Anybody can help him with his code

Anybody can help him with his code

 

The Diagnostic Trouble Code (DTC) B27A1 is detected by the Certification ECU (Smart Key ECU Assembly) if an open circuit is detected between the Certification ECU (Smart Key ECU Assembly) and front door outside handle assembly (for driver side) terminals.


What are the symptoms, or is it just some erroneous code that was stored a long time ago and you are now just reading?

 

As for the poll you missed the option.
“Can someone help an imbecile that just got a new toy”

 

I can’t open the door with the thump press

 

Then I’d check the wiring, I *think* a dead Door handle module will give you a some form of communication error not open circuit error. The wiring would be anywhere between smart key ECU and door handle.
There is another thread with a link to Toyota’s “testing procedures” that provides a ton of info and module locations.

 

Here you go.
http://www.ttguide.net/system_description-1769.html

 

I open the panel door and was just this lol unplug wire

 

Glad you got it sorted