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 RELAY 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.
   DATA LIST
   
   

   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. 

   NG: Go to step 2 

   OK: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE  REPLACEMENT  ) 

2. INSPECT HARNESS AND CONNECTOR (GND2 OF SKID CONTROL ECU - BODY GROUND) 
   1. Disconnect the skid control ECU connector.
   2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

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

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

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) 

   OK: Go to next step. 

3. RECONFIRM DTC 

   HINT:

   This code is detected when a problem is determined in the ABS & TRACTION actuator assy.

   The ABS motor relay is in the ABS & TRACTION actuator assy.

   Therefore, motor relay circuit inspection and relay unit inspection cannot be performed. Be sure to check if the DTC code is output before replacing the ABS & TRACTION actuator assy.

   1. Clear the DTCs (see DTC CHECK/CLEAR ).
   2. Turn the ignition switch to the ON position.

   Are the same DTCs recorded? 

   NO: END 

   HINT:

   This DTC may be memorized due to a malfunction in the connector terminal.

   YES: REPLACE ABS & TRACTION ACTUATOR ASSY (SEE  REPLACEMENT  )