Diagnosis Procedure

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
   • Harness connector E4
   • Harness connector M2

     Is the inspection result normal? 

     YES: GO TO 2.

     NO: Repair the terminal and connector.

1. Disconnect the following harness connectors.
   • ABS actuator and electric unit (control unit)
   • Harness connectors E4 and M2
2. Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the harness connector.
   CONTINUITY REFERENCE CHART
   
   

   ABS actuator and electric unit (control unit) harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   E33	26	E4	9	Existed
   	15		25	Existed

   Is the inspection result normal? 

   YES: GO TO 3.

   NO: Repair the main line between the ABS actuator and electric unit (control unit) and the harness connector E4.

Check the continuity between the harness connector and the data link connector.

Is the inspection result normal? 

YES (Present error): Check CAN system type decision again.

YES (Past error): Error was detected in the main line between the ABS actuator and electric unit (control unit) and the data link connector.

NO: Repair the main line between the harness connector M2 and the data link connector.