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running this test. These messages will clear after
paging back out of this test. Therefore, it is impor-
tant to note all of the AC Cooldown test messages
before doing so. Running the AC Cooldown test will
cause the DELAY and Snowflake VF segments on
the ATC to flash for 162 seconds. If the air condi-
tioning portion of this test fails, the DELAY and
Snowflake VF segments will continue to flash until
the vehicle is driven more than three miles.
3.11 INSTRUMENT CLUSTER
The Instrument Cluster receives and sends mes-
sages to other modules via the PCI bus circuit. The
indicator lamps will illuminate briefly for a bulb
check when the ignition is turned from off to run.
All of the gauges receive their information via the
PCI bus from the powertrain control module and
body control module.
The gauges and the LEDs are not individually
replaceable thereby requiring complete replace-
ment of the Instrument Cluster if a repair is neces-
sary. In the event that the Instrument Cluster loses
communication with other modules on the PCI bus,
the cluster will display "no bus" in the VF display.
The Trip/Reset button is used to switch the dis-
play from trip to total mileage. Holding the button
when the display is in the trip mode will reset the
trip mileage. This button is also used to put the
cluster into self-diagnostic mode. The odometer
display uses blue-green vacuum fluorescent digital
characters.
On base models, the Instrument Cluster has
three gauges: Speedometer, fuel and temperature. A
red dot moves transversely appears through open-
ings in the Instrument Cluster face (P-R-N-D-2-1)
to indicate the gear selected.
With other models, the Instrument Cluster may
also include a tachometer and use a vacuum-
fluorescent shift indicator.
The high-line Instrument Cluster features Elec-
troluminescent Illumination of the gauge faces (EL
Panel). This feature eliminates the use of bulbs for
gauge/panel lighting. In a manner similar to fluo-
rescent lights, a/c voltage from an inverter inte-
grated circuit chip is applied to the phosphorescent
material, causing it to glow. The phosphorescent
material is screen-printed onto flexible Mylar
sheets that form the gauge faces.
The odometer display and door/liftgate ajar indi-
cators turn on when a door is opened to assist both
the customer and service technician to view the
odometer without turning the ignition on.
On models with AutoStick, the display includes
an O/D OFF indicator that is illuminated when the
driver presses the Overdrive Off button on the
transaxle shifter.
GENERAL INFORMATION
For complete details of the Instrument Cluster,
refer to the RS/RG Service Manual.
3.11.1 INSTRUMENT CLUSTER SELF TEST
1. Depress and hold the Odometer Reset button.
2. Turn the ignition switch to on.
3. Release the Odometer reset button.
The Instrument Cluster will illuminate all indi-
cators and step the gauges through several calibra-
tion points. Also, the odometer will display any
stored codes that may have set.
3.11.2 MESSAGE CENTER
The Message Center is above the brow of the
Instrument Cluster. It houses the following warn-
ing indicators: Check Engine/Service Engine Soon,
High Beam, Left and Right turn signals, Security
Alarm Set, and Low Oil Pressure. On base models
equipped with the three-speed transaxle, these in-
dicators appear in the face of the cluster. The
Security Alarm set indicator is now a large red
circle symbol.
Activation of Instrument Cluster indicators is
coordinated with indicators in the message center
and EVIC where used to avoid redundancy. A re-
vised safety standard now requires that the seat
belt warning lamp in the Instrument Cluster re-
main lit if the driver seat belt is not buckled. A
headlamp out indicator is used to alert the driver
when a headlamp is not functioning.
3.12 INTERIOR LIGHTING
3.12.1 COURTESY LAMP CONTROL
The body controller has direct control over all of
the vehicle's courtesy lamps. The body computer
will illuminate the courtesy lamps under any of the
following conditions:
1. Any door ajar and courtesy lamp switch on the
headlamp switch is not in the dome off position.
2. The courtesy lamp switch on the headlamp
switch is in the dome on position.
3. A Remote Keyless Entry unlock message is re-
ceived.
4. Driver door unlocked with key (with VTSS only).
3.12.2 ILLUMINATED ENTRY
Illuminated entry will be initiated when the cus-
tomer enters the vehicle by unlocking the doors
with the key fob, or with the key if the vehicle is
equipped with vehicle theft alarm. Upon exiting the
vehicle, if the lock button is pressed with a door
open, illuminated entry will cancel when the door
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