Buzzer Circuit

FUNCTION DESCRIPTION

When there is no answer back in spite that the wireless door lock and unlock function is operating, there might be abnormality in the outputs of the hazard light signal from the theft warning ECU and also in the outputs of the wireless buzzer.

NOTE:
- Wireless door lock system has a function with a large-scale body multiplex communications. First of all, inspect the communication function depending on the HOW TO PROCEED WITH TROUBLESHOOTING, and check there is no abnormality in the communication system. Then finally proceed with the troubleshooting.
- Troubleshooting should be started after the confirmation that the hazard answer back function is customized and the buzzer controller switch is not in the OFF position.

Wiring Diagram:

Step 1 - 5:

Step 6:

Step 7:

INSPECTION PROCEDURE