Question

2006 Scion Tc with code B2799. How to fix this code? I am getting this code and need to know how to correct it

Answer 1

B2799 Engine immobilizer system

This is for the anti-theft system dealing with the key, what happens is there is a error in the communication and the transponder key, The battery for the key should be check. This may be a different key or key not programmed use this method to rrest the key

 1. Insert and remove the key from the ignition twice in five seconds with the driver's door open. Close and open the driver door twice within 40 seconds. Insert and remove the key from the ignition. Close and open the driver's door within 40 seconds. Insert the key into the ignition and close the driver's door.

 2. Turn the key in the ignition to the "On" and "Off" position once to program new remotes without erasing the current code for existing remotes. Turn the key to the "On" and "Off" positions twice to erase the current remote code in preparation for programming new and existing remotes. Turn the key to the "On" and "Off" positions three times to check how many remotes are currently programmed or five times to reset all remotes currently programmed.

 3. Remove the key from the ignition. The door locks will cycle quickly one, two or five times to indicate the programming mode chosen. If the mode chosen previously was to check how many remotes are currently programmed, the door locks will cycle up to four times slowly to represent the number of remotes currently programmed.

 4. Press and release the "Lock" and "Unlock" buttons simultaneously on the driver's-side door panel within 40 seconds after the door locks cycle. Press and release either the "Lock" or "Unlock" button on the remote being programmed within three seconds. The door locks will cycle once to indicate programming was successful or twice to indicate programming failed. If programming was unsuccessful, start again at the beginning of this step. Repeat these steps to program additional remotes. You can program a total of four remotes to operate with a single vehicle.

 5. Open the driver door to exit the remote programming mode. Test each remote by locking and unlocking the door locks of the Scion

Answer 2

Here is a link to the code's page with more information

B2799 Scion Code - Engine Immobiliser System Malfunction
Read more: https://www.autocodes.com/b2799_scion.html