Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Start the engine.
3. Select the Active Test mode on the intelligent tester (See DATA LIST / ACTIVE TEST  ).

   ABS/VSC: 

   NORMAL CONDITION CHART
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   ABS MOT RELAY	ABS motor relay	Relay ON / OFF	Operation of motor (clicking sound) can be heard

4. Check the operation sound of the ABS motor individually when operating it with the intelligent tester.

   OK: 

   The operation sound of the ABS motor should be heard. 

   NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION  ).

NG: Go to step 2 

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See  REMOVAL   ) 

1. Disconnect the skid control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   S1-32 (GND1) - Body ground	Below 1 Ω

   NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION  ).
   Fig 1: Identifying Skid Control ECU Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See  REMOVAL   )