BYD HAN EV 2021 Service Manual, Wiring Diagrams, Fault Codes & Body Repair

BYD HAN EV 2021 workshop service manual, wiring diagrams, diagnostic manual (fault codes) & body repair manual

Service information for the BYD HAN EV 2021 (vehicle) in one fast website: Workshop Service Manual, Wiring Diagrams, Diagnostic Service Manual & Body Repair Manual. Open it on a phone or a workshop PC.

What is available for the BYD HAN EV 2021

EditionSteeringManualsUpdated
BYD HAN EV 2021StandardWorkshop Service Manual
Wiring Diagrams
Diagnostic Service Manual
Body Repair Manual
November 2026

Last updated: November 2026

What's inside the BYD HAN EV 2021 manuals

Workshop Service Manual

1,071 procedures · 6 chapters

  • Overview30Foreword · General Service Information · Vehicle Information
  • Power90High Voltage System · Control Mechanism · Thermal Management · Acceleration System · Vehicle Control · Power Accessories
  • Chassis159Suspension System · Drive System · Brake System · Steering System
  • Body139Front and Rear Sheet Metal Parts · Windshield · Wiper and Washer · Doors · Roof
  • Interior and Exterior Trim364Bumpers · Instrument Panel System · Rearview Mirror · Seat · Door Trim · Other Trims
  • Electrical289Safety and Protection System · Access and Anti-theft System · Charging Port Cap Control · Low Voltage Power Supply and Distribution · Instrumentation and Warning Systems · Driver Assistance · Comfort and Convenience System · Media Entertainment · Interior Lighting System · Exterior Lighting System · Air Conditioner · Switch, Wiring Harness and Panel

