🔧 KEFICO ECU Repair Service - 9003100383KB

Fixes Transmission Fault Code P0748 + Related Issues
📦 1-3 Day Turnaround | 🛠️ 1-Year Warranty | 📍 UK-Based Service

✅ What This Listing Is:

This is a professional repair service (not a physical ECU for sale) for:

KEFICO Engine ECU - Part Number: 9003100383KB
Commonly used in Hyundai / Kia vehicles with automatic gearboxes, especially base models without a separate TCM.

This ECU may control both engine and gearbox functions . If you're getting gearbox-related codes and shifting problems, your ECU is likely the cause — even if the transmission is mechanically fine .

🔍 Common Fault Codes Covered:

🛑 P0748 - Pressure Control Solenoid "A" Electrical
⚠️ P0753 - Shift Solenoid "A" Electrical
⚠️ P0758 - Shift Solenoid "B" Electrical
⚠️ P0763 - Shift Solenoid "C" Electrical
⚠️ P0768 - Shift Solenoid "D" Electrical
⚠️ P0773 - Torque Converter Clutch Solenoid Circuit

🚗 Typical Vehicle Symptoms:

• ⚙️ Transmission stuck in 3rd gear (limp mode)

• 🔧 Harsh or delayed gear changes

• 🔁 Gears slipping or not engaging

• 💡 Check Engine Light (MIL) ON

• ❗ No separate TCM - gearbox is ECU-controlled

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🔧 What We Offer:

✔️ Full diagnostic testing of your ECU
✔️ Professional internal repair
✔️ Final bench testing to confirm correct operation
✔️ Tracked, insured return shipping included

📬 How It Works:

1. Remove the ECU from your vehicle (check part number is 9003100383KB or compatible)

2. Post it to us at:

📮 The Vehicle Check
Office 13
25 Mollison Avenue
Enfield
London
EN3 7LW

We will repair and return your ECU within 1-3 working days 🚀

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🔁 Service Details:

⏱️ 1-3 Working Day Turnaround
🛡️ 1-Year Warranty (for the fault repaired)
📦 Tracked & Insured Return Delivery

🔄 ✅ Compatible ECU Part Numbers:

These KEFICO ECUs may share similar internal architecture and faults:

• 9003100383KB (this listing)

• 9001140731KD

• 39111‑03855

• 39115‑04411

• 39110‑02EA5

• 39111‑26BE5

• GPEG2.2.10.1

• MG7.9.8 series

• ME17.9.11.1

• G2.2.1 / G2.2.10.1 series

• Other KEFICO ECUs with combined ECU + TCM functions

⚠️ Please confirm your part number and fault codes (e.g. P0748) before sending your ECU.

🛠️ Why Choose Us?

✅ KEFICO ECU & TCM fault specialists
✅ Fixes common gearbox electrical faults
✅ More affordable than ECU replacement
✅ Friendly, UK-based service
✅ Fast turnaround with tested results

💬 Questions?

Message us anytime via eBay - we reply quickly during business hours.
📞 Friendly, professional support from real technicians.

🌟 Get your car shifting smoothly again — without the cost of a new ECU!
📦 Ship Today → Fix in 1-3 Days → Drive Away Happy 🚗💨