Page 1509 of 1807
P11276
EFI Main
Relay
SF0HG-01
P07170
Ohmmeter
No
ContinuityContinuity
Ohmmeter 1
35
2
P07171Battery Ohmmeter
Continuity1
35
2 SF-54
- SFI (2JZ-GTE)EFI MAIN RELAY
1380 Author: Date:
1997 SUPRA (RM502U)
EFI MAIN RELAY
INSPECTION
1. REMOVE EFI MAIN RELAY
2. INSPECT EFI MAIN RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b) Check that there is no continuity between terminals 3 and
5.
If there is continuity, replace the relay.
3. INSPECT EFI MAIN RELAY OPERATION
(a) Apply battery positive voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
If there is no continuity, replace the relay.
4. REINSTALL EFI MAIN RELAY
Page 1510 of 1807
P11277
EFI No.2
Relay
SF0HH-01
P07170
Ohmmeter
No
ContinuityContinuity
Ohmmeter 1
35
2
P07171Battery Ohmmeter
Continuity1
35
2
- SFI (2JZ-GTE)EFI NO.2 RELAY
SF-55
1381 Author: Date:
1997 SUPRA (RM502U)
EFI NO.2 RELAY
INSPECTION
1. REMOVE EFI NO.2 RELAY
2. INSPECT EFI NO.2 RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b) Check that there is no continuity between terminals 3 and
5.
If there is continuity, replace the relay.
3. INSPECT EFI NO.2 RELAY OPERATION
(a) Apply battery positive voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
If there is no continuity, replace the relay.
4. REINSTALL EFI NO.2 RELAY
Page 1570 of 1807
P11569
Starter
Relay
ST04K-01
P07170
No
Continuity
5 OhmmeterContinuity
3
2 1
Ohmmeter
P07171
5 Continuity
3
2 1 Ohmmeter
Battery ST-16
- STARTINGSTARTER RELAY
1523 Author: Date:
1997 SUPRA (RM502U)
STARTER RELAY
INSPECTION
1. REMOVE STARTER RELAY (Marking: ST)
LOCATION: In the engine compartment relay box.
Remove the relay box cover and starter relay.
2. INSPECT STARTER RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b) Check that there is no continuity between terminals 3 and
5.
If there is continuity, replace the relay.
3. INSPECT STARTER RELAY OPERATION
(a) Apply battery positive voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
If there is no continuity, replace the relay.
4. REINSTALL STARTER RELAY
Page 1777 of 1807

SS0DF-02
- SERVICE SPECIFICATIONSBODY ELECTRICAL
SS-65
222 Author: Date:
1997 SUPRA (RM502U)
BODY ELECTRICAL
SERVICE DATA
INTEGRATION RELAY (Relay Circuit)
(Light Auto Turn Off System)
B2 - Ground (Constant)Battery positive voltage
B3 - Ground (Constant)Battery positive voltage
A7 - Ground (Ignition switch LOCK or ACC)No voltage
A7 - Ground (Ignition switch ON)Battery positive voltage
A1 - Ground (Constant)Battery positive voltage
DAYTIME RUNNING LIGHT MAIN RELAY
(Wire Harness Side)
2 - Ground (Ignition switch position LOCK or ACC)No voltage
2 - Ground (Ignition switch position ON)Battery positive voltage
11 - Ground (Engine stop)No voltage
11 - Ground (Engine running)Battery positive voltage
15 - Ground (Constant)Battery positive voltage
17 - Ground (Constant)Battery positive voltage
TURN SIGNAL FLASHER
Flashes/Minute60 - 120
INTEGRATION RELAY
(Interior Light System)
1 - Ground (Constant)Battery positive voltage
9 - Ground (Ignition switch position LOCK or ACC)No voltage
9 - Ground (Ignition switch position ON)Battery positive voltage
SPEEDOMETER (USING A SPEEDOMETER TESTER)
USA:
Standard indication (mph)Allowable range (mph)
2018 - 24
4038 - 44
6058 - 66
8078 - 88
10098 - 110
120118 - 132
CANADA:
Standard indication (km/h)Allowable range (km/h)
2017 - 24
4038 - 46
6057.5 - 67
8077 - 88
10096 - 109
120115 - 130
140134 - 151.5
160153 - 173
TACHOMETER (ON-VEHICLE)
Standard indication (rpm)Allowable range (rpm)
Page 1778 of 1807

SS-66
- SERVICE SPECIFICATIONSBODY ELECTRICAL
223 Author: Date:
1997 SUPRA (RM502U)700
630 - 770
1,000915 - 1,115
2,0001,920 - 2,220
3,0002,890 - 3,350
4,0003,940 - 4,400
5,0005,025 - 5,425
6,5006,650 - 6,950
7,0007,025 - 7,625
OD/TRIP METER
(Connector Connected)
1 - Ground (Ignition switch position ON)Battery positive voltage
4 - Ground (Light Control switch position TAIL or HEAD)Battery positive voltage
5 - 7 (Ignition switch ON and drive the vehicle slowly)0V e Battery positive voltage
6 - 7 (Ignition switch ON and drive the vehicle slowly)0V e more than 5V
8 - Ground (Constant)Battery positive voltage
10 - Ground (Ignition SW ON, Light Control SW TAIL or
HEAD and turn the Light Control Rheostat knob to clockwise)6V " 0V
FUEL RECEIVER GAUGE
Between terminalsResistance (W)
A - BApprox. 269.7
A - CApprox. 123.5
B - CApprox. 146.2
FUEL SENDER GAUGE
Float position: mm (in.)Resistance (W)
F: Approx. 33.8 (1.331)Approx. 4.0
1/2: Approx. 44.8 (1.764)Approx. 55.0
E: Approx. 141.1 (5.555)Approx. 107.0
ENGINE COOLANT TEMPERATURE RECEIVER GAUGE
Between terminalsResistance (W)
A - BApprox. 229.7
A - CApprox. 54.0
B - CApprox. 175.7
ENGINE COOLANT TEMPERATURE SENDER GAUGE
Temperature °C (°F)Resistance (W)
50 (122.0)160 - 240
120 (248.0)17.1 - 21.2
LIGHT FAILURE SENSOR
3 - Ground (Light Control SW position OFF)No voltage
3 - Ground (Light Control SW position TAIL or HEAD)Battery positive voltage
4 - Ground (Ignition SW position LOCK or ACC)No voltage
4 - Ground (Ignition SW position ON)Battery positive voltage
7 - Ground (Stop Light SW position OFF)No voltage
7 - Ground (Stop Light SW position ON)Battery positive voltage
8 - Ground (Engine stop)No voltage
8 - Ground (Engine running)Battery positive voltage
INTEGRATION RELAY
Page 1779 of 1807
- SERVICE SPECIFICATIONSBODY ELECTRICAL
SS-67
224 Author: Date:
1997 SUPRA (RM502U) (Seat Belt Warning)
1 - Ground (Constant)Battery positive voltage
9 - Ground (Ignition SW LOCK or ACC)No voltage
9 - Ground (Ignition SW ON)Battery positive voltage
ANTENNA MOTOR CONTROL RELAY
(Wire Harness Side)
1 - Ground (Constant)Battery positive voltage
4 - Ground (Ignition switch position ON)Battery positive voltage
5 - Ground (Ignition position ACC or ON)Battery positive voltage
7 - Ground (Ignition SW position ACC or ON and radio SW ON)Battery positive voltage
8 - Ground (Ignition SW position ACC or ON)Battery positive voltage