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 Volkswagen Jetta Bosch 03C906016BT 0261S07201
Vendors's code: 0261S07201
Product code: 0261S07201
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
Administratorem danych osobowych jest Auto24parts. Przetwarzamy je w celu przesłania odpowiedzi na zapytanie. Więcej informacji dotyczących przetwarzania danych osobowych znajduje się w polityce prywatności.
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.
Looking for a 03C906016BT ECU for a Golf or Jetta?
This used, working Bosch engine control unit has VW number 03C906016BT and Bosch number 0261S07201 (on the label 0 261 S07 201). It comes from a Volkswagen Golf or Jetta with a petrol engine.
Engine Control Unit Volkswagen Golf Volkswagen Jetta Bosch 03C906016BT 0261S07201
At Bosch, number 0261S07201 with the 0 261 prefix denotes a petrol engine ECU – this unit has VW number 03C906016BT and comes from a Volkswagen Golf or Volkswagen Jetta. The unit calculates the fuel quantity and ignition timing, controls the throttle and monitors engine operation. The unit on offer is used, working and in good condition.
Numbers to compare
- 03C906016BT – VW part number
- 0261S07201 – Bosch number, printed on the label as 0 261 S07 201
The letters BT at the end of the VW number denote the software or hardware version. A 03C906016 ECU with a different suffix will not necessarily work with your engine, so compare the full number.
Failure symptoms
- the engine will not start despite a working power supply,
- limp mode and no response to the accelerator pedal,
- injector or coil circuit faults with no damage to these parts,
- no communication with the ECU.
Before ordering a replacement, check the power supply, earths and unit connector, and read the fault codes.
Choosing the ECU version
The 03C906016BT ECU is available locked – with the data and immobiliser of the previous car, for workshops that will unlock, program and match it themselves – or unlocked, prepared by us before dispatch (usually 1–2 working days).
Not every unlocking method – PIN / CAR PASS, Virgin, IMMO OFF, auto programming or clone – is possible for every ECU. It depends on the part number, software and immobiliser, so please ask before you buy. Description of the options: ECU preparation options.
Questions and answers
| Does it fit a Jetta? |
|---|
| The data for this ECU lists the Volkswagen Golf and Volkswagen Jetta. What decides is whether the numbers 03C906016BT and 0261S07201 match your unit. |
| What details should I send before ordering? |
| All the numbers from the label or a photo of it – we will check compatibility and the possible preparation methods. |
| What condition is the ECU in? |
| Used, working, in good condition. You will find the warranty period in the product specification table. |
Questions? Email us at contact@auto24parts.com.