relay TOYOTA SUPRA 1997 Service Service Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1997, Model line: SUPRA, Model: TOYOTA SUPRA 1997Pages: 1807, PDF Size: 39.36 MB
Page 250 of 1807
I01413
CONTINUED FROM PREVIOUS PAGE
Is power source from radio OK?Check continuity between motor antenna
and radio receiver assembly.
Wire harness faulty.
Radio receiver assembly faulty. Inspect motor.
Motor antenna control relay faulty.
Motor faulty.No
Ye s
No
No
Ye sYe s
I01414
27
Antenna ANTENNA-RELA TED
Is the antenna cable connected securely to the radio?Connect the cable
Go to 26. No
Ye s
Normal Type
Does antenna rod extend fully when radio
Variable Length Type
Does antenna rod extend to the specified
radio switch is turned off?
Inspect glass printed antenna.
(w/ glass printed antenna)Glass printed antenna faulty. NG
OK
Is the antenna nut tight?
Temporarily install another antenna. Functions OK?
Radio receiver side faulty.Tighten nut.
Motor antenna faulty. switch is turned on?
Does antenna rod fully retract when the length when the radio switch is turned on.No
No Ye s
Ye s
Ye sYe s BE-94
- BODY ELECTRICALAUDIO SYSTEM
2072 Author: Date:
1997 SUPRA (RM502U)
Page 254 of 1807
BE0EQ-01
N07694
Wire Harness Side
N08852
BE-98
- BODY ELECTRICALANTENNA
2076 Author: Date:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT RELAY CIRCUIT
Disconnect the connector from the relay and inspect connector
on wire harness side, as shown in the chart.
If circuit is not as specified, replace the relay.
Tester connectionConditionSpecified condition
6 - GroundConstantContinuity
2 - 3ConstantContinuity
1 - GroundConstantBattery positive voltage
4 - GroundIgnition switch position ONBattery positive voltage
5 - GroundIgnition switch position ACC or ONBattery positive voltage
7 - GroundIgnition switch position ACC or ON
and radio switch ONBattery positive voltage
8 - GroundIgnition switch position ACC or ONBattery positive voltage
2. INSPECT MOTOR ANTENNA
(a) Install antenna nut.
(b) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 2.
(c) Check that the motor turns (moves upward).
NOTICE:
These tests must be done quickly (within 3 - 5 seconds) to
prevent the coil from burning out.
(d) Then, reverse the polarity, and check that the motor turns
the opposite way (moves downward).
NOTICE:
These tests must be done quickly (within 3 - 5 seconds) to
prevent the coil from burning out.
HINT:
When the motor is normal, lower the antenna to its lowest posi-
tion.
If operation is not as specified, replace the antenna motor as-
sembly.
Page 318 of 1807
BO0RI-01
N19398
Manual Seat:Front Seat Cushion
Inside Inner Shield
Seat Track
Cover Front Seat
Cushion Inside
Shield
Connecting
Tube
Front Seat Inner
Adjuster
Front Seat
Equalizing
Wire
Seat Track Cover
Front Seat outer Adjuster
Front Seat Cushion Inside Outer ShieldReclining Release
HandleSeat Track Cover Front Seat Cushion
Inside Outer ShieldPower Seat:
Seatback CoverSeatback Frame
Seatback Pad
Hog Ring
Seat Cushion Cover
Seat Cushion
Heater Relay
Seat Cushion Frame
Seat Track Cover
Front Seat Cushion
Inside Inner Shield
Front Seat Cushion
Inside Outer Shield Front Seat Cushion
Inner Shield
Front Seat Inner Belt
Front Seat Adjuster
Seat Track CoverSeat Track Cover
Power Seat Switch
Front Seat Cushion Inside Outer Shield
Seat Track Cover
Snap RingReclining
Release Handle
Power Seat
Switch Knob
Vertical Adjuste Knob Seat Wire Harness Motor Support Bracket Cover
Non-reusable part
18 (185, 13)
18 (185, 13)
37 (375, 27)
N´m (kgf´cm, ft´lbf): Specified torque
- BODYFRONT SEAT
BO-65
2145 Author: Date:
1997 SUPRA (RM502U)
FRONT SEAT
COMPONENTS
Page 359 of 1807
W02794
BR0HT-02
R09422
Sub-Wire Harness G (SST)
(SST)
Sub-Wire Harness L (SST)
Sub-Wire Harness I (SST) ABS
Actuator BR-72
- BRAKEABS ACTUATOR (2JZ-GTE)
1872 Author: Date:
1997 SUPRA (RM502U)
ABS ACTUATOR (2JZ-GTE)
ON-VEHICLE INSPECTION
HINT:
Using the ABS actuator checker (SST), check the operation of
the actuator. If the actuator does not operate, check the opera-
tion of sub-wire harness G according to instructions on pages
DI-509.. If the solenoid and/or pump motor relay are abnormal,
replace the relay and inspect the actuator operation again.
1. INSPECT BATTERY POSITIVE VOLTAGE
Battery positive voltage: 10-14 V
2. DISCONNECT 2 CONNECTORS FROM ACTUATOR
3. CONNECT ACTUATOR CHECKER (SST) TO ACTUA-
TOR
(a) Connect the actuator checker (SST) to the actuator side
wire harnesses via the sub-wire harnesses (SST), as
shown.
SST 09990-00150, 09990-00250, 09990-00300,
09990-00360
(b) Connect the red cable of the checker to the battery posi-
tive (+) terminal and black cable to the negative (-) termi-
nal. Connect the black cable of the sub-wire harnesses
to the battery negative (-) terminal or body ground.
Page 376 of 1807
Shift Lock ECUEngine Control
Module
(Engine ECU)Center Airbag
Sensor Assembly ABS
Deceleration
Sensor ABS and Traction ECU
(for 2JZ-GTE)Stereo Power
Amplifier Integration
RelayJ/B No. 1Traction ECU
(for 2JZ-GTE)
R/B No. 4 Daytime Running
Light Relay (Main)
(for Canada)Blower Control
RelayPPS ECU A/C AmplifierTheft Deterrent
ECU Cruise Control ECU Auto Antenna Control Relay
ABS ECU
(for 2JZ-GE)
Component to be alignedSection of repair manual
for relevant model year
Front Wheels
Suspension and Axle (SA) section
Rear Wheels
Suspension and Axle (SA) section
Propeller Shaft
Propeller Shaft (PR) section
3. DRIVE TRAIN AND CHASSIS2. BRAKE SYSTEM
The brake system is one of the most important safety components. Always follow the directions and
notes given in section BR of the repair manual for the relevant model year when handling brake
system parts.
NOTICE: When repairing the brake master cylinder or TRAC system, bleed the air out of the TRAC
system.
The drive train and chassis are components-that can have great effects on the running performance
and vibration resistance of the vehicle. After installing components in the sections listed in the table
below, perform alignments to ensure correct mounting angles and dimensions. Particularly accurate
repair of the body must also be done to ensure correct alignment.
HINT: Correct procedures and special tools are required for alignment. Always follow the directions
given in the repair manual for the relevant model year during alignment and section DI of this manual.
4. ECU (ELECTRONIC CONTROL UNIT)
Locations of ECUs
INTRODUCTIONIN-8
Page 377 of 1807
Light Failure Sensor Fuel Pump ECURear Wiper Relay
5. COMPONENTS ADJACENT TO THE BODY PANELS Locations of ECUs (Cont'd)
Many ECUs are mounted in this vehicle.
Take the following precautions during body repair to prevent damage to the ECUs.
Before starting electric welding operations, disconnect the negative (-) terminal cable from the battery.
When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio
systems will be cancelled. So before starting work, make a record of the contents memorized by each
memory system. Then when work is finished, reset the clock and audio systems as before.
When the vehicle has tilt and telescopic steering, power seat and outside rear view mirror, which are all
equipped with memory function, it is not possible to make a record of the memory contents.
So when the operation is finished, it will be necessary to explain this fact to the customer, and request
the customer to adjust the features and reset the memory.
Do not expose the ECUs to ambient temperatures above 80°C (176°F).
NOTICE: if it is possible the ambient temperature may reach 80°C (176°F) or more, remove the ECUs
from the vehicle before starting work.
Be careful not to drop the ECUs and not to apply physical shocks to them.
Various types of component parts are mounted directly on or adjacently to the body panels.
Strictly observe the following precautions to prevent damaging these components and the body panels
during handling.
Before repairing the body panels, remove their components or apply protective covers over the
components.
Before prying components off using screwdriver or a scraper, etc., attach protective tape to the tool
tip or blade to prevent damaging the components an the body paint.
Before removing components from the outer surface of the body, attach protective tape to the body
to ensure no damage to painted areas.
HINT: Apply touch-up paint to any damaged paint surfaces.
Before drilling or cutting sections, make sure that there are no wires, etc. on the reverse side.
INTRODUCTIONIN-9
Page 555 of 1807
S04468
Stop Below 91°C
S04469
Below 91°C
ECT Switch
ConnectorDisconnect
CO090-01
S04470
Above 100°C
RotateThermometer
S04471
Ammeter
Battery
Fan Connector 2.5 - 4.5 A
- COOLINGELECTRIC COOLING FAN (2JZ-GTE)
CO-29
1442 Author: Date:
1997 SUPRA (RM502U)
ELECTRIC COOLING FAN
(2JZ-GTE)
ON-VEHICLE INSPECTION
1. CHECK COOLING FAN OPERATION WITH LOW
TEMPERATURE (Below 91°C (196°F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and ECT switch, and check
for a separated connector or severed wire between the No.1 ra-
diator fan relay and ECT switch.
(c) Disconnect the ECT switch connector.
(d) Check that the cooling fan rotates.
If not, check the No.1 radiator relay, No.2 radiator fan relay,
cooling fan, fuses, and check for short circuit between the No.1
radiator fan relay and ECT switch.
(e) Reconnect the ECT switch connector.
2. CHECK COOLING FAN OPERATION WITH HIGH
TEMPERATURE (Above 100°C (212°F))
(a) Start the engine, and raise coolant temperature to above
100°C (212°F).
(b) Check that the cooling fan rotates.
If not, replace the ECT switch.
3. INSPECT COOLING FAN
(a) Disconnect the fan connector.
(b) Connect battery and ammeter to the cooling fan connec-
tor.
(c) Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage: 2.5 - 4.5 A
(d) Reconnect the fan connector.
Page 559 of 1807
P12291
No.1 Radiator
Fan Relay
CO095-01
P11929
Ohmmeter
No Continuity
Continuity1
2
43
Ohmmeter
P11928
Ohmmeter
Continuity1
2
43
Battery
P12292
No.2 Radiator
Fan Relay
P12133
No Continuity
Continuity 1 2
5 3 Ohmmeter
OhmmeterOhmmeter
Continuity
6 CO-34
- COOLINGRADIATOR FAN RELAY
1447 Author: Date:
1997 SUPRA (RM502U)
RADIATOR FAN RELAY (2JZ-GTE)
INSPECTION
1. w/ Auto Spoiler:
REMOVE LH HEADLIGHT
2. w/o Auto Spoiler:
REMOVE ENGINE UNDER COVER
3. INSPECT NO.1 RADIATOR FAN RELAY
(a) Remove the No.1 radiator fan relay. (Marking: RADIA-
TOR FAN RELAY)
(b) Inspect the No.1 radiator fan relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 3 and 4.
If there is no continuity, replace the relay.
(2) Check that there is no continuity between terminals
1 and 2.
If there is continuity, replace the relay.
(c) Inspect the No.1 radiator fan relay operation.
(1) Apply battery positive voltage across terminals 3
and 4.
(2) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
If there is no continuity, replace the relay.
(d) Reinstall the No.1 radiator fan relay
4. INSPECT NO.2 RADIATOR FAN RELAY
(a) Remove the No.2 radiator fan relay. (Marking:
A.B.S.(TRAC) RELAY)
(b) Inspect the No. 2 radiator fan relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 1 and 6.
If there is no continuity, replace the relay.
(2) Check that there is continuity between terminals 3
and 5.
If there is no continuity, replace the relay.
(c) Check that there is no continuity between terminals 2 and
5.
If there is continuity, replace the relay.
(d) Inspect the No.2 radiator fan relay operation.
(e) Apply battery positive voltage across terminals 1 and 6.
(1) Using an ohmmeter, check that there is no continu-
ity between terminals 3 and 5.
(2) If there is continuity, replace the relay.
(3) Check that there is continuity between terminals 2
and 5.
Page 576 of 1807
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-161
389 Author: Date:
1997 SUPRA (RM502U)
DTC CHART (Manufacture Controlled)
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
P1100
(DI-247)Barometric Pressure Sensor Cir-
cuit MAlfunctionECM
P1200
(DI-248)Fuel Pump Relay / ECU Circuit
Malfunction
Open or short in fuel pump ECU circuit
Fuel pump ECU
ECM power source circuit
Fuel pump
ECM
-
P1300
(DI-252)Igniter Circuit
MalfunctionOpen or short in IGF or IGT circuit from igniter to ECM
Igniter
ECM
P1335
(DI-257)Crankshaft Position Sensor
Circuit Malfunction (during
engine running)
Open or short in crankshaft position sensor circuit for NE sig-
nal
Crankshaft position sensor for NE signal
Starter
ECM
-
P1400
(DI-258)Sub Throttle Position Sensor
MalfunctionOpen or short in sub throttle position sensor circuit
Sub throttle position sensor
ECM
P1401
(DI-261)Sub Throttle Position Sensor
Range / Performance ProblemSub throttle position sensor
P1405
(DI-262)Turbo Pressure Sensor Circuit
MalfunctionOpen or short in turbo pressure sensor circuit
Turbo pressure sensor
ECM
P1406
(DI-265)Turbo Pressure Sensor Circuit
Range / Performance ProblemTurbo pressure sensor
P1511
(DI-266)Boost Pressure Low
Malfunction
Air intake (leakage or clogging)
Actuator (for waste gate valve, IACV control valve, exhaust
bypass valve and exhaust gas control valve)
Short in VSV for waste gate valve, IACV control valve, exhaust
bypass valve and exhaust gas control valve circuit
ECM
P1512
(DI-274)Boost Pressure High
Malfunction
Actuator (for waste gate valve and exhaust bypass valve)
Short in VSV for waste gate valve and exhaust bypass valve
circuit
ECM
P1520
(DI-279)Stop Light Switch Signal
MalfunctionShort in stop light switch signal circuit
Stop light switch
ECM
P1600
(DI-282)ECM BATT
MalfunctionOpen in back up power source circuit
ECM
*: .... MIL dose not light up
... MIL lights up
Page 584 of 1807
DI4SL-01
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-169
397 Author: Date:
1997 SUPRA (RM502U)
PROBLEM SYMPTOMS TABLE
When the malfunction code is not confirmed in the DTC check and the problem still can not be confirmed
in the basic inspection, then proceed to this step and perform troubleshooting according to the numbered
order given in the table below.
SymptomSuspect AreaSee page
Does not start (Engine does not crank)1. Starter and Starter relayST-14, ST-16
Does not start (No initial combustion)
1. ECM power source circuit
2. Fuel pump control circuit
3. Engine control module (ECM)DI-304
DI-248
IN-18
Does not start (No complete combustion)1. Fuel pump control circuitDI-248
Difficult to start (Engine cranks normally)
1. Starter signal circuit
2. Fuel pump control circuit
3. CompressionDI-301
DI-248
EM-3
Difficult to start (Cold engine)1. Starter signal circuit
2.Fuel pump control circuitDI-301
DI-248
Difficult to start (Hot engine)
1. Starter signal circuit
2. Fuel pressure control circuit
3. Fuel pump control circuitDI-301
DI-309
DI-248
Poor idling (High engine idle speed)1. A/C signal circuit
2. ECM power source circuitDI-722
DI-304
Poor idling (Low engine idle speed)1. A/C signal circuit
2. Fuel pump control circuitDI-722
DI-248
Poor idling (Rough idling)1. Compression
2. Fuel pump control circuitEM-3
DI-248
Poor idling (Hunting)1. ECM power source circuit
2. Fuel pump control circuitDI-304
DI-248
Poor Driveability (Hesitation/Poor acceleration)1. Fuel pump control circuit
2. A/T faultyDI-248
DI-391
Poor Driveability (Surging)1. Fuel pump control circuitDI-248
Engine stall (Soon after starting)1. Fuel pump control circuitDI-248
Engine stall (During A/C operation)1. A/C signal circuit
2. Engine control module (ECM)DI-722
IN-18