glove box CHRYSLER CARAVAN 2003 Owner's Manual
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8W-97 POWER DISTRIBUTION SYSTEM
TABLE OF CONTENTS
page page
POWER DISTRIBUTION SYSTEM
DESCRIPTION..........................1
OPERATION............................1
SPECIAL TOOLS
POWER DISTRIBUTION SYSTEMS.........2
ACCESSORY RELAY
DESCRIPTION..........................2
OPERATION............................2
DIAGNOSIS AND TESTING
DIAGNOSIS & TESTING - ACCESSORY
RELAY...............................2
REMOVAL.............................3
INSTALLATION..........................3
INTEGRATED POWER MODULE
DESCRIPTION..........................3OPERATION............................3
REMOVAL.............................4
INSTALLATION..........................4
IOD FUSE
DESCRIPTION..........................4
OPERATION............................5
REMOVAL.............................5
INSTALLATION..........................5
POWER OUTLET
DESCRIPTION..........................5
OPERATION............................5
DIAGNOSIS AND TESTING
DIAGNOSIS & TESTING - POWER OUTLET . . 6
REMOVAL.............................6
INSTALLATION..........................6
POWER DISTRIBUTION
SYSTEM
DESCRIPTION
This group covers the various standard and
optional power distribution components used on this
model. The power distribution system for this vehicle
consists of the following components:
²Integrated Power Module (IPM)
²Front Control Module (FCM)
²Power Outlets
Refer to Wiring Diagrams for complete circuit sche-
matics.
The power distribution system also incorporates
various types of circuit control and protection fea-
tures, including:
²Automatic resetting circuit breakers
²Blade-type fuses
²Bus bars
²Cartridge fuses
²Circuit splice blocks
²Flashers
²Fusible links
²RelaysFollowing are general descriptions of the major
components in the power distribution system. See the
owner's manual in the vehicle glove box for more
information on the features and use of all of the
power distribution system components.
OPERATION
The power distribution system for this vehicle is
designed to provide safe, reliable, and centralized dis-
tribution points for the electrical current required to
operate all of the many standard and optional facto-
ry-installed electrical and electronic powertrain,
chassis, safety, security, comfort and convenience sys-
tems. At the same time, the power distribution sys-
tem was designed to provide ready access to these
electrical distribution points for the vehicle techni-
cian to use when conducting diagnosis and repair of
faulty circuits. The power distribution system can
also prove useful for the sourcing of additional elec-
trical circuits that may be required to provide the
electrical current needed to operate many accessories
that the vehicle owner may choose to have installed
in the aftermarket.
RS8W-97 POWER DISTRIBUTION SYSTEM8W-97-1
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Page 1795 of 2177
INSTRUMENT PANEL
TABLE OF CONTENTS
page page
CLUSTER BEZEL
REMOVAL.............................62
INSTALLATION.........................62
CUP HOLDER
REMOVAL.............................63
INSTALLATION.........................63
GLOVE BOX
REMOVAL.............................63
INSTALLATION.........................63
GLOVE BOX LATCH
REMOVAL.............................63
INSTALLATION.........................63
GLOVE BOX LATCH STRIKER
REMOVAL.............................64
INSTALLATION.........................64
INSTRUMENT PANEL ASSEMBLY
REMOVAL.............................64
INSTALLATION.........................65
INSTRUMENT PANEL CENTER BEZEL
REMOVAL.............................67
INSTALLATION.........................67
INSTRUMENT PANEL END CAP
REMOVAL.............................67INSTALLATION.........................67
INSTRUMENT PANEL TOP COVER
REMOVAL.............................67
INSTALLATION.........................67
LOWER CONSOLE
REMOVAL.............................68
INSTALLATION.........................68
LOWER INSTRUMENT PANEL
REMOVAL.............................68
INSTALLATION.........................68
LOWER STEERING COLUMN COVER
REMOVAL.............................69
INSTALLATION.........................69
STEERING COLUMN COVER BACKING PLATE
REMOVAL.............................69
INSTALLATION.........................69
OVER STEERING COLUMN COVER
REMOVAL.............................69
INSTALLATION.........................69
INSTRUMENT PANEL TOP PAD ASSEMBLY
REMOVAL.............................70
INSTALLATION.........................70
CLUSTER BEZEL
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove Over Steering Column Bezel by lifting
it straight up with a firm pull.
