The negative cable, which is normally connected to the negative pole of the battery, is fastened to the crankcase. From here, the cable branches off and splits up within the electrical system to carry the ground connection to the different elements in the system.

The image shows the ground connection on left side of the engine crankcase.
The battery charging circuit and power distribution
Electrical power for lighting and signalling devicesExhaust by-pass valve not working correctly
Fault codes
Dds: exvl diagnosis -> position error, potentiometer, short circuit to ground
or open circuit (s.C. Gnd or c.O.),
Potentiometer short circuited to vdc (potentiometer s.C vdc).
Dashboard: the error "exvl" (exhaust bypass valve) is shown on the service
display. The eobd warning ...
Recovery procedure in the event of hands free system fault
If the hands free system can no longer communicate with the other control
units over the can network (with the
dashboard or engine on), the following icon is shown on the tank dashboard:
The following image shows the icon appearing on the tank dashboard: this
indicates that the hands free sy ...
Tank filler plug
Note
To open or close the tank filler plug using the active
key, set the metal part in the middle position, as shown on
page 86.
Opening
Lift the cover (1, fig. 100) And insert the active or passive key
into the lock. Give the key a 1/4 turn clockwise to unlock.
Lift the plug (2, fig. 101) ...