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 1.6 Siemens 06A906019BH 5WP4860
Vendors's code: 5WP4860
Product code: 5WP4860
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 1.6 Siemens 06A906019BH 5WP4860
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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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Does the 06A906019BH ECU fit your Octavia 1.6?
It fits if the label on your current unit shows the same Skoda/VW number, 06A906019BH, together with Siemens number 5WP4860. This is a used, fully working ECU for the petrol Octavia 1.6, available locked or unlocked.
Engine Control Unit Skoda Octavia 1.6 Siemens 06A906019BH 5WP4860
The petrol Octavia 1.6 uses an electronic engine control unit which, based on sensor readings, sets the fuel quantity, ignition timing and idle speed. This unit was made by Siemens – as confirmed by the number 5WP4860 from the Siemens VDO / Continental numbering system. In the Skoda catalogue, the unit carries the number 06A906019BH. The ECU is used, fully working and in good condition.
Numbers from the label
- 06A906019BH – VW/Skoda part number assigned by the car manufacturer
- 5WP4860 – Siemens number (Siemens VDO / Continental numbering)
When replacing it, compare the number 06A906019BH above all. The letters at the end (here "BH") indicate the software or hardware version – a unit with a different suffix may not work with the rest of the system, even though it looks identical.
When the ECU may be faulty
- the engine turns over on the starter but will not fire, even though the fuel pump and ignition are working,
- rough running or stalling at idle without any sensor fault codes,
- no communication with the unit when attempting diagnostics,
- the engine warning light on with internal ECU fault codes stored.
Rule out simpler causes first: inspect the fuses, earth points and the connector at the ECU.
Locked or unlocked – which to choose?
If your garage programs ECUs itself, the locked version is enough. In that case the unit holds the data and immobiliser of the car it came from, and the unlocking, programming and adaptation are done by the mechanic. We prepare the unlocked version in-house before dispatch – this usually takes 1–2 working days.
The available methods (PIN / CAR PASS, Virgin, IMMO OFF, auto-programming, clone) depend on the part number, software and immobiliser, so not every one will work with this ECU. Ask us before you buy. Description of the variants: engine control unit variants.
Questions and answers
| Can I fit an ECU with a different letter at the end of the number? |
|---|
| We do not recommend it. The suffix of the VW number identifies the unit version, so the safest choice is a unit with an identical number. |
| Are 5WP4860 and 06A906019BH two different ECUs? |
| No, it is one unit described by two numbers: 5WP4860 was assigned by Siemens and 06A906019BH by VW/Skoda. |
| How long does it take to prepare the unlocked version? |
| Usually 1–2 working days before dispatch. We confirm beforehand which unlocking method is possible. |
| What condition is this unit in? |
| Used, fully working, in good condition. You will find the warranty period in the product specifications table. |
Have a question about this ECU? Email contact@auto24parts.com and attach a photo of the label on your unit.
