Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Start the engine.
3. Select the "VSC / BR WARN BUZ" in the ACTIVE TEST and operate the skid control buzzer by the intelligent tester.
   SKID CONTROL BUZZER
   
   

   Item	Vehicle Condition / Test Details	Diagnostic Note
   VSC / BR WARN BUZ	Turns VSC / BRAKE warning buzzer ON / OFF	Buzzer can be heard

4. Check that skid control buzzer sounds by operating the intelligent tester.

   OK: The skid control buzzer sounds in accordance with operation of the intelligent tester. 

NG: Go to step 2 

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

1. Disconnect the skid control buzzer connector.
2. Apply a battery positive voltage to terminals 1 and 2 of the skid control buzzer connector, and check that the buzzer sounds.

   OK: The skid control buzzer sound should be heard. 

Fig 1: Inspecting Skid Control Buzzer

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SKID CONTROL BUZZER 

OK: GO TO NEXT STEP 

1. Disconnect the skid control buzzer connector and the skid control ECU connector.
2. Measure the resistance according to the value(s) in SKID CONTROL BUZZER - SKID CONTROL ECU (1 OF 2)  .

   Standard resistance 

   SKID CONTROL BUZZER - SKID CONTROL ECU (1 OF 2)
   
   

   Tester Connection	Specified Condition
   S1-30 (BZ) - V10-1 (BZ)	Below 1 Ω

3. Measure the resistance according to the value(s) in SKID CONTROL BUZZER - SKID CONTROL ECU (2 OF 2)  .

   Standard resistance 

   SKID CONTROL BUZZER - SKID CONTROL ECU (2 OF 2)
   
   

   Tester Connection	Specified Condition
   S1-30 (BZ) - Body ground	10 kΩ or higher

   Fig 2: Checking Harness And Connector (Skid Control Buzzer - Skid Control ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY