2002 DODGE RAM odometer

headlamp switch. Rotate the headlamp switch panel
lamps dimmer thumbwheel upward to just before the
interior lamps detent. Check for battery voltage at
the fused panel lamps dimmer switch signal circuit
cavity of the instrument panel wire harness connec-
tor (Connector C2) for the instrument cluster. If OK,
replace the faulty bulb and bulb holder units. If not
OK, repair the open fused panel lamps dimmer
switch signal circuit between the instrument cluster
and the JB as required.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the cluster bezel from the instrument
panel. (Refer to 23 - BODY/INSTRUMENT PANEL/
CLUSTER BEZEL - REMOVAL).
(3) Remove the four screws that secure the instru-
ment cluster to the instrument panel (Fig. 2).(4) If the vehicle is equipped with an automatic
transmission, place the automatic transmission gear
selector lever in the Park position.
(5) Pull the instrument cluster rearward far
enough to disengage the two self-docking instrument
panel wire harness connectors from the cluster con-
nector receptacles.
(6) If the vehicle is equipped with an automatic
transmission, pull the instrument cluster rearward
far enough to access and remove the two screws that
secure the gear selector indicator to the back of the
instrument cluster housing (Fig. 3).
(7) If the vehicle is equipped with an automatic
transmission, disengage the gear selector indicator
from the back of the instrument cluster housing.
(8) Remove the instrument cluster from the instru-
ment panel.
DISASSEMBLY
Some of the components for the instrument cluster
used in this vehicle are serviced individually. The
serviced components include: the automatic transmis-
sion gear selector indicator, the incandescent instru-
ment cluster indicator lamp and illumination lamp
bulbs (including the integral bulb holders), the clus-
ter lens and hood unit, and the cluster housing rear
cover. The remaining components are serviced only
as a part of the cluster housing unit, which includes:
the cluster housing, the electronic circuit board unit,
the cluster overlay, the gauges, and the odometer/trip
odometer reset switch button. Following are the pro-
cedures for disassembling the serviced components
from the instrument cluster unit.
Fig. 2 Instrument Cluster Remove/Install
1 - INSTRUMENT CLUSTER
2 - SCREW
3 - PRNDL CABLE
4 - SELF-DOCKING WIRE HARNESS CONNECTOR
Fig. 3 Gear Selector Indicator Remove/Install
1 - INSTRUMENT CLUSTER
2 - GEAR SELECTOR INDICATOR
3 - SCREW
8J - 10 INSTRUMENT CLUSTERBR/BE
INSTRUMENT CLUSTER (Continued)

(3) Remove the seven screws that secure the lens
and hood unit to the cluster housing (Fig. 6).
(4) Gently pull the lens and hood unit away from
the cluster housing.
CAUTION: Do not touch the face of the gauge over-
lay or the back of the cluster lens with your finger.
It will leave a permanent finger print.
CLUSTER HOUSING REAR COVER
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the instrument cluster from the instru-
ment panel. (Refer to 8 - ELECTRICAL/INSTRU-
MENT CLUSTER - REMOVAL).
(3) Remove the six screws that secure the rear
cover to the back of the cluster housing (Fig. 7).
(4) Remove the rear cover from the back of the
cluster housing.
CLUSTER HOUSING
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the instrument cluster from the instru-
ment panel. (Refer to 8 - ELECTRICAL/INSTRU-
MENT CLUSTER - REMOVAL).
(3) Remove the lens and hood unit from the cluster
housing. Refer to CLUSTER LENS AND HOOD .
(4) Remove the rear cover from the cluster hous-
ing. Refer to CLUSTER HOUSING REAR COVER .
ASSEMBLY
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
GEAR SELECTOR INDICATOR
(1) Position the gear selector indicator mechanism
and cable unit into the instrument panel cluster
opening.
(2) Route the cable through the instrument panel
and under the steering column to the PRNDL driver
lever on the left side of the steering column.
(3) Squeeze the sides of the plastic adjuster and
bracket unit and engage the tabs that secure it with
the sides of the steering column window.
(4) Engage the loop end of the gear selector indi-
cator cable onto the PRNDL driver lever on the left
side of the steering column (Fig. 4).
(5) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).
(6) Confirm proper operation of the gear selector
indicator. Calibrate the indicator, if required. (Refer
to 19 - STEERING/COLUMN - INSTALLATION).
(7) Reinstall the steering column opening cover
onto the instrument panel. (Refer to 23 - BODY/IN-Fig. 6 Instrument Cluster Components
1 - COVER
2 - HOUSING
3 - MASK AND GAUGES
4 - HOOD
5 - LENS
6 - CIRCUIT BOARD
7 - ODOMETER RESET BUTTON
Fig. 7 Cluster Housing Rear Cover Remove/Install
1 - REAR CLUSTER HOUSING COVER
8J - 12 INSTRUMENT CLUSTERBR/BE
INSTRUMENT CLUSTER (Continued)

STRUMENT PANEL/STEERING COLUMN OPEN-
ING COVER - INSTALLATION).
(8) Reconnect the battery negative cable.
