Diagnostic Test

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

YES

GO TO STEP 3 .

NO

Repair / replace harness or connector, and GO TO STEP 2 .

PERFORM SELF-DIAGNOSIS (1)

With CONSULT
1. Turn the ignition switch OFF → ON.
  CAUTION:
  - Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
  - Start the engine.
2. Repeat step 1 two or more times.
3. Perform self-diagnosis for "ABS".
Is DTC "C1198" detected?

YES

GO TO STEP 3 .

NO

INSPECTION END

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

YES

GO TO STEP 4 .

NO

Repair / replace harness, connector, or terminal.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT
1. Erase self-diagnosis 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. 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 "C1198" detected?

YES

GO TO STEP 5 .

NO

INSPECTION END

CHECK VACUUM SENSOR CIRCUIT

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

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

Vacuum sensor		ABS actuator and electric unit (control unit)		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E62	1	E35	13	Existed
	2		32
	3		28

Check the continuity between vacuum sensor harness connector and ground.

Vacuum sensor		-	Continuity
Connector	Terminal	-	Continuity
E62	1	Ground	Not existed
	2
	3

Is the inspection result normal?

YES

GO TO STEP 6 .

NO

Repair / replace harness or connector.

REPLACE VACUUM SENSOR

With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Replace the vacuum sensor.
  CAUTION:
  Always replace brake booster because vacuum sensor cannot be disassembled. Refer to REMOVAL AND INSTALLATION .
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 engine.
  CAUTION:
  Stop the vehicle.
6. Perform self-diagnosis for "ABS".
Is DTC "C1198" detected?

YES

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

NO

INSPECTION END