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 1.9 SDI Bosch 038906012HR 0281011321
Vendors's code: 0281011321
Product code: 0281011321
Barcode:
Code 39:
ISBN:
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 1.9 SDI Bosch 038906012HR 0281011321
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€30.00
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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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Does the 038906012HR ECU fit a Skoda Fabia 1.9 SDI?
It does if your ECU carries the VW number 038906012HR or the Bosch number 0 281 011 321. This is a used, fully working unit from a Fabia with the 1.9 SDI engine, available locked or unlocked.
Engine Control Unit Skoda Fabia 1.9 SDI Bosch 038906012HR 0281011321
The HR version of the 038906012 ECU is a Bosch unit numbered 0281011321, taken from a Skoda Fabia with the 1.9 SDI diesel engine. It controls injection based on sensor signals and checks immobiliser authorisation when the engine is started.
Markings on the casing
- 038906012HR – VW/Skoda number
- 0281011321 – Bosch number, shown on the label as 0 281 011 321
The Fabia 1.9 SDI had several ECU versions, differing in the letters at the end of the VW number. Check that your casing says exactly 038906012HR – a different suffix means a different version.
What points to a faulty unit?
- the starter turns but the engine will not fire,
- the car goes into limp mode by itself,
- no injection control even though the injectors are working,
- corrosion or signs of moisture on the ECU connector.
It is a good idea to read the fault memory and check wiring continuity first – sometimes the loom is to blame, not the unit.
Choosing an option
First decide who will do the programming. If your workshop does it, a locked ECU is enough – it comes with the donor car's data and immobiliser, ready for you to unlock, program and match yourself. If you would rather receive a unit that is already prepared, order the unlocked option; we do this before dispatch, usually within 1–2 working days.
Not every method (PIN / CAR PASS, Virgin, IMMO OFF, auto programming, cloning) can be used on every ECU. It depends on the part number, software and type of immobiliser, so ask before you buy. All options are described here: ECU preparation options.
Questions and answers
| Where do I find the ECU number on a Fabia? |
|---|
| On the label on the engine control unit casing. Read the VW number and the Bosch number from it. |
| Will the 038906012HR start the car straight after fitting? |
| The locked unit will not – it needs unlocking and matching. The unlocked unit is prepared before dispatch using the agreed method. |
| What condition is this ECU in? |
| It is a used part, fully working and in good condition. You will find the warranty period in the product specification table. |
Want to confirm compatibility before buying? Send a photo of the label to contact@auto24parts.com.
