Inspection Procedure

HINT:

Start the inspection from step 1 in case of using the intelligent tester and start from step 2 in case of not using the intelligent tester.

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (ABS MOTOR RELAY OPERATION) 
   1. Connect the intelligent tester to the DLC3.
   2. Start the engine.
   3. Select the ACTIVE TEST mode on the intelligent tester.
   4. Check the operation sound of the ABS motor individually when operating it with the intelligent tester.
      ACTIVE TEST REFERENCE CHART
      
      

      Item	Vehicle Condition / Test Details	Diagnostic Note
      ABS MOT RELAY	ABS motor relay / ON or OFF	Operation of motor (clicking sound) can be heard

      OK: 

      The operation sound of the ABS motor should be heard. 

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

   NG: Go to step 2 

   OK: REPLACE ABS AND TRACTION ACTUATOR 

2. INSPECT HARNESS AND CONNECTOR (GND1 OF SKID CONTROL ECU AND BODY) 
   1. Disconnect the skid control ECU connector.
   2. Measure the resistance according to the value(s) in the table below.

   Resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

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

   Fig 1: Identifying GND1 Of Skid Control ECU Connector Terminals

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
   NOTE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration (See CALIBRATION  ).

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: REPLACE ABS AND TRACTION ACTUATOR