BEV model family
BYD ATTO 3 error codes and diagnostics
Diagnostic coverage for model years 2022–2026. Verified entries below are linked to this model family by source-backed applicability evidence; model membership alone is never used to invent a code relationship.
PowertrainBEV
Model years2022–2026
Verified diagnostics240
Research leads0
Verified Verified BYD ATTO 3 diagnostic codes
Each result opens a manufacturer-specific report with the code meaning, affected vehicles, source evidence and the full diagnostic knowledge page where available.
B16001BDriver frontal airbag not connected · 2022–2026View diagnostic report →B160111Driver frontal airbag shorted to ground · 2022–2026View diagnostic report →B160212Driver frontal airbag shorted to power · 2022–2026View diagnostic report →B160A1ADriver frontal airbag resistance equals 0 · 2022–2026View diagnostic report →B16101BFront passenger frontal airbag not connected · 2022–2026View diagnostic report →B161111Front passenger frontal airbag shorted to ground · 2022–2026View diagnostic report →B161212Front passenger frontal airbag shorted to power · 2022–2026View diagnostic report →B161A1AFront passenger frontal airbag resistance equals 0 · 2022–2026View diagnostic report →B169416SRS ECU fault · 2022–2026View diagnostic report →B169517SRS ECU fault · 2022–2026View diagnostic report →B169D00SRS ECU fault · 2022–2026View diagnostic report →B17A300SRS CAN signal abnormal · 2022–2026View diagnostic report →B17A400SRS hardwire signal abnormal · 2022–2026View diagnostic report →B1BE801Front wiper HIGH switch hardwire detection fault · 2022–2026View diagnostic report →B1BF400Front wiper reset signal fault · 2022–2026View diagnostic report →B1E0007Volume-up switch stuck · 2022–2026View diagnostic report →B1E0507Voice switch stuck · 2022–2026View diagnostic report →B1E0707Volume-down switch stuck · 2022–2026View diagnostic report →B1E1007Steering wheel switch EEPROM fault · 2022–2026View diagnostic report →B1E1907Mute switch stuck · 2022–2026View diagnostic report →B1E2000Steering-wheel built-in vibration motor fault · 2022–2026View diagnostic report →B222400Sunroof Hall sensor signal abnormal · 2022–2026View diagnostic report →B225300Sunroof initialization lost · 2022–2026View diagnostic report →B225407Sunroof switch stuck · 2022–2026View diagnostic report →B225511Sunroof motor short to ground · 2022–2026View diagnostic report →B225513Sunroof motor open circuit · 2022–2026View diagnostic report →B227C13Interior front detection antenna open circuit · 2022–2026View diagnostic report →B227D13Interior middle detection antenna open circuit · 2022–2026View diagnostic report →B229D16High-frequency receiver module undersupply · 2022–2026View diagnostic report →B229D17High-frequency receiver module oversupply · 2022–2026View diagnostic report →B22A613Exterior right-front detection antenna open circuit · 2022–2026View diagnostic report →B22A813Exterior trunk detection antenna open circuit · 2022–2026View diagnostic report →B2FD016Wireless charging module low supply-voltage alarm · 2022–2026View diagnostic report →B2FD017Wireless charging module high supply-voltage alarm · 2022–2026View diagnostic report →C003100Left front wheel speed sensor signal fault · 2022–2026View diagnostic report →C003200Left front wheel speed sensor supply voltage low · 2022–2026View diagnostic report →C004900Brake fluid level below normal · 2022–2026View diagnostic report →C050000Left front wheel speed sensor open circuit · 2022–2026View diagnostic report →C050200Left front wheel speed sensor signal short to ground · 2022–2026View diagnostic report →C050300Left front wheel speed sensor signal short to supply · 2022–2026View diagnostic report →C050400Left front wheel speed sensor air gap abnormal · 2022–2026View diagnostic report →C050576Left front wheel speed sensor installed in wrong direction · 2022–2026View diagnostic report →C1066FCSteering angle sensor calibration error · 2022–2026View diagnostic report →C110009EPB control module main chip fault · 2022–2026View diagnostic report →C117009EPB switch fault · 2022–2026View diagnostic report →C11A006EPB actuator overloaded · 2022–2026View diagnostic report →C11B013Left EPB motor or line fault · 2022–2026View diagnostic report →C11B113Right EPB motor or line fault · 2022–2026View diagnostic report →C121200Camera obstructed · 2022–2026View diagnostic report →C1B9000EPS power loss · 2022–2026View diagnostic report →C1B9D21EPS power voltage too low · 2022–2026View diagnostic report →C1B9D22EPS power voltage too high · 2022–2026View diagnostic report →P056200System voltage too low · 2022–2026View diagnostic report →P056300System voltage too high · 2022–2026View diagnostic report →P151100AC high-voltage interlock fault · 2022–2026View diagnostic report →P157016AC-side voltage low · 2022–2026View diagnostic report →P157017AC-side voltage high · 2022–2026View diagnostic report →P157216DC-side voltage low · 2022–2026View diagnostic report →P157217DC-side voltage high · 2022–2026View diagnostic report →P157219DC-side overcurrent · 2022–2026View diagnostic report →P157400Power equipment fault · 2022–2026View diagnostic report →P157897CC signal abnormal · 2022–2026View diagnostic report →P15794BTemperature sampling 1 high · 2022–2026View diagnostic report →P157A36Charging grid frequency low · 2022–2026View diagnostic report →P157A37Charging grid frequency high · 2022–2026View diagnostic report →P157B00AC-side overcurrent · 2022–2026View diagnostic report →P157C00Hardware protection · 2022–2026View diagnostic report →P157F11AC output short-circuited · 2022–2026View diagnostic report →P15834BTemperature sampling 2 high · 2022–2026View diagnostic report →P158798Charging-port phase temperature seriously high · 2022–2026View diagnostic report →P158900Charging-port phase temperature sampling abnormal · 2022–2026View diagnostic report →P158A00Charging-port electric lock abnormal · 2022–2026View diagnostic report →P15FD00Cooling water temperature high · 2022–2026View diagnostic report →P15FF00Internal temperature sensor fault · 2022–2026View diagnostic report →P1A0000Serious electric leakage · 2022–2026View diagnostic report →P1A0100General electric leakage · 2022–2026View diagnostic report →P1A0200BIC1 working abnormal · 2022–2026View diagnostic report →P1A0300BIC2 working abnormal · 2022–2026View diagnostic report →P1A0400BIC3 working abnormal · 2022–2026View diagnostic report →P1A0500BIC4 working abnormal · 2022–2026View diagnostic report →P1A0600BIC5 working abnormal · 2022–2026View diagnostic report →P1A0700BIC6 working abnormal · 2022–2026View diagnostic report →P1A0800BIC7 working abnormal · 2022–2026View diagnostic report →P1A0900BIC8 working abnormal · 2022–2026View diagnostic report →P1A0C00BIC1 voltage sampling abnormal · 2022–2026View diagnostic report →P1A0D00BIC2 voltage sampling abnormal · 2022–2026View diagnostic report →P1A0E00BIC3 voltage sampling abnormal · 2022–2026View diagnostic report →P1A0F00BIC4 voltage sampling abnormal · 2022–2026View diagnostic report →P1A1000BIC5 voltage sampling abnormal · 2022–2026View diagnostic report →P1A1100BIC6 voltage sampling abnormal · 2022–2026View diagnostic report →P1A1200BIC7 voltage sampling abnormal · 2022–2026View diagnostic report →P1A1300BIC8 voltage sampling abnormal · 2022–2026View diagnostic report →P1A2000BIC1 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2100BIC2 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2200BIC3 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2300BIC4 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2400BIC5 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2500BIC6 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2600BIC7 temperature sampling abnormal · 2022–2026View diagnostic report →P1A2700BIC8 temperature sampling abnormal · 2022–2026View diagnostic report →P1A3522Power battery cell voltage seriously high · 2022–2026View diagnostic report →P1A3622Power battery cell voltage generally high · 2022–2026View diagnostic report →P1A3721Power battery cell voltage seriously low · 2022–2026View diagnostic report →P1A3922Power battery cell temperature seriously high · 2022–2026View diagnostic report →P1A3B21Power battery cell temperature seriously low · 2022–2026View diagnostic report →P1A3D00Negative contactor echo check fault · 2022–2026View diagnostic report →P1A3E00Main contactor echo check fault · 2022–2026View diagnostic report →P1A3F00Pre-charge contactor echo check fault · 2022–2026View diagnostic report →P1A4100Main contactor sintered · 2022–2026View diagnostic report →P1A4200Negative contactor sintered · 2022–2026View diagnostic report →P1A560012V power input of battery management system too low · 2022–2026View diagnostic report →P1A6000High-voltage interlock 1 fault · 2022–2026View diagnostic report →P1AC400Serious battery imbalance · 2022–2026View diagnostic report →P1AC900DC charging inductive signal disconnected · 2022–2026View diagnostic report →P1ACB07DC charging positive contactor sintered · 2022–2026View diagnostic report →P1ACC07DC charging negative contactor sintered · 2022–2026View diagnostic report →P1ADC00Front electric high-voltage interlock fault · 2022–2026View diagnostic report →P1AE400High-voltage process ended due to abnormal low-voltage supply · 2022–2026View diagnostic report →P1AE800DC charging positive contactor echo check fault · 2022–2026View diagnostic report →P1AE900DC charging negative contactor echo check fault · 2022–2026View diagnostic report →P1AF200DC charger voltage output abnormal · 2022–2026View diagnostic report →P1AF300DC charging cabinet stopped charging actively · 2022–2026View diagnostic report →P1AF400Insufficient capacity of DC charging cabinet · 2022–2026View diagnostic report →P1AF800Battery data not updated · 2022–2026View diagnostic report →P1AFB00Air-conditioning high-voltage interlock fault · 2022–2026View diagnostic report →P1AFC00On-board charger high-voltage interlock fault · 2022–2026View diagnostic report →P1AFD00DC-DC high-voltage interlock fault · 2022–2026View diagnostic report →P1BAC00Front motor controller IGBT core general overtemperature · 2022–2026View diagnostic report →P1BAC19Front motor controller IGBT core serious overtemperature · 2022–2026View diagnostic report →P1BB000Front drive motor overcurrent · 2022–2026View diagnostic report →P1BB100Front motor controller IPM fault · 2022–2026View diagnostic report →P1BB200Front drive motor general overtemperature warning · 2022–2026View diagnostic report →P1BB298Front drive motor serious overtemperature warning · 2022–2026View diagnostic report →P1BB300Front motor controller IGBT-NTC general overtemperature · 2022–2026View diagnostic report →P1BB319Front motor controller IGBT-NTC serious overtemperature · 2022–2026View diagnostic report →P1BB500Front motor controller high-voltage undervoltage · 2022–2026View diagnostic report →P1BB600Front motor controller high-voltage overvoltage · 2022–2026View diagnostic report →P1BB700Front motor controller voltage sampling fault · 2022–2026View diagnostic report →P1BB800Front motor controller collision signal fault · 2022–2026View diagnostic report →P1BB900Front motor controller cover-open protection · 2022–2026View diagnostic report →P1BBA00Front motor controller EEPROM error · 2022–2026View diagnostic report →P1BBC00Front motor controller DSP reset fault · 2022–2026View diagnostic report →P1BBD00Front motor controller active discharge fault · 2022–2026View diagnostic report →P1BBF00Front drive motor resolver/rotary transformer signal lost · 2022–2026View diagnostic report →P1BC000Front drive motor resolver/rotary transformer angle abnormal · 2022–2026View diagnostic report →P1BC100Front drive motor resolver/rotary transformer signal amplitude low · 2022–2026View diagnostic report →P1BC200Front drive motor phase A lost · 2022–2026View diagnostic report →P1BC300Front drive motor phase B lost · 2022–2026View diagnostic report →P1BC400Front drive motor phase C lost · 2022–2026View diagnostic report →P1BC500Front motor controller Hall current sensor B fault · 2022–2026View diagnostic report →P1BC600Front motor controller Hall current sensor C fault · 2022–2026View diagnostic report →P1BC700Front motor controller IPM radiator overtemperature · 2022–2026View diagnostic report →P1BC800Front motor controller IGBT three-phase temperature check fault · 2022–2026View diagnostic report →P1BC900Front motor controller Hall current sensor A fault · 2022–2026View diagnostic report →P1BCF00Front drive motor temperature sensor fault - torque limited · 2022–2026View diagnostic report →P1BF100Front motor controller IPM temperature sampling abnormal · 2022–2026View diagnostic report →P1BF200Front drive motor winding temperature sampling abnormal · 2022–2026View diagnostic report →P1D6D00DSP reset fault of vehicle control unit · 2022–2026View diagnostic report →P1D7902Collision alarm · 2022–2026View diagnostic report →P1D7E00Coolant pump stalled or shut down due to overcurrent · 2022–2026View diagnostic report →P1D8300Vehicle power limited · 2022–2026View diagnostic report →P1D8D00Cooling fan motor stalled/short-circuited · 2022–2026View diagnostic report →P1D8E00Cooling fan overtemperature/electronic fault · 2022–2026View diagnostic report →P1D8F00Cooling fan power overvoltage or undervoltage · 2022–2026View diagnostic report →P1D9016Voltage of power battery cell too low · 2022–2026View diagnostic report →P1D9017Voltage of power battery cell too high · 2022–2026View diagnostic report →P1D9100Total voltage of power battery too high · 2022–2026View diagnostic report →P1D9117Total voltage of power battery seriously high · 2022–2026View diagnostic report →P1D9200Total voltage of power battery too low · 2022–2026View diagnostic report →P1D9216Total voltage of power battery seriously low · 2022–2026View diagnostic report →P1EC000High-voltage side voltage too high during DC-DC step-down · 2022–2026View diagnostic report →P1EC100High-voltage side voltage too low during DC-DC step-down · 2022–2026View diagnostic report →P1EC200Low-voltage side voltage too high during DC-DC step-down · 2022–2026View diagnostic report →P1EC300Low-voltage side voltage too low during DC-DC step-down · 2022–2026View diagnostic report →P1EC400Low-voltage side current too high during DC-DC step-down · 2022–2026View diagnostic report →P1EC600High-voltage side current too high during DC-DC step-down · 2022–2026View diagnostic report →P1EC700DC-DC hardware fault during step-down · 2022–2026View diagnostic report →P1ED316Low-voltage-side supply voltage too high · 2022–2026View diagnostic report →P1ED317Low-voltage-side supply voltage too low · 2022–2026View diagnostic report →P1ED400DC output positive disconnected · 2022–2026View diagnostic report →P1ED500AC electric leakage · 2022–2026View diagnostic report →P1EE000DC-DC overtemperature · 2022–2026View diagnostic report →P268600High-voltage interlock fault · 2022–2026View diagnostic report →P268700Power relay echo check fault · 2022–2026View diagnostic report →P268873DC charging positive contactor sintered · 2022–2026View diagnostic report →P268973DC charging negative contactor sintered · 2022–2026View diagnostic report →P268A00DC charging positive contactor echo check fault · 2022–2026View diagnostic report →P268B00DC charging negative contactor echo check fault · 2022–2026View diagnostic report →P268C00DC charging port voltage abnormal · 2022–2026View diagnostic report →P268D00AC charger connection signal inconsistent · 2022–2026View diagnostic report →P2B7000Voltage sampling disconnected - general fault · 2022–2026View diagnostic report →P2B7100Voltage sampling disconnected - serious fault · 2022–2026View diagnostic report →P2B7200Temperature sampling disconnected - general fault · 2022–2026View diagnostic report →P2B7300Temperature sampling disconnected - serious fault · 2022–2026View