUPRA (RM502U)

I02082I02081
I02080
I02079
I05022
Security Indicator
TRAC OFF Indicator
Low Oil Pressure Warning
Engine Oil Level Warning
Malfunction Indicator
ABS Indicator
No.
Combination Meter (Terminal B2)
ECM
ECM
Low Oil Pressure Warning Switch
Combination Meter (Terminal B4)
TRAC ECU, Traction Solenoid Relay
Ground
Theft Deterrent and Door Lock ECUWire Harness Side
1
2
3
4
5
6
8
9
10
No.Wire Harness Side
GAUGE Fuse
ECU-B Fuse
IGN Fuse
PANEL Fuse
Vehicle Speed Sensor (Terminal 3)
Ground
DOME Fuse
Light Control Rheostat
Combination Meter (Terminal B1)
Generator Terminal
Door Courtesy Switch
Integration Relay (Terminal 9)
Light Failure Sensor Center Airbag Sensor 1
2
3
4
5
6
8
107
11
12
14
15
16
18GAUGE Fuse
PPS ECU, Cruise Control ECU, ECM OD/TRIP
Meter
Open Door Warning
Seat Belt Warning
SRS Warning 8
6 5
3
4
110
2 9
7
10
5
14
18
12
16
15
114
6
1
8
3
2Air Conditioning Amplifier Telltale Light LH:
Telltale Light RH:
Rear Light Warning
Discharge Warning BE-42
- BODY ELECTRICALCOMBINATION METER
2020 Author
: Date
:
1997 SUPRA (RM502U)
2. TELLTALE LIGHT:

N08953
N08954
BE6219
Junction Block Side
Connector ºAº
- BODY ELECTRICALCOMBINATION METER
BE-51
2029 Author
: Date
:
1997 SUPRA (RM502U)
26. INSPECT INTEGRATION RELAY OPERATION
(a) Connect the positive (+) lead from the battery to terminals
1 and 7.
(b) Connect the positive (+) lead from the battery to terminal
9 through a 3.4 W test bulb.
(c) Check that the test bulb lights up and buzzer sounds for
4 - 8 seconds when the negative (-) lead from the battery
is connected to terminal 10.
(d) Check that the buzzer sounding in (c) stops when the
negative (-) lead from the battery is connected to terminl
8.
If operation is not as specified, replace the integration relay.
27. INSPECT RELAY CIRCUIT
Remove the relay from the junction block No. 1 and inspect the
connectors on the junction block side.
Tester connectionConditionSpecified condition
4 - GroundDriver's door openContinuity
4 - GroundDriver's door closeNo continuity
5 - GroundIgnition key SetContinuity
5 - GroundIgnition key removeNo continuity
8 - GroundDriver's seat belt fastenContinuity
8 - GroundDriver's seat belt unfastenNo continuity
10 - GroundConstantContinuity
1 - GroundConstantBattery positive voltage
9 - GroundIgnition switch position ONBattery positive voltage
9 - GroundIgnition switch position LOCK or ACCNo Voltage
If circuit is not as specified, tray replacing the relay with a new
one.

Z18235
Outer Rear View Mirror LH
Mirror DefoggerA/C Control Panel Assembly
Defogger Switch
Outer Rear View Mirror RH
Mirror Defogger
Rear Window Defogger Defogger Relay R/B No.4
MIR-HTR Fuse DEFOG Fuse GAUGE Fuse J/B No.1












BE0EC-01
- BODY ELECTRICALDEFOGGER SYSTEM
BE-55
2033 Author
: Date
:
1997 SUPRA (RM502U)
DEFOGGER SYSTEM
LOCATION

BE0ED-01
N08876
Connector B Connector A
10
7
N08877ON
Z05932
BE4029
Tester Probe
Heat Wire
TIn Foil BE-56
- BODY ELECTRICALDEFOGGER SYSTEM
2034 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT DEFOGGER SWITCH OPERATION
(a) Connect the positive (+) lead from the voltmeter to termi-
nal 7 of connector B and the negative (-) lead from volt-
meter to terminal 10 of connector B.
(b) When the switch is off, the voltage should be approx. 12
V.
(c) When the switch is on, check that the indicator light lights
up and that the voltage is less than 1 V.
(d) After 15 minutes, check that the switch is off and the volt-
age is approx. 12 V.
2. INSPECT A/C AMPLIFIER
See page DI-71 1
3. INSPECT DEFOGGER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 2Continuity
Apply B+ between
terminals 1 and 2.3 - 5Continuity
If continuity is not as specified, replace the relay.
4. INSPECT DEFOGGER WIRE
NOTICE:

When cleaning the glass, use a soft, dry cloth, and
wipe the glass in the direction of the wire. Take care
not to damage the wires.