(3) Remove the four bezel attaching screws (Fig.
1).
(4) Tilt the steering column in the full down posi-
tion.
(5) Pull rearward on the cluster bezel and remove.
INSTALLATION
(1) Maneuver cluster bezel over steering column
and into position (Fig. 1).
(2) Install the four bezel attaching screws.
(3) Install the Over Steering Column Bezel by
positioning it over the retaining slots and firmly
snapping it into place.
(4) Connect the battery negative cable.
Fig. 1 CLUSTER BEZEL
1 - INSTRUMENT PANEL
2 - CLUSTER BEZEL
23 - 62 INSTRUMENT PANELRS
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CUP HOLDER
REMOVAL
(1) Remove the screw access cover from the bottom
of the center bezel.
(2) Remove the center bezel attaching screws.
(3) Using a trim stick (special tool #C-4755) or
equivalent, gently pry out on the edge of the instru-
ment panel center bezel. Hang off to the side leaving
the accessory switches connected.
(4) Pull the cup holder assembly rearward to dis-
engage the rear guide studs from instrument panel
(Fig. 2).
(5) Remove the cup holder assembly from lower
instrument panel.
INSTALLATION
(1) Ensure the cup holder assembly is in the closed
position. The cup holder assembly must be installed
as an assembly to ensure proper track position.
(2) Place the cup holder assembly into position in
the lower instrument panel and slide into opening
until the rear guide struts snap into place (Fig. 2).
(3) Install the center bezel.
(4) Install the center bezel attaching screws
(5) Install the screw access cover to the bottom of
the center bezel.
GLOVE BOX
REMOVAL
(1) Open glove box.
(2) Push in on sides of glove box bin and lower
door.
(3) Pivot glove box downward and disengage hinge
hooks from instrument panel.
(4) Remove glove box.
INSTALLATION
(1) Place glove box in position.
(2) Engage hinge hooks into instrument panel and
pivot glove box upward.
(3) Push in sides of glove box bin and snap glove
box assembly into instrument panel.
(4) Close glove box door.
GLOVE BOX LATCH
REMOVAL
(1) Open glove box.
(2) Push in on sides of glove box bin and lower
door.
(3) Pivot glove box downward and disengage hinge
hooks from instrument panel.
(4) Remove glove box.
(5) Remove the assembly screws.
(6) Disassemble the glove box.
(7) Separate the latch from the glove box assembly.
INSTALLATION
(1) Install the latch onto the glove box assembly.
(2) Assemble the glove box.
(3) Install the assembly screws.
(4) Engage hinge hooks into instrument panel and
pivot glove box upward.
(5) Push in sides of glove box bin and snap glove
box assembly into instrument panel.
(6) Close glove box door.
Fig. 2 CUP HOLDER
1 - LOWER INSTRUMENT PANEL
2 - CUP HOLDER AND TRACK
RSINSTRUMENT PANEL23-63
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GLOVE BOX LATCH STRIKER
REMOVAL
(1) Open glove box door.
(2) Remove screws holding lock striker to instru-
ment panel.
(3) Remove glove box latch striker.
INSTALLATION
(1) Install the glove box latch striker.
(2) Install the screws holding latch striker to
instrument panel.
(3) Close glove box door.
INSTRUMENT PANEL
ASSEMBLY
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the lower console:
(a) Remove six retaining screws.
(b) Pull rearward and disconnect the auxiliary
power outlet.
(c) Remove lower console from vehicle.
(3) Remove the bolts attaching the lower supports
to the instrument panel frame (Fig. 3).
(4) Remove the bolts attaching the lower supports
to the floor pan.
(5) Disconnect the wire connectors from the Pas-
senger Airbag.
(6) Remove the two screws to each right and left
cowl trim covers.
(7) Remove the both left and right side A-pillar
trim covers using a trim stick (special tool #C-4755)
or equivalent gently pry out on the trim covers and
remove.
(8) Remove the glove box:
(a) Push in on sides of glove box bin and lower
door.
(b) Pivot glove box downward and disengage
hinge hooks from instrument panel.
(c) Remove glove box from vehicle.
