BYD Car Fault Codes Explained | Mobile Diagnostics & Repair – 07421 186356

BYD Car Fault Codes – What They Mean and What to Do

⚠️ If You’ve Seen a Warning Symbol or Code – Don’t Ignore It

Modern BYD cars, including the Atto 3, Tang, e6, Qin, and F3, rely on sophisticated onboard diagnostics. When something goes wrong, the system may flash a fault code—or worse, enter limp mode.

But unlike older cars, you can’t decode these issues without the right scan tools and experience.


🔍 Common BYD Fault Codes & Warning Lights:

Code / Symbol Possible Meaning Urgency
⚠️ EV System Fault High-voltage system malfunction 🔴 Critical
🔋 Battery System Alert Battery cell imbalance or degradation 🟠 Moderate
🚗 Regenerative Fault Regen braking not functioning correctly 🟠 Moderate
🧠 ECU Comm Failure One or more control modules not responding 🔴 Critical
🛞 TPMS Warning Low tyre pressure or faulty TPMS sensor 🟡 Mild
🛠️ Check System Light General fault – requires detailed diagnostic scan 🔴 Critical

💡 We use advanced scan tools designed for BYD’s proprietary system architecture – not cheap code readers that miss key data.


🔧 What We Offer – Mobile BYD Fault Code Diagnosis and Repair:

  • 🔍 Full system scan: EV, hybrid, ABS, BMS, ECU, TPMS, HVAC, regen, more

  • 💻 Software and firmware version checking

  • 🧰 Real-time data: Battery temp, cell voltage, module status

  • 🔧 Repair advice and parts support on the spot

  • 📦 Reset and recalibration if fixable without parts


🚐 Mobile Service Across London and Nationwide

Whether your BYD is stuck in limp mode or showing warning lights intermittently, we come to you:

  • 📍 London, South East, and nationwide

  • 🕒 Same-day or next-day service available

  • 🚗 At your home, workplace, or roadside

📲 Call or WhatsApp now: 07421 186356
🌐 Visit: www.fixanycar.co.uk


🧠 Why You Shouldn’t Ignore BYD Fault Codes

Even minor warning lights can mask serious system instability—especially in EVs. Some early warning signs include:

  • Sudden loss of power

  • Charging port not responding

  • Red battery or electric motor warning

  • Clicking relays or HV interlock issues

If left unchecked, they can lead to battery degradation, BMS failure, or immobilisation.


📞 Need BYD Faults Decoded? Call 07421 186356

We don’t guess. We scan, explain, and fix what’s wrong—on-site and without dealer delay.

✅ 100% mobile
✅ Hybrid & EV specialists
✅ Transparent, straight-talking advice

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