1997 TOYOTA SUPRA engine

F00007
E1
Tc
Ts
lei-23-1-A
DLC1
BR3904
0.13 sec.
0.13 sec.
ON
OFF
BR3893
Malfunction Code (Example Code 72, 76)
7276
ON
OFF
0.5 sec.
0.5 sec.1.5 sec.
0.5 sec.0.5 sec.2.5 sec.
4 sec.
Repeat DI-444
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
672 Author
: Date
:
1997 SUPRA (RM502U)
2. SPEED SENSOR SIGNAL AND DECELERATION SEN-
SOR
(a) Check the speed sensor signal and deceleration sensor.
(1) Turn the ignition switch OFF
(2) Using SST, connect terminal Ts and E1 of DLC1.
SST 09843-18020
(3) Start the engine.
(4) Check that the ABS warning light blinks.
HINT:

If the ABS warning light does not blink, inspect the ABS
warning light circuit (See page DI-488).

If the ABS warning light is always on, inspect and repair,
deceleration sensor.
(5) Drive the vehicle faster than 45 km/h (28 mph) for
several seconds.
(6) Stop the vehicle.
(7) Using SST, connect terminals Tc an E1 of DLC1.
SST 09843-18020
(8) Read the number of blinks of the ABS warning light.
HINT:

See the list of DTC shown on the next page.

If every sensor is normal, a normal code is output (A cycle
of 0.25 sec. ON and 0.25 sec. OFF is repeated).

If 2 or more malfunctions are indicated at the same time,
the lowest numbered code will be displayed 1st.
(9) After doing the check, disconnect terminals Ts and
E1, Tc and E1 of DLC1, and turn ignition switch OFF.

FI6997
TOYOTA
Hand-held
tester
DLC2
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-445
673 Author
: Date
:
1997 SUPRA (RM502U)
(b) Using TOYOTA hand-held tester, check the DTC.
(1) Do step (1) - (6) on the previous page.
(2) Hook up the TOYOTA hand- held tester to the
DLC2.
(3) Read the DTC by following the prompts on the tes-
ter screen.
Please refer to the TOYOTA hand-held tester oper-
ator 's manual for farther details.
DTC of speed sensor check function:
Code No.DiagnosisTrouble Area
71Low output voltage of right front speed sensor

Right front speed sensor

Sensor installation

Sensor Rotor
72Low output voltage of left front speed sensor

Left front speed sensor

Sensor installation

Sensor Rotor
73Low output voltage of right rear speed sensor

Right rear speed sensor

Sensor installation

Sensor Rotor
74Low output voltage of left rear speed sensor

Left rear speed sensor

Sensor installation

Sensor Rotor
75Abnormal change in output voltage of right front speed sensor
Right front speed sensor rotor
76Abnormal change in output voltage of left front speed sensor
Left front speed sensor rotor
77Abnormal change in output voltage of right rear speed sensor
Right rear speed sensor rotor
78Abnormal change in output voltage of left rear speed sensor
Left rear speed sensor rotor
79*Deceleration sensor is faulty
Deceleration sensor

Sensor installation
*: SPORT ABS (2JZ-GTE Engine) only

DI-448
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
676 Author
: Date
:
1997 SUPRA (RM502U)
*1: Short ABS (2JZ-GTE Engine) only
*2: As DTC cannot be erased by replacing parts alone, do either of the following operations.

Clear DTC (See page DI-442).

At the vehicle speed of 20 km/h (12 mph), drive the vehicle for 30 sec. or more.

DI4V8-01
W02807
2JZ-GE:
2JZ-GTE:
2JZ-GTE:SPORT AVS (2JZ-GTE Engine):
ABS Control
Relay
ABS Solenoid
Relay
ABS Motor RelayABS ActuatorDeceleration Sensor
ABS Warning Light
ABS ECU
DLC1DLC2
Front Speed Sensor RotorRear Speed SensorRear Speed
Sensor Rotor
Front Speed Sensor
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-449
677 Author
: Date
:
1997 SUPRA (RM502U)
PARTS LOCATION

DI7HM-01
W01411
1 2 3 4 5 6
7 8 9 10 11 121 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 A18
A19
DI-450
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
678 Author
: Date
:
1997 SUPRA (RM502U)
TERMINALS OF ECU
NORMAL ABS (2JZ-GE Engine):
Symbols (Terminal No.)STD Voltage (V)Condition
IG1 (A18-2) - GND (A19-2,13)10 - 14IG switch ON
SR (A19-18) - R+ (A19-8)Below 1.5IG switch ON, ABS warning light OFF
MR (A19-7) - R+ (A19-8)10 - 14IG switch ON
SFRH (A19-4) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
SFRR (A19-1) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
SFLH (A19-10) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
SFLR (A19-11) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
SRR (A19-22) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
SRH (A19-21) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
AST (A19-16) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
WA (A18 4) GND (A19 2 13)Below 2.0IG switch ON, ABS warning light ONWA (A18-4) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
STP (A18 12) GND (A19 2 13)Below 1.5Stop light switch OFFSTP (A18-12) - GND (A19-2,13)8 - 14Stop light switch ON
D/G (A18-11) - GND (A19-2,13)10 - 14IG switch ON, ABS warning light OFF
MT (A19-9) - GND (A19-2,13)Below 1.5IG switch ON
Tc (A18-9) - GND (A19-2,13)10 - 14IG switch ON
Ts (A18-8) - GND (A19-2,13)10 - 14IG switch ON
FR+ (A19-3) - FR- (A19-14)AC generationIG switch ON
Slowly turn right front wheel
FL+ (A19-19) - FL- (A19-20)AC generationIG switch ON
Slowly turn left front wheel
RR+ (A18-1) - RR- (A18-7)AC generationIG switch ON
Slowly turn right rear wheel
RL+ (A18-3) - RL- (A18-10)AC generationIG switch ON
Slowly turn left rear wheel

