Inspection Procedure

1. Connect Techstream to the DLC3.
2. Start the engine.
3. Select the "VSC H/B Warning Buzzer" in the Actve Test and operate the skid control buzzer by Techstream.

   ABS / VSC / TRAC: 

   ABS/VSC/TRAC ACTIVE TEST REFERENCE
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   VSC H/B Warning Buzzer	Skid control buzzer	Buzzer ON/OFF	Buzzer can be heard

4. Check that skid control buzzer sounds by operating Techstream.

   OK: 

   The skid control buzzer sounds in accordance with operation of Techstream. 

NG: Go to step 2 

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

1. Disconnect the skid control buzzer connector.
Fig 1: Identifying Skid Control Buzzer
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply a battery negative voltage to terminal 1 and positive voltage to terminal 2 of the skid control buzzer connector, and check that the buzzer sounds.

   OK: 

   The skid control buzzer sound should be heard. 

NG: REPLACE SKID CONTROL BUZZER 

OK: Go to next step 

1. Disconnect the skid control buzzer connector and the skid control ECU connector.
Fig 2: Identifying Skid Control Buzzer And Skid Control ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

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

3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE SPECIFIED CONDITION
   
   

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

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY