Chrysler PT Cruiser Service & Repair Manual page 418

8J - 2 INSTRUMENT CLUSTER
INSTRUMENT CLUSTER (Continued)
INSTRUMENT CLUSTER - EXPORT
Fig. 1 INSTRUMENT CLUSTER - EXPORT
The instrument cluster (Fig. 1) is referred to as a
Electro-Mechanical Instrument
Some of the features it controls are the gauges
(except fuel), courtesy lamps, chime control, Daytime
Running Lamps (DRL) and cluster self diagnostics.
The cluster sends and receives messages via the Pro-
grammable Communication Interface (PCI) data bus
circuit (J1850). All instrument cluster indicators (Air-
bag, Seatbelt, etc.) are LED's and are not replace-
able, with the exception of the high beam indicator
which is a bulb. The gauges are not serviced individ-
ually, thereby requiring complete replacement of the
cluster if one indicator or gauge becomes defective.
OPERATION
The instrument cluster controls the courtesy
lamps. It receives and sends messages to other mod-
ules via the PCI (J1850) bus circuit. It controls all
the instrument illumination and the chime is also an
integral part of the cluster.
All gauges are the analog type. When the ignition
switch is moved to the OFF position, the cluster
drives each gauge to its lowest position. The individ-
ual gauges are not serviceable and require complete
replacement of the cluster if one or more gauges are
inoperable.
The gauges are the magnetic air-core type. When
the ignition switch is OFF, the gauge pointers should
rest at or below the lowest graduation. The instru-
ment cluster may be checked quickly by using the
cluster self-diagnostics (Refer to 8 - ELECTRICAL/
INSTRUMENT CLUSTER - STANDARD PROCE-
DURE). After bulb check, (with the key in the RUN
position and engine running) all MODULE warning
indicators (if so equipped: Airbag, ABS, MIL, Charg-
ing System, Trac Off, ETC - Export only) should be
extinguished. If any of these indicators stay ON, use
the DRB III scan tool to determine module faults.
Also refer to the proper Body Diagnostic Procedures
manual for cluster self-diagnostic results.
NOTE: If any of the gauge pointers are stuck on the
wrong side of the pointer stop, perform one of the
following:
ing Diagrams for fuse locations) and key on. The
gauge pointer will "sweep" the gauges and return
all pointers to the correct side of the stop. Key OFF,
reinsert the M1 fuse. The cluster will "sweep" the
gauges one additional time. The cluster will
"sweep" the gauges anytime there was a change in
the state of the M1 fuse.
(Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER -
STANDARD PROCEDURE). This will "sweep" all the
pointers to the correct side of the pointer stop.
to total mileage. Holding the button when the display
Cluster (EMIC).
is in the trip mode will reset the trip mileage. This
button is also used to put the cluster in self-diagnostic
mode (Refer to 8 - ELECTRICAL/INSTRUMENT
CLUSTER - STANDARD PROCEDURE). Some of the
indicators will come on briefly for a bulb check when
the ignition is turned from OFF to ON. The LED's are
non serviceable and if one or more warning indictor
LED's are out, the entire cluster must be replaced.
communication with all other modules on the PCI
bus, the cluster will display "nobuS" in the VF dis-
play. The VF display also displays "Door", "Cruise",
"Trac", and odometer trip or total.
cuit, the message "FUSE" will alternate with the
odometer/trip odometer. The lack of voltage can be
due to the M1 Fused B(+) (IOD) fuse being open, or a
circuit problem.
operation, while gauges use a sending unit or sensor.
the vehicle that it is installed in so swapping clusters
from vehicle to vehicle is not recommended.
INSTRUMENT CLUSTER - EXPORT
ter indicator lamps will come on for a brief bulb
check. The seat belt indicator lamp will remain ON
until the (Driver) seat belt is fastened. The chime
will sound for 6 seconds if the seat belt is unbuckled
when the ignition is first turned ON. The export
• Pull the M1 fuse in the fuseblock (refer to Wir-
• Perform the instrument self-diagnostic check
One button is used to switch the display from trip
In the event that the instrument cluster looses
If the cluster does not detect voltage on the M1 cir-
Indicator lamps use ON/OFF switch functions for
The instrument cluster will learn some features of
The features that are learned are:
• ABS
• Traction Control
• SKIM
• RKE
• Air Bags
• Cruise Control
• Lowest/Highest Fuel Level
When the ignition key is ON, the instrument clus-
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