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 EDC17CP20 03L906019EK 0281017698
Vendors's code: 0281017698
Product code: 0281017698
Barcode:
Code 39:
ISBN:
€650.41
Price
€650.41
€800.00
Price
€800.00
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 Volkswagen Bosch EDC17CP20 03L906019EK 0281017698
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Shipping
from
€30.00
-
shipping
(Poland)
from
€30.00
-
shipping
(Poland)
Price 30 euros applies shipments to 5 kg on worldwide. Above this weight, please contact us by email to check price
Shipping cost for the selected product
The shipping cost applies to this product (in the selected variant - if applicable). It may change after adding other products to the cart.
How can I check whether 03L906019EK will replace my ECU?
Compare the label: the VW number should read 03L906019EK and the Bosch number 0 281 017 698. This is a used, working EDC17CP20 module that we dispatch locked or unlocked.
Engine Control Unit Volkswagen Bosch EDC17CP20 03L906019EK 0281017698
Bosch produced ECUs for diesel engines in the EDC17CP20 family, and the 03L906019EK module is one of them. Its job is to control fuel injection and monitor engine operation based on information from the sensors. If it fails, the Volkswagen may not start at all.
Numbers to compare
- 03L906019EK – VW number from the sticker on the casing
- EDC17CP20 – family designation, useful when programming
- 0281017698 – Bosch number; the 0 281 prefix denotes a diesel engine ECU (label: 0 281 017 698)
The number starts with 03L906019, not 03L906022, so do not confuse it with similar modules. The EK suffix describes the software or hardware version.
When might the ECU be faulty?
- no response after water damage, a voltage surge or failed programming,
- faults returning straight after being cleared, even though the wiring is sound,
- limp mode and a noticeable loss of power with no sensor fault,
- a flashing glow plug warning light combined with starting problems.
Start with the fuses and the condition of the connector; moisture in the plug is a common cause of such problems.
Two options to choose from
We dispatch an unlocked module only once it has been prepared in our workshop – allow 1–2 working days for this as a rule. In the locked version, we change nothing in the ECU: it retains the data and immobiliser of the previous car. This option is aimed at workshops that program and adapt ECUs themselves.
Unlocking options vary between ECUs: PIN / CAR PASS, Virgin, IMMO OFF, auto programming and clone are only possible with the right number, software and immobiliser. Write to us before buying and we will check your case. All the options are described in detail on the ECU preparation options page.
Questions and answers
| Is the module new? |
|---|
| No – it is a used ECU, working and in good condition. You will find the warranty period in the product features table. |
| Will the 03L906019EK ECU start the engine immediately after fitting? |
| Not the locked version – it has to be programmed and adapted to the immobiliser. With the unlocked version, it depends on the preparation method, which we agree before purchase. |
| Who can program the locked version? |
| A workshop or auto electronics specialist with equipment for programming ECUs and adapting immobilisers. If you do not have access to this, choose the unlocked version. |
| Can the data be transferred from my old ECU? |
| Cloning is one possible method, but not for every unit. It depends on the number, software and immobiliser – ask before buying. |
If in doubt, email contact@auto24parts.com; give the VW number and the manufacturer's number from your module.
