If the 'Book' icon is displayed on HEVAC screen does it automatically disappear when the problem is fixed or does it have to be deleted? If so how does one delete the icon?
How are errors read?
There are as many opinions as there are P38 owners!
Have a read though the Diagnostics section to see the pros and cons of each one. http://www.rangerovers.net/forum/12-diagnostic-equipment/
Personally I've had a Hawkeye, sold it and bought a Nano Evo, which I'm happy with, just avoid generic stuff cos apart from reading some codes it never seems to do the more arcane things that P38 specialised tools do.