Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CONNECTOR INSPECTION 
   1. Turn ignition switch OFF.
   2. Disconnect ABS actuator and electric unit (control unit) connectors.
   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.

2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY CIRCUIT 

   Check voltage between ABS actuator and electric unit (control unit) connector E125 terminal 34 and ground.

   ABS actuator and electric unit (control unit)		Ground	Condition	Voltage (Approx.)
   Connector	Terminal
   E125	34	-	Ignition switch ON	Battery voltage
   			Ignition switch OFF	0V

   Is the inspection result normal? 

   YES: GO TO  3.

   NO: Repair or replace malfunctioning components.

3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) BATTERY POWER SUPPLY CIRCUIT 

   Check voltage between ABS actuator and electric unit (control unit) connector E125 terminals 3, 4 and ground.

   ABS actuator and electric unit (control unit)		Ground	Voltage (Approx.)
   Connector	Terminal
   E125	3	-	Battery voltage
   	4

   Is the inspection result normal? 

   YES: GO TO  4.

   NO: Repair or replace malfunctioning components.

4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Check continuity between ABS actuator and electric unit (control unit) connector E125 terminals 1, 2 and ground.

      ABS actuator and electric unit (control unit)		-	Continuity
      Connector	Terminal
      E125	1	Ground	Yes
      	2

   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.