A quick note to thank you all.
Tony, that manual is for the GDI Gauges! So we know that the Gauges are from the VDO CANCockpit Series, which unfortunately are no longer available and no direct replacement, there does seem to be an upgrade path to the SingleViu range via a conversion Harness.
I ran the diagnostic routine which worked as described but didn't bring up any errors.
Richard, thanks for pulling this info together, more things for me to check.
Regards
