Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

Check the ABS actuator and electric unit (control unit) power supply and ground circuit. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES

GO TO STEP 2 .

NO

Repair / replace harness, connector, fuse, or fusible link.

CHECK TIRE
1. Turn the ignition switch OFF.
2. Check the tire air pressure, wear and size. Refer to TIRE AIR PRESSURE .
Is the inspection result normal?

YES

GO TO STEP 5 .

NO

Adjust air pressure or replace tire and GO TO STEP 3 .

CHECK DATA MONITOR (1)

With CONSULT
1. Erase self-diagnosis result for "ABS".
2. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
3. Start the engine.
4. Select "ABS" and "DATA MONITOR", check "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR" and "RR RH SENSOR".
  NOTE:
  Set the "DATA MONITOR" recording speed to "10 msec".
5. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 50 km/h (31 MPH) between the wheel speed detected by the error detecting wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the difference within 5%, respectively?

YES

GO TO STEP 4 .

NO

GO TO STEP 5 .

PERFORM SELF-DIAGNOSIS (1)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
2. Stop the vehicle.
3. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
4. Repeat step 3 two or more times.
5. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

GO TO STEP 5 .

NO

INSPECTION END

CHECK WHEEL SENSOR
1. Turn the ignition switch OFF.
2. Check the wheel sensor for damage.
3. Remove dust and foreign matter from the sensor rotor with a vacuum dust collector through the wheel sensor mounting hole.
  CAUTION:
  Install wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque.
  - Front: Refer to EXPLODED VIEW .
  - Rear: Refer to EXPLODED VIEW .
Is the inspection result normal?

YES

GO TO STEP 8 .

NO

GO TO STEP 6 .

REPLACE WHEEL SENSOR (1)

With CONSULT
1. Replace the wheel sensor.
  - Front: Refer to REMOVAL AND INSTALLATION .
  - Rear: Refer to REMOVAL AND INSTALLATION .
2. Erase self-diagnosis result for "ABS".
3. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
4. Start the engine.
5. Select "ABS" and "DATA MONITOR", check "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR" and "RR RH SENSOR".
  NOTE:
  Set the "DATA MONITOR" recording speed to "10 msec".
6. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 50 km/h (31 MPH) between the wheel speed detected by the error detecting wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the difference within 5%, respectively?

YES

GO TO STEP 7 .

NO

GO TO STEP 19 .

PERFORM SELF-DIAGNOSIS (2)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
2. Stop the vehicle.
3. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
4. Repeat step 3 two or more times.
5. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

GO TO STEP 19 .

NO

INSPECTION END

CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
3. Check the wheel sensor harness connector for disconnection or looseness.
Is the inspection result normal?

YES

GO TO STEP 11 .

NO

Repair / replace harness or connector, securely lock the connector, and GO TO STEP 9 .

CHECK DATA MONITOR (2)

With CONSULT
1. Erase self-diagnosis result for "ABS".
2. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
3. Start the engine.
4. Select "ABS" and "DATA MONITOR", check "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR" and "RR RH SENSOR".
  NOTE:
  Set the "DATA MONITOR" recording speed to "10 msec".
5. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 50 km/h (31 MPH) between the wheel speed detected by the error detecting wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the difference within 5%, respectively?

YES

GO TO STEP 10 .

NO

GO TO STEP 11 .

PERFORM SELF-DIAGNOSIS (3)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
2. Stop the vehicle.
3. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
4. Repeat step 3 two or more times.
5. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

GO TO STEP 11 .

NO

INSPECTION END

CHECK TERMINAL
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector and then check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
3. Disconnect wheel sensor harness connector and check each wheel sensor pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?

YES

GO TO STEP 14 .

NO

Repair / replace harness, connector, or terminal, and GO TO STEP 12 .

CHECK DATA MONITOR (3)

With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
3. Erase self-diagnosis result for "ABS".
4. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
5. Start the engine.
6. Select "ABS" and "DATA MONITOR", check "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR" and "RR RH SENSOR".
  NOTE:
  Set the "DATA MONITOR" recording speed to "10 msec".
7. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 50 km/h (31 MPH) between the wheel speed detected by the error detecting wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the difference within 5%, respectively?