(9) Disconnect the antenna lead connector from
behind the glove box.
(10) Remove the four screws to the lower steering
column cover.
(11) Remove the eight screws to the steering col-
umn backing plate.
(12) Unclip the Data Link Connector (DLC) from
the steering column backing plate.
(13) Disconnect the left side wiring:
(a) Brake switch.
(b) Main bulkhead connector.(c) Five harness connectors.
(d) Driver airbag connector.
(14) Remove the two screws to the hood release
handle.
(15) Remove five screws to steering column back-
ing plate and remove (Refer to 23 - BODY/INSTRU-
MENT PANEL/KNEE BLOCKER - REMOVAL).
(16) Remove the two steering column shroud
retaining screws. Separate the shrouds and remove
from vehicle.
(17) Remove the screws attaching the instrument
panel reinforcement and remove (Fig. 4).
(18) Disconnect the steering column wiring. There
are seven connectors and then unclip the harness
from the column.
(19) Disconnect the Occupant Restraint Controller
(ORC) harness connector.
(20) Remove the four nuts retaining the steering
column to the dash panel steering column mounting
bracket and lower column to the floor (Fig. 5).
(21) Remove the four nuts attaching the instru-
ment panel to the brake pedal support bracket.
(22) Loosen the left side roll down bolt (Fig. 6).
(23) Remove the left side A-pillar retaining bolts.
There are two 13 mm bolts and one 10 mm bolt.
(24) If equipped with a mechanical transmission
range indicator:
(a) Remove the indicator cable loop.
(b) Remove the clip holding gear shift cable end
to the gear selector adapter.
(c) Pull the cable end from gear selector.
(d) Disconnect the clip for the indicator cable
and guide tube from the shift cable bracket and
move out of the way.
(25) Remove the instrument panel top cover. Using
a trim stick or equivalent, gently pry up on the front
edge of the top cover, pull rearward and remove from
vehicle.
(26) Disconnect the right side wire connectors from
the HVAC behind the glove box area and the two
antenna connectors behind the glove box hinge.
(27) Remove the right end cover by pulling out-
board.
(28) Remove the right side A-pillar retaining bolts.
There are two 13 mm bolts and one 10 mm bolt.
(29) Loosen the right side roll down bolt.
(30) Disconnect the two front window defroster
grid wire connectors. One on each side of vehicle.
(31) Remove both the left and right power mirrors:
(a) Using a trim stick or equivalent, gently pry
out on mirror trim cover.
(b) Open door and remove the three torx retain-
ing screws.
(c) Disconnect the wire connector and remove
mirror from the vehicle.
23 - 64 INSTRUMENT PANELRS
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(32) Feed power mirror wire harness inboard
through the A-pillar.
(33) Remove the bolts attaching the instrument
panel frame to the dash panel below windshield
opening.
(34) With the help of an assistant remove the
instrument panel from vehicle. Lift the instrument
panel up off the HVAC so you won't damage the seal-
ing surface of the distribution duct.
If the instrument panel is being replaced, transfer
all parts to the new instrument panel assembly.
INSTALLATION
(1) With the help of an assistant place the instru-
ment panel into vehicle on roll down bolts. As youroll the instrument panel up, lift the instrument
panel up so the duct work does not bind or bend and
you can set it down on the HVAC housing to get the
proper seal at the distribution duct. Get one bolt
started in the dash panel.
(2) Install the left and right side A-pillar retaining
bolts. There are two 13 mm bolts and one 10 mm
bolt. The 10 mm bolts need to be installed first to
insure proper positioning of the Instrument panel in
the vehicle. Start the right side 10 mm bolt first (Fig.
6).
(3) Feed power mirror wire harness outboard
through the A-pillar.
(4) Install both the left and right power mirrors:
(a) Connect the wire connector and install the
mirror onto the vehicle.
(b) Install the three torx retaining screws.
(c) Using a firm push, snap the mirror trim
cover into place.
(5) Connect the two front window defroster grid
wire connectors. One on each side of vehicle.
(6) Tighten the right side roll down bolt.
(7) Install the right end cover. Position over retain-
ing slots and firmly snap into place.
(8) Connect the right side wire connectors to the
HVAC behind the glove box area and the two
antenna connectors behind the glove box hinge.
