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8M - 4
MESSAGE SYSTEMS
OVERHEAD CONSOLE (Continued)
Fig. 3 Roof Demagnetizing Pattern
tool at least 11 centimeters (4 inches) to each side of
the roof center line, and 28 centimeters (11 inches)
back from the windshield header.
(10) With the degaussing tool still energized,
slowly back it away from the roof panel. When the
tip of the tool is at least 61 centimeters (2 feet) from
the roof panel, disconnect the tool.
(11) Calibrate the compass and adjust the compass
variance. Refer to procedure in this section for
detailed instructions.
STANDARD PROCEDURE - COMPASS
VARIATION ADJUSTMENT
Compass variance, also known as magnetic decli-
nation, is the difference in angle between magnetic
north and true geographic north. In some geographic
locations, the difference between magnetic and geo-
graphic north is great enough to cause the compass
to give false readings. If this problem occurs, the
compass variance setting may need to be changed.
To set the compass variance:
(1) Using the Variance Settings map, find your
geographic location and note the zone number (Fig.
4).
(2) Turn the ignition switch to the On position. If
the compass/thermometer data is not currently being
displayed, momentarily depress and release the
STEP push button to reach the compass/thermometer
display.
(3) Depress the Reset push button and hold the
button down until "VAR = XX" appears in the display.
This takes about five seconds.
(4) Release the push button(s). "VAR =XX " will
remain in the display. "XX" equals the current vari-
ance zone setting.
(5) Momentarily depress and release the STEP
push button to step through the zone numbers, until
the zone number for your geographic location
appears in the display.
(6) Momentarily depress and release the RESET
push button to enter the displayed zone number into
the module memory.
(7) Confirm that the correct directions are now
indicated by the compass.
REMOVAL - OVERHEAD CONSOLE
(1) Disconnect and isolate the negative battery
cable.
(2) Open the storage bin and remove the T10 over-
head console retaining screw.
(3) Using your fingertips, grasp the sides of the
overhead console and pull down and rearward evenly
to disengage the unit.
(4) Lower the overhead console far enough to
access the wire harness connectors.
(5) Disconnect the electronic module and the read-
ing/courtesy lamps electrical connector.
(6) Remove the overhead console from the vehicle.
DISASSEMBLY
(1) Remove the overhead console from the vehicle
(Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE -
REMOVAL).
(2) Remove the two module retaining screws (Fig.
5).
(3) Disconnect the module electrical connector.
Depress the connector retaining tab and pull straight
apart.
(4) Remove the module from the overhead console.
ASSEMBLY
(1) Connect the module electrical connector.
(2) Position the module and install the two module
retaining screws.
(3) Install the overhead console in the vehicle.
INSTALLATION
(1) Position the overhead console in the vehicle.
(2) Connect the electronic module and the reading/
courtesy lamps electrical connector.
CS
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