Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Start the inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not using the hand-held tester.

Check operation of the VSC buzzer.
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 ACTIVE TEST mode on the hand-held tester.
Check: "ON-OFF" function of the VSC buzzer with the hand-held tester.

OK: Check and replace ABS & BA & TRAC & VSC ECU.

If NG , go to step 2.
Check voltage between terminal 1 of VSC buzzer and body ground.
Preparation: disconnect the connector from VSC buzzer.

Check:
1. Turn the ignition switch ON.
2. Measure voltage between terminal 1 of VSC buzzer and body ground.
OK: Voltage: 10-14 V.

NG: Repair or replace harness or connector from voltage Supply to VSC buzzer.

If OK , go to step 3.
Check VSC buzzer.
Preparation: disconnect the VSC buzzer connector.

Check: apply battery positive voltage to the terminals 1 and 2 of VSC buzzer connector, and check that the VSC buzzer sounds.

Fig 1: Testing VSC Buzzer
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Replace VSC buzzer.

If OK , go to step 4.
Check for open and short circuit in harness and connector between ABS & BA & TRAC & VSC ECU and VSC buzzer . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .

NG: Repair or replace harness or connector.

OK: Check and replace ABS & BA & TRAC & VSC ECU.