1997 TOYOTA SUPRA fuses

BE1367
Medium Current Fuse and High Current Fuse
Equal Amperage Rating
V00076
Abbreviation Part Name Symbol Illustration
FUSE
MEDIUM CURRENT FUSE
HIGH CURRENT FUSE
FUSIBLE LINK
CIRCUIT BREAKERFUSE
M-FUSE
H-FUSE
FL
CB
- INTRODUCTIONREPAIR INSTRUCTIONS
IN-5
5 Author
: Date
:
1997 SUPRA (RM502U)
(h) Carefully observe all specifications for bolt tightening
torques. Always use a torque wrench.
(i) Use of special service tools (SST) and special service ma-
terials (SSM) may be required, depending on the nature
of the repair. Be sure to use SST and SSM where speci-
fied and follow the proper work procedure. A list of SST
and SSM can be found in the preparation part at the front
of each section in this manual.
(j) When replacing fuses, be sure the new fuse has the cor-
rect amperage rating. DO NOT exceed the rating or use
one with a lower rating.
(k) Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the prop-
er locations (See page IN-8).
(1) If the vehicle is to be jacked up only at the front or
rear end, be sure to block the wheels at the opposite
end in order to ensure safety.
(2) After the vehicle is jacked up, be sure to support it
on stands. It is extremely dangerous to do any work
on a vehicle raised on a jack alone, even for a small
job that can be finished quickly.

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)

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.

N08843N14677I04612
ECU-IG
CIG Junciton Block No.1
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-631
859 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION PROCEDURE
1 Check CIG and ECU-IG fuses.
PREPARATION:
Remove CIG and ECU-IG fuses from J/B No.1.
CHECK:
Check continuity of CIG and ECU-IG fuses.
OK:
Continuity
NG Check for short in all the harness and compo-
nents connected to the CIG and ECU-IG fuses
(See attached wiring diagram).
OK

8
B HOW TO USE THIS MANUAL
The Current Flow Chartº 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.
* The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
H POWER SOURCE (CURRENT FLOW CHART)
The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link, Circuit Breaker, Fuse,
etc.) and other parts.
The next page and following pages shown the parts to which each electrical source outputs current.
POWER SOURCE

Q08242
TOYOTA Hand-Held Tester
DLC3
P11446Fuel Inlet Hose
P12558
Fuel Inlet
Hose
SF0GH-01
Z13307
Fuel Inlet HoseSST
Gasket
SSTSST
Gasket(Union)
- SFI (2JZ-GTE)FUEL PUMP
SF-5
1331 Author
: Date
:
1997 SUPRA (RM502U)
FUEL PUMP
ON-VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect the TOYOTA hand-held tester to the DLC3.
(b) Turn the ignition switch ON and TOYOTA hand-held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(c) Select the ACTIVE TEST mode on the TOYOTA hand-
held tester.
(d) Please refer to the TOYOTA hand-held tester operator's
manual for further details.
(e) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector.
(See step 8)
(f) Check that there is pressure in the fuel inlet hose from the
fuel filter.
HINT:
If there is fuel pressure, you will hear the sound of fuel flowing.
If there is no pressure, check the following parts:

Fuses

EFI No.2 relay

Fuel pump

ECM

Wiring connections
(g) Turn the ignition switch to LOCK.
(h) Disconnect the TOYOTA hand- held tester from the
DLC3.
2. CHECK FUEL PRESSURE
(a) Check the battery voltage is above 12 V.
(b) Disconnect the negative (-) terminal cable from the bat-
tery.
(c) Remove the union bolt and 2 gaskets, disconnect the fuel
inlet hose from the fuel filter.
CAUTION:

Put a suitable container or shop towel under the fuel
filter.

Slowly loosen the union bolt.
(d) Install the fuel inlet hose and SST (pressure gauge) to the
fuel filter with the 3 gaskets and SST (union bolt).
SST 09268-45012
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
(e) Wipe off any splattered gasoline.

CH03L-01
P11586
Z18809
Except Maintenance-Free Battery
Z18810
Maintenance-Free BatteryVoltmeter
Z11580
Blue
OKWhite
Charging
NecessaryRed
Insufficient
Water Maintenance-Free Battery CH-2
- CHARGINGCHARGING SYSTEM
1525 Author
: Date
:
1997 SUPRA (RM502U)
ON-VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL
Check the electrolyte quantity of each cell.
Maintenance-Free Battery:
If under the lower level, replace the battery (or add distilled wa-
ter if possible). Check the charging system.
Except Maintenance-Free Battery:
If under the lower level, add distilled water.
2. Except Maintenance-Free Battery:
CHECK BATTERY SPECIFIC GRAVITY
Check the specific gravity of each cell.
Standard specific gravity: 1.25 - 1.29 at 20°C (68°F)
If the specific gravity is less than specification, charge the bat-
tery.
3. Maintenance-Free Battery:
CHECK BATTERY POSITIVE VOLTAGE
(a) After having driven the vehicle and in the case that 20
minutes have not passed after having stopped the en-
gine, turn the ignition switch ON and turn on the electrical
system (headlight, blower motor, rear defogger etc.) for
60 seconds to remove the surface charge.
(b) Turn the ignition switch OFF and turn off the electrical sys-
tems.
(c) Measure the battery positive voltage between the nega-
tive (-) and positive (+) terminals of the battery.
Standard voltage: 12.5 - 12.9 V at 20°C (68°F)
If the voltage is less than specification, charge the battery.
HINT:
Check the indicator as shown in the illustration.
4. CHECK BATTERY TERMINALS AND FUSES
(a) Check that the battery terminals are not loose or cor-
roded.
If the terminals are corroded, clean the terminals.
(b) Check the fuses for continuity.