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
Everything you need to repair BYD electric (EV) and plug-in hybrid cars: wiring diagrams, step-by-step workshop procedures, high-voltage safety steps and fault-code diagnostics. Fast on any phone, in English and Arabic.
Each vehicle comes with up to three types of service information.
Drawings that show how every wire, connector, fuse, relay and control module in the car is connected.
Step-by-step repair instructions with pictures, specifications and tightening torques.
Guides for finding faults: what each fault code (DTC) means and the tests that find the cause.
Live coverage: every model, manual and chapter included in your plan. Right-hand drive (RHD) and left-hand drive (LHD) versions where available.

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Compact SUV
Also sold as: Yuan Up · Yuan Pro EV · Yuan Pro · Nuevo S1 Pro

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Compact SUV
Also sold as: Yuan Plus

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Hatchback

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Sports Sedan

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Also sold as: Seal U

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One plan opens every model and manual listed here, including everything added during your plan.
Workshops, auto electricians and fleet mechanics use it every day to repair BYD electric and hybrid cars.
Pay once for the time you need. No automatic renewal. Buy again to extend.
Perfect for a single job
Best value for workshops
The electronics and mechanics are the same. What changes is where parts are, because the driver sits on the other side.
Practical guides for working on BYD electric and hybrid cars.
BYD Service Portal is an online library of service information for BYD electric and hybrid cars: wiring diagrams, workshop (repair) manuals and diagnostic manuals, in one searchable website made for mechanics and workshops.
Currently: BYD 2022 Tang Ev, BYD ATTO 1 2025 RHD, BYD Atto 2, BYD ATTO 2(AP) RHD, BYD Atto 3, BYD ATTO 8 DM-I-DM-P 2025 RHD 1.5T, BYD ATTO3(2024 LHD), BYD BYD SHARK, BYD Chazor,King,Seal5, BYD D1, BYD DENZA D9 EV 2024(RHD), BYD Dolphin, BYD DOLPHIN SURF(LHD),BYD SEAGULL(LHD),Dolphin Mini, BYD Han Ev, BYD HAN EV 2021, BYD M6, BYD M6-EMAX 7 EV, BYD Seal, BYD SEALION 6 2024 SEA LHD 1.5L, BYD SEALION 7 EV, BYD SHARK 6 DMO RHD, BYD SONG PLUS DM-I 2021 LHD, BYD SONG PLUS DM-I 2023 MEX LHD 1.5T, BYD SONG PLUS DM-I 2024 BRA LHD 1.5L, BYD Song PLUS EV, BYD SONG PLUS EV 2026 LHD, BYD SONG PRO DM-I 2024, BYD SONG PRO DM-I 2026 BRA LHD, BYD T3, BYD TANG EV 2021 LHD, BYD TANG EV MEX 2023. New models are added regularly.
Wiring Diagrams (WD) show how every wire, connector, fuse and module is connected. The Workshop Service Manual (WSM) has step-by-step removal, installation and repair procedures with torque values. The Diagnostic Service Manual (DSM) explains fault codes (DTCs) and the tests that find the cause.
Plans: 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. Access starts right after payment by card or PayPal, with no automatic renewal.
Yes, where available each model is offered in its RHD and/or LHD version. Wiring and repair procedures differ between RHD and LHD cars, so always use the version that matches the car; fault codes and diagnostic tests are the same for both.
Yes. The manuals open fast page by page, the topic list folds away on small screens, and wiring diagrams support pinch-to-zoom.
Yes, the website can be switched to Arabic (right-to-left). The manuals themselves are in English.
For help with payment, sign-in or the manuals, email admin@bydrepairmanual.com (or use the "Need help?" button on every page).