ENTRY AND START SYSTEM (for Entry Function) Entry Interior Alarm does not Sound

DESCRIPTION

The entry and start system uses the combination meter buzzer to perform various vehicle interior warnings. When the conditions for each warning are met, the certification ECU sends a buzzer signal to the combination meter assembly, and the combination meter buzzer sounds.

INSPECTION PROCEDURE

Note

The entry and start system (for entry function) uses a multiplex communication system (LIN communication system) and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting Click here. Troubleshoot the entry and start system (for entry function) after confirming that the communication system is functioning properly.

PROCEDURE


  1. CHECK COMBINATION METER ASSEMBLY (OPERATION)


    1. Turn the engine switch on (IG). Place luggage on the passenger seat to cause the passenger seat belt warning light to blink.

    2. When driving the vehicle at 15 km/h (9.3 mph) or more, check that the seat belt warning buzzer sounds to inform that the passenger seat belt is not fastened.

      Tech Tips

      The entry and start system sounds the buzzer built into the combination meter for indoor warnings. This buzzer is also used for the seat belt warning system. Therefore, check the operation of the combination meter buzzer by checking if the buzzer sounds to inform that the seat belt is not fastened.

      OK
      Combination meter buzzer sounds.

    NG

    GO TO METER / GAUGE SYSTEM (PROCEED TO PROBLEM SYMPTOMS TABLE) Click here

    OK

    REPLACE CERTIFICATION ECU