Instrument Cluster Description; Operation; Diagnosis And Testing - Instrument Cluster; Removal - Chrysler 300M Service Manual

8J - 2 INSTRUMENT CLUSTER
INSTRUMENT CLUSTER (Continued)

OPERATION

The gauges are the magnetic air-core type. When
the ignition switch is OFF, the gauge pointers should
rest at or below the low graduation.
DIAGNOSIS AND TESTING - INSTRUMENT
CLUSTER
As a quick diagnosis, the cluster will perform a
functional check of the odometer display, transmis-
sion range display and warning indicators after the
ignition is switched to RUN/START. If the cluster is
not receiving any PCI bus messages, the cluster will
appear non-functional and "no bus" will appear in
the odometer display.
A self-test of the cluster can also be initiated by
pressing and holding the odometer reset button and
switching the ignition from lock to unlock. The clus-
ter will then step through several displays for func-
tional verification.
If the cluster is not functioning properly, refer to
the proper Body Diagnostic Procedures Manual.
If the cluster is not receiving PCI bus messages,
refer to the pre-diagnostic test described in Body
Diagnostic Procedures Manual.
In order to diagnose the instrument cluster func-
tions, a DRB lll scan tool and the proper Body Diag-
nostic Procedures Manual are required.
If the diagnostic procedure determines that a
replacement of an instrument cluster component is
required, refer to Cluster and Bezel Removal and
Installation in this section.

REMOVAL

To service any instrument cluster component, the
instrument cluster must be removed from the instru-
ment panel. Use the following procedure:
(1) Open hood and disconnect the negative battery
cable remote terminal from the remote battery post.
(2) Remove the instrument panel left end cap.
(3) Remove steering column shroud cover.
(4) Tilt the steering column down into the lowest
position.
(5) Remove one screw (Limited/300M) to cluster
bezel
(6) Remove the items to expose bezel mounting
screws. Items vary depending on model.
(7) Remove two screws over upper cluster bezel in
instrument panel brow area and all remaining
attaching screws (four on Intrepid, Limited, and
300M, and five on Concorde).
(8) Using a trim stick (special tool #C-4755), gently
pry out on the instrument panel cluster bezel, discon-
nect headlamp switch connector, and remove.
(9) Remove the instrument cluster screws.
NOTE: Tilt steering wheel down to gain access for
instrument cluster removal.
(10) Remove the instrument cluster from panel.
The instrument panel wiring harness connectors are
self-aligning, mounted directly to the rear panel. A
force of approximately 9 kilograms (30 lbs.) will be
required to disengage the cluster from the connectors
and upper clips.

INSTALLATION

NOTE: Tilt steering wheel down to gain access for
instrument cluster installation.
(1) Install the instrument cluster into instrument
panel. The instrument panel wiring harness connec-
tors are self-aligning, mounted directly to the rear
panel. A force of approximately 9 kilograms (30 lbs.)
will be required to engage the cluster to the connec-
tors and upper clips.
(2) Install the instrument cluster screws.
(3) Connect headlamp switch connector. Place the
cluster bezel into position and snap it into place
firmly.
(4) Install the two screws over upper cluster bezel
in instrument panel brow area and all remaining
attaching screws (four on Intrepid, Limited, and
300M, and five on Concorde).
(5) Install the items covering the bezel mounting
screws.
(6) Install the one screw (Limited/300M) to cluster
bezel.
(7) Tilt the steering column down into the lowest
position.
(8) Install the steering column shroud cover.
(9) Install the instrument panel left end cap.
(10) Connect the negative battery cable remote ter-
minal to the remote battery post.
LH