Inspection Procedure

HINT:

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

1. Check operation of the BRAKE warning buzzer. 

   PREPARATION: 

   1. Connect the TOYOTA hand-held tester to the DLC3.
   2. Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON.
   3. Select the ACTIVE TEST mode on the TOYOTA hand-held tester.

   CHECK: 

   Check that BRAKE warning buzzer sounds "ON" using the TOYOTA hand-held tester.

   HINT:

   BRAKE warning buzzer sounds "OFF" automatically 2 seconds after it sounds "ON".

   OK: Check and replace ABS ECU. 

   NG: Go to next step. 

2. Check BRAKE warning buzzer. 

   See combination meter troubleshooting. See TROUBLESHOOTING .

   NG: Replace BRAKE warning buzzer. 

   OK: Go to next step. 

3. Check for open and short circuit in harness and connector between BRAKE warning buzzer and ABS ECU (See  HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS  ). 

   NG: Repair or replace harness or connector. 

   OK: Check and replace ABS ECU.