relay TOYOTA SUPRA 1997 Service Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 1997, Model line: SUPRA, Model: TOYOTA SUPRA 1997Pages: 1807, PDF Size: 39.36 MB
Page 780 of 1807
F02629F03349F03350
LOCK
Open
ContinuityA8A9
Continuity
F02629F03351F03352
OpenContinuity
A8 A9
(+)
(-) LOCK
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-489
717 Author: Date:
1997 SUPRA (RM502U)
INSPECTION PROCEDURE
2JZ-GE Engine:
Troubleshooting in accordance with the chart below for each trouble symptom.
ABS warning light does not light upGo to step 1
ABS warning light remains onGo to step 3
1 Check ABS warning light.
See Combination Meter Troubleshooting on page BE-2.
NG Replace bulb or combination meter assembly.
OK
2 Check ABS control (solenoid) relay.
PREPARATION:
Disconnect the connectors from ABS control (solenoid) relay.
CHECK:
Check continuity between each terminal of ABS control (sole-
noid) relay.
OK:
Terminals A9 - 1 and A8 - 3Continuity (Reference value 80 W)
Terminals A9 - 5 and A9 - 6Continuity
Terminals A9 - 2 and A9 - 5Open
CHECK:
(a) Apply battery positive voltage between terminals A9 - 1
and A8 - 3.
(b) Check continuity between each terminal of ABS solenoid
relay.
OK:
Terminals A9 - 5 and A9 - 6Open
Terminals A9 - 2 and A9 - 5Continuity
Page 781 of 1807
F02629F03353F03354
LOCK
(+)
(-)A9
DI-490
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
718 Author: Date:
1997 SUPRA (RM502U)
CHECK:
Connect the test lead to terminal A9 - 4 and the lead to
terminal A9 - 5. Check continuity between terminals.
OK:
Continuity
If there is no continuity, connect the test lead to terminal A9
- 4 and the lead to terminal A9 - 5. Recheck continuity be-
tween terminals.
NG Replace ABS control relay.
OK
Repair or replace and check for open in harness and connector between DLC1 and ABS control
(solenoid) relay and body ground (See page IN-28).
3 Is DTC output?
Check DTC on page DI-442.
YES Repair circuit indicated by the code output.
NO
4 Does ABS warning light go off if short pin is removed?
NO Check for short in harness and connector be-
tween warning light and DLC1 and ECU (See
page IN-28).
YES
Page 782 of 1807
F02629F03355
F03356
LOCK
Open
Continuity
Continuity
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-491
719 Author: Date:
1997 SUPRA (RM502U)
5 Check ABS control (solenoid) relay (See step No.2).
NG Replace ABS control relay.
OK
Repair or replace and check for short in harness and connector between DLC1 and ABS control
(solenoid) relay (See page IN-18).
2JZ-GTE Engine:
Troubleshoot in accordance with the chart below for each trouble symptom.
ABS warning light does not light upGo to step 1
ABS warning light remains onGo to step 3
1 Check ABS warning light.
See combination meter troubleshooting on page BE-2.
NG Replace bulb or combination meter assembly.
OK
2 Check ABS solenoid relay.
PREPARATION:
Remove solenoid relay from R/B No.5.
CHECK:
Check continuity between each terminal of ABS solenoid relay.
OK:
Terminals 4 and 6Continuity (Reference value 80 W)
Terminals 2 and 3Continuity
Terminals 1 and 3Open
Page 783 of 1807
F02629F03357F03358
LOCK
OpenContinuity
(-) (+)
F02629F03359F03360
LOCK
(-)
(+)
64 1 2
DI-492
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
720 Author: Date:
1997 SUPRA (RM502U)
CHECK:
(a) Apply battery positive voltage between terminals 4 and 6.
(b) Check continuity between each terminal of ABS solenoid
relay.
OK:
Terminals 2 and 3Open
Terminals 1 and 3Continuity
CHECK:
Connect the test lead to terminal 5 and the lead to terminal
3. Check continuity between the terminals.
OK:
Continuity
If there is not continuity, connect the test lead to terminal 5
and the lead to terminal 3. Recheck continuity between ter-
minals.
NG Replace ABS solenoid relay.
OK
Repair or replace and check for open in harness and connector between DLC1 and ABS solenoid
relay and body ground (See page IN-28).
3 Is DTC output?
Check DTC on page DI-442.
YES Repair circuit indicated by the code output.
NO
Page 784 of 1807
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-493
721 Author: Date:
1997 SUPRA (RM502U)
4 Does ABS warning light go off if short pin is removed?
NO Check for short in harness and connector be-
tween warning light and DLC1 and ECU (See
page IN-28).
YES
5 Check ABS solenoid relay (See step No.2).
NG Replace ABS control relay.
OK
Repair or replace and check for short in harness and connector between DLC1 and ABS solenoid
relay (See page IN-28).
Page 794 of 1807
DI4VS-01
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI-503
731 Author: Date:
1997 SUPRA (RM502U)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Using SST 09843-18020, connect the terminals Tc and E
1.
If a malfunction code is displayed during the DTC check, check the circuit listed for that code. For details
of each code, turn to the page referred to under the ºSee pageº for the respective ºDTC No.º in the DTC chart.
DTC No.
