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 Fabia 1.2 TSI 03F906070AM 5WP44630
Vendors's code: 5WP44630
Product code: 03F906070AM
Barcode:
Code 39:
ISBN:
£154.39
Price
£154.39
£189.90
Price
£189.90
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 Fabia 1.2 TSI 03F906070AM 5WP44630
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£22.79
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(Poland)
from
£22.79
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(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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The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
What does the AM suffix in 03F906070AM mean?
The letters AM identify a specific version of the 03F906070 ECU for the Fabia 1.2 TSI. The unit also carries the manufacturer's number 5WP44630. The unit on offer is used and fully working.
Engine Control Unit Skoda Fabia 1.2 TSI 03F906070AM 5WP44630
In a Skoda Fabia with the 1.2 TSI petrol engine, the engine is managed by ECU number 03F906070AM. Using sensor data, the unit calculates the fuel quantity and ignition timing, and makes sure the engine runs smoothly in all conditions. This unit has been removed from a vehicle and tested; it is fully working and in good condition.
How to identify the ECU
- 03F906070AM – VW/Skoda part number; AM is the version code
- 5WP44630 – the ECU manufacturer's number
The Fabia 1.2 TSI was fitted with 03F906070 ECUs bearing various letters. Their software is not identical, so look for exactly this suffix and the same manufacturer's number.
Symptoms that suggest the ECU
- sudden switch into limp mode with no sensor fault,
- the TSI engine will not start and the unit does not respond during diagnostics,
- misfires that replacing the coils does not cure,
- a fault after water ingress or a voltage spike in the electrical system.
Check the wiring loom, connectors and power supply first – a damaged wire can mimic an ECU failure. It is also worth reading the fault memory before deciding on a replacement.
Before you buy: choosing the version
A locked ECU contains another car's data and immobiliser and has to be unlocked, programmed and adapted at a garage. We prepare the unlocked ECU before dispatch – this usually takes 1–2 working days.
Not every method can always be used: PIN / CAR PASS, Virgin, IMMO OFF, auto programming, cloning. It depends on the part number, software version and immobiliser, so please ask us beforehand. Everything about the options: ECU options.
Questions and answers
| Will ECU 03F906070AM start the Fabia 1.2 TSI straight after fitting? |
|---|
| The locked version will not – it has to be matched to the immobiliser. With the unlocked version, it depends on the preparation method chosen. |
| Can I use a 03F906070 ECU with a different letter? |
| We do not recommend it – the letters denote different software versions. |
| What is the warranty? |
| The ECU is used, fully working and in good condition. You will find the warranty period in the product specification table. |
Questions about this unit? Email contact@auto24parts.com.
