C1115 WHEEL SENSOR
BRC-125
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 4
NO >> Adjust tire pressure or replace tire(s).
4.CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FA X - 5 , "
On-Vehicle Inspection and Service" (front) or RAX-5,
"On-Vehicle Inspection and Service" (rear).
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace as necessary. Refer to FAX-7, "
Removal and Installation" (front) or RAX-6,
"Removal and Installation" (rear).
5.CHECK WIRING HARNESS FOR SHORT CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connec-
tor and wheel sensor connector of malfunction code No.
2. Check continuity between wheel sensor harness connector ter-
minals and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Repair the circuit.
6.CHECK WIRING HARNESS FOR OPEN CIRCUIT
1. Check continuity between ABS actuator and electric unit (control unit) harness connector E125 and the
malfunctioning wheel sensor harness connector E18, E117, C10, or C11.
Is the inspection result normal?
YES >> Replace the ABS actuator and electric unit (control unit). Refer to BRC-184, "Removal and Instal-
lation".
NO >> Repair the circuit.
Component InspectionINFOID:0000000001731112
1.CHECK DATA MONITOR
On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-
SOR”, and check the vehicle speed.Continuity should not exist.
WFIA0343E
Wheel sensorABS actuator and
electric unit (control unit)Wheel sensor
Continuity
Connector Terminal Connector Terminal
Front LH
E12545
E181
Ye s 46 2
Front RH34
E1171
33 2
Rear LH37
C112
36 1
Rear RH42
C102
43 1
Wheel sensor Vehicle speed (DATA MONITOR)
BRC-126
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1115 WHEEL SENSOR
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to diagnosis procedure. Refer to BRC-41, "
Diagnosis Procedure".
Special Repair RequirementINFOID:0000000001731113
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END
FR LH SENSOR
Nearly matches the speedometer dis-
play (±10% or less) FR RH SENSOR
RR LH SENSOR
RR RH SENSOR
C1116 STOP LAMP SWITCH
BRC-127
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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C1116 STOP LAMP SWITCH
DescriptionINFOID:0000000001731114
The stop lamp switch transmits the stop lamp switch signal (ON/OFF) to the ABS actuator and electric unit
(control unit).
DTC LogicINFOID:0000000001731115
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-44, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731116
INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
1. Disconnect the ABS actuator and electric unit (control unit) connector E125 and stop lamp switch connec-
tor E38.
2. Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace as necessary.
2.STOP LAMP SWITCH INSPECTION
Check the voltage between the ABS actuator and electric unit (con-
trol unit) harness connector E125 terminal 41 and body ground.
Is the inspection result normal?
YES >> Perform self-diagnosis again. If the same results
appear, replace ABS actuator and electric unit (control
unit). Refer to BRC-184, "
Removal and Installation".
NO >> GO TO 3
3.STOP LAMP RELAY CIRCUIT INSPECTION
DTC Display item Malfunction detected condition Possible cause
C1116 STOP LAMP SW When stop lamp switch circuit is open. Harness or connector
Stop lamp switch
ABS actuator and electric unit
(control unit)
Self-diagnosis results
STOP LAMP SW
Brake pedal depressed : Battery voltage
(approx. 12V)
Brake pedal not depressed : Approx. 0V
AWFIA0019ZZ
BRC-128
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1116 STOP LAMP SWITCH
1. Disconnect the stop lamp relay harness connector E12.
2. Check the continuity between the ABS actuator and electric unit
(control unit) harness connector E125 (B) terminal 41 and stop
lamp relay harness connector E12 (A) terminal 4.
Is the inspection result normal?
YES >> Refer to BRC-86, "Work Flow".
NO >> Repair or replace malfunctioning components.
Special Repair RequirementINFOID:0000000001731117
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END Continuity should exist.
AWFIA0020ZZ
C1120, C1122, C1124, C1126 IN ABS SOL
BRC-129
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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C1120, C1122, C1124, C1126 IN ABS SOL
DescriptionINFOID:0000000001731118
The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731119
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-46, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731120
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
4. Reconnect connectors and then perform the self-diagnosis. Refer to BRC-25, "
CONSULT-III Function
(ABS)".
Is any item indicated on the self-diagnosis display?
YES >> GO TO 2
NO >> Poor connection of connector terminal. Repair or replace connector.
