Cayenne Turbo (9PA) V8-4.8L Turbo (2008)
The MOST components check 'MOST system check' is to be carried out when the display indicates 'unavailable MOST control modules'. If no fault code
is stored, the '* 'symbol indicates a 'differing required and actual installed components list' in the Control modules menu in front of the 'PCM2' system
and in the 'PCM2 MMI function selection menu' in front of the option 'MOST required installed components list'. A comparison of these two lists can
determine missing components.
MOST System check (ignition on.)
This check can only be carried out when the engine is not running.
Ring break diagnosis (ignition on.)
This check can only be carried out when the engine is not running.
Optical performance check
Data transmission check