diagnostic report →P2B7400Power battery overcharge · 2022–2026View diagnostic report →P2B7516Power battery pack undervoltage · 2022–2026View diagnostic report →P2B7517Power battery pack overvoltage · 2022–2026View diagnostic report →P2B7900Battery pack charging overcurrent alarm · 2022–2026View diagnostic report →P2B7B00Shunt temperature generally high · 2022–2026View diagnostic report →P2B7C00Shunt temperature seriously high · 2022–2026View diagnostic report →P2B7D00Temperature sampling fault at shunt · 2022–2026View diagnostic report →P2B7E00Large deviation of current sampling at shunt · 2022–2026View diagnostic report →P2B8000HVSU PACK+ voltage sampling fault · 2022–2026View diagnostic report →P2B8100HVSU LINK+ voltage sampling fault · 2022–2026View diagnostic report →P2B8200HVSU LINK- voltage sampling fault · 2022–2026View diagnostic report →P2B8E00High-voltage-side drive undervoltage · 2022–2026View diagnostic report →P2B8F12High-voltage-side drive overvoltage · 2022–2026View diagnostic report →P2B9000High-voltage-side drive overcurrent (contactor channel) · 2022–2026View diagnostic report →P2B9100DC charging port voltage abnormal · 2022–2026View diagnostic report →P2B9200Abnormal battery temperature difference · 2022–2026View diagnostic report →P2B9211High-voltage-side short to ground (contactor channel) · 2022–2026View diagnostic report →P2B9212High-voltage-side short to power (contactor channel) · 2022–2026View diagnostic report →P2B9213High-voltage-side driver open circuit · 2022–2026View diagnostic report →P2B9298High-voltage-side driver overtemperature · 2022–2026View diagnostic report →P2B9400Power battery overdischarged · 2022–2026View diagnostic report →P2BA300Power battery not equalized at bottom · 2022–2026View diagnostic report →U011187Communication with BMS failed · 2022–2026View diagnostic report →U012187Communication with ABS failed · 2022–2026View diagnostic report →U014087Communication with BCM failed · 2022–2026View diagnostic report →U015887Communication with ESP lost · 2022–2026View diagnostic report →U016487Communication with air conditioner failed · 2022–2026View diagnostic report →U018087Communication with high-voltage-side drive lost · 2022–2026View diagnostic report →U019780Communication with intelligent power brake control module failed · 2022–2026View diagnostic report →U01A500Communication with front motor control unit failed · 2022–2026View diagnostic report →U024E87Communication with ESC failed · 2022–2026View diagnostic report →U029600Communication with power battery management module lost · 2022–2026View diagnostic report →U029787Communication with on-board charger failed · 2022–2026View diagnostic report →U029800Communication between battery management system and DC/DC failed · 2022–2026View diagnostic report →U029887Communication with DC/DC failed · 2022–2026View diagnostic report →U029F87Communication with OBC failed · 2022–2026View diagnostic report →U20B000BIC1 CAN communication timeout · 2022–2026View diagnostic report →U20B100BIC2 CAN communication timeout · 2022–2026View diagnostic report →U20B200BIC3 CAN communication timeout · 2022–2026View diagnostic report →U20B300BIC4 CAN communication timeout · 2022–2026View diagnostic report →U20B400BIC5 CAN communication timeout · 2022–2026View diagnostic report →U20B500BIC6 CAN communication timeout · 2022–2026View diagnostic report →U20B600BIC7 CAN communication timeout · 2022–2026View diagnostic report →U20B700BIC8 CAN communication timeout · 2022–2026View diagnostic report →U300316Battery soft undervoltage · 2022–2026View diagnostic report →U300317Battery soft overvoltage · 2022–2026View diagnostic report →
About this model coverage
EV Diagnostics separates vehicle catalog data from diagnostic applicability. A code is listed as verified for BYD ATTO 3 only when supporting evidence connects that diagnostic identity to the model or its documented model-year range.
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