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 |
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⚠️ 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:
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🔍 Full system scan: EV, hybrid, ABS, BMS, ECU, TPMS, HVAC, regen, more
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💻 Software and firmware version checking
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🧰 Real-time data: Battery temp, cell voltage, module status
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🔧 Repair advice and parts support on the spot
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📦 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:
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📍 London, South East, and nationwide
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🕒 Same-day or next-day service available
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🚗 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:
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Sudden loss of power
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Charging port not responding
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Red battery or electric motor warning
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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