Wiring Diagrams

543 diagrams · 6 chapters

  • Overview6Drawing Description · Terms and Abbreviations · Common Electrical Symbols · Common Connector Disconnection Method · Common Connector Clamping Structures · Circuit Testing
  • Distribution and Description of Distribution Box5Front Compartment Distribution Box · Instrument Distribution Box · Rear Compartment Distribution Box
  • Power Supply - Circuit Diagram3Front Compartment Distribution Box - Circuit Diagram · Rear Compartment Distribution Box - Circuit Diagram · Instrument Distribution Box - Circuit Diagram
  • Ground Point - Circuit Diagram3Ground Point of Front Compartment Wiring Harness - Circuit Diagram · Ground Point of Instrument Wiring Harness - Circuit Diagram · Ground Point of Floor Wiring Harness - Circuit Diagram
  • Wiring Harness Layout471Front Bumper Wiring Harness · Front Compartment Wiring Harness · Instrument Wiring Harness · Floor Wiring Harness · Ceiling Wiring Harness · Rear Bumper Wiring Harness · Left Front Door Wiring Harness · Right Front Door Wiring Harness · Left Rear Door Wiring Harness · Right Rear Door Wiring Harness · Rear Powertrain Wiring Harness · Female&male Connector · Ground Point · Terminal Definition (Floor Wiring Harness 2) · Terminal Definition (Left Front Door Wiring Harness) · Terminal Definition (Right Front Door Wiring Harness) · Terminal Definition (Left Rear Door Wiring Harness) · Terminal Definition (Right Rear Door Wiring Harness) · Terminal Definition (Instrument Panel Wiring Harness) · Terminal Definition (Battery Positive Line) · Terminal Definition (Front Compartment Wiring Harness) · Terminal Definition (Front Bumper Line) · Terminal Definition (Rear Bumper Line) · Terminal Definition (Ceiling Wiring Harness) · Terminal Definition (Floor Wiring Harness) · Terminal Definition (Ground Wiring Harness of Charging and Distribution Assembly) · BJG01 · GJB01 · BJK03 · KJB03 · BJK04 · KJB04 · BJK05 · KJB05 · BJK01 · KJB01 · BJK02 · KJB02 · KJG01 · GJK01 · KJG03 · GJK03 · KJKa01 · KaJK01 · KJR01 · RJK01 · KJR04 · RJK04 · KJT02 · TJK02 · KJT03 · TJK03 · KJU02 · UJK02 · KJU03 · UJK03 · KJZc01 · ZcJK01 · KJZd01 · ZdJK01 · PJG01 · GJP01 · PJG02 · GJP02 · VJK01 · KJV01 · WJK01 · KJW01 · WJK02 · KJW02 · BJD01 · DJB01 · BJD02 · DJB02 · GaJG01 · GJGa01 · KJH01 · HJK01 · KJT01 · TJK01 · KJU01 · UJK01 · GJK04 · KJG04 · RJK03 · KJR03 · Eb01 · Eb02 · Eb03 · Eb04 · Eb05 · Eb06 · Eb07 · Eb08 · Eb09 · Eb10 · Ek01 · Ek02 · Ek03 · Ek04 · Ek06 · Ek07 · Ek08 · Ek09 · Ek10 · Ek11 · Ek12 · Ek13 · Ek14 · Ek15 · Eg03 · Eg04 · Eg07 · Eg08 · Eg10 · Eg11 · Eg02 · Eg13 · Eg01 · KB46_C · KB46_B · B46_A · KB78(D) · KG64(A)_4 · KP01(D) · K06(B) · K06(A) · KP01(C) · K27(A) · KG93(A)_2 · KG93(A)_1 · KG93(B)_2 · KG93(B)_1 · KG93(D)_1 · KB78(C) · K04(C) · K04 · K01 · K01_1 · KG64(J) · KG64(I) · KG64(E) · KG64(A)_2 · KG64(D) · TG64(H) · T10 · T06 · T15_1 · T01 · T05 · TG92 · T02(A)_2 · T02(A) · T07 · T15_1 · T20 · T20_1 · T17 · T02(B) · T02(B)_2 · T18 · T04_1 · T04 · T03 · U03 · U02(B)_2 · U02(B) · U04_1 · U04 · U15_1 · U02(A)_2 · U02(A) · U07 · U05 · U01 · U15 · U06 · U10 · UG86(I) · V05 · V02(B)_2 · V02(A) · V02(A)_2 · V02(B) · V03_1 · V03 · V09 · V10 · V01 · V04 · W04 · W01 · W10 · W09 · W05 · W02(A) · W02(A)_2 · W02(B)_2 · W02(B) · W03_1 · W03 · G111 · G18 · G02 · Ga05 · G109(A) · G82 · G72(A) · G64(G) · G54 · G101 · G26 · G63 · G11 · G46 · G72 · G108 · G72(B) · G87 · G45(A) · G45(B) · G72(D) · G86(H) · G99(B) · G64(F) · G72(E) · G03(A) · G01(A) · G01(B) · G93(B) · G95 · G13 · G47 · G94(B) · G94(D) · G43 · G48 · G91 · G33 · G07(G) · G07(R) · G39 · G94(A) · G58 · G99(A) · G94(C) · G16(A) · G16(B) · G07(E) · G07(T) · G07(A) · GB23_1 · G38(A) · G38(B) · G55 · GB34 · G07(C) · G48_1 · G07(B) · G07(I) · G07(J) · G93(C)_1 · G93(C)_2 · G93(C)_3 · G91_1 · G07(Z) · GT20 · Z04 · B44_1 · BG52(A) · B02(B) · B06 · B56 · B78(B) · B16 · B43 · B43_1 · B28 · B29 · B73 · B29(D) · BG22 · KG86(A) · BG86(D) · BG86(B) · BG42 · B76 · B36 · BK51 · B55 · B74 · B17 · B04 · B23 · B22 · B13(A) · B29(C) · B22_1 · BG28 · BG64(C) · BG64(B) · BG82 · B03 · BK50 · B1C · B1D · B78(A) · B44_3 · B44_4 · B44_6 · B05 · BA17 · B13 · B29(A) · B02(A) · BG52(B) · B14 · B12 · B07(A) · B67 · B08 · B07(B) · ZaBG52(B) · ZbBG52(A) · ZbB78(B) · ZaB01 · ZbB01 · ZaB78(A) · DB11(E) · DB82(A) · DB60(B) · DB11(A) · DB11(A)_1 · DB11(B) · DB11(B)_1 · DB11(D) · DB11(D)_1 · DB11(C) · DB11(C)_1 · DB05_1 · DB40 · DB40_1 · D01 · DB60 · DB60_1 · DB60(A) · DB82(B) · DB11(F) · R06 · R01_1 · R01 · R02_1 · R02 · RK41 · RB82(C) · R06(B) · R07(B) · RK21(A) · RK16_1 · RK16_2 · RK21(B) · R04 · R04_1 · R07 · R03 · R03_1 · RB82(D) · R07(B) · P10(A) · P03(A) · P08(A) · P08 · P01 · PG87 · PG06 · P02(B) · P13 · P13_1 · P02 · P15 · P05 · P17 · P08(B) · P10(B) · P03(B) · PG86(C) · KG86(G) · KG86(E) · KG07(U) · KG07(Q) · KG10 · KG07(H) · K75(A) · K75(B) · K03(B) · K02 · K02_1 · K05(B) · K04_1 · K04(B)_2 · K04(B) · KU08 · K67 · K68(C) · K05(D) · K20 · K27(B) · K04(D) · KG87_1 · K86 · K12 · K14_1 · K28(B) · K28(C) · K22(B) · K22(A) · K28(D) · K28(A) · K68(B)_1 · K03(D) · K68(B) · KB50 · K63 · KB49(A) · KB53(A) · K53(E) · K53(B) · K53(C) · K53(D) · K11(D)_1 · K11(B)_2 · K11(A) · K11(B) · K11(C) · K54 · K18 · K26 · K03(A) · K05(A) · K04(A) · KT08 · K05(C) · K68(A) · K03(C) · K68(A)_1 · KG26 · K68(D) · K25 · K24_1 · K19(A) · K30 · K19(B) · KB53(B) · Kk1_1 · Kk1 · K17 · Kk1 · K14_1(B) · K28(B)_2 · K28(A)_2 · K11(C)_2 · K28(C)_2 · K11(A)_2 · K11(D)_2 · K54(A) · K14_1(C) · K42(B) · K42(A) · KY34 · Fu01 · Fu02
  • System circuit diagram55Power Battery · High Voltage Drive System · High Voltage Cable and Charging Port · Shift Control · Steering System · Suspension System · Brake System · Assisted Driving · Authorization and Anti-theft · Door Lock · Exterior Lighting System · Interior Lighting System · Instrumentation and Warning Systems · Multimedia System · Networking and Communication · Air Conditioning System · Supplemental Restraint System · Electric Tailgate · Sunroof · Window Lift System · Low Voltage Power Supply and Distribution · Wiper and Washer · Rearview Mirror