(See Page)Detection ItemTrouble Area
11
(DI-509)Throttle control relay circuit open
Throttle control relay
TRAC fuse
Wire harness and connector (throttle control relay circuit)
Throttle control ECU
12
(DI-509)Throttle control relay circuit short
Throttle control relay
Wire harness and connector (throttle control relay circuit)
Throttle control ECU
21
(DI-513)Sub-throttle valve motor circuit open or short
Sub-throttle valve motor
Wire harness and connector (sub-throttle valve motor and
E01 circuit)
Throttle control ECU
22
(DI-513)Sub-throttle valve motor malfunction
Sub-throttle valve motor
Sub-throttle valve
Sub-throttle position sensor
Wire harness and connector (E1 circuit)
Throttle control ECU
23
(DI-516)Throttle body malfunction
Sub-throttle valve
Sub-throttle position sensor
Throttle control ECU
24
(DI-519)Sub-throttle position sensor leakage/sub-throttle valve stuck
Sub-throttle valve
Sub-throttle position sensor
Wire harness and connector (E1 circuit)
Throttle control ECU
31
(DI-522)Throttle position sensor signal malfunction
Throttle position sensor
Wire harness and connector (throttle position senor and E1
circuit)
Throttle control ECU
32
(DI-526)Sub-throttle position sensor signal malfunction
Sub-throttle position sensor
Sub-throttle valve motor
Sub-throttle valve
Wire harness and connector (sub-throttle position senor and
E1 circuit)
Throttle control ECU
41
(DI-530)Engine revolution signal open or short
Wire harness and connector (NE circuit)
ECM
Throttle control ECU
42
(DI-532)ECM malfunction
Wire harness and connector (EFIF circuit)
ECM
Throttle control ECU
43
(DI-534)ECM communication circuit malfunction
Wire harness and connector (EFI+ and EFI- circuit)
ECM
Throttle control ECU
51
(DI-535)Power source voltage down
(sub-throttle valve in a bad condition)Wire harness and connector (+B and E01 circuit)
Throttle control ECU
Page 796 of 1807
DI4VT-01
W02272
Rear Speed Sensor Rotor SLIP Indicator Light
TRAC OFF Indicator Light
SNOW Indicator Light
Throttle Control Relay
(TRAC Solenoid Relay)TRAC OFF
Switch SNOW Mode
Switch
ABS ECU
ECM Throttle Control ECU
DLC1
Throttle Position Sensor
Sub-throttle
Position Sensor
Front Speed Sensor Rotor
Sub-throttle Valve MotorFront Speed SensorFront Speed Sensor RotorRear Speed Sensor
DLC2
Front Speed Sensor
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI-505
733 Author: Date:
1997 SUPRA (RM502U)
PARTS LOCATION
Page 800 of 1807
DI4VW-01
F03368
Throttle Control
ECU R/B No.5
Throttle Control Relay
(TRAC Solenoid Relay)
R/B
No.2
Battery+B
RLY-
RLY+
E01 9
12
4
13
BR L-B BR-BL-R 14
11
12
L-B L-Y L-R
BR-B
B2
1
2A5
4
2
13
IB5
T16
T15
EC 51
65
5
IB5
IB5T16
T16
TRAC
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI-509
737 Author: Date:
1997 SUPRA (RM502U)
CIRCUIT INSPECTION
DTC 11, 12 Throttle Control Relay Circuit
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
11Instead of throttle control relay is ON, voltage at +B of ECU
terminal does not output 4 V or more for 1 sec. or more.
Throttle control relay
TRAC fuse
Wire harness and connector (throttle control relay circuit)
Throttle control ECU
12Instead of throttle control relay is OFF, voltage at +B of ECU
terminal outputs 4 V or more for 2 sec. or more.Throttle control relay
Wire harness and connector (throttle control relay circuit)
Throttle control ECU
WIRING DIAGRAM
Page 801 of 1807
F03369
R/B No.2
TRAC
F03370BE6053F06762
LOCK
R/B No.5
(-) (+)
DI-510
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
738 Author: Date:
1997 SUPRA (RM502U)
INSPECTION PROCEDURE
1 Check TRAC fuse.
PREPARATION:
Remove TRAC fuse from R/B No.2.
CHECK:
Check continuity of TRAC fuse.
OK:
Continuity
NG Check for short in all harness and components
connected to TRAC fuse.
OK
2 Check voltage between terminal 1 of R/B No.5 (for throttle control relay).
PREPARATION:
Remove throttle control relay from P/B No.5.
CHECK:
Measure voltage between terminal 1 of R/B No.5 (for throttle
control relay).
OK:
Voltage: 10 - 14 V
NG Repair or replace harness or connector.
OK
Page 802 of 1807
F03372F03373F03374
F03375
3
61
4
Open
Continuity
Continuity
31
4
61 3
64
- DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI-51 1
739 Author: Date:
1997 SUPRA (RM502U)
3 Check throttle control relay.
PREPARATION:
Remove throttle control relay from R/B No.5
CHECK:
Check continuity between each terminal of throttle control relay.
OK:
Terminals 4 and 6Continuity (Reference value 80 W)
Terminals 1 and 3Open
CHECK:
(a) Apply battery voltage between terminals 4 and 6.
(b) Check continuity between terminals.
OK:
Terminals 1 and 3Continuity
NG Replace throttle control relay.
OK