(9) Install the bolts attaching the instrument
panel frame to the dash panel below windshield
opening.
(10) Install the instrument panel top cover. Slide
the front edge of the top cover toward dash panel,
and firmly snap down the rear edge of the to cover to
engage clips.
Fig. 3 INSTRUMENT PANEL CENTER STACK RIGHT
& LEFT REINFORCEMENTS
1 - INSTRUMENT PANEL
2 - CENTER STACK RIGHT & LEFT REINFORCEMENT
Fig. 4 INSTRUMENT PANEL LOWER
REINFORCEMENT
1 - LOWER RIGHT REINFORCEMENT
2 - STEERING WHEEL ASSEMBLY
Fig. 5 STEERING COLUMN MOUNTING BRACKET
1 - INSTRUMENT PANEL
2 - INSTRUMENT PANEL STEERING BRACKET
3 - DASH PANEL REINFORCEMENT
4 - DASH PANEL STEERING COLUMN MOUNTING BRACKET
RSINSTRUMENT PANEL23-65
INSTRUMENT PANEL ASSEMBLY (Continued)
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Page 1799 of 2177
(11) If equipped with a mechanical transmission
range indicator:
(a) Connect the clip for the indicator cable and
guide tube to the shift cable bracket.
(b) Install the cable end to the gear selector.
(c) Install the clip holding the gear shift cable
end to the gear selector adapter.
(d) Install the indicator cable loop.
(12) Tighten the left side roll down bolt.
(13) Install the four nuts attaching the instrument
panel to the brake pedal support bracket.
(14) Install the four nuts retaining the steering
column and lower to the floor (Fig. 5).
(15) Connect the Occupant Restraint Controller
(ORC) harness connector.
(16) Connect the steering column wiring. There
are seven connectors and then clip the harness to the
column.
(17) Install the screws attaching the instrument
panel reinforcement (Fig. 4).
(18) Connect the shrouds and install the two steer-
ing column shroud retaining screws.
(19) Install five screws to the left under column
instrument panel reinforcement brace.
(20) Install the two screws to the hood release
handle.
(21) Connect the left side wiring:
(a) Brake switch.
(b) Main bulkhead connector.(c) Five harness connectors.
(d) Driver airbag connector.
(22) Clip the Data Link Connector (DLC) to the
steering column backing plate.
(23) Install the eight screws to the steering column
backing plate.
(24) Install the four screws to the lower steering
column cover.
(25) Install the glove box:
(a) Install glove box into the vehicle. Line up the
hinges and firmly snap together.
(b) Push in on sides of glove box bin and raise
door.
(26) Install the both left and right side A-pillar
trim covers. Position trim cover over slots and firmly
snap into place.
(27) Install the two screws to each right and left
cowl trim covers.
(28) Connect the wire connectors to the Passenger
Airbag.
(29) Install the bolts attaching the lower supports
to the floor pan.
(30) Install the bolts attaching the lower supports
to the instrument panel frame (Fig. 3).
(31) Install the lower console:
(a) Install lower console to vehicle.
(b) Connect the auxiliary power outlet.
(c) Install the six retaining screws.
(32) Connect the battery negative cable.
Fig. 6 INSTRUMENT PANEL REMOVAL
1 - INSTRUMENT PANEL
2 - FIVE ATTACHING SCREWS
3 - 13 mm BOLT - TWO ON EACH SIDE4 - ROLL DOWN BRACKET
5 - 10 mm BOLT - STARTING BOLT ONE EACH SIDE
23 - 66 INSTRUMENT PANELRS
INSTRUMENT PANEL ASSEMBLY (Continued)
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Page 1801 of 2177
(2) Push top cover forward to engage hooks attach-
ing front of top cover to instrument panel.
(3) Engage clips attaching rear edge of top cover to
instrument panel.
(4) Pull top cover rearward.
(5) Install A-pillar trim.
LOWER CONSOLE
REMOVAL
(1) Remove screws attaching the lower console to
floor bracket and instrument panel (Fig. 10).
(2) Slide lower console rearward from around
instrument panel supports.
(3) Disconnect the auxiliary power outlet wire con-
nector (if equipped).
(4) Remove lower console from vehicle.
