High-Voltage Power Management Fault Diagnosis – Hybrid & EV Repair UK

Power Management Fault in Your Hybrid or EV? Don’t Ignore Code 22281C

A fault in your high-voltage power management system can disable critical hybrid or EV functions — in some cases, leaving the vehicle in limp mode or refusing to start altogether. One of the most commonly searched fault codes linked to this issue is 22281C, often seen in vehicles from BMW, Mercedes, Toyota, and Hyundai/Kia.

📞 Speak to a Hybrid & EV Technician: 07421 186356
We come to you across London and nationwide.

🔋 What Is High-Voltage Power Management?

The High-Voltage Power Management System (HV-PMS) controls the routing and safety of energy between:

  • The HV battery pack

  • Inverter/Converter unit

  • Electric motor/generator

  • DC-DC converter

  • And other auxiliary high-voltage components

A fault here can affect energy flow, shut down components, or cause the vehicle to enter a safety mode.

🚨 Code 22281C – What It Means

Fault code 22281C typically indicates a control or communication fault in the high-voltage system. This may stem from:

  • 🛠️ Failed HV power distribution module

  • 🧠 Loss of signal from Battery Management System (BMS)

  • 🔌 Faulty power relay control or contactor feedback

  • ⚠️ Internal logic or software fault within the inverter or battery controller

Symptoms often include:

  • ❌ No READY mode

  • ⚠️ Powertrain or drivetrain malfunction warning

  • ⚡ Vehicle shuts off high-voltage system for safety

  • 🚫 EV-only mode disabled

🧰 What Our Mobile EV Technicians Do:

  • 🔍 Code scan & system-level diagnostics

  • 🔧 HV power line testing & module interface check

  • 🧪 Contactor continuity & relay feedback testing

  • 🧠 Live data analysis from BMS and inverter logs

  • 📄 Full diagnostic report for warranty or resale

  • ✅ On-site reset or part replacement where needed

🏁 We Specialise in These Models & More:

  • BMW i3 / i8 / 330e / X5 xDrive45e

  • Toyota Prius / C-HR / Auris / RAV4 Hybrid

  • Hyundai Ioniq / Kona EV / Tucson PHEV

  • Kia Niro Hybrid / EV6 / Sportage PHEV

  • Mercedes EQ Power models (e.g., GLE, E-Class hybrids)

  • Lexus CT200h / RX450h / NX300h

📍 Mobile Diagnostics – London & Beyond

We provide full hybrid & EV diagnostics across:

  • ✅ London – North, South, East, West, Central

  • ✅ Southeast England – Kent, Surrey, Sussex, Essex

  • ✅ Greater Birmingham, Manchester, and Liverpool (by request)

  • ✅ On-site repairs or recovery support where possible

📞 Book Power Management Fault Diagnosis

Don’t take chances with high-voltage system errors. If you’re seeing 22281C or any related power management fault code, call the experts before further damage occurs.

📱 Call or WhatsApp Now: 07421 186356
🌐 www.fixanycar.co.uk
🛠️ Hybrid & EV Experts – Mobile & Workshop Options Available

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