2.CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
DTC Display item Malfunction detected condition Possible cause
C1120 FR LH IN ABS SOLWhen the control unit detects a malfunction in the front
LH inlet solenoid circuit.
ABS actuator and electric unit
(control unit) C1122 FR RH IN ABS SOLWhen the control unit detects a malfunction in the front
RH inlet solenoid circuit.
C1124 RR LH IN ABS SOLWhen the control unit detects a malfunction in the rear LH
inlet solenoid circuit.
C1126 RR RH IN ABS SOLWhen the control unit detects a malfunction in the rear
RH inlet solenoid circuit.
Self-diagnosis results
FR LH IN ABS SOL
FR RH IN ABS SOL
RR LH IN ABS SOL
RR RH IN ABS SOL
BRC-130
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1120, C1122, C1124, C1126 IN ABS SOL
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
3. Check voltage between ABS actuator and electric unit (control
unit) harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector terminals and ground.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
Refer to BRC-184, "
Removal and Installation".
NO >> Repair or replace malfunctioning components.
Component InspectionINFOID:0000000001731121
1.CHECK ACTIVE TEST
1. Select each test menu item on ”ACTIVE TEST“.
2. On the display, touch “UP”, “KEEP”, and “DOWN”, and check that the system operates as shown in the
table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
Is the inspection result normal?
YES >> INSPECTION END
ABS actuator and electric unit (control unit)
—Voltage
Connector Terminal
E125 32 Ground Battery voltage
AWFIA0018ZZ
ABS actuator and electric unit (control unit)
— Continuity
Connector Terminal
E125 16, 47 Ground Yes
AWFIA0016ZZ
OperationABS solenoid valve ABS solenoid valve (ACT)
UP KEEP DOWN UPACTUA-
TOR UPACTUA-
TOR KEEP
FR RH SOL
FR RH ABS SOLE-
NOID (ACT)FR RH IN SOL OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
FR LH SOL
FR LH ABS SOLE-
NOID (ACT)FR LH IN SOL OFF ON ON OFF OFF OFF
FR LH OUT SOL OFF OFF ON* OFF OFF OFF
RR RH SOL
RR RH ABS SOLE-
NOID (ACT)RR RH IN SOL OFF ON ON OFF OFF OFF
RR RH OUT SOL OFF OFF ON* OFF OFF OFF
RR LH SOL
RR LH ABS SOLE-
NOID (ACT)RR LH IN SOL OFF ON ON OFF OFF OFF
RR LH OUT SOL OFF OFF ON* OFF OFF OFF
REAR SOLRR RH IN SOL OFF ON ON OFF OFF OFF
RR RH OUT SOL OFF OFF ON* OFF OFF OFF
RR LH IN SOL OFF ON ON OFF OFF OFF
RR LH OUT SOL OFF OFF ON* OFF OFF OFF
C1120, C1122, C1124, C1126 IN ABS SOL
BRC-131
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
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NO >> Go to diagnosis procedure. Refer to BRC-46, "Diagnosis Procedure".
Special Repair RequirementINFOID:0000000001731122
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END
BRC-132
< COMPONENT DIAGNOSIS >[ESP/TCS/ABS]
C1121, C1123, C1125, C1127 OUT ABS SOL
C1121, C1123, C1125, C1127 OUT ABS SOL
DescriptionINFOID:0000000001731123
The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731124
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-49, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731125
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
4. Reconnect connectors and then perform the self-diagnosis. Refer to BRC-25, "
CONSULT-III Function
(ABS)".
Is any item indicated on the self-diagnosis display?
YES >> GO TO 2
NO >> Poor connection of connector terminal. Repair or replace connector.
2.CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
DTC Display item Malfunction detected condition Possible cause
C1121 FR LH OUT ABS SOLWhen the control unit detects a malfunction in the front
LH outlet solenoid circuit.
ABS actuator and electric unit
(control unit) C1123 FR RH OUT ABS SOLWhen the control unit detects a malfunction in the front
RH outlet solenoid circuit.
C1125 RR LH OUT ABS SOLWhen the control unit detects a malfunction in the rear LH
outlet solenoid circuit.
C1127 RR RH OUT ABS SOLWhen the control unit detects a malfunction in the rear
RH outlet solenoid circuit.
Self-diagnosis results
FR LH OUT ABS SOL
FR RH OUT ABS SOL
RR LH OUT ABS SOL
RR RH OUT ABS SOL