B1B5400 indicates an internal failure has been detected in the front right parking sensor. The fault affects the parking assistance system, which uses ultrasonic sensors to detect nearby obstacles and provide distance information to the parking control system. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B1B5700 indicates an internal failure has been detected in the front left parking sensor. The fault affects the parking assistance system, which uses ultrasonic sensors to detect nearby obstacles and provide distance information to the parking control system. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B227E13 indicates an open circuit has been detected in the rear interior detection antenna circuit. The fault affects the smart key and keyless entry system, where interior antennas detect the presence and location of an authorised key within the cabin for key recognition and access-control functions. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B227D13 indicates an open circuit has been detected in the middle interior detection antenna circuit. The fault affects the smart key and keyless entry system, where interior antennas detect the presence and location of an authorised key within the cabin for key recognition and access-control functions. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B22A813 indicates an open circuit has been detected in the exterior trunk detection antenna circuit. The fault affects the smart key and keyless entry system, where the exterior trunk antenna detects an authorised key near the rear of the vehicle to support keyless access and related tailgate functions. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B227C13 indicates an open circuit has been detected in the front interior detection antenna circuit. The fault affects the smart key and keyless entry system, where interior antennas detect the presence and location of an authorised key inside the vehicle for functions such as key recognition and vehicle access control. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B22A613 indicates an open circuit has been detected in the right front exterior detection antenna circuit. The fault affects the smart key and keyless entry system, where exterior antennas detect the presence of an authorised key near the vehicle and provide location information to the relevant control system. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
A door handle microswitch failure indicates that the microswitch is not correctly detecting a door-handle touch or operating command. The fault affects the keyless entry and door control system, which uses handle switch inputs to request vehicle locking or unlocking and communicate the request to the relevant body control functions. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
A smart key remote function failure indicates that the vehicle is not correctly responding to commands from the smart key transmitter. The fault affects the keyless entry and remote-control system, including the smart key, receiver or antenna circuits, body control functions, and vehicle power supply used to process locking, unlocking, and related remote commands. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
B169416 indicates a fault detected by the supplemental restraint system (SRS) electronic control unit (ECU). The fault affects the SRS control system responsible for monitoring restraint circuits, processing crash-sensor information, and managing airbag and seat-belt pretensioner functions. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.
