Thanks to you all for replies, and apologies for this delayed reply - I've been away for a bit. John - thanks for the advice re. Techstream. This sounds stupid but I actually always thought that was a Vauxhall-specific app; I'm sure I've seen it discussed before on the Vectra forum I used to belong to. Anyway - thanks for clearing that one up 🙂 Herbs thanks for the link - I've ordered the cable, and am waiting for my conscience to get back to me on the matter of the software 🙂 Linas - thanks for such a detailed reply - much appreciated. I don't recall the exact menu option in Torque Lite, but it was something like "List Error Codes", and it came back saying "None Found"... odd, but understandable given that they are clearly hidden in a Toyota-specific part of the information structure... maybe your full copy of "Torque" goes deeper and isn't just ad-free as the only difference. Good point also re simply deleting codes and expecting that to "fix" anything - yes, of course, if there's a fault, the code will reappear; I'll be mindful of that 🙂
ANYWAY - meanwhile, I took the car down to my friendly local garage and had it hooked up and scanned - just because he did it for free - and he reckons he picked up an actual fault with the ABS. Didn't see that one coming - I've had a lonngggg history of smoking / EGR / DPF / 5th Injector problems, so that "Check VSC" and "ABS" light is more often on than off.... but it might be the case that, on this occasion, it's actually telling the truth !. I'll get my hands on some decent software as you've all advised, and have another look myself, before doing anything else... it seems the ABS Sensor is integral to the actual wheel bearing assembly, or so I'm told ? Had that wheel bearing replaced 18 months ago, so don't want to shell out for another, just yet, unless I have to. Had a quick look at the wiring / connector, and all seems OK... Bah, maybe there's some expense coming my way ... 😞