This is a pretty rare found, and I actually have a few more of these which cover all the Vauxhall Corsa C models with the various engines Z10XE, Z14XE, Z18XE, and the diesel corsa Y17DTL in a great big PDF file that I was given from a Vauxhall dealer. Problem is they are not in English, they are in German! I have translated this one for the Corsa 1.2 1199cc Z12XE Wiring Diagram Schematic into English as I needed it to do some fault finding and diagnostics on a Vauxhall Corsa, but the same would apply to an Opel Corsa too I would have thought.
It may even be the same as a Holden Corsa too as those beer drinking, bbq munching, thong flaunting Aussie’s got.I hope you find this wiring diagram helpful for sorting out your misfiring Corsa C or getting the engine warning light to stop haunting you on your Vauxhall. All you need to do to get the Wiring Schematic Diagram is click on it, the wiring legend is separate which you’ll need, so make sure you take a copy of both and print them out or whatever. I can’t really share out the PDF file as it’s too big to upload, and it would be no use to you anyway as the PDF is in German!