YES

GO TO STEP 13 .

NO

GO TO STEP 14 .

PERFORM SELF-DIAGNOSIS (4)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
2. Stop the vehicle.
3. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
4. Repeat step 3 two or more times.
5. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

GO TO STEP 14 .

NO

INSPECTION END

CHECK WHEEL SENSOR HARNESS

Turn the ignition switch OFF.
Disconnect ABS actuator and electric unit (control unit) harness connector.
Disconnect wheel sensor harness connector.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and wheel sensor harness connector. (Check the continuity when steering wheel is steered to RH and LH, or center harness in wheel housing is moved.)

Measurement connector and terminal for power supply circuit

ABS actuator and electric unit (control unit)		Wheel sensor			Continuity
Connector	Terminal	Connector		Terminal	Continuity
E35	20	E48	(Front LH wheel)	2	Existed
	10	E54	(Front RH wheel)
	8	C6	(Rear LH wheel)
	18	C5	(Rear RH wheel)

Measurement connector and terminal for signal circuit

ABS actuator and electric unit (control unit)		Wheel sensor			Continuity
Connector	Terminal	Connector		Terminal	Continuity
E35	19	E48	(Front LH wheel)	1	Existed
	9	E54	(Front RH wheel)
	7	C6	(Rear LH wheel)
	17	C5	(Rear RH wheel)

Check the continuity between ABS actuator and electric unit (control unit) harness connector and the ground.

ABS actuator and electric unit (control unit)		-	Continuity
Connector	Terminal	-	Continuity
E35	20, 19	Ground	Not existed
	10, 9
	8, 7
	18, 17

Is the inspection result normal?

YES

GO TO STEP 15 .

Repair / replace harness or connector, and GO TO STEP 15 .

CHECK DATA MONITOR (4)

With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
3. Erase self-diagnosis result for "ABS".
4. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
5. Start the engine.
6. Select "ABS" and "DATA MONITOR", check "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR" and "RR RH SENSOR".
  NOTE:
  Set the "DATA MONITOR" recording speed to "10 msec".
7. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 50 km/h (31 MPH) between the wheel speed detected by the error detecting wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the difference within 5%, respectively?

YES

GO TO STEP 16 .

NO

GO TO STEP 17 .

PERFORM SELF-DIAGNOSIS (5)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
2. Stop the vehicle.
3. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
4. Repeat step 3 two or more times.
5. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

GO TO STEP 17 .

NO

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT
1. Replace the wheel sensor.
  - Front: Refer to REMOVAL AND INSTALLATION .
  - Rear: Refer to REMOVAL AND INSTALLATION .
2. Erase self-diagnosis result for "ABS".
3. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
4. Start the engine.
5. Select "ABS" and "DATA MONITOR", check "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR" and "RR RH SENSOR".
  NOTE:
  Set the "DATA MONITOR" recording speed to "10 msec".
6. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 50 km/h (31 MPH) between the wheel speed detected by the error detecting wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the difference within 5%, respectively?

YES

GO TO STEP 18 .

NO

GO TO STEP 19 .

PERFORM SELF-DIAGNOSIS (6)

With CONSULT
1. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
2. Stop the vehicle.
3. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
4. Repeat step 3 two or more times.
5. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

GO TO STEP 19 .

NO

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT
1. Replace the sensor rotor.
  - Front: Refer to REMOVAL AND INSTALLATION .
  - Rear: Refer to REMOVAL AND INSTALLATION .
2. Erase self-diagnosis result for "ABS".
3. Turn the ignition switch OFF → ON → OFF.
  CAUTION:
  Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
4. Start the engine.
5. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
6. Stop the vehicle.
7. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
8. Repeat step 7 two or more times.
9. Perform self-diagnosis for "ABS".
Is DTC "C1115" detected?

YES

Replace the ABS actuator and electric unit (control unit). Refer to REMOVAL AND INSTALLATION .

NO

INSPECTION END