Inspection Procedure

HINT: Start the inspection from step  1 when using the hand-held tester, and start from step  2 when not using the hand-held tester.

1. PERFORM ACTIVE TEST BY HAND-HELD TESTER (ABS MOTOR OPERATION) 
   1. Connect the hand-held tester to the DLC3.
   2. Start the engine.
   3. Select the ACTIVE TEST mode on the hand-held tester.
   4. Check the operation sound of the ABS motor individually when operating it with the hand-held tester.
   ITEM VEHICLE CONDITION / TEST DETAILS
   
   

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

   OK : The operation sound of the ABS motor is heard. 

   1. NG : Go to step   2 
   2. OK : REPLACE BRAKE ACTUATOR ASSY (See  REPLACEMENT  ) 
   NOTE: When replacing the brake actuator assy, perform the zero point calibration (see CALIBRATION  ).
2. INSPECT WIRE HARNESS (GND2 OF SKID CONTROL ECU - BODY GROUND) 
   1. Disconnect the skid control ECU connector.
   2. Measure the resistance according to the table below.

   Standard: 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   GND2 (S1-1) - Body ground	Below 1 Ω

   Fig 1: Inspecting Wire Harness (GND2 Of Skid Control ECU - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 
   2. OK : REPLACE BRAKE ACTUATOR ASSY (See  REPLACEMENT  ) 
   NOTE: When replacing the brake actuator assy, perform zero point calibration (see CALIBRATION  ).