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 Felicia 1.6 AEE Siemens 047906030M 5WP432702
Vendors's code: 5WP432702
Product code: 047906030M
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 Felicia 1.6 AEE Siemens 047906030M 5WP432702
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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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What do the numbers 5WP432702 and 5WP435301 on ECU 047906030M mean?
They are two Siemens numbers assigned to this unit; the VW number is 047906030M. The ECU comes from a Skoda Felicia 1.6 with the AEE engine, and is used and fully working.
Engine Control Unit Skoda Felicia 1.6 AEE Siemens 047906030M 5WP432702
Siemens marked this ECU with two numbers – 5WP432702 and 5WP435301 – and in the VW/Skoda catalogue it is numbered 047906030M. The unit comes from a Skoda Felicia 1.6 with the AEE petrol engine. It manages injection and ignition and keeps the idle speed stable.
Markings on the casing
- 047906030M – VW/Skoda part number
- 5WP432702 – Siemens number (on the label 5WP4327 02)
- 5WP435301 – second Siemens number
The Felicia 1.6 AEE was also fitted with Magneti Marelli ECUs with different numbering, so do not choose a unit by engine alone. The letter M in the VW number indicates the software or hardware version.
Signs of a unit failure
- the engine will not start or cuts out after a few seconds,
- the engine warning light stays on and the diagnostic tool cannot connect to the unit,
- uneven idle even though the plugs and coils are working,
- injector or ignition faults that return after clearing.
It is worth ruling out a damaged wiring loom, a corroded connector and a weak battery first.
Unlocking and the immobiliser
The immobiliser is the main reason why a used ECU will not start the engine straight away. In the locked version, the unit retains the previous car's data and immobiliser – it suits a garage that will do the unlocking, programming and adaptation itself. In the unlocked version, we carry out the preparation before dispatch, usually within 1–2 working days.
The method (PIN / CAR PASS, Virgin, IMMO OFF, auto programming or cloning) depends on the part number, software and immobiliser – not every one is available for every unit, so please ask about it before you buy. More: ECU preparation options.
Questions and answers
| Which Siemens number should match my unit? |
|---|
| It is enough to compare the VW number 047906030M and one of the 5WP numbers. If there is a discrepancy, email us. |
| 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. |
| Will ECU 047906030M start the engine straight after fitting? |
| The locked version will not – it has to be unlocked and matched to the immobiliser. With the unlocked version, it depends on the preparation method agreed before purchase. |
| Is the unit new? |
| No – it is a fully working used ECU in good condition. You will find the warranty period in the product specification table. |
If in doubt, email contact@auto24parts.com; we will tell you whether this unit fits your car.
