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 Opel Vectra C 3.2 V6 55557538 0261208743 1039S05594
Vendors's code: 55557538
Product code: 49F4-72469
Barcode:
Code 39:
ISBN:
€365.85
Price
€365.85
€450.00
Price
€450.00
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 Opel Vectra C 3.2 V6 55557538 0261208743 1039S05594
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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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What does number 55557538 on an engine control unit mean?
Used engine control unit with number 55557538 for Opel Vectra C. Confirm compatibility with the number from the original control unit.
Used engine control unit for Opel Vectra C with number 55557538
According to the listing, this is a control unit for Opel Vectra C with a 3.2 V6 engine. Control unit 55557538 is a used original module, and its numbers help tell it apart from similar versions. The listing states that this control unit is for: Opel Vectra C. Engine given in the listing: 3.2 V6. The listing also gives the markings B05026ZU. They help tell the control unit versions apart, but the full part number is what decides compatibility.
Numbers to compare
The numbers from the listing, as written on the labels and as a single string:
- 55557538, car manufacturer's original number,
- 0261208743, control unit manufacturer's number,
- 1039S05594, control unit manufacturer's number.
Check the numbers on your control unit and compare them with those above. If any of them differs, contact us before ordering.
Faults that call for checking the control unit
- the engine idles unevenly or stalls for no obvious reason,
- the car loses power or goes into limp mode,
- fuel consumption rises for no obvious reason,
- the engine no longer runs properly after the battery has gone flat.
Before buying a control unit, read the fault codes with a diagnostic tester and check the power supply, the earth connections and the connector. Damaged sensors, wiring or fuses can cause similar symptoms, and in that case replacing the control unit will not help.
Questions and answers
| What is the difference between numbers 55557538 and 0261208743? |
|---|
| The control unit carries several numbers, because it is identified both by the car brand and by the electronics manufacturer. When matching the part, compare all the numbers. |
| What do the markings B05026ZU in the listing mean? |
| They are markings of the version or type of the control unit. They help tell the units apart, but the full part number is what decides compatibility. |
| Can I send a photo for a compatibility check? |
| Yes. Contact us and send a photo of the label on the original control unit, and we will help you check whether this part will fit. |
| What condition is this control unit in? |
| It is a used original part, inspected before sale. You will find the warranty period in the product features table. |
Not sure about the match? Send us a photo of the label on your control unit and we will check whether this part will fit.
