Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

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 brake warning and 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:
  
  Check that brake warning and VSC buzzer sounds "ON" and "OFF" with the hand-held tester.
1. OK: Check and replace skid control ECU.
2. NG: Go to next step.
Check brake warning and VSC buzzer.
PREPARATION:

Disconnect the brake warning and VSC buzzer connector.

CHECK:

Apply battery positive voltage to terminals 1 and 2 of the brake warning and VSC buzzer connector. Check that the brake warning light comes on and the VSC buzzer sounds.

Fig 1: Checking Brake Warning & VSC Buzzer
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: Replace brake warning and VSC buzzer.
2. OK: Go to next step.
Check for open and short circuit in harness and connector between skid control ECU and brake warning and VSC buzzer (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
1. NG: Repair or replace harness or connector.
2. OK: Check and replace skid control ECU.