CLUSTER BULB
This procedure applies to each of the incandescent
cluster illumination lamp or indicator lamp bulb and
bulb holder units. However, the illumination lamps
and the indicator lamps use different bulb and bulb
holder unit sizes. They must never be interchanged.
CAUTION: Be certain that any bulb and bulb holder
unit removed from the cluster electronic circuit
board is reinstalled in the correct position. Always
use the correct bulb size and type for replacement.
An incorrect bulb size or type may overheat and
cause damage to the instrument cluster, the elec-
tronic circuit board and/or the gauges.
(1) Insert the bulb and bulb holder unit straight
into the correct bulb mounting hole in the cluster
electronic circuit board (Fig. 5).
(2) With the bulb holder fully seated against the
cluster electronic circuit board, turn the bulb holder
clockwise about sixty degrees to lock it into place.
(3) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).
(4) Reconnect the battery negative cable.
CLUSTER LENS AND HOOD
CAUTION: Do not touch the face of the gauge over-
lay or the back of the cluster lens with your finger.
It will leave a permanent finger print.
(1) Align the cluster lens and hood unit with the
cluster housing. Be certain that the odometer/trip
odometer switch button is installed through the
clearance hole in the lens (Fig. 6).
(2) Install and tighten the seven screws that
secure the lens and hood unit to the cluster housing.
Tighten the screws to 2.2 N´m (20 in. lbs.).
(3) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).
(4) Reconnect the battery negative cable.
CLUSTER HOUSING REAR COVER
(1) Position the rear cover onto the back of the
cluster housing (Fig. 7).
(2) Install and tighten the six screws that secure
the rear cover to the back of the cluster housing.
Tighten the screws to 2.2 N´m (20 in. lbs.).
(3) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).(4) Reconnect the battery negative cable.
CLUSTER HOUSING
(1) Assemble the rear cover onto the cluster hous-
ing. Refer to CLUSTER HOUSING REAR COVER .
(2) Assemble the lens and hood unit onto the clus-
ter housing. Refer to CLUSTER LENS AND HOOD .
(3) Reinstall the instrument cluster onto the
instrument panel. (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - INSTALLATION).
(4) Reconnect the battery negative cable.
INSTALLATION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Position the instrument cluster to the instru-
ment panel.
(2) If the vehicle is equipped with an automatic
transmission, position the gear selector indicator onto
the back of the cluster housing (Fig. 3).
(3) If the vehicle is equipped with an automatic
transmission, install and tighten the two screws that
secure the gear selector indicator mechanism to the
back of the cluster housing. Tighten the screws to 2.2
N´m (20 in. lbs.).
(4) Align the instrument cluster with the cluster
opening in the instrument panel and push the cluster
firmly and evenly into place. The instrument panel
wire harness has two self-docking connectors that
will be automatically aligned with, and connected to
the instrument cluster connector receptacles when
the cluster is properly installed in the instrument
panel.
(5) Install and tighten the four screws that secure
the instrument cluster to the instrument panel (Fig.
2). Tighten the screws to 2.2 N´m (20 in. lbs.).
(6) Reinstall the cluster bezel onto the instrument
panel. (Refer to 23 - BODY/INSTRUMENT PANEL/
CLUSTER BEZEL - INSTALLATION).
(7) If the vehicle is equipped with an automatic
transmission, confirm proper operation of the gear
selector indicator. Calibrate the indicator, if required.
BR/BEINSTRUMENT CLUSTER 8J - 13
INSTRUMENT CLUSTER (Continued)

indicator or the instrument cluster circuitry that con-
trols the LED, (Refer to 8 - ELECTRICAL/INSTRU-
MENT CLUSTER - DIAGNOSIS AND TESTING).
For proper diagnosis of the PCM, the CCD data bus,
or the message inputs to the instrument cluster that
control the check gauges indicator, a DRBIIItscan
tool is required. Refer to the appropriate diagnostic
information.
CRUISE INDICATOR
DESCRIPTION
A cruise indicator is standard equipment on all
instrument clusters. However, on vehicles not
equipped with the optional speed control system, this
indicator is electronically disabled. The cruise indica-
tor consists of the word ªCRUISEº, which appears in
the lower portion of the odometer/trip odometer Vac-
uum-Fluorescent Display (VFD). The VFD is part of
the cluster electronic circuit board, and is visible
through a cutout located in the lower left corner of
the cluster overlay. The dark lens of the VFD pre-
vents the indicator from being clearly visible when it
is not illuminated. The word ªCRUISEº appears in
an amber color and at the same lighting level as the
odometer/trip odometer information when it is illumi-
nated by the instrument cluster electronic circuit
board. The cruise indicator is serviced as a unit with
the VFD in the instrument cluster.