W02803
1 2 3 4 5
6
7
8
9 10 11
121
2 3 4 5
6 7 8 9
10
11 12 13
14 15 16
17 18
19 20 21 22 A21
A20
23
24 25 26
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-451
679 Author
: Date
:
1997 SUPRA (RM502U)
Sport ABS (2JZ-GTE Engine):
Symbols (Terminal No.)STD Voltage (V)Condition
IG1 (A20-13) - GND (A20-12,25)10 - 14IG switch ON
SR (A21-7) - R+ (A20-26)10 - 14IG switch ON, ABS warning light OFF
MR (A21-1) - R+ (A20-26)Below 1.0IG switch ON
SFRH (A20-2) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SFRR (A20-1) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SFLH (A21-5) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SFLR (A21-6) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SRRH (A21-11) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SRRR (A21-12) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SRLH (A20-15) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
SRLR (A20-14) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
AST (A21-4) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
WA (A20 11) GND (A20 12 25)Below 2.0IG switch ON, ABS warning light ONWA (A20-11) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
STP (A20 5) GND (A20 12 25)Below 1.5Stop light switch OFFSTP (A20-5) - GND (A20-12,25)8 - 14Stop light switch ON
D/G (A20-24) - GND (A20-12,25)10 - 14IG switch ON, ABS warning light OFF
MT (A21-10) - GND (A20-12,25)Below 1.5IG switch ON
Tc (A20-8) - GND (A20-12,25)10 - 14IG switch ON
Ts (A20-21) - GND (A20-12,25)10 - 14IG switch ON
FR+ (A21-3) - FR- (A21-9)AC generationIG switch ON
Slowly turn right front wheel
FL+ (A21-8) - FL- (A21-2)AC generationIG switch ON
Slowly turn left front wheel
RR+ (A20-10) - RR- (A20-23)AC generationIG switch ON
Slowly turn right rear wheel
RL+ (A20-22) - RL- (A20-9)AC generationIG switch ON
Slowly turn left rear wheel
FRO (A20-7) - GND (A20-12,25)Pulse generationVehicle driving at about 30 km/h (19 mph)
FLO (A20-20) - GND (A20-12,25)Pulse generationVehicle driving at about 30 km/h (19 mph)
RRO (A20-6) - GND (A20-12,25)Pulse generationVehicle driving at about 30 km/h (19 mph)
RLO (A20-19) - GND (A20-12,25)Pulse generationVehicle driving at about 30 km/h (19 mph)
GL1 (A20-4) - GND (A20-12,25)0.5 - 4.5 VIG switch ON
GL2 (A20-16) - GND (A20-12,25)0.5 - 4.5 VIG switch ON
VGS (A20-3) - GND (A20-12,25)4.5 - 5.5 VIG switch ON

F02626F02627
F02628
R/B
No.2
Battery
B
W-BW-BW-B
EAA6A6 A6
A6
A6 A9 A8 A9 A9A8 A8
A8
A9
IB6
IB6
IB6A19
A19
A19
2A 1
ALT
12
2ABS No.1
2RR1
2
6ABS Control Relay
4
3
1 Solenoid
Relay
DLC1 L-B
L-B V-WV-W VV7
8
18ABS ECU
MR
R+
SR
AST
MT 16
9
A19
A19Y-G
G-W 2
13
1
6 5
IB6
IB6 Y-G
G-W 5
3
ABS ActuatorABS ECU 5
4 2
2
L
L-W
Motor
Relay
R/B
No.2
ABS No.1 ALT
2A 11
11
22
2
Battery
B
RR/B No.5
ABS Solenoid
Relay
W-B5
5
555
5 1
2
354 6
DLC1 L-B L-B
V-W
V-W IB6
IB6 6
5 1
13
IB6
A21
A20
7
26
A214
Y-G
Y-GA65ABS ECU
L-WA64
ABS Actuator
EA
SR
R+ABS ECU 2JZ-GE Engine (NORMAL ABS):
2JZ-GTE Engine (SPORT ABS):R
AST DI-454
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
682 Author
: Date
:
1997 SUPRA (RM502U)
WIRING DIAGRAM

F02629F02630F02631
LOCK
A9
(+)
(-)
W02799
ABS Solenoid
Relay
ABS
Actuator
ECUA9
A6A6
A6A6
A19
16
5
4
5
4
5
- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM
DI-455
683 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION PROCEDURE (2JZ-GE Engine)
1 Check voltage between terminals A9 - 2 and A9 - 6 of ABS control (solenoid)
relay connector.
PREPARATION:
Disconnect the ABS control (solenoid) relay connector.
CHECK:
Measure voltage between terminals A9 - 2 and A9 - 6 of ABS
control (solenoid) relay harness side connector.
OK:
Voltage: 10 - 14 V
NG Check and repair harness or connector.
OK
2 Check continuity between terminal A9 - 5 of ABS control (solenoid) relay con-
nector and terminal A19 - 16 of ABS ECU.
CHECK:
Check continuity between terminal A9 - 5 of ABS control (sole-
noid) relay connector and terminal A19 - 16 of ABS ECU.
OK:
Continuity
HINT:
There is a resistance of 26 ~ 40 W between terminals A6 - 4 and
A6 - 5 of ABS actuator.
NG Repair or replace harness or ABS actuator.
OK