Chrysler PT Cruiser. Manual - part 498
STANDARD PROCEDURE - SELF-DIAGNOSTICS
To put the instrument cluster in Self-Diagnostic
Mode, press the trip reset button down and then turn
the ignition to the ON position simultaneously, then
release the button. The gauges will increment to
selected stops and all indicators will light with the
exception of liftgate ajar and fog lamp indicators. The
oil lamp will come on when the ignition is turned ON
and the engine is OFF. Refer to the proper Body
Diagnostic Procedures manual if one or more indica-
tors don’t light, or a gauge does not appear to be
functioning correctly.
NOTE: If a vehicle/instrument cluster is received
with the instrument cluster gauge pointers on the
wrong side of the pointer stops, momentarily
remove the M1 fuse, located in the Power Distribu-
tion Center (PDC) in the engine compartment, then
replace. The gauge pointers should then step
through the scales and then sweep back to the
proper side of the pointer stops.
REMOVAL
CAUTION: DO NOT turn cluster upside down for
longer than 30 minutes (preferably NEVER). This
can result in dampening fluid within the gauge
pointer assembly to leak causing permanent dam-
age to the instrument cluster gauges.
DO NOT expose the instrument cluster to direct
sunlight for extended periods of time. Any overex-
posure to direct sunlight permanently warps the
internal mask of the instrument cluster, causing the
pointers to stick. It is acceptable to store the instru-
ment cluster on the floor of the vehicle, gauges fac-
ing up, out of direct sunlight.
DO NOT do an electrical “HOT SWAP” when replac-
ing or testing clusters. Ensure that the ignition is
OFF with the M1 fuse removed, or the battery neg-
ative cable is disconnected. Partial mating of the
cluster
connector
circuits
can
damage
and/or
destroy the cluster microprocessor if power is
available.
DO NOT swap clusters between vehicles. The
instrument cluster has learned information stored in
its microprocessor for Airbags, Anti-Lock Brakes,
Traction Control, Cruise, and Smart Key Immobi-
lizer. Swapping clusters between cars, may result in
the improper illumination of cluster indicators asso-
ciated with the above features.
(1) Open hood.
(2) Disconnect and isolate the battery negative
cable.
(3) Remove the instrument cluster bezel. Refer to
Body, Instrument Panel, Instrument Cluster Bezel,
Removal.
(4) Remove four screws to the instrument cluster
(Fig. 2) and pull straight back to release off of self-
docking connectors (Fig. 3).
Fig. 2 INSTRUMENT CLUSTER
Fig. 3 INSTRUMENT CLUSTER REMOVE/INSTALL
8J - 4
INSTRUMENT CLUSTER
PT
INSTRUMENT CLUSTER (Continued)