OPERATION
The cruise indicator gives an indication to the vehi-
cle operator when the speed control system is turned
On, regardless of whether the speed control is
engaged. This indicator is controlled by the instru-
ment cluster circuit board based upon the cluster
programming and electronic messages received by
the cluster from the Powertrain Control Module
(PCM) over the Chrysler Collision Detection (CCD)
data bus. The cruise indicator receives battery cur-
rent on the instrument cluster electronic circuit
board through the fused ignition switch output (st-
run) circuit whenever the ignition switch is in the On
or Start positions; therefore, the indicator will always
be off when the ignition switch is in any position
except On or Start. The indicator only illuminates
when it is switched to ground by the instrument clus-
ter circuitry. The instrument cluster will turn on the
cruise indicator for the following reasons:
²Bulb Test- Each time the ignition switch is
turned to the On position the cruise indicator is illu-
minated for about two seconds as a bulb test.
²Cruise Lamp-On Message- Each time the
cluster receives a cruise lamp-on message from the
PCM indicating the speed control system has beenturned On, the cruise indicator is illuminated. The
indicator remains illuminated until the cluster
receives a cruise lamp-off message from the PCM or
until the ignition switch is turned to the Off position,
whichever occurs first.
²Actuator Test- Each time the cluster is put
through the actuator test, the cruise indicator will be
turned on during the VFD portion of the test to con-
firm the functionality of the VFD, and again during
the bulb check portion of the test to confirm the func-
tionality of the cluster control circuitry.
The PCM continually monitors the speed control
switches to determine the proper outputs to the
speed control servo. The PCM then sends the proper
cruise indicator lamp-on and lamp-off messages to
the instrument cluster. For further diagnosis of the
cruise indicator or the instrument cluster circuitry
that controls the indicator, (Refer to 8 - ELECTRI-
CAL/INSTRUMENT CLUSTER - DIAGNOSIS AND
TESTING). For proper diagnosis of the speed control
system, the PCM, the CCD data bus, or the message
inputs to the instrument cluster that control the
cruise indicator, a DRBIIItscan tool is required.
Refer to the appropriate diagnostic information.
ENGINE TEMPERATURE
GAUGE
DESCRIPTION
An engine coolant temperature gauge is standard
equipment on all instrument clusters. The engine
coolant temperature gauge is located in the lower left
quadrant of the instrument cluster, below the voltage
gauge. The engine coolant temperature gauge con-
sists of a movable gauge needle or pointer controlled
by the instrument cluster circuitry and a fixed 90
degree scale on the cluster overlay that reads left-to-
right from 54É C (130É F) to 127É C (260É F) for gas-
oline engines, or from 60É C (140É F) to 116É C (240É
F) for diesel engines. An International Control and
Display Symbol icon for ªEngine Coolant Tempera-
tureº is located on the cluster overlay, directly below
the lowest graduation of the gauge scale. The engine
coolant temperature gauge graphics are white
against a black field except for a single red gradua-
tion at the high end of the gauge scale, making them
clearly visible within the instrument cluster in day-
light. When illuminated from behind by the panel
lamps dimmer controlled cluster illumination lighting
with the exterior lamps turned On, the white graph-
ics appear blue-green and the red graphics appear
red. The orange gauge needle is internally illumi-
nated. Gauge illumination is provided by replaceable
incandescent bulb and bulb holder units located on
the instrument cluster electronic circuit board. The
8J - 18 INSTRUMENT CLUSTERBR/BE
CHECK GAUGES INDICATOR (Continued)

²PCM Lamp-On Message- Each time the clus-
ter receives a lamp-on message from the PCM or
ECM, the indicator will be illuminated. The indicator
can be flashed on and off, or illuminated solid, as dic-
tated by the PCM or ECM message. For some DTC's,
if a problem does not recur, the PCM or ECM will
send a lamp-off message automatically. Other DTC's
may require that a fault be repaired and the PCM or
ECM be reset before a lamp-off message will be sent.
For more information on the PCM, the ECM, and the
DTC set and reset parameters, (Refer to 25 - EMIS-
SIONS CONTROL - OPERATION).
²Communication Error- If the cluster receives
no lamp-on message from the PCM or ECM for
twenty seconds, the MIL is illuminated by the instru-
ment cluster to indicate a loss of bus communication.
The indicator remains controlled and illuminated by
the cluster until a valid lamp-on message is received
from the PCM or ECM.
²Actuator Test- Each time the cluster is put
through the actuator test, the indicator will be
turned on during the bulb check portion of the test to
confirm the functionality of the LED and the cluster
control circuitry.
The PCM/ECM continually monitor the fuel and
emissions system circuits and sensors to decide
whether the system is in good operating condition.
The PCM or ECM then sends the proper lamp-on or
lamp-off messages to the instrument cluster. For fur-
ther diagnosis of the MIL or the instrument cluster
circuitry that controls the LED, (Refer to 8 - ELEC-
TRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). If the instrument cluster turns on
the MIL after the bulb test, it may indicate that a
malfunction has occurred and that the fuel and emis-
sions systems may require service. For proper diag-
nosis of the fuel and emissions systems, the PCM,
the ECM, the CCD data bus, or the message inputs
to the instrument cluster that control the MIL, a
DRBIIItscan tool is required. Refer to the appropri-
ate diagnostic information.
