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 1.6 Bosch MED7.5.20 03C906057F 0261201139 03C906057M
Vendors's code: 0261201139
Product code: 03C906057F
Barcode:
Code 39:
ISBN:
325,20 zł
Price
325,20 zł
400,00 zł
Price
400,00 zł
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 1.6 Bosch MED7.5.20 03C906057F 0261201139 03C906057M
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(Poland)
from
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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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What does the number 03C906057M on ECU 03C906057F mean?
It is a second VW number assigned to the same Bosch MED7.5.20 unit (0261201139) from a Skoda Fabia 1.6. The ECU is used and fully working, and you can choose between a locked and an unlocked version.
Engine Control Unit Skoda Fabia 1.6 Bosch MED7.5.20 03C906057F 0261201139 03C906057M
In the Skoda Fabia 1.6, engine ECU 03C906057F is responsible for fuel metering and ignition advance, using data from the sensors. It is a Bosch MED7.5.20 – a Motronic variant for a petrol engine with direct injection. Besides the Bosch number 0261201139, the unit carries a second VW number, 03C906057M, and a software number.
How to identify this ECU
- 03C906057F – main VW/Skoda part number
- 03C906057M – second VW number
- 0261201139 – Bosch number (on the label 0 261 201 139)
- 1039S23903 – Bosch software number
- MED7.5.20 – ECU type
Compare both the VW numbers and the software number with your current unit. The last letter of the VW number indicates the software or hardware version, so F and M are not random additions.
When might the engine ECU be faulty?
- the engine cuts out while driving for no obvious reason,
- misfiring on one or more cylinders despite a working ignition system,
- running in limp mode and poor throttle response,
- problems that appeared after welding, a jump start or water ingress.
First check the unit's earths, connectors and power supply, and only then the ECU itself.
How we prepare the ECU for fitting
If you choose the unlocked version, we will prepare ECU 03C906057F before the parcel is dispatched – this usually takes 1–2 working days. The method depends on what the part number, software and immobiliser in your car allow: a PIN / CAR PASS code, Virgin, IMMO OFF, auto programming or data cloning. Not every one of these methods will be possible, so please confirm it with us before you buy.
The locked version reaches you with the previous vehicle's data and immobiliser. It is chosen by garages that carry out unlocking, programming and adaptation themselves. More on the ECU options page.
Questions and answers
| What is the number 1039S23903 for? |
|---|
| It is the Bosch software number. It helps establish whether the loaded software matches that in your 03C906057F ECU. |
| What should I send before ordering the unlocked version? |
| A photo of the label on your current ECU, or all the numbers from it. On that basis, we will establish which preparation method is possible. |
| Can I fit the locked version myself? |
| Only if you have the equipment for unlocking, programming and adaptation. Without it, you are better off choosing the unlocked version. |
| Is the ECU fully working and does it come with a warranty? |
| Yes, the unit is used, fully working and in good condition. You will find the warranty period in the product specification table. |
Before ordering, you can send the numbers from the label to contact@auto24parts.com – we will check compatibility and the available options.
