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 Volkswagen Bosch EDC17CP14 03L906022S 0281014700
Vendors's code: 0281014700
Product code: 03L906022S
Barcode:
Code 39:
ISBN:
£370.74
Price
£370.74
£456.01
Price
£456.01
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 Volkswagen Bosch EDC17CP14 03L906022S 0281014700
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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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Looking for a 03L906022S ECU for a diesel Volkswagen?
We have a used, working ECU with VW number 03L906022S and Bosch number 0281014700 (label: 0 281 014 700), from the EDC17CP14 family. You can choose the locked or unlocked version.
Engine Control Unit Volkswagen Bosch EDC17CP14 03L906022S 0281014700
The number 03L906022S ends in just one letter, which is easy to overlook when comparing – yet it is precisely this letter that defines the module version. The ECU is a Bosch EDC17CP14 for a diesel engine: it calculates the fuel quantity, sets the injection timing and monitors the sensors. Matching to a Volkswagen is decided by the number, not the model alone.
Numbers to check
- 03L906022S – Volkswagen designation, the easiest way to find a replacement
- 0281014700 – Bosch number (on the label: 0 281 014 700)
- EDC17CP14 – Bosch ECU type
The 03L906022S ECU is not the same as 03L906022 modules with a two-letter suffix – each suffix is a different software or hardware version. Make sure that only the letter S follows the digits.
Symptoms of a faulty engine control unit
- limp mode and a noticeable loss of power with no sensor fault,
- uneven idling that cannot be explained by the injectors or sensors,
- the engine cutting out or jerking while driving even though the ancillaries are working,
- faults returning straight after being cleared, even though the wiring is sound.
Before deciding to replace it, check the fuses, earths and ECU power supply – a damaged wiring loom produces similar symptoms.
Locked or unlocked version?
We offer it locked or unlocked. If you choose the locked option, you receive the module with the previous vehicle's data, including the immobiliser – useful if your workshop will carry out the unlocking and adaptation itself. The unlocked option means we prepare the ECU before dispatch; as standard this takes 1–2 working days.
Before choosing the unlocked version, ask about the available methods. PIN / CAR PASS, Virgin, IMMO OFF, auto programming or cloning cannot be carried out for every number and software – much also depends on the immobiliser.
You can read more about the versions and preparation methods on the ECU preparation options page.
Questions and answers
| Why is the car model not given in the description? |
|---|
| Because compatibility is decided by the number, not the model name. Compare the VW number with the label on your ECU. |
| What should I send before ordering the unlocked version? |
| A photo of the label or all the numbers from your current ECU. Based on these, we will check which unlocking methods are possible. |
| How long does it take to prepare the unlocked version? |
| Usually 1–2 working days, after which we dispatch the ECU. |
| What condition is this ECU in? |
| It is a used part, working and in good condition. You will find the warranty period in the product features table. |
Send a photo of the label to contact@auto24parts.com – we will check the numbers and options.
