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 Porsche Boxster 3.2 S 0261204790 99661860500
Vendors's code: 0261204790
Product code: 63C8-28053
Barcode:
Code 39:
ISBN:
€406.50
Price
€406.50
€500.00
Price
€500.00
In stock
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 Porsche Boxster 3.2 S 0261204790 99661860500
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€30.00
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(Poland)
from
€30.00
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(Poland)
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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Engine control unit for Porsche Boxster - what to check before buying?
This is a used engine control unit in working order for the Porsche Boxster - numbers 0 261 204 790 / 0261204790; 996.618.605.00 / 99661860500. Before buying, compare the numbers with the label on the module in your car.
Engine control unit for Porsche Boxster
In the Porsche Boxster 3.2 S, the engine control unit is responsible for controlling fuel injection and the fuel supply system. We are selling a used module in working order and in good condition.
Numbers to compare
- 0 261 204 790 / 0261204790 - manufacturer's number (Bosch)
- 996.618.605.00 / 99661860500 - part number (OEM / vehicle)
Application according to the listing
- Porsche Boxster - model
- 3.2 S - engine according to the listing
- Bosch - manufacturer
Locked or unlocked variant?
A locked control unit keeps the previous car's data and immobiliser coding, so it is intended for garages that will unlock, program and match it to the vehicle themselves. The unlocked variant means that we prepare the module for you before dispatch; this usually takes approx. 1-2 working days. The available methods, such as PIN / CAR PASS, Virgin, IMMO OFF, auto-programming or cloning, vary depending on the number, software and immobiliser. See our ECU preparation options and contact us before buying.
The role of the control unit in the engine
The control unit reads signals from the crankshaft position, temperature, pressure and airflow sensors, then calculates the fuel quantity and ignition timing. This allows the engine to run steadily in a range of conditions. The module stores fault codes which, once a diagnostic tool is connected, help to establish whether the sensors, the wiring or the control unit itself is to blame.
How to match this part
Compare number 0 261 204 790 in full with the number on your control unit. Different versions were fitted to the same models, so it is the number that decides the match, not the model alone. Fitting is best left to a garage with suitable diagnostic equipment, as the module often needs coding and adaptation after replacement.
Symptoms of a faulty control unit
- random faults appear after water ingress or exposure to moisture,
- the radiator fan switches on for no reason,
- charging failure or voltage errors,
- the car stalls when coming to a stop.
Before you buy a control unit, check the fuses, power supply, earth and sensors - a damaged wiring loom or crankshaft position sensor can also cause similar symptoms.
Questions and answers
| What condition is this part in? |
|---|
| This is a used part in working order and in good condition. Warranty details are given in the features of this listing. |
| Will a control unit from a different engine version work? |
| We would not assume so. Modules differ in software and range of functions, so compare the numbers and your engine version. |
Not sure? Write to contact@auto24parts.com and we will help you choose the right control unit for your car.