ODOMETER
DESCRIPTION
An odometer and trip odometer are standard
equipment in all instrument clusters. The odometer
and trip odometer information are displayed in a
common electronic Vacuum-Fluorescent Display
(VFD), which is visible through a small window cut-
out located in the left lower quadrant of the cluster
overlay. However, the odometer and trip odometer
information are not displayed simultaneously. The
trip odometer reset switch on the instrument cluster
circuit board toggles the display between odometerand trip odometer modes by depressing the odometer/
trip odometer switch knob that extends through the
lower edge of the cluster lens, just right of the
tachometer. Both the odometer and the trip odometer
information is stored in the instrument cluster mem-
ory.
The odometer can display values up to 499,999
kilometers (499,999 miles). The odometer latches at
these values, and will not roll over to zero. The trip
odometer can display values up to 999.9 kilometers
(999.9 miles) before it rolls over to zero. The odome-
ter display does not have a decimal point and will
not show values less than a full unit (kilometer or
mile), the trip odometer display does have a decimal
point and will show tenths of a unit (kilometer or
mile). The unit of measure (kilometers or miles) for
the odometer and trip odometer display is not shown
in the VFD. The unit of measure for the instrument
cluster odometer/trip odometer is selected at the time
that it is manufactured, and cannot be changed. Dur-
ing daylight hours (exterior lamps Off) the VFD is
illuminated at full brightness for clear visibility. At
night (exterior lamps are On) the VFD lighting level
is adjusted with the other cluster illumination lamps
using the panel lamps dimmer thumbwheel on the
headlamp switch. However, a ªParadeº mode position
of the panel lamps dimmer thumbwheel allows the
VFD to be illuminated at full brightness while the
exterior lamps are turned On during daylight hours.
The VFD, the trip odometer switch, and the trip
odometer switch button are serviced as a unit with
the instrument cluster.
OPERATION
The odometer and trip odometer give an indication
to the vehicle operator of the distance the vehicle has
traveled. This gauge is controlled by the instrument
cluster circuit board based upon the cluster program-
ming and electronic messages received by the cluster
from the Powertrain Control Module (PCM) over the
Chrysler Collision Detection (CCD) data bus. The
odometer and trip odometer information is displayed
by the instrument cluster Vacuum Fluorescent Dis-
play (VFD), and the VFD will not display odometer
or trip odometer information after the ignition switch
is turned to the Off position. The instrument cluster
circuitry controls the VFD and provides the following
features:
²Odometer/Trip Odometer Display Toggling-
Actuating the trip odometer reset switch momen-
tarily with the ignition switch in the On position will
toggle the VFD between the odometer and trip odom-
eter display. Each time the ignition switch is turned
to the On position the VFD will automatically return
to the mode (odometer or trip odometer) last dis-
8J - 24 INSTRUMENT CLUSTERBR/BE
MALFUNCTION INDICATOR LAMP MIL (Continued)

played when the ignition switch was turned to the
Off position.
²Trip Odometer Reset- When the trip odome-
ter reset switch is pressed and held for longer than
about two seconds, the trip odometer will be reset to
000.0 kilometers (miles). The VFD must be display-
ing the trip odometer information in order for the
trip odometer information to be reset.
²Message Failure- If the cluster fails to receive
a distance message during normal operation, it will
flash the odometer/trip odometer distance informa-
tion on and off repeatedly until a distance message is
received, or until the ignition switch is turned to the
Off position, whichever occurs first. If the cluster
does not receive a distance message within one sec-
ond after the ignition switch is turned to the On posi-
tion, it will display the last distance message stored
in the cluster memory. If the cluster is unable to dis-
play distance information due to an error internal to
the cluster, the VFD display will be blank.
²Actuator Test- Each time the cluster is put
through the actuator test, the VFD will display all of
its characters at once, then step through each char-
acter segment individually during the VFD portion of
the test to confirm the functionality of the VFD and
the cluster control circuitry.
The PCM continually monitors the vehicle speed
sensor, then sends the proper distance messages to
the instrument cluster. For further diagnosis of the
odometer/trip odometer or the instrument cluster cir-
cuitry that controls these functions, (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER - DIAGNO-
SIS AND TESTING). For proper diagnosis of the
vehicle speed sensor, the PCM, the CCD data bus, or
the message inputs to the instrument cluster that
control the odometer/trip odometer, a DRBIIItscan
tool is required. Refer to the appropriate diagnostic
information.
OIL PRESSURE GAUGE
DESCRIPTION
An oil pressure gauge is standard equipment on all
instrument clusters. The oil pressure gauge is located
in the upper right quadrant of the instrument clus-
ter, above the fuel gauge. The oil pressure gauge con-
sists of a movable gauge needle or pointer controlled
by the instrument cluster circuitry and a fixed 90
degree scale on the cluster overlay that reads left-to-
right either from 0 kPa (0 psi) to 758 kPa (110 psi).
