A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
Engine Control Unit Skoda 03F906070FC 5WP44778
Vendors's code: 5WP44778
Product code: 03F906070FC
Barcode:
Code 39:
ISBN:
€182.93
Price
€182.93
€225.00
Price
€225.00
Select a product option:
Individual variants may differ in price
product option
Important: Depending on the ECU type and vehicle model, not all of the options listed below may be available.
To select the correct option for your vehicle and ECU, please contact us before purchasing:
contact@auto24parts.com
1. Locked
This option is intended for professional workshops with the required specialist equipment and technical knowledge.
The ECU has been removed from a vehicle intended for recycling and still contains the immobilizer data and other information from the previous vehicle. Before it can be used in another car, it must be unlocked and then programmed using specialist automotive diagnostic equipment.
2. Unlocked
Several preparation methods may be available. The possible options depend on the ECU type, vehicle model and immobilizer system. Please contact us before purchasing, as some preparation methods are not available for every ECU.
Our electronics specialists can prepare the ECU in one of the following ways:
a) ECU with PIN code (Car Pass)
The PIN code is supplied, but programming with a suitable diagnostic tool is still required. After installing the ECU, it must be reset using the supplied PIN code and then programmed to the vehicle’s immobilizer system.
b) VIRGIN ECU
The data from the previous vehicle is removed and the ECU is restored to a clean, factory-like state. After installation, it must be programmed to the vehicle using a compatible specialist diagnostic tool. Unless another preparation method is specified in the product description, this is the standard unlocking option for most of our ECUs.
c) Plug & Play – IMMO OFF
The immobilizer function is disabled in the ECU. After installation, the engine can start without additional immobilizer programming. Please note that the vehicle will no longer have an active immobilizer function, and an immobilizer warning light or fault code may remain, depending on the vehicle model.
d) Plug & Play – Automatic Programming
After installation, the ECU automatically learns and saves the required vehicle data. No additional programming is normally required.
e) Plug & Play – 1:1 Clone
The data from your original ECU is copied to another fully functional ECU. The cloned unit is then ready for installation without additional programming.
You must send us your original ECU so that we can transfer its data to the replacement unit.
The original ECU must have working communication with the vehicle, a diagnostic tool or our programming equipment. If the required data cannot be read, a complete 1:1 clone may not be possible.
3. Complete Plug & Play Set
A complete matched set containing the ECU, immobilizer components and all other parts required to start the vehicle without additional programming. All components supplied in the set must be installed in the vehicle.
Important:
Dispatch time depends on the selected option. If an unlocked or specially prepared version is ordered, the preparation service usually requires an additional 1–2 business days.
Ask about the product
Engine Control Unit Skoda 03F906070FC 5WP44778
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€30.00
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(Poland)
from
€30.00
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shipping
(Poland)
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
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What does the number 03F906070FC on an engine ECU mean?
It is the VW/Skoda part number: 03F 906 070 indicates an engine control unit, and the letters FC its specific version. The same unit also carries the manufacturer's number 5WP44778. We offer it used and fully working.
Engine Control Unit Skoda 03F906070FC 5WP44778
The number 03F906070FC tells you more than you might think. In VW numbering, group 906 covers engine control units, and the last two letters distinguish software and hardware versions. This unit controls a petrol engine in a Skoda; we do not give the model or engine size, because matching is based on the numbers.
Markings on the casing
- 03F906070FC – VW/Skoda part number with the version letters FC
- 5WP44778 – the ECU manufacturer's number
Both numbers must match the label on your current unit. 03F906070 ECUs with different closing letters differ in software or equipment and are not always interchangeable.
How to recognise a faulty ECU
- the petrol engine will not start despite working ignition and fuel supply,
- intermittent running, jerking or misfires not caused by the plugs or coils,
- internal unit faults or no response at all during diagnostics,
- sudden switching into limp mode.
First check the battery voltage, fuses and connectors – only suspect the unit itself once the power supply is correct.
Supply options
We can prepare the ECU before dispatch – this is the unlocked version, usually ready within 1–2 working days. If your garage prefers to do everything itself, choose the locked version: it contains the previous car's data and immobiliser, and the mechanic carries out the unlocking, programming and adaptation.
Whether PIN / CAR PASS, Virgin, IMMO OFF, auto programming or cloning is available depends on the part number, software and immobiliser. Before placing your order, ask what is possible for this particular unit. See also ECU options.
Questions and answers
| Will ECU 03F906070FC replace a 03F906070 unit with a different suffix? |
|---|
| Do not assume so. Different letters mean a different version – compare the full number, including FC. |
| Which Skoda is this unit for? |
| The model is not specified. What matters is that the numbers 03F906070FC and 5WP44778 match your label. |
| What condition is the ECU in? |
| It is a used part, fully working and in good condition. You will find the warranty period in the product specification table. |
If you would like to confirm compatibility, email contact@auto24parts.com with the numbers from your ECU.
