BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini Service Manual, Wiring Diagrams & Fault Codes

BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini workshop service manual, wiring diagrams & diagnostic manual (fault codes)

Service information for the BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini (vehicle) in one fast website: Workshop Service Manual, Wiring Diagrams & Diagnostic Service Manual. Open it on a phone or a workshop PC.

What is available for the BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini

EditionSteeringManualsUpdated
BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin MiniLeft-hand drive (LHD)Workshop Service Manual
Wiring Diagrams
Diagnostic Service Manual
October 2026

Last updated: October 2026

What's inside the BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini manuals

Workshop Service Manual

854 procedures · 7 chapters

  • Overview37Introduction · General Repair Information · Vehicle Information
  • Maintenance67Maintenance Information
  • Power69High-voltage System · Thermal Management · Acceleration System · Vehicle Control · Power Accessories
  • Chassis108Suspension System · Drive System · Brake System · Steering System
  • Vehicle Body129Front and Rear Sheet Metal Parts · Windshield · Wiping and Washing · Door
  • Interior & Exterior Trims224Bumper · Instrument Panel System · Rearview Mirror · Seat · Door Trims · Other Interior Trims · Other Exterior Trims
  • Electrical220Supplemental Restraint System · Entry and Immobilizer System · Low-voltage Power Supply and Distribution · Instrument and Warning System · Driver Assistance · Comfort and Convenience System · IVI · Interior Light System · Exterior Light System · A/C · Switch, Wiring Harness and Panel

