Inspection Procedure

HINT:

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

1. Check ABS motor operation. 

   PREPARATION: 

   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch ON and push the hand-held tester main switch ON.
   3. Select the item "ABS MTR RELAY" in the ACTIVE TEST and operating it with the hand-held tester.

   CHECK: 

   Check the operation sound of the ABS motor when operating it with the hand-held tester.

   OK: 

   The operation sound of the ABS motor should be heard. 

   1. OK: Replace brake actuator assembly. 
      NOTE: When replacing the brake actuator assembly, perform the zero point calibration (see PRE-CHECK ).
   2. NG: Go To Next Step 
2. Measure resistance between terminal GND2 of skid control ECU connector and body ground. 

   PREPARATION: 

   Disconnect the brake actuator connector.

   CHECK: 

   Measure the resistance between terminal GND2 of the skid control ECU harness side connector and body ground.

   OK: 

   Resistance: Below 1 Ω 

   Fig 1: Identifying GND2 Terminal Of Skid Control ECU Harness Side Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: Repair or replace harness and connector. 
   2. OK: Replace brake actuator assembly. 
   NOTE: When replacing the brake actuator assembly, perform the zero point calibration (see PRE-CHECK ).