Page 2949 of 4770

F07217
Engine Room R/B No. 3
ABS Solenoid Relay
3
ABS
Actuator
A4 1
2
5 BatteryGAUGE Instrument Panel J/B
J/C
J4
D
ABS ECU 33 3 3
EA34 6
ABS ECUD
IK28
R±L
II3 4
DLC1 R±L
G±B
II3 5 Short
Pin
W±B
ABS ECU W±L
G±B
C
CC R±L
R±L 1D2
7
4
R±L
A19WA IG3 12
11 G±B 4
G±B C10
C10
J/C
J29ABS Warning
Light
23
22 R±L
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
DI±529
764 Author: Date:
ABS Warning Light Circuit
CIRCUIT DESCRIPTION
If the ECU detects trouble, it lights the ABS warning light while at the same time prohibiting ABS control. At
this time, the ECU records a DTC in memory.
After removing the short pin of the DLC1, connect terminals Tc and E
1 of the DLC1 or DLC2 to make the
ABS warning light blink and output the DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
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 Repair bulb or combination meter assembly.
OK
DI03Q±03
Page 2950 of 4770

F00043
1 2 3
4 5 6
1 2 3
4 5 6
1 2 3
4
65 Open
Continuity
Continuity
Continuity
Open
(+)(±)
(+) (±)1 2 3
4 5 6 Continuity
DI±530
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
765 Author: Date:
2 Check ABS solenoid relay.
PREPARATION:
Remove ABS solenoid relay from Engine Room R/B No. 3.
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
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 no 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
Check for open circuit in harness and connector between DLC1, ABS solenoid relay and body
ground (See page IN±31).
Page 2954 of 4770
F00172
J/C
EC BRA
ABR
3
16 DLC1
Ts E
1
R±Y
II38
R±Y
A198
TsABS ECU
J22: (1MZ±FE)
J23: (5S±FE)
J/C
BRA
ABR
3
16 DLC1
Ts E
1
R±Y
II38
R±Y
A198
TsABS ECU
J22: (1MZ±FE)
J23: (5S±FE)
AB0119S08096
F00446DLC1 DLC1
DLC1
DLC1DLC1
Ts
DLC1 E1
ON
DI±534
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
769 Author: Date:
Ts Terminal Circuit
CIRCUIT DESCRIPTION
The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with
the DTC check.
Connecting terminals Ts and E
1 of the DLC1 in the engine compartment starts the check.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Ts and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Ts and E
1 of DLC1.
OK:
Voltage: 10 ± 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, the ECU may be defec-
tive.
NG
DI03S±03
Page 2960 of 4770

BR3890
F02201
DLC1
TsTc E1
BR3904
0.13 sec. 0.12 sec.
ON
OFF DI±540
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
775 Author: Date:
(d) Clear the DTC.
(1) Using SST, connect terminals Tc and E
1 of DLC2 or
DLC1.
SST 09843 ± 18020
(2) Turn the ignition switch ON.
(3) Clear the DTC stored in ECU by depressing the
brake pedal 8 or more times within 3 seconds.
(4) Check that the warning light shows the normal
code.
(5) Remove the SST from the terminals of DLC2 or
DLC1.
SST 09843 ± 18020
HINT:
Cancellation cannot be done by removing the battery cable or
ECU±B fuse.
2. SPEED SENSOR SIGNAL
(a) Check the speed sensor signal.
(1) When the ignition switch is turned ON, check that
the ABS warning light goes on for 2 seconds.
(2) Turn the ignition switch OFF.
(3) Using SST, connect terminals Ts and E
1 of DLC1.
SST 09843 ± 18020
(4) Start the engine.
(5) 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±565).
(6) Drive vehicle straight forward.
HINT:
Drive vehicle at 45 ± 55 km/h (28 ± 34 mph) for several seconds.
If the brake is applied during the check, the check routine must
be started again.
(7) Stop the vehicle.
(8) Turn the ignition switch OFF.
(9) Disconnect the SST from terminals Ts and E
1 and,
connect the SST to terminals Tc and E
1 of DLC1.
SST 09843 ± 18020
(10) Turn the ignition switch ON.
(11) Read the number of blinks of the ABS warning light.
Page 2966 of 4770

