PSA: How To disable key ignition warning buzzer - Page 2 - Toyota 4Runner Forum

Charlievee · 03-20-2021, 08:38 PM

Cheaper then carista, I'll give you that.

IjmRunner · 03-20-2021, 10:15 PM

Carista can't turn this off. I tried.

IjmRunner · 03-20-2021, 10:16 PM

Quote:

Originally Posted by dcguy

Any thoughts on disabling it on keyless ignition models (2020+)?

I'll look into the wiring diagrams tonight.

IjmRunner · 03-20-2021, 10:59 PM

For smart key users:

It appears without a techstream (more on that below) you won't be able to stop your buzzer from going off when your key is inside the vehicle.

Your key sends a signal to the Certification ECU (Smart Key ECU) that it is inside the car, which in turn signals the "Combination Meter Assembly"(Gauge Cluster) CPU to sound the buzzer. All communication is done via can bus signal, there is no physical wire or physical switch that can be disabled to circumvent this system, but.................

There are cables that are available online that will allow you to hook up a laptop with certain software to your vehicle to disable it. I'm not going to link you to how to do it, google is your friend, searching toyota techstream could be useful.

I still can't tell you 100% you will be able to disable this, but it's a pretty powerful solution.

-Drew

dcguy · 03-21-2021, 01:25 PM

Quote:

Originally Posted by IjmRunner

For smart key users:

It appears without a techstream (more on that below) you won't be able to stop your buzzer from going off when your key is inside the vehicle.

Your key sends a signal to the Certification ECU (Smart Key ECU) that it is inside the car, which in turn signals the "Combination Meter Assembly"(Gauge Cluster) CPU to sound the buzzer. All communication is done via can bus signal, there is no physical wire or physical switch that can be disabled to circumvent this system, but.................

There are cables that are available online that will allow you to hook up a laptop with certain software to your vehicle to disable it. I'm not going to link you to how to do it, google is your friend, searching toyota techstream could be useful.

I still can't tell you 100% you will be able to disable this, but it's a pretty powerful solution.

-Drew

Thank you

Charlievee · 03-21-2021, 03:02 PM

Quote:

Originally Posted by IjmRunner

Carista can't turn this off. I tried.

Interesting, i get a few seatbelt chimes and that's it. Maybe a year specific thing?

IjmRunner · 03-21-2021, 08:22 PM

This isn't for the seat belt ding. It's for when your key is in the ignition and the drivers door is open, it will constantly ding unless you remove the key from the ignition or shut the door.

Charlievee · 03-21-2021, 10:10 PM

Quote:

Originally Posted by IjmRunner

This isn't for the seat belt ding. It's for when your key is in the ignition and the drivers door is open, it will constantly ding unless you remove the key from the ignition or shut the door.

Again, i get 3 or 4 seat belt chime. Key on, engine running, door open. No extra bells or whistles. Only thing i ever did was turn everything off with the carista (flashing lights, door unlock/ lock and the rest of the factory carnival nonsense). Guess i got lucky.