Page 2569 of 3000
BRAKE CONTROL – REAR SPEED SENSOR (for 2WD)BC–189
BC
BRAKE
BRAKE CONTROL
REAR SPEED SENSOR (for 2WD)
COMPONENTS
C119321E11
Page 2570 of 3000

BC–190BRAKE CONTROL – REAR SPEED SENSOR (for 2WD)
BC
REMOVAL
HINT:
Remove the RH by the same procedure as the LH side.
1. REMOVE REAR WHEEL
2. SEPARATE SKID CONTROL SENSOR WIRE
(a) Disconnect the connector from the skid control
sensor.
3. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY (for
Drum Type)
(a) Place matchmarks on the rear brake drum sub-
assembly and the axle hub.
(b) Remove the rear brake drum sub-assembly.
4. REMOVE REAR DISC BRAKE CALIPER ASSEMBLY
LH (for Disc Type)
(a) Remove the 2 bolts and rear brake caliper assembly
LH.
5. REMOVE REAR DISC (for Disc Type)
(a) Place matchmarks on the rear disc and the axle
hub.
(b) Remove the rear disc.
6. REMOVE REAR AXLE HUB & BEARING ASSEMBLY
LH (See page AH-16)
7. REMOVE REAR SPEED SENSOR
(a) Mount the rear axle hub in a soft jaw vise.
NOTICE:
Replace the axle hub assembly if it is dropped
or a strong shock is given to it.
(b) Using a pin punch and hammer, drive out the 2 pins
and remove the 2 attachments from SST.
(c) Using SST and 2 bolts (Diameter: 12 mm, pitch: 1.5
mm), remove the skid control sensor from the rear
axle hub.
SST 09520-00031 (09520-00040), 09521-00020,
09950-00020
NOTICE:
• If a damage is inflicted to the sensor rotor is
damaged, replace the axle hub assembly.
• Do not scratch the contacting surface of the
axle hub and speed sensor.
G024268
F040303E03
Page 2571 of 3000

BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–33
BC
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU turns
the motor relay on and operates the ABS pump motor.
If the voltage supplied to the motor relay (+BM) is below the DTCs detection threshold due to low voltage
from the battery/alternator, the DTCs may be stored.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
After steps 1, 2 and 3 are completed, start the inspection from step 4 when using the intelligent tester, and
from step 5 when not using the intelligent tester.
(a) Remove the ABS 1 fuse from the FL block.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
DTC C0273/13 Open in ABS Motor Relay Circuit
DTC C0274/14 Short to B+ in ABS Motor Relay Circuit
DTC No. DTC Detection Condition Trouble Area
C0273/13With the IG1 terminal voltage 10 V or less during initial
check or ABS control, pump motor relay is turned ON
and relay contact is not ON for 0.2 seconds or more.• ABS 1 fuse
• ABS motor relay
• ABS motor relay circuit
• Brake actuator assembly
C0274/14The motor contact is ON for 3 seconds or more when
the motor relay is OFF.• ABS 1 fuse
• ABS motor relay
• ABS motor relay circuit
• Brake actuator assembly
1INSPECT FUSE (ABS 1 FUSE)
C119436E01
Tester Connection Specified Condition
ABS 1 (50 A) fuse Below 1
(Continuity)
Page 2572 of 3000

BC–34BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
NG
OK
(a) Install the ABS 1 fuse.
(b) Disconnect the skid control ECU connector.
(c) Measure the voltage according to the value(s) in the
table below.
Standard voltage
NG
OK
(a) Measure the resistance according to the value(s) in the
table below.
Standard resistance
NG
OK
(a) Reconnect the skid control ECU connector.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the ignition switch to the ON position and turn the
intelligent tester main switch on.
(d) Start the engine.
(e) Select the ACTIVE TEST mode on the intelligent tester.
ABS:REPLACE FUSE (ABS 1 FUSE)
2INSPECT SKID CONTROL ECU (+BM TERMINAL VOLTAGE)
C113872E02
Tester Connection Condition Specified Condition
S3-24 (+BM) - Body
groundAlways 10 to 14 V
REPAIR OR REPLACE HARNESS OR
CONNECTOR (+BM CIRCUIT)
3INSPECT SKID CONTROL ECU (GND TERMINAL CONTINUITY)
C058919E22
Tester Connection Specified Condition
S3-1 (GND1) - Body ground Below 1
S3-23 (GND2) - Body ground Below 1
REPAIR OR REPLACE HARNESS OR
CONNECTOR (GND CIRCUIT)
4PERFORM ACTIVE TEST BY INTELLIGENT TESTER (ABS MOTOR RELAY)
Item (Display) Vehicle Condition / Test Details Diagnostic Note
ABS MOT RELAY Turns ABS motor relay ON / OFF Operating sound of motor is heard
Page 2573 of 3000

BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–35
BC
(f) Check operating sound of the ABS motor when
operating it with the intelligent tester.
OK:
The operating sound of the ABS motor is heard.
NG
OK
(a) Clear the DTCs (See page BC-10).
(b) Start the engine.
(c) Drive the vehicle at the speed of 6 km/h (4 mph) or more.
(d) Check that the same DTCs are recorded (See page BC-
10).
HINT:
• Reinstall the sensors, connectors, etc. and restore the
vehicle to its prior condition before rechecking for
DTCs.
• If a speed signal of 6 km/h (4 mph) or more is input to
the skid control ECU, with the ignition switch on and
the stop light switch off, the ECU performs self-
diagnosis of the motor and solenoid circuits.
Result
HINT:
• If any DTCs are output while jiggling a connector or
wire harness of the brake actuator (skid control ECU),
inspect and repair the connector or wire harness.
• If the normal system code is output, slightly jiggle the
connectors, wire harnesses, and fuses of the brake
actuator assembly. Make sure that no DTCs are
output.
• These DTCs may be stored due to a malfunction in
the connector terminal connection, etc.
B
AREPLACE BRAKE ACTUATOR ASSEMBLY
5RECONFIRM DTC
Condition Proceed to
DTCs (C0273/13 and C0274/14) are output A
DTCs (C0273/13 and C0274/14) are not output B
END
REPLACE BRAKE ACTUATOR ASSEMBLY
Page 2574 of 3000
BRAKE CONTROL – REAR SPEED SENSOR (for 4WD)BC–193
BC
BRAKE
BRAKE CONTROL
REAR SPEED SENSOR (for 4WD)
COMPONENTS
C119321E12
Page 2575 of 3000
BC–194BRAKE CONTROL – REAR SPEED SENSOR (for 4WD)
BC
REMOVAL
HINT:
Remove the RH side by the same procedure as the LH side.
1. REMOVE REAR WHEEL
2. REMOVE QUARTER TRIM PANEL ASSEMBLY
FRONT LH
HINT:
Remove the LH side by the same procedure as the RH
side (See page IR-9).
3. REMOVE REAR SPEED SENSOR
(a) Disconnect the speed sensor connector, and pull
out the sensor wire harness with grommet.
(b) Remove the clamp bolt holding the sensor harness
from the body.
(c) Remove the bolt and speed sensor rear LH.
NOTICE:
Keep the tip of the speed sensor rear LH clean.
F040305
G024305
G023898
Page 2576 of 3000

BC–36BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
DESCRIPTION
This relay supplies power to each ABS solenoid.
Immediately after the ignition switch is turned to the ON position, the relay turns on if the solenoid is
determined to be normal as a result of self-diagnosis during initial check.
The relay turns off if an open/short is detected.
If the voltage supplied to the motor relay (+BS) is below the DTC detection threshold due to low voltage
from the battery/alternator, the DTCs may be stored.
WIRING DIAGRAM
Refer to DTCs C0226/21, C0236/22, C0246/23 and C0256/24 (See page BC-29).
INSPECTION PROCEDURE
(a) Remove the ABS 2 fuse from the FL block.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
NG
OK
DTC C0278/11 Open in ABS Solenoid Relay Circuit
DTC C0279/12 Short to B+ in ABS Solenoid Relay Circuit
DTC No. DTC Detection Condition Trouble Area
C0278/11The solenoid relay contact is OFF for 0.2 seconds or
more when the solenoid relay is turned ON.• ABS 2 fuse
• ABS solenoid relay
• ABS solenoid relay circuit
• Brake actuator assembly
C0279/12The solenoid relay contact is ON for 0.2 seconds or
more when the solenoid relay is OFF.• ABS 2 fuse
• ABS solenoid relay
• ABS solenoid relay circuit
• Brake actuator assembly
1INSPECT FUSE (ABS 2 FUSE)
Tester Connection Specified Condition
ABS 2 (30 A) fuse Below 1
(Continuity)
REPLACE FUSE (ABS 2 FUSE)