Do not use detergents or glass cleaners with abrasive
ingredients.

When measuring voltage, wind a piece of tin foil
around the top of the negative probe and press the foil
against the wire with your finger, as shown.

Z18236
Power Window Switch
Power Window Motor POWER Fuse
Power Main Relay
Power Window Master Switch GAUGE Fuse DOOR FuseR/B No.2
J/B No.1

Power Window Motor





BE0EE-01
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE-59
2037 Author
: Date
:
1997 SUPRA (RM502U)
POWER WINDOW CONTROL SYSTEM
LOCATION

Z09157
Z09158
Z09159
Z09160
Z05930
3
21
53
5 21
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE-63
2041 Author
: Date
:
1997 SUPRA (RM502U)
8. Driver 's Door:
INSPECT PTC OPERATION
(a) Disconnect the connector from the master switch.
(b) Connect the positive (+) lead from the battery to terminal
9 and the negative (-) lead to terminal 10 on the wire har-
ness side connector and raise the window to the fully
closed position.
(c) Continue to apply voltage, and check that there is a PTC
operation noise within approximately 4 to 90 seconds.
(d) Reverse the polarity, and check that the window begins
to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
9. Passenger 's Door:
INSPECT PTC OPERATION
(a) Disconnect the connector from the power window switch.
(b) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 5 on the wire har-
ness side connector, and raise the window to the fully
closed position.
(c) Continue to apply voltage, and check that there is a PTC
operation noise within approximately 4 to 90 seconds.
(d) Reverse the polarity, and check that the window begins
to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
10. INSPECT POWER MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 2Continuity
Apply B+ between
terminals 1 and 2.3 - 5Continuity
If continuity is not as specified, replace the relay.

Z18233
Seat Heater Relay (for Driver's)
Seat Heater Relay (for Passenger's) Seat Heater Switch
SEAT-HTR Fuse
(Seat Cushion) Seat Heater
Seat Heater
(Seat Back) J/B No.1


BE0EK-01
- BODY ELECTRICALSEAT HEATER SYSTEM
BE-69
2047 Author
: Date
:
1997 SUPRA (RM502U)
SEAT HEATER SYSTEM
LOCATION

Z09262
Seat Back Side
Z09263
- BODY ELECTRICALSEAT HEATER SYSTEM
BE-71
2049 Author
: Date
:
1997 SUPRA (RM502U)
4. INSPECT SEAT BACK CONTINUITY
Inspect the seat heater continuity between terminals, as
shown.
Tester connectionConditionSpecified condition
1 - 3ConstantContinuity
2 - 4ConstantContinuity
If continuity is not as specified, replace the seat back pad.
5. INSPECT SEAT HEATER RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 3Continuity
Apply B+ between
terminals 1 and 3.2 - 4Continuity
If continuity is not as specified, replace the relay.

I01412
26 AntennaANTENNA DOES NOT FULLY EXTEND OR FULLY
RETRACT
Can you see any problem with the exterior of
the removed antenna eg. deformation, cracks?
When you extend or retract the antenna by
hand, do you feel any irregularity in its move-
ment? Remove the antenna cap. Can you remove
the antenna rod as discribed in the antenna
rod removal and replacement procedure?
Replace the antenna rod with the supplied parts
according to the antenna rod removal and re-
placement procedure.
Reinstall the removed antenna according to the antenna
rod removal and replacement procedure.
Then again check antenna rod operation using the radio
switch.
Replace fuses.
ACC wire harness faulty.
+B wire harness faulty. Are fuses OK?
Is ACC applied to motor antenna
control relay?
Is +B applied to motor antenna
control relay?NoYe s
IG wire harness faulty.
GND faulty. Is IG applied to motor antenna
control relay?
Is GND (Wire harness side ) to
motor antenna control relay OK?
CONTINUED ON NEXT PAGENo
No Ye s
Ye s
Ye s
Ye sNo
No
No
Ye s
Ye sNo
No
- BODY ELECTRICALAUDIO SYSTEM
BE-93
2071 Author
: Date
:
1997 SUPRA (RM502U)