Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK WHEEL SENSOR
1. Turn the ignition switch OFF.
2. Check the wheel sensor for damage.
Is the inspection result normal?

YES

GO TO STEP 3 .

NO

GO TO STEP 2 .

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. 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 any DTC "C1101", "C1102", "C1103" or "C1104" detected?

YES

GO TO STEP 3 .

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 5 .

NO

Repair / replace harness or connector, securely lock the connector, and GO TO STEP 4 .

PERFORM SELF-DIAGNOSIS (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. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
5. Stop the vehicle.
6. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
7. Repeat step 6 two or more times.
8. Perform self-diagnosis for "ABS".
Is any DTC "C1101", "C1102", "C1103" or "C1104" detected?

YES

GO TO STEP 5 .

NO

INSPECTION END

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 6 .

NO

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

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 8 .

NO

Repair / replace harness, connector, or terminal, and GO TO STEP 7 .

PERFORM SELF-DIAGNOSIS (2)

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. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
7. Stop the vehicle.
8. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
9. Repeat step 8 two or more times.
10. Perform self-diagnosis for "ABS".
Is any DTC "C1101", "C1102", "C1103" or "C1104" detected?

YES

GO TO STEP 8 .

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)

Is the inspection result normal?

YES

GO TO STEP 10 .

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

PERFORM SELF-DIAGNOSIS (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. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
7. Stop the vehicle.
8. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
9. Repeat step 8 two or more times.
10. Perform self-diagnosis for "ABS".
Is any DTC "C1101", "C1102", "C1103" or "C1104" detected?

YES

GO TO STEP 10 .

NO

INSPECTION END

REPLACE WHEEL SENSOR

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. 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 any DTC "C1101", "C1102", "C1103" or "C1104" detected?

YES

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

NO

INSPECTION END