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 Crafter Bosch 03L906012GR 0281032385
Vendors's code: 0281032385
Product code: 0281032385
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
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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
Shipping cost for the selected product
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Does the 03L906012GR ECU fit your Volkswagen Crafter?
It fits if the label on your current module shows the same VW number 03L906012GR and Bosch number 0281032385 (written as 0 281 032 385). This is a used, working diesel engine ECU, available locked or unlocked.
Engine Control Unit Volkswagen Crafter Bosch 03L906012GR 0281032385
The 03L906012GR ECU is the diesel engine computer from a Volkswagen Crafter, made by Bosch. It reads signals from the sensors and uses them to control fuel injection and the engine ancillaries. Bosch number 0281032385 starts with 0 281, the prefix Bosch uses for diesel ECUs.
Numbers on the label
- 03L906012GR – Volkswagen part number, the main number to compare
- 0281032385 – Bosch number, written on the sticker as 0 281 032 385
Compare both numbers with the sticker on your module. The final letters of the VW number (here GR) indicate the software or hardware version, so an ECU with a different suffix is not necessarily a replacement.
When the engine control unit tends to fail
- no start despite a working starter motor and fuel supply,
- a message on the diagnostic tool saying there is no connection with the module,
- sudden switch to limp mode even though the sensors are working,
- a fault after water damage, a voltage surge or a failed update.
First check the module's fuses, power supply and earths – a loose contact in the connector produces similar symptoms.
Locked or unlocked – which option to choose
The locked version reaches you with the data and immobiliser of the previous car. It is chosen by workshops that unlock, program and adapt the module themselves. The unlocked version is prepared before dispatch, usually within 1–2 working days.
The preparation method (PIN / CAR PASS, Virgin, IMMO OFF, auto programming, clone) depends on the number, software and immobiliser, so not every one is possible on every unit. Ask about it before buying. Description of the options: ECU preparation options.
Questions and answers
| Are 0281032385 and 03L906012GR two different ECUs? |
|---|
| No. They are one module: 03L906012GR is the Volkswagen number, and 0281032385 the Bosch number. |
| Will the Crafter start straight away after fitting the locked version? |
| No. This ECU has to be unlocked, programmed and adapted to the vehicle's immobiliser. |
| 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. |
Unsure about the numbers? Send a photo of the label to contact@auto24parts.com – we will compare them with this ECU.