Wiring Diagrams

343 diagrams · 6 chapters

  • Overview7Description of Diagram · Abbreviations · Common Electrical Symbols · · Common Connector Disconnection Methods · Circuit Detection · Configuration information
  • Distribution and Description of Fuse Box3Front Compartment Fuse Box · Instrument Panel Fuse Box
  • Circuit Diagram of Power Supply2Circuit Diagram of Front Compartment Power Supply · Circuit Diagram of Instrument Power Supply
  • Circuit Diagram of GND Points4Circuit Diagram of Front Compartment Wiring Harness GND Points · Circuit Diagram of Instrument Panel Wiring Harness GND Points · Circuit Diagram of Floor Wiring Harness GND Points · Circuit Diagram of Headliner and Trunk Lid Wiring Harness GND Points
  • Layout of Wiring Harnesses284Front Compartment Wiring Harness · Instrument Panel Wiring Harness I · Instrument Panel Wiring Harness II · Floor Wiring Harness · Headliner Wiring Harness · Front Left Door Wiring Harness · Front Right Door Wiring Harness · Rear Left Door Wiring Harness · Rear Right Door Wiring Harness · Trunk Lid Wiring Harness · Definition of Front Compartment Wiring Harness Terminal · Definition of Instrument Panel Wiring Harness Terminal · Definition of Floor Wiring Harness Terminal · Definition of Headliner Wiring Harness Terminal · Definition of Front Left Door Wiring Harness Terminal · Definition of Front Right Door Wiring Harness Terminal · Definition of Rear Left Door Wiring Harness Terminal · Definition of Rear Right Door Wiring Harness Terminal · Definition of Trunk Lid Wiring Harness Terminal · Connector · GND Point · B01(A) · B01(B) · B1C · B1D · B02(A) · B02(B) · B03(A) · B04 · B04(A) · B05 · B06 · B07 · B07_1 · B08 · B14 · B16 · B17(A) · B22 · B22_1 · B23 · B23_1 · B28 · B34 · B36 · B43 · B44_1 · B44_2 · B44_3 · B46_1 · B46_2 · B46_3 · B53 · B54 · B55 · B55_1 · B55_2 · B67_1 · B69 · B74 · BA17 · BaK48 · BG23 · BG24 · BG28 · BG64(A) · BG64(B) · BG64(C) · BG64(E) · BG82 · BG100 · BK48 · BK51 · BZ04 · G01 · G01(A) · G02 · G03_1 · G07(Z) · G07_(A) · G07_(B) · G07_(C) · G07_(D) · G07_(E) · G07_(H) · G07_(K) · G07_(L) · G07_(M) · G07_(N) · G07_(O) · G11 · G13 · G16 · G18 · G22(B) · G22(C) · G26 · G39 · G43 · G48 · G63 · G64(H) · G64(K) · G64(L) · G82 · G87 · G87_1 · G87_2 · G87_3 · G87_4 · G93(C) · G93(D) · G100 · G116 · Ga32 · Ga91 · GaT21 · Gb04 · GK67(A) · K01 · K01_1 · K02(A) · K02(B) · K03(A) · K03(B) · K04(A) · K04(B) · K05(A) · K05(B) · K06(A) · K06(B) · K08 · K08_1 · K11(A) · K11(B) · K11(C) · K15(A) · K15(B) · K15(C) · K17 · K18 · K22 · K25 · K26 · K31 · K33 · K49 · K57(A) · K57(B) · K68(B) · K68(C) · K68(D) · K68(E) · K68(F) · KB76 · KB77 · KG10 · KG41_1 · KG41_2 · KG44 · KG64(F) · KG64(G) · KG64(J) · KG64(M) · KG87 · KT08 · KU08 · P01 · P03(A) · P03(B) · P04(A) · P04(B) · P13(A) · P16 · PG64(D) · T01 · T02(A)_1 · T02(B)_1 · T03 · T04 · T05 · T06 · T08 · T18 · T21 · TG64(I) · U01 · U02(A)_1 · U02(B)_1 · U03 · U04 · U05 · U06 · V01 · V04 · V05 · W01 · W04 · W05 · YaK20 · YbK16 · YbK16_1 · YbK19(A) · YbK19(B) · YbK21(A) · YbK21(B) · YbK24 · YbK27(A) · YbK27(B) · YbK30 · KJV01 · VJK01 · KJW01 · WJK01 · KJYa01 · YaJK01 · KJYa02 · YaJK02 · YaJYb01 · YbJYa01 · YaJYb02 · YbJYa02 · BJG01 · GJB01 · BJK01 · KJB01 · GJT01 · TJG01 · GJT02 · TJG02 · GJGa01 · GaJG01 · GJP01 · PJG01 · GJU01 · UJG01 · GJU02 · UJG02 · GJK01 · KJG01 · GJK02 · KJG02 · GJK03 · KJG03 · GJK04 · KJG04 · GJGc01 · GcJG01 · GJGb01 · GbJG01 · BJGM8 · GJBM8 · Eg01 · Eg02 · Eg03 · Eg04 · Eg05 · Eg06 · Ep01 · Ey01 · Eb01 · Eb02 · Eb03 · Eb04 · Eb05 · Eb06 · Eb07 · Eb09 · Eb11 · Ek02 · Ek03 · Ek04 · Ek05 · Ek07 · Ek09 · Ek10 · Ek12 · Ey01 · Ea01 · Ea02 · Eb12 · Eb13 · Fr01 · Fr02
  • System Circuit Diagram43High-voltage battery · High-voltage Drive System · HV Cable and Charging Port · Gearshift Control · Steering System · Brake System · Driver Assistance · Authorization and Immobilizer · Door Lock · Window Regulator System · Interior Lights · Exterior Lights · Instrument and Warning System · Multimedia system · A/C system · SRS · Wiping and Washing · Low-voltage Power Supply and Distribution · Rearview Mirror · Driver's Seat · Network and Communication

Diagnostic Service Manual

1,506 diagnostic topics · 4 chapters

  • Overview11General repair information
  • Power432High-voltage system
  • Chassis415Suspension system · Drive system · Brake system · Steering system
  • Electrical648SRS · IVI · Driver assistance · Memory system · Instrument and warning system · Low-voltage power supply and distribution · Smart access system · A/C system · Switches and Panels · Network and communication

BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini 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 DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini 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 DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini 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).

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 DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini wiring diagram?

Yes. The BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini wiring diagrams are online, with clickable fuses, relays, connectors and pin numbers.

Is the BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini 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?

The BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini is available in the LHD version. 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 DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini 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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