An International Control and Display Symbol icon for
ªEngine Oilº is located on the cluster overlay, directly
below the highest graduation of the gauge scale. The
oil pressure gauge graphics are white against a black
field except for a single red graduation at the lowend of the gauge scale, making them clearly visible
within the instrument cluster in daylight. When illu-
minated from behind by the panel lamps dimmer
controlled cluster illumination lighting with the exte-
rior lamps turned On, the white graphics appear
blue-green and the red graphics appear red. The
orange gauge needle is internally illuminated. Gauge
illumination is provided by replaceable incandescent
bulb and bulb holder units located on the instrument
cluster electronic circuit board. The oil pressure
gauge is serviced as a unit with the instrument clus-
ter.
OPERATION
The oil pressure gauge gives an indication to the
vehicle operator of the engine oil pressure. This
gauge is controlled by the instrument cluster circuit
board based upon the cluster programming and elec-
tronic messages received by the cluster from the
Powertrain Control Module (PCM) over the Chrysler
Collision Detection (CCD) data bus. The oil pressure
gauge is an air core magnetic unit that receives bat-
tery current on the instrument cluster electronic cir-
cuit board through the fused ignition switch output
(st-run) circuit whenever the ignition switch is in the
On or Start positions. The cluster is programmed to
move the gauge needle back to the low end of the
scale after the ignition switch is turned to the Off
position. The instrument cluster circuitry controls
the gauge needle position and provides the following
features:
²Engine Oil Pressure Message- The instru-
ment cluster circuitry restricts the oil pressure gauge
needle operation in order to provide readings that
are consistent with customer expectations. Each time
the cluster receives a message from the PCM indicat-
ing the engine oil pressure is between about 6.9 kPa
(1 psi) and 137.9 kPa (20 psi) for gasoline engines, or
55 kPa (8 psi) and 58.6 kPa (8.5 psi) for diesel
engines, the cluster holds the gauge needle at a point
about 11 degrees above the low end of normal incre-
ment on the gauge scale. Each time the cluster
receives a message from the PCM indicating the
engine oil pressure is between about 517.1 kPa (75
psi) and 755 kPa (109.5 psi) for gasoline engines, or
551.6 kPa (80 psi) and 755 kPa (109.5 psi) for diesel
engines, the cluster holds the gauge needle at a point
about 7.4 degrees below the high end of normal
increment on the gauge scale. When the cluster
receives messages from the PCM indicating the
engine oil pressure is between about 137.9 kPa (20
psi) and 517.1 kPa (75 psi) for gasoline engines, or
58.6 kPa (8.5 psi) and 551.6 kPa (80 psi) for diesel
engines], the gauge needle is moved to the actual
pressure position on the gauge scale.
BR/BEINSTRUMENT CLUSTER 8J - 25
ODOMETER (Continued)

(3) Engage the two mounting hooks on the rear of
the overhead console housing in the mounting holes
in the inner roof panel.
(4) Slide the overhead console forward far enough
to align the two latches on the front of the housing
with their receptacles in the inner roof panel.
(5) Push upward firmly and evenly on the front of
the overhead console until each of the two latches is
fully engaged in its receptacle in the inner roof panel.
(6) Close the garage door opener storage bin door.
(7) Reconnect the battery negative cable.
SPECIAL TOOLS
OVERHEAD CONSOLE SPECIAL TOOL
COMPASS/MINI-TRIP
COMPUTER
DESCRIPTION
The compass mini-trip computer is located in the
premium overhead console on models equipped with
this option. Two compass mini-trip computer units
are available. One unit is used on vehicles not
equipped with the Vehicle Theft Security System
(VTSS) option, and the other is used on vehicles with
the VTSS option. Both compass mini-trip computer
units include the electronic control module, a Vacu-
um-Fluorescent Display (VFD), a compass flux-gate
unit and two push button function switches.
Compass mini-trip computer units for vehicles
equipped with the VTSS include a red Light-Emit-
ting Diode (LED) on their electronic circuit board.
This LED protrudes through the bottom of the lens
on the front of the overhead console unit, and serves
as the security indicator lamp. Refer toSecurity
Indicator Lampin Vehicle Theft/Security Systems
for more information on this feature.
The compass mini-trip computer module contains a
central processing unit and interfaces with other
electronic modules in the vehicle on the Chrysler Col-
lision Detection (CCD) data bus network. The CCD
data bus network allows the sharing of sensor infor-
mation. This helps to reduce wire harness complexity,
reduce internal controller hardware, and reduce com-
ponent sensor current loads. At the same time, thissystem provides increased reliability, enhanced diag-
nostics, and allows the addition of many new feature
capabilities.
The compass mini-trip computer provides several
electronic functions and features. Some of the func-
tions and features that the compass mini-trip com-
puter module supports and/or controls, include the
following display options:
²Compass and temperature- provides the out-
side temperature and one of eight compass readings
to indicate the direction the vehicle is facing.
²Compass and compass in degrees- provides
one of eight compass readings to indicate the direc-
tion the vehicle is facing and provides the compass
direction in degrees.
²Trip odometer (ODO)- shows the distance
travelled since the last trip computer reset.
²Average fuel economy (AVG ECO)- shows
the average fuel economy since the last trip computer
reset.
²Instant fuel economy (ECO)- shows the
present fuel economy based upon the current vehicle
distance and fuel used information.
²Distance to empty (DTE)- shows the esti-
mated distance that can be travelled with the fuel
remaining in the fuel tank. This estimated distance
is computed using the average miles-per-gallon from
the last 30 gallons of fuel used.
²Elapsed time (ET)- shows the accumulated
ignition-on time since the last trip computer reset.
²Blank screen- the compass mini-trip VFD is
turned off.
The ambient temperature sensor is hard wired to
the compass mini-trip computer module. Data input
for all other compass mini-trip computer functions,
including VFD dimming level, is received through
CCD data bus messages. The compass mini-trip com-
puter uses its internal programming and all of these
inputs to calculate and display the requested data. If
the data displayed is incorrect, perform the self-diag-
nostic tests as described in this group. If these tests
prove inconclusive, the use of a DRBIIItscan tool
and the proper Diagnostic Procedures manual are
recommended for further testing of the compass
mini-trip computer module and the CCD data bus.
The compass mini-trip computer module cannot be
repaired, and is available for service only as a unit. If
faulty or damaged, the complete module must be
replaced.
OPERATION
The compass mini-trip computer only operates with
the ignition switch in the On position. When the igni-
tion switch is turned to the On position, all of the
segments in the compass mini-trip computer VFD
will be turned on for one second, then the display
Degaussing Tool 6029
BR/BEMESSAGE SYSTEMS 8M - 9
OVERHEAD CONSOLE (Continued)

NV241LD - CLEANING, TRANSFER CASE . 21-441
NV241LD - DESCRIPTION, TRANSFER
CASE.............................21-430
NV241LD - DISASSEMBLY, TRANSFER
CASE.............................21-432
NV241LD - INSPECTION, TRANSFER
CASE.............................21-442
NV241LD - INSTALLATION, TRANSFER
CASE.............................21-458
NV241LD - OPERATION, TRANSFER
CASE.............................21-430
NV241LD - REMOVAL, TRANSFER CASE . 21-432
NV241LD - TRANSFER CASE...........21-459
NV4500 - ASSEMBLY, MANUAL.........21-21
NV4500 - CLEANING, MANUAL..........21-20
NV4500 - DESCRIPTION, MANUAL........21-1
NV4500 - DIAGNOSIS AND TESTING,
MANUAL............................21-3
NV4500 - DISASSEMBLY, MANUAL........21-5
NV4500 - INSPECTION, MANUAL........21-20
NV4500 - INSTALLATION, ADAPTER
HOUSING SEAL......................21-42
NV4500 - INSTALLATION, EXTENSION
HOUSING SEAL......................21-42
NV4500 - INSTALLATION, MANUAL......21-37
NV4500 - INSTALLATION, SHIFT COVER . . . 21-45
NV4500 - INSTALLATION, SHIFT
MECHANISM........................21-44
NV4500 - OPERATION, MANUAL..........21-3
NV4500 - REMOVAL, ADAPTER
HOUSING SEAL......................21-42
NV4500 - REMOVAL, EXTENSION
HOUSING SEAL......................21-42
NV4500 - REMOVAL, MANUAL...........21-4
NV4500 - REMOVAL, SHIFT COVER......21-45
NV4500 - REMOVAL, SHIFT MECHANISM . . 21-43
NV4500 - SPECIFICATIONS, MANUAL.....21-38
NV5600 - ASSEMBLY, MANUAL.........21-64
NV5600 - CLEANING, MANUAL..........21-63
NV5600 - DESCRIPTION, MANUAL.......21-46
NV5600 - DIAGNOSIS AND TESTING,
MANUAL...........................21-48
NV5600 - DISASSEMBLY, MANUAL.......21-49
NV5600 - INSPECTION, MANUAL........21-63
NV5600 - INSTALLATION, ADAPTER
HOUSING SEAL......................21-85
NV5600 - INSTALLATION, EXTENSION
HOUSING SEAL......................21-85
NV5600 - INSTALLATION, MANUAL......21-78
NV5600 - INSTALLATION, SHIFT COVER . . . 21-86
NV5600 - OPERATION, MANUAL.........21-48
NV5600 - REMOVAL, ADAPTER
HOUSING SEAL......................21-85
NV5600 - REMOVAL, EXTENSION
HOUSING SEAL......................21-85
NV5600 - REMOVAL, MANUAL..........21-49
NV5600 - REMOVAL, SHIFT COVER......21-86
NV5600 - SPECIFICATIONS, MANUAL.....21-79
O2 SENSOR - DESCRIPTION............14-45
