Beeping sound coming from inside the car when on ignition switch on or car idling?

DAVID DAVO ESSIEN

MEMBER
2006 TOYOTA 4RUNNER
4.0L
V6
4WD
AUTOMATIC
112,249 MILES

Please help! How can I stop this constant beep sound manually without an advanced scanner?

What another engineer did was replace the master cylinder and servo because of no brake when the pedal is depressed with a new but converted type. The brakes are okay now according to the client.
However, the sound is still emanating. They were unable to stop the beeping sound.

I don't know either how to fix this noise/beep for the client. Please guide me on how to rectify and fix the problem.

Video (Click to make bigger)

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,913 POSTS

Hi David,

I would do a system reboot, please follow this guide:

https://www.2carpros.com/articles/step-by-step-guide-performing-a-hard-system-reboot-for-your-vehicles-electronics-systems

If this doesn't work, we will need to scan the car for codes. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Please go over these guides and get back to us.