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
For mechanics & workshops
BYD service manuals, wiring diagrams & diagnostics, online
Everything you need to repair BYD electric and hybrid cars: wiring diagrams, step-by-step workshop procedures and fault-code diagnostics. Fast on any phone, in English and Arabic.
Three manuals for every car
Each vehicle comes with up to three types of service information.
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
Diagnostic Service Manual
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
BYD models covered
Right-hand drive (RHD) and left-hand drive (LHD) versions where available.
BYD ATTO 1 2025 RHD
Vehicle · RHD
- DSM
- WSM
- WD
BYD Atto 2
Compact SUV · AP
- WD
BYD ATTO 2(AP) RHD
Vehicle · RHD
- DSM
- WSM
- WD
BYD Atto 3
Compact SUV · RHD / LHD
- WD
- DSM
- WSM
BYD ATTO3（2024 LHD）
Vehicle · LHD
- WD
BYD DENZA D9 EV 2024（RHD)
Vehicle · RHD
- DSM
- WSM
- WD
BYD Dolphin
Hatchback · RHD / LHD
- WD
- DSM
- WSM
BYD Han Ev
Vehicle · LHD
- WD
BYD M6
Vehicle · RHD
- DSM
- WSM
- WD
BYD M6-EMAX 7 EV
Vehicle · LHD
- WD
BYD Seal
Sports Sedan · RHD / LHD
- WD
- DSM
- WSM
BYD SEALION 6 2024 SEA LHD 1.5L
Vehicle · LHD
- WD
BYD SEALION 7 EV
Vehicle · RHD
- DSM
- WSM
- WD
BYD SHARK 6 DMO RHD
Vehicle · RHD
- DSM
- WSM
- WD
BYD T3
Vehicle · RHD
- DSM
- WSM
- WD
Simple prices, no subscription trap
Pay once for the time you need. No automatic renewal. Buy again to extend.
day
$5.00 / day
Weekly
$25.00 / week
Perfect for a single job
Monthly
$50.00 / month
Best value for workshops
yearly Save 64%
$220.00 / year
2 year Save 74%
$320.00 / 2 years
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.
Wiring DiagramsUse the matching version for tracing wires and pins.
Workshop Service ManualAlways use the matching version for repairs.
Diagnostic Service ManualFault codes and tests are the same for both.
Frequently asked questions
What is BYD Service Portal?
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.
Which BYD models are covered?
Currently: BYD ATTO 1 2025 RHD, BYD Atto 2, BYD ATTO 2(AP) RHD, BYD Atto 3, BYD ATTO3（2024 LHD）, BYD DENZA D9 EV 2024（RHD), BYD Dolphin, BYD Han Ev, 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 T3. New models are added regularly.
What is included?
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.
How much does it cost?
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.
Are there right-hand drive (RHD) and left-hand drive (LHD) manuals?
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.
Does it work on a phone or tablet?
Yes. The manuals open fast page by page, the topic list folds away on small screens, and wiring diagrams support pinch-to-zoom.
Is it available in Arabic?
Yes, the website can be switched to Arabic (right-to-left). The manuals themselves are in English.
How do I contact support?
For help with payment, sign-in or the manuals, email admin@bydrepairmanual.com (or use the "Need help?" button on every page).