O2 SENSOR - INSTALLATION...........14-47
O2 SENSOR - OPERATION.............14-45
O2 SENSOR - REMOVAL...............14-46
ODOMETER - DESCRIPTION............8J-24
ODOMETER - OPERATION..............8J-24
OFF INDICATOR - DESCRIPTION,
OVERDRIVE.........................8J-26
OFF INDICATOR - OPERATION,
OVERDRIVE.........................8J-26
OIL - DESCRIPTION, ENGINE..........0-4,0-5
OIL - DESCRIPTION, REFRIGERANT......24-57
OIL - OPERATION, REFRIGERANT........24-57
OIL - STANDARD PROCEDURE, ENGINE . . 9-101,
9-45
OIL COOLER - INSTALLATION, AIR TO.....7-87
OIL COOLER & LINES - CLEANING AND
INSPECTION........................9-179
OIL COOLER - REMOVAL, AIR TO.........7-86
OIL COOLER - REMOVAL, WATER TO......7-86
OIL FILTER - INSTALLATION . . . 9-102,9-179,9-46
OIL FILTER - REMOVAL......9-102,9-179,9-46
OIL LEAKS - DIAGNOSIS AND TESTING,
ENGINE
.........................9-43,9-99
OIL LEVEL - STANDARD PROCEDURE,
ENGINE
............................9-178
OIL LEVEL - STANDARD PROCEDURE,
REFRIGERANT
.......................24-57
OIL PAN - CLEANING
........9-103,9-179,9-46
OIL PAN - INSPECTION
.......9-103,9-179,9-46OIL PAN - INSTALLATION.....9-103,9-180,9-46
OIL PAN - REMOVAL.........9-102,9-179,9-46
OIL PRESSURE - DIAGNOSIS AND
TESTING, ENGINE...........9-101,9-178,9-45
OIL PRESSURE GAUGE - DESCRIPTION . . . 8J-25
OIL PRESSURE GAUGE - OPERATION.....8J-25
OIL PRESSURE RELIEF VALVE -
CLEANING..........................9-180
OIL PRESSURE RELIEF VALVE -
INSPECTION........................9-180
OIL PRESSURE RELIEF VALVE -
INSTALLATION.......................9-180
OIL PRESSURE RELIEF VALVE -
REMOVAL..........................9-180
OIL PRESSURE SENSOR/SWITCH -
INSTALLATION.......................9-181
OIL PRESSURE SENSOR/SWITCH -
REMOVAL..........................9-181
OIL PUMP - ASSEMBLY................9-49
OIL PUMP - ASSEMBLY........21-169,21-340
OIL PUMP - CLEANING...........9-104,9-181
OIL PUMP - CLEANING.........21-168,21-338
OIL PUMP - DESCRIPTION......21-166,21-336
OIL PUMP - DISASSEMBLY.............9-47
OIL PUMP - DISASSEMBLY......21-167,21-337
OIL PUMP - INSPECTION.....9-104,9-181,9-47
OIL PUMP - INSPECTION.......21-168,21-339
OIL PUMP - INSTALLATION . . . 9-106,9-182,9-50
OIL PUMP - OPERATION.........21-166,21-336
OIL PUMP - REMOVAL.......9-104,9-181,9-47
OIL PUMP VOLUME CHECK - STANDARD
PROCEDURE.................21-166,21-336
OIL SEAL - FRONT - DESCRIPTION,
CRANKSHAFT........................9-32
OIL SEAL - FRONT - INSTALLATION,
CRANKSHAFT...................9-160,9-32
OIL SEAL - FRONT - OPERATION,
CRANKSHAFT........................9-32
OIL SEAL - FRONT - REMOVAL,
CRANKSHAFT...................9-160,9-32
OIL SEAL - FRONT COVER INSTALLED -
INSTALLATION, FRONT.................9-89
OIL SEAL - FRONT COVER INSTALLED -
REMOVAL, FRONT.....................9-89
OIL SEAL - FRONT COVER REMOVED -
INSTALLATION, FRONT.................9-90
OIL SEAL - FRONT COVER REMOVED -
REMOVAL, FRONT.....................9-89
OIL SEAL - REAR - DESCRIPTION,
CRANKSHAFT........................9-33
OIL SEAL - REAR - INSTALLATION,
CRANKSHAFT...............9-162,9-34,9-90
OIL SEAL - REAR - OPERATION,
CRANKSHAFT........................9-33
OIL SEAL - REAR - REMOVAL,
CRANKSHAFT...............9-161,9-33,9-90
OIL SEAL RETAINER - INSTALLATION,
CRANKSHAFT REAR..............9-163,9-90
OIL SEAL RETAINER - REMOVAL,
CRANKSHAFT REAR..............9-162,9-90
OIL SERVICE - STANDARD PROCEDURE,
ENGINE............................9-178
ON-BOARD DIAGNOSTICS (OBD) -
DIAGNOSIS AND TESTING...............7-5
ONE WAY CHECK VALVE - DESCRIPTION . . 25-31
ONE WAY CHECK VALVE - INSTALLATION . 25-31
ONE WAY CHECK VALVE - OPERATION....25-31
ONE WAY CHECK VALVE - REMOVAL.....25-31
ONE-WAY CHECK VALVE - DIAGNOSIS
AND TESTING.......................25-31
ON/OFF SWITCH - DESCRIPTION,
