Rev. counter B-fig. 33 - 34 shows engine rpm.

IMPORTANT
The electronic system progressively blocks fuel flow to prevent engine from overrevving. This will lead to a progressive loss of engine power. When the engine is idling, the rev counter may indicate a gradual or sudden highering of the speed.
This is normal as it takes place during normal operation, for example when activating the climate control system or the fan. In particular a slow change in the speed preserves the battery charge.
See also:
Buzzer volume (Buzzer Vol)
The volume of the buzzer accompanying any failure/warning indication can be adjusted
according to 8 levels. The buzzer can be adjusted and, in certain cases, it cannot
be excluded. To adjust the v ...
ESC Activation/Malfunction Indicator Light AndESC OFF Indicator Light
The ESC Activation/Malfunction Indicator Light in the instrument cluster will
come on when the ignition switch is turned to the MAR (ACC/ON/RUN) position for
four seconds. If the ESC Activation/ ...
Generic failure indication
(amber)
The warning light turns on in the following circumstances.
Engine oil pressure sensor failure
The warning light comes on when the engine oil pressure sensor is faulty.
Contact Fiat Deale ...


