Brake Control System (DTC/Circuit Diagnosis)

1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector E125 and VDC OFF switch connector.
3. Check connectors and terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal?

YES

GO TO 2

NO

Repair or replace as necessary.

Check VDC OFF switch. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 3.

NO

Replace VDC OFF switch. Refer to Removal and Installation .

CONSULT.

1. Connect ABS actuator and electric unit (control unit) connector E125 and VDC OFF switch connector.
2. Turn ignition switch ON.
3. In "Data Monitor" mode select "OFF SW" and check VDC OFF switch signal.

   Condition	DATA MONITOR
   VDC OFF switch is pressed and released	On
   VDC OFF switch is pressed and released again	Off

Is the inspection result normal?

YES

Refer to Work Flow .

NO

GO TO 4.

1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector E125 and VDC OFF switch connector.
3. Check continuity between ABS actuator and electric unit (control unit) connector E125 terminal 39 and VDC OFF switch connector M117 terminal 1.

   ABS actuator and electric unit (control unit)		VDC OFF switch		Continuity
   Connector	Terminal	Connector	Terminal
   E125	39	M117	1	Yes

4. Check continuity between ABS actuator and electric unit (control unit) connector terminal E125 terminal 39 and ground.

   ABS actuator and electric unit (control unit)		--	Continuity
   Connector	Terminal
   E125	39	Ground	No

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace malfunctioning components.

Check continuity between VDC OFF switch connector M117 terminal 2 and ground.

Is the inspection result normal?

YES

Replace ABS actuator and electric unit (control unit). Refer to Removal and Installation .

NO

Repair or replace malfunctioning components.