PASSENGER AIRBAG.................8O-23
ON/OFF SWITCH - INSTALLATION,
PASSENGER AIRBAG.................8O-25
ON/OFF SWITCH - OPERATION,
PASSENGER AIRBAG.................8O-24
ON/OFF SWITCH - REMOVAL,
PASSENGER AIRBAG.................8O-24
OPEN-CIRCUIT VOLTAGE TEST -
STANDARD PROCEDURE...............8F-12
OPENING COVER - INSTALLATION,
STEERING COLUMN
.................23-114
OPENING COVER - REMOVAL, STEERING
COLUMN
..........................23-113
OPENING DIMENSIONS, SPECIFICATIONS
- BODY
............................23-60
OPENING SEAL - INSTALLATION, DOOR
. . 23-152
OPENING SEAL - REMOVAL, DOOR
.....23-152OPENING UPPER TRIM - INSTALLATION,
GLOVE BOX........................23-112
OPENING UPPER TRIM - REMOVAL,
GLOVE BOX........................23-112
ORIFICE TUBE - DESCRIPTION, A/C......24-54
ORIFICE TUBE - DIAGNOSIS AND
TESTING, FIXED.....................24-54
ORIFICE TUBE - INSTALLATION, A/C......24-54
ORIFICE TUBE - OPERATION, A/C........24-54
ORIFICE TUBE - REMOVAL, A/C.........24-54
OUTBOARD IDENTIFICATION LAMP -
INSTALLATION.......................8L-29
OUTBOARD IDENTIFICATION LAMP -
REMOVAL..........................8L-28
OUTER BELT WEATHERSTRIP -
INSTALLATION, FRONT DOOR..........23-153
OUTER BELT WEATHERSTRIP -
REMOVAL, FRONT DOOR.............23-153
OUTLET - DESCRIPTION, CIGAR
LIGHTER.........................8W-97-2
OUTLET - DESCRIPTION, POWER.....8W-97-10
OUTLET - DIAGNOSIS AND TESTING,
CIGAR LIGHTER...................8W-97-2
OUTLET - DIAGNOSIS AND TESTING,
POWER.........................8W-97-10
OUTLET - INSTALLATION, CIGAR
LIGHTER.........................8W-97-4
OUTLET - INSTALLATION, POWER....8W-97-11
OUTLET - OPERATION, CIGAR LIGHTER . 8W-97-2
OUTLET - OPERATION, POWER......8W-97-10
OUTLET - REMOVAL, CIGAR LIGHTER . . . 8W-97-3
OUTLET - REMOVAL, POWER........8W-97-11
OUTLET BARRELS - INSTALLATION,
PANEL.............................24-31
OUTLET BARRELS - REMOVAL, PANEL . . . 24-31
OUTPUT - DESCRIPTION, PCM...........8I-4
OUTPUT - DIAGNOSIS AND TESTING,
VACUUM PUMP.......................7-34
OUTPUT - OPERATION, PCM............14-52
OUTPUT - OPERATION, PCM.............8I-4
OUTPUT SHAFT FRONT BEARING -
INSTALLATION................21-171,21-342
OUTPUT SHAFT FRONT BEARING -
REMOVAL...................21-171,21-342
OUTPUT SHAFT REAR BEARING -
INSTALLATION................21-172,21-343
OUTPUT SHAFT REAR BEARING -
REMOVAL...................21-171,21-343
OUTPUT SHAFT SEAL - INSTALLATION,
FRONT......................21-461,21-498
OUTPUT SHAFT SEAL - REMOVAL,
FRONT......................21-461,21-498
OVERDRIVE CLUTCH - DESCRIPTION . . . 21-172,
21-343
OVERDRIVE CLUTCH - OPERATION.....21-172,
21-343
OVERDRIVE ELECTRICAL CONTROLS -
DIAGNOSIS AND TESTING......21-191,21-344
OVERDRIVE OFF INDICATOR -
DESCRIPTION.......................8J-26
OVERDRIVE OFF INDICATOR -
OPERATION.........................8J-26
OVERDRIVE SWITCH - DESCRIPTION . . . 21-190,
21-344
OVERDRIVE SWITCH - INSTALLATION . . . 21-191,
21-345
OVERDRIVE SWITCH - OPERATION.....21-190,
21-344
OVERDRIVE SWITCH - REMOVAL . 21-191,21-344
OVERDRIVE UNIT - ASSEMBLY . . . 21-180,21-354
OVERDRIVE UNIT - CLEANING . . . 21-179,21-353
OVERDRIVE UNIT - DISASSEMBLY.....21-173,
21-346
OVERDRIVE UNIT - INSPECTION . 21-180,21-353
OVERDRIVE UNIT - INSTALLATION.....21-189,
21-362
OVERDRIVE UNIT - REMOVAL . . . 21-173,21-345
OVERFLOW VALVE - DESCRIPTION......14-87
OVERFLOW VALVE - DIAGNOSIS AND
TESTING...........................14-87
OVERFLOW VALVE - INSTALLATION......14-88
OVERFLOW VALVE - OPERATION
........14-87
OVERFLOW VALVE - REMOVAL
..........14-88
OVERHEAD CONSOLE - DESCRIPTION
....8M-1
OVERHEAD CONSOLE ASSEMBLY,
ASSEMBLY
..........................8M-8
OVERHEAD CONSOLE DISASSEMBLY,
DISASSEMBLY
.......................8M-7
BR/BEINDEX 21
Description Group-Page Description Group-Page Description Group-Page