ECU 55355631 XX – description
We offer a Siemens ECU intended for the Opel Vectra C with a petrol engine. The unit has been reset to Virgin state: the Car Pass (PIN) code is clean and the ECU is waiting to be programmed in the car.
Vehicle compatibility
The ECU fits the Opel Vectra C with a petrol engine. Compatibility is decided by the label number (55355631 XX (55355631XX)), not just by the model and year.
Before fitting
Virgin means a clean Car Pass (PIN) code, so after fitting the ECU is programmed with Tech-2 or OP-COM.
- setting the Car Pass (PIN) code and writing it on the ECU – on request,
- cloning the data from your ECU (files or the whole unit) – included in the price, we return both,
- warranty – 6 months.
Label details
- Opel / GM number: 55355631
- Letter code: XX (55355631XX)
- ECU type: Siemens 5WK9407
Compare them with the label on your own ECU.
Diagnose first
A no-start, no communication in diagnostics or a fault after water ingress or a short circuit can point to a faulty ECU, but they do not have to. Run a diagnosis before buying.
See other Siemens part numbers
Looking for a number other than 55355631 XX? Browse the Opel engine ECUs category or the Siemens manufacturer page.
Common questions about ECU 55355631 XX
How do I program ECU 55355631 XX?
The ECU is Virgin with a clean Car Pass (PIN) code – after fitting it is programmed with Tech-2 or OP-COM. You can also get the PIN code from us written on the ECU, or order cloning included in the price.
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How do I check that 55355631 XX fits my Opel Vectra C?
Look at the label on your ECU – it must show the number 55355631 XX (55355631XX). The model and year alone are not enough.
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Is cloning charged?
No, cloning is included in the price. Send the files from your ECU or the whole unit – we transfer the data and return both.
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Does ECU 55355631 XX come with a warranty?
Yes – 6 months.
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