Diagnostic Service Manual

2,697 diagnostic topics · 6 chapters

  • Overview11General repair information
  • Power416High-voltage system
  • Chassis535Brake system · Suspension system · Drive system · Steering system
  • Vehicle body30Wiping and washing · Roof
  • Interior & exterior trims49Rearview mirror · 电除霜 · 座椅
  • Electrical1,656SRS · Entry and immobilizer system · Charging port cap control · Low-voltage power supply and distribution · Instrument and warning system · Driver assistance · Comfort and convenience system · IVI · Interior lighting system · Exterior light system · A/C · Switch and Wiring Harness · 网关

Body Repair Manual

96 body repair topics · 2 chapters

  • Overview59Preface · General Service Information
  • Body37Body Sheet Metal · Body Painting

BYD HAN EV 2021 workshop service manual

Step-by-step repair instructions with pictures, specifications and tightening torques.

  • Remove and install parts in the right order
  • Look up torque values, fluids and capacities
  • Follow safety steps, e.g. high-voltage power-off

High-voltage safety steps for BYD EVs.

BYD HAN EV 2021 wiring diagrams

Drawings that show how every wire, connector, fuse, relay and control module in the car is connected.

  • Trace a wire from one part to another
  • Find which fuse or relay feeds a circuit
  • Check connector pin numbers and wire colours

In the diagram viewer every clickable component code is marked in blue: click it to see every linked diagram and where the part sits in the car. How to read BYD wiring diagrams.

BYD HAN EV 2021 diagnostic manual (fault codes)

Guides for finding faults: what each fault code (DTC) means and the tests that find the cause.

  • Look up a fault code (DTC) and its causes
  • Follow step-by-step tests with expected values
  • Diagnose a symptom when there is no code

Guide to BYD fault codes (DTC).

BYD HAN EV 2021 body repair manual

Body and collision repair: body dimensions, panel replacement, sectioning and welding points.

  • Check body and frame dimensions after an accident
  • Replace or section body panels
  • Find welding, cutting and sealing points

Right-hand drive or left-hand drive?

The electronics and mechanics are the same. What changes is where parts are, because the driver sits on the other side.

Who uses it

Independent workshopsRepair BYD cars without waiting for dealer information.
Auto electriciansTrace circuits, fuses, connectors and pin numbers in minutes.
Fleet & taxi mechanicsKeep BYD fleets on the road with the right procedures.
EV techniciansFollow high-voltage safety steps and battery system procedures.

Frequently asked questions

Is there a BYD HAN EV 2021 wiring diagram?

Yes. The BYD HAN EV 2021 wiring diagrams are online, with clickable fuses, relays, connectors and pin numbers.

Is the BYD HAN EV 2021 service manual a PDF?

No. The manuals open online in your browser, page by page, with search and links between topics, on a phone or a PC. There are no large files to download.

Which version should I use, RHD or LHD?

Use the version that matches the steering side when tracing wires or doing repairs; fault codes and tests are the same for both.

How much does BYD HAN EV 2021 manual access cost?

One plan opens every model and manual on the site: day $5.00 per day, Weekly $25.00 per week, Monthly $50.00 per month, yearly $220.00 per year, 2 year $320.00 per 2 years. No automatic renewal.

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