55568735 LJ – Siemens ECU in Virgin version
Siemens module for the Opel Astra H / Zafira B with a petrol engine, reset (Virgin) and with a clean Car Pass (PIN) code. It just needs programming in the car.
Numbers to compare
These are the markings that matter when matching the ECU:
- Opel / GM number: 55568735
- Letter code: LJ (55568735LJ)
- ECU type: Siemens 5WK9463
Possible symptoms of a faulty ECU include a no-start, no communication in diagnostics, or a fault after water ingress or a short circuit. They can also have other causes – run a diagnosis before buying.
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.
How to check compatibility
The most reliable way is to compare labels. Your ECU should show the number 55568735 LJ (55568735LJ). This unit is intended for the Opel Astra H / Zafira B with a petrol engine, but the number decides the match, not the model or year.
Similar Siemens ECUs
More models: the Opel engine ECUs category. All units from this manufacturer are on the Siemens page.
FAQ – ECU 55568735 LJ (Siemens)
What do I program ECU 55568735 LJ with?
With Tech-2 or OP-COM, after fitting it in the car. The Car Pass (PIN) code is clean.
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Can you set the Car Pass (PIN) code?
Yes, on request we set the Car Pass (PIN) code and write it on the ECU.
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What does the Virgin version mean?
The ECU is reset and has a clean Car Pass (PIN) code, so it can be programmed in the car.
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Does ECU 55568735 LJ fit my Opel Astra H / Zafira B?
Compare the label of your ECU with the number 55568735 LJ (55568735LJ). If it matches, the ECU fits.
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