Solutions
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Vauxhall Owners Club's post in Reliable OBD was marked as the answerThanks to your review of the scanner - they all seem to have a lot more functions now than just reading codes. I use an iCarSoft scanner and you can recode, reset, functions (such as force DPF), regular software updates and so much more for 10 makes of vehicle and around £130 to buy.
I believe the TopDon is also of the same spec and great value for money