Instrument Cluster / Carrier: Description and Operation

9025 Instrument Cluster

The instrument layout in the 911 Carrera/S (997) was redesigned along with the interior. All of the instruments are now illuminated with white light. The five individual instruments are spaced further apart. This enlarges the display area and improves readability. The dials in the 911 Carrera S are aluminium colored while the dials in the 911 Carrera model are finished in black. There are permanent indicators for total mileage, trip mileage, time, exterior temperature, centered underneath the tachometer and speedometer.

The voltmeter has been replaced by the oil temperature indicator in the left-hand round instrument. The warning lights, which were previously located underneath the round instruments, have been incorporated into the dials so that they are more directly in the driver's field of vision. The dot matrix display is still integrated in the center round instrument underneath the tachometer and now displays additional functions such as the tire pressure monitoring menu or the stopwatch from the optional Sport Chrono Plus package.







When the ignition is switched on, the warning lights light up for a light check.

The instrument cluster employs the following output elements to display information:

NOTE: Emitted warnings are stored in the appropriate control unit memory.

Analog Instruments
- Speedometer
- Tachometer
- Coolant temperature, fuel level
- Engine oil pressure
- Oil temperature

Digital Indicators
- Selector lever position and gear indicator
- Trip counter and total mileage indicator
- Time, outside temperature
- Speed
- Range, average fuel consumption, average speed, boost pressure
- Oil level
- Menu displays for radio, telephone, navigation, vehicle check
- Alarm indications

Inputs and Input Data

The instrument cluster evaluates the following input data:
- Clock adjusting knob, dimming adjusting knob
- Oil level, fuel level sensor
- Parking aid sound, brake lining, clutch switch, selector lever position, washer fluid level, central locking
- Wake-up line

The following input data are received from the CAN bus:







Outputs and Output Data

The instrument cluster has the following PWM output:
- Dimming Light Emitting Diodes

The following data are output on the CAN bus:







Maintenance Computer

The 911 Carrera/S (997) incorporates a maintenance computer which indicates the due time for servicing on the on-board computer of the instrument cluster on a time and mileage basis.