DI040±08
F03949
Actuator Assembly
BatteryActuator Assembly
MAINB±GF4 1 ALT
FL
Block 1F5 B±G3
ABS
12 3
Engine
Room R/B
No.3L
L
18
A6
+B+BA6
Valve Relay
Motor Relay17
A6 16 GND2
W±BEA
W±B
W±B 19
A6GND1 ECU DI±546
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
781 Author: Date:
CIRCUIT INSPECTION
DTC 11 ABS Solenoid Valve Relay Circuit
CIRCUIT DESCRIPTION
This relay supplies power to each ABS solenoid. After the ignition switch is turned ON, if the initial check is
OK, the relay goes on.
DTC No.DTC Detecting ConditionTrouble Area
11
Detection of any conditions from 1. through 3.:
1. 3 or more solenoid valves are shown faulty in response
and simultaneously valve supply voltage is detected
faulty.
2. Solenoid valve relay will not be switched OFF.
3. Valve relay is frozen in spite of its high valve relay sup-
ply voltage.
ABS solenoid valve relay
Valve supply voltage
ECU
Fail safe function:
If trouble occurs in the ABS solenoid valve relay circuit, the ECU cuts off current to the ABS solenoid valve
relay and prohibits ABS control.
WIRING DIAGRAM
Page 2970 of 4770
F03949
Actuator Assembly
BatteryActuator Assembly
MAINB±GF4 1 ALT
FL
Block 1F5 B±G3
ABS
12 3
Engine
Room R/B
No.3L
L
18
A6
+B+BA6
Valve Relay
Motor Relay17
A6 16 GND2
W±BEA
W±B
W±B 19
A6GND1 ECU DI±550
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
785 Author: Date:
DTC 21, 22, 23, 24 ABS Solenoid Valve Circuit
CIRCUIT DESCRIPTION
This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel
cylinders thus controlling the braking force.
DTC No.DTC Detecting ConditionTrouble Area
21, 22, 23, 24Solenoid valve signal does not match to the check result.Each solenoid valve
Fail safe function:
If trouble occurs in the actuator solenoid valve circuit, the ECU cuts off current to the ABS solenoid valve
relay and prohibits ABS control.
WIRING DIAGRAM
DI042±08
Page 2979 of 4770
F00073
ECU±IG
Instrument
Panel J/BECU±IG
Instrument
Panel J/BECU±IG
Instrument
Panel J/B
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±559
794 Author: Date:
INSPECTION PROCEDURE
1 Check ECU±IG fuse.
PREPARATION:
Remove ECU±IG fuse from Instrument Panel J/B.
CHECK:
Check continuity of ECU±IG fuse.
OK:
Continuity
NG Check for short circuit in all the harness and
components connected to ECU±IG fuse (See
the attached wiring diagram.)
OK
2 Check battery positive voltage.
OK:
Voltage: 10 ± 14 V
NG Check and repair the charging system
5S±FE engine: (See page CH±1)
1MZ±FE engine: (See page CH±1).
OK
Page 2989 of 4770
F00095
11ECU
R±Y
AA6 IK2
3
J/CDLC1
BR
Ts
J22: (1MZ±FE)16
EC5
E
1Ts
BRAII38
J23: (5S±FE)R±Y
11ECU
R±Y
AA6 IK2
3
J/CDLC1
BR
Ts
J22: (1MZ±FE)165
E
1Ts
BRAII38
J23: (5S±FE)R±Y B±Y (1MZ±FE)
LG (5S±FE)
AB0119S08096
F00446DLC1 DLC1
DLC1
DLC1
DLC1
Ts
DLC1 E1
ON
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
DI±569
804 Author: Date:
Ts Terminal Circuit
CIRCUIT DESCRIPTION
The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with
the DTC check.
Connecting terminals Ts and E
1 of the DLC1 in the engine compartment starts the check.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check voltage between terminals Ts and E1 of DLC1.
CHECK:
(a) Turn the ignition switch ON.
(b) Measure voltage between terminals Ts and E
1 of DLC1.
OK:
Voltage: 10 ± 14 V
OK If ABS warning light does not blink even after Ts
and E
1 are connected, the ECU may be defec-
tive.
NG
DI04A±08