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OVERHEAD CONSOLE 8C - 1
OVERHEAD CONSOLE
CONTENTS
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page
COMPASS REPAIR PROCEDURES ...........
CONSOLE REPAIR PROCEDURES ...........
DESCRIPTION ...........................
DIAGNOSTIC PROCEDURES ................
KEYLESS ENTRY RECEIVER ................
LENS/LAMP REPLACEMENT ...............
PUSH BUTTON MODULE REPLACEMENT .....
THERMOMETER SENSOR REPLACEMENT .....
TRIP COMPUTER REPLACEMENT ...........
DESCRIPTION
The overhead console includes:
reading and courtesy lights for the front and rear
seats
²
the receiver for the keyless entry system
storage compartment for remote garage door
opener
²
storage compartments sun glasses.
A compass/thermometer mini trip computer that
displays 6 conditions:
²
Compass/Temperature
²
Trip odometer (ODO)
²
Average miles per gallon (ECO)
²
Instant miles per gallon (ECO)
²
Distance to empty (DTE)
²
Elapsed time (ET)
²
Blank Display
READING AND COURTESY LAMPS
All reading and courtesy lamps in the overhead
console are activated by the door courtesy circuit.
When all four doors and the liftgate are closed the
lamps can be activated by depressing the correspond-
ing lens. When any door or the liftgate is open, the
switches are disabled. They will not turn the lamps
off.
TRIP COMPUTER
Actuating the STEP switch will cause the trip com-
puter to change mode of operation when ignition is
ON. Traveler data is obtained from the Powertrain
Control Module and HEVAC on the CCD lines. If the
data displayed is wrong, run self diagnostics before
replacing the computer. The DRB II is recommended
for checking the CCD lines.
necessary is to drive the vehicle in 3 complete circles,
on level ground, in not less than 48 seconds. This will
‘‘reorient’’ the unit to its vehicle. The unit will also
compensate for magnetism the vehicle may acquire
during its life. Care should be used to avoid putting
anything magnetic on the roof of the vehicle.
The unit can compensate for some magnetic fields
in the body. The use of magnetic attachments like
antenna mounts or repair order ‘‘hats’’ placed directly
on the roof can exceed the compensation ability of the
unit. Magnetic bit drivers used on the fasteners to
hold the assembly to the roof header can also affect
operation. If the vehicle roof should become magne-
tized, then the demagnetizing and calibration proce-
dures may be required to restore proper operation.
COMPASS
The compass will display the direction the vehicle is
pointed in using the 8 major compass headings (Ex-
amples: North is ‘‘N’’, Northeast is ‘‘NE’’). It does not
display the headings in actual degrees.
The compass is a self calibrating unit that requires
no adjusting. The only calibration that may prove
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 8C - 2 OVERHEAD CONSOLE
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If the front console attaching screw is re-
placed, the new screw must be a #10 stainless.
If the compass functions but accuracy is suspect, it
may be necessary to perform a variation adjustment.
This procedure allows the unit to accommodate varia-
tions in the earth’s magnetic field strength based on
geographic location.
If the compass has blanked out and only CAL
appears, demagnetizing may be necessary to re-
move residual magnetic fields.
THERMOMETER
The ambient temperature display can be changed
from Fahrenheit to Celsius using the US/Metric but-
ton. The temperature reported is not an instant read-
ing of conditions but an average temperature. It may
take the unit several minutes to react to a major
change such as driving out of a heated garage into
winter temperatures.
When the ignition switch is turned off, the last
displayed temperature reading stays in memory.
If the temperature is more than 55°C (131°F) or the
circuit is shorted to ground, the temperature display
should read SC. If the temperature message received
is less than -40°C (-40°F), or an open circuit exists,
the display should read OC.
DIAGNOSTIC PROCEDURES
Follow the appropriate diagnostic flow chart:
Chart 1 Describes the procedures for compass and
display problems.
²
Chart 2 Describes the procedures for outside tem-
perature measuring problems.
²
Chart 3 Describes the procedures for illumination
lamp problems.
Chart 1
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OVERHEAD CONSOLE 8C - 3
Chart 1 Continued
8C - 4
OVERHEAD CONSOLE
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Chart 2
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OVERHEAD CONSOLE 8C - 5
Chart 3
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