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 Skoda Octavia 2.0 AQY Bosch 06A906018FH 0261206266
Vendors's code: 0261206266
Product code: 06A906018FH
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
Engine Control Unit Skoda Octavia 2.0 AQY Bosch 06A906018FH 0261206266
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€30.00
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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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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 the 06A906018FH ECU will fit an Octavia 2.0 AQY?
Compare the VW number and the Bosch number 0 261 206 266 with the label on your unit. This used, fully working unit comes from an Octavia with the 2.0 AQY engine.
Engine Control Unit Skoda Octavia 2.0 AQY Bosch 06A906018FH 0261206266
A petrol Octavia 2.0 with engine code AQY – that is the car this Bosch 06A906018FH ECU comes from. Its Bosch number is 0261206266. The ECU manages injection and ignition, and if it fails, the engine may not start at all.
ECU markings
- 06A906018FH – VW/Skoda part number
- 0261206266 – Bosch number (0 261 206 266)
- AQY – engine code of the donor car
The base number 06A906018 is shared by several Octavia ECUs – this one has the suffix FH, i.e. a different software or hardware version from, for example, DJ on the 1.8 20V. That is why we match by the full number.
Symptoms of a faulty ECU
- the engine cranks but will not fire, and the fuel pump does not run,
- hunting idle or hesitation when pulling away,
- a stored internal ECU fault code,
- noticeably higher fuel consumption with no sensor fault.
Before you replace the ECU, check the fuses, the main relay and the engine earth connections.
Which variant should I order?
There are two variants to choose from. With the unlocked one, we prepare the unit for your car before dispatch – usually within 1–2 working days, using a method suited to the part number, software and immobiliser. Options include PIN / CAR PASS, Virgin, IMMO OFF, auto-programming or clone, but not always all of them, so please ask before you buy.
The locked unit keeps the data and immobiliser of the previous car. It is intended for garages that handle unlocking, programming and adaptation themselves. We explain the details on the engine control unit variants page.
Questions and answers
| Is the AQY engine code enough to find the right part? |
|---|
| It helps narrow down the choice, but the number 06A906018FH on the label is what decides. |
| Will the 06A906018FH ECU start the engine straight after fitting? |
| Not in the locked version – it has to be unlocked and matched to the immobiliser. With the unlocked version, it depends on the preparation method agreed before purchase. |
| How long does it take to prepare the unlocked version? |
| Usually 1–2 working days before dispatch. We confirm the method beforehand, as it depends on the part number, software and immobiliser. |
| What condition is this ECU in? |
| It is a used part, fully working and in good condition. You will find the warranty period in the product specifications table. |
Have a question about compatibility? Email contact@auto24parts.com and attach a photo of the label on your ECU.
