Chrysler 2005 Crossfire SRT6 Service Manual page 1024

8J - 70 INSTRUMENT CLUSTER - SERVICE INFORMATION
FLEXIBLE SERVICE SYSTEM (FSS) INDICATOR
The Flexible Service System (FSS) indicator (2) draws
the attention of the driver to a particular service that is
due. The FSS indicator (2) is a mileage/time-activated
engine service system for recommended oil change
intervals. In addition to time (in days) and distance cri-
teria, other factors, such as extreme speeds or cold
starts that are in combination with short distances, are
taken into account for adjusting the programmed ser-
vice intervals. If the oil level drops below a warning
threshold, the remaining distance (1) or the remaining
time (1) and the tool symbol (2) are displayed. The
FSS indicator (2) has its own microprocessor in the
Instrument Cluster. The FSS indicator (2) obtains time
information from the digital clock integrated into the
Instrument Cluster. The other data required is obtained
via the CAN data bus from the Controller Antilock
Brake (CAB) and the Powertrain Control Module
(PCM).
The following are CAN Bus data inputs required
for FSS indicator operation:
• 4 Wheel Speed Sensors (WSS) signals for calculating vehicle speed and distance from the CAB
• Coolant temperature from the PCM
• Engine speed from the PCM
• Load torque from the PCM
OPERATION
OPERATION
INSTRUMENT CLUSTER GAUGES
The Instrument Cluster is made up of four analog gauges.
Speedometer
The speedometer has a 0–160 Miles Per Hour (MPH)
primary scale with Kilometers Per Hour (km/h) on the
secondary scale. The speedometer receives wheel
speed data from the CAB via the CAN data bus and
can be verified by comparing the speed signal viewed
by the DRB III from the wheel speed sensors and the
output seen on the Instrument Cluster. The Electronic
Stability Program (ESP)
between the left and right turn signals in the speed-
ometer face illuminates when it is activated by the
Controller Antilock Brake (CAB), indicating the need to
adjust driving behavior to the prevailing road condi-
tions. Also located in the speedometers face are the
trip odometer and the Flexible Service System (FSS)
indicator/odometer (1). To the right and left of the
speedometer face, mounted in the Instrument Cluster,
are the control dials (2-3) for the FSS and the digital
clock.
indicator lamp located
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