INSTALLATION
(1) Connect the auxiliary power outlet wire con-
nector (if equipped).
(2) Install the lower console into the vehicle (Fig.
10).
(3) Slide console forward around instrument panel
supports.
(4) Install the screws attaching lower console to
floor bracket and instrument panel.
LOWER INSTRUMENT PANEL
REMOVAL
When servicing the lower instrument panel, refer
to Body, Instrument Panel, and then the appropriate
removal procedure.
(1) Remove the right end cover.
(2) Remove the lower steering column cover.
(3) Remove the center bezel.
(4) Remove the lower console.
(5) Remove the cup holder and track.
(6) Remove the glove box.
(7) Remove the glove box latch striker.
(8) Remove the glove box lamp.
(9) Remove the eighteen screws holding the lower
instrument panel to the reinforcement frame (Fig.
11).
(10) Remove the lower instrument panel from
vehicle.
INSTALLATION
When servicing the lower instrument panel, refer
to Body, Instrument Panel, and then the appropriate
removal procedure.
(1) Install the lower instrument panel into the
vehicle (Fig. 11).
(2) Install the eighteen screws holding the lower
instrument panel to the reinforcement frame.
(3) Install the glove box lamp.
(4) Install the glove box latch striker.
(5) Install the glove box.
(6) Install the cup holder and track.
(7) Install the lower console.
Fig. 9 INSTRUMENT PANEL TOP COVER
1 - INSTRUMENT PANEL TOP COVER
2 - INSTRUMENT PANEL
Fig. 10 INSTRUMENT PANEL FLOOR CONSOLE
1 - INSTRUMENT PANEL
2 - INSTRUMENT PANEL FLOOR CONSOLE
23 - 68 INSTRUMENT PANELRS
INSTRUMENT PANEL TOP COVER (Continued)
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Page 1803 of 2177
INSTRUMENT PANEL TOP PAD
ASSEMBLY
REMOVAL
(1) Remove the instrument cluster (Fig. 14). (Refer
to 8 - ELECTRICAL/INSTRUMENT CLUSTER -
REMOVAL)
(2) Remove the message center (Fig. 14). (Refer to
8 - ELECTRICAL/MESSAGE CENTER - REMOVAL)
(3) Remove the radio (Fig. 14). (Refer to 8 - ELEC-
TRICAL/AUDIO/RADIO - REMOVAL)
(4) Remove the headlamp switch (Fig. 14). (Refer
to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERI-
OR/HEADLAMP SWITCH - REMOVAL)
(5) Remove the lower console (Fig. 14). (Refer to 23
- BODY/INSTRUMENT PANEL/LOWER CONSOLE
- REMOVAL)
(6) Remove the lower panel. (Refer to 23 - BODY/
INSTRUMENT PANEL/LOWER INSTRUMENT
PANEL TRIM - REMOVAL)
(7) Remove the instrument panel assembly. (Refer
to 23 - BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL ASSEMBLY - REMOVAL)
(8) Remove the instrument panel speakers.
(9) Remove the glove box light.
(10) Remove the two passenger air bag mounting
bolts (Fig. 15).
(11) Loosen the three passenger air bag support
bracket bolts to the hydro-form rail (Fig. 15).
(12) Remove the 16 screws along the upper edge of
the pad & panel assembly.
(13) Remove the 19 screws along the lower edge of
the pad & panel assembly.
(14) Remove the pad and panel assembly (Fig. 14).
INSTALLATION
(1) Position the pad & panel assembly onto the
instrument panel support structure.
Fig. 13 OVER STEERING COLUMN COVER
1 - INSTRUMENT PANEL OVER STEERING COLUMN COVER
2 - INSTRUMENT PANEL
Fig. 14 INSTRUMENT PANEL ASSEMBLY
1 - INSTRUMENT CLUSTER
2 - MESSAGE CENTER
3 - TOP COVER
4 - PAD AND PANEL ASSEMBLY
5 - LOWER CONSOLE
6 - LOWER PANEL
7 - RADIO
8 - HEADLAMP SWITCH
Fig. 15 AIRBAG MOUNTING HARDWARE
1 - AIR BAG SCREWS (2)
2 - ELECTRICAL CONNECTOR
3 - