Principle
The Check Control system monitors functions in
the vehicle and notifies you of faults in the monitored
systems.
General information
A Check Control message is displayed as a combination
of indicator or warning lights and text
messages in the instrument cluster and, if applicable,
in the He
If a fault is diagnosed in the system, such as e.g. failure of the
high-pressure sensor, the fuel-supply control
valve is de-energized; the fuel then flows via a so-called bypass into the rail.
In the event of HPI limp-home mode, turbocharging is deactivated by an opening
of the wastegate valves.