• posted by Craig Murray

B2AB249 indicates a fault involving the intelligent power module (IPM) and insulated-gate bipolar transistor (IGBT) within the electric A/C compressor drive system. The fault affects the compressor’s high-voltage power electronics, which control the electric motor responsible for circulating refrigerant through the air-conditioning system. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

B2AB149 indicates a phase loss has been detected in the electric A/C compressor motor. The fault affects the compressor’s three-phase electric motor drive, which converts high-voltage electrical power into mechanical compressor operation for refrigerant circulation and cabin cooling. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

U025387 indicates a loss of communication between the vehicle’s control systems and the electric A/C compressor. The fault affects the electric air-conditioning and thermal-management system, which relies on communication between the compressor and vehicle control modules to regulate refrigerant circulation and cabin cooling. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

An inoperative air-conditioning compressor indicates that the electric compressor is not starting or is not being commanded to operate when cooling is requested. The fault affects the electric A/C and thermal-management system, which uses the compressor to circulate refrigerant and remove heat from the cabin. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

Insufficient air conditioner cooling indicates that the climate control system is unable to reduce cabin temperature to the expected level. The fault affects the electric air-conditioning system, including the electric compressor, refrigerant circuit, condenser, evaporator, thermal-management components, sensors, and climate control system used to regulate cabin temperature. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

B1AC800 indicates that the vehicle has failed to retrieve valid GPS data. The fault affects the navigation and vehicle positioning system, which relies on GPS signals and communication between the positioning antenna, navigation or infotainment system, and associated control modules to determine the vehicle’s location. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

U017487 indicates a loss of communication between the vehicle’s control systems and the auxiliary radar module. The fault affects the radar-based driver assistance and sensing network, which relies on vehicle communication buses to exchange object detection and system-status information with other electronic control units. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

C121200 indicates that a camera used by the vehicle’s driver assistance system has detected an obstruction or an unacceptable viewing condition. The fault affects the camera-based sensing system responsible for providing visual information to functions such as driver assistance and safety monitoring. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

• posted by Craig Murray

B1B4800 indicates an internal fault has been detected in the rear 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.

• posted by Craig Murray

B1B5100 indicates an internal fault has been detected in the rear 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.