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 Golf Bosch 028906021Q 0281001241
Vendors's code: 0281001241
Product code: 0281001241
Barcode:
Code 39:
ISBN:
€81.30
Price
€81.30
€100.00
Price
€100.00
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 Golf Bosch 028906021Q 0281001241
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from
€30.00
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shipping
(Poland)
from
€30.00
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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.
Are 0281001241 and 0281001242 the same 028906021Q ECU?
Two Bosch numbers are assigned to this part: 0281001241 (shown on the label as 0 281 001 241) and 0281001242. The VW number is 028906021Q. A used, fully working diesel engine ECU from a Volkswagen Golf – compare the numbers with your label before ordering.
Engine Control Unit Volkswagen Golf Bosch 028906021Q 0281001241
What sets the 028906021Q ECU apart is that the part data lists two Bosch numbers – 0281001241 and 0281001242. Both start with 0 281, the designation for diesel engine ECUs. The module comes from a Volkswagen Golf and is responsible for fuel injection and starting.
Numbers to compare
- 028906021Q – Volkswagen number; the letter Q is the version
- 0281001241 – Bosch number from the label, written as 0 281 001 241
- 0281001242 – additional Bosch number assigned to this part
The most important is the VW number together with the letter Q. If your ECU shows a different Bosch number, get in touch – we will check whether this module is suitable.
Symptoms that call for an ECU check
- the Golf will not start although fuel reaches the pump,
- the engine suddenly cuts out while driving,
- no response to the accelerator pedal,
- the diagnostic tool does not detect the engine computer.
Before replacing the module, check the condition of the wiring loom and the power supply relay.
How you can buy this ECU
Locked option: the module retains the data and immobiliser from the previous Golf, and the workshop unlocks, programs and adapts it itself.
Unlocked option: we prepare the ECU before dispatch, usually within 1–2 working days. The availability of solutions such as PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone depends on the part number, software and immobiliser, so it is worth asking before you buy. Both options explained: ECU options.
Questions and answers
| My ECU has the number 0281001242 – will this one fit? |
|---|
| That number is assigned to this part, but please send a photo of the label so that we can also compare the VW number. |
| What does the 0 281 prefix mean? |
| Bosch uses it in the numbers of diesel engine ECUs. |
| How long does it take to prepare the unlocked version? |
| Usually 1–2 working days. |
| What condition is the module in? |
| Used, fully working, in good condition. You will find the warranty period in the product features table. |
If in doubt, email contact@auto24parts.com.
