Chrysler 2005 Crossfire SRT6 Service Manual page 1036

8J - 82 INSTRUMENT CLUSTER - SERVICE INFORMATION
OUTSIDE AMBIENT AIR TEMPERATURE
The following is required to display the outside ambi-
ent air temperature:
• Outside air temperature
• Wheel speed signal
• Engine run time
• Engine coolant temperature
The outside ambient air temperature is determined by
the outside ambient air temperature sensor. The tem-
perature sensor is installed at the front left of the vehi-
cle under the bumper fascia and is connected to the
Instrument Cluster. The wheel speed signal, engine
run time, and engine coolant temperature are deter-
mined internally by the Instrument Cluster. Since the
outside ambient air temperature display depends on
the wheel speed, engine run time, and engine coolant
temperature, the temperatures are not updated when
the vehicle is stationary or moving slowly.
The following is the vehicle criteria necessary for
determining outside air temperature:
• When the ignition is in the ON position and the engine coolant temperature < 60°C (140°F), the current air
temperature is always stored and displayed.
• When the ignition is in the OFF position and the engine coolant temperature < 60°C (140°F), the air temper-
ature last measured is stored and displayed.
• When the ignition is in the ON position and the engine coolant temperature < 60°C (140°F), the stored air
temperature is displayed.
• At vehicle speeds of 19–60 km/h (12-37 MPH), outside air temperatures are displayed after a delay of approx-
imately 5 minutes.
• At vehicle speeds over 60 km/h (37 MPH), outside air temperatures are displayed after a delay of approxi-
mately 2 minutes.
FLEXIBLE SERVICE SYSTEM (FSS) MAINTENANCE INDICATOR
The FSS maintenance indicator informs the driver
when maintenance is due. The FSS maintenance indi-
cator operates based on distance traveled and time
between service criteria. After exceeding a total dis-
tance or total time set at the factory, the FSS mainte-
nance indicator activates: The tool symbol (2) comes
on and the FSS maintenance information (1) is dis-
played instead of the total mileage. The FSS mainte-
nance indicator obtains its time information from the
digital clock integrated into the Instrument Cluster. The
odometer signal calculated in the Instrument Cluster is
used for the mileage information. For this purpose, the
Instrument Cluster receives four wheel speed signals
from the CAB via the CAN data bus. (Speedometer,
Odometer and the FSS maintenance indicator are
therefore, closely interrelated).
The remaining mileage is compared with the remain-
ing time at key-on. When the time criterion has
reached the priority level, the display (1) switches to
the remaining time. The remaining mileage display (1)
will be displayed automatically with the ignition switch in the "RUN" position after 5 seconds or while driving after
reaching the warning threshold. The tool symbol (2) and the current remaining mileage (1) appear for 10 seconds,
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