Inspection Procedure
- PERFORM ACTIVE TEST USING HAND-HELD TESTER
- Connect the hand-held tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
- Turn the ignition switch ON.
- Perform the ACTIVE TEST by following the directions on the tester screen.
Theft warning ECU assy:
DIAGNOSTIC NOTE DESCRIPTIONItem Test Detail Diagnostic Note BUZZ RESP SOUND Turns wireless door lock buzzer ON/OFF - OK: Wireless door lock buzzer is operating (sounding) normally.
NG: Go to step 2
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
- INSPECT WIRELESS DOOR LOCK BUZZER
- Measure the resistance between terminals 1 and 2 of the buzzer.
Standard: Approximately 1 kΩ
NOTE:- The buzzer circuit is built into the theft warning ECU, not into the buzzer itself.
- When battery voltage is directly applied to the buzzer, the buzzer does not sound.
NG: REPLACE WIRELESS DOOR LOCK BUZZER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO NEXT STEP
- CHECK WIRE HARNESS (WIRELESS DOOR LOCK BUZZER - THEFT WARNING ECU ASSY)
- Disconnect the K1 buzzer connector.
- Disconnect the T5 ECU connector.
- Measure the resistance of the wire harness side connectors.
Standard:
TESTER CONNECTION SPECIFIED CONDITIONTester Connection Specified Condition K1-1 - T5-5 (BZR2) Below 1 Ω K1-2 - T5-4 (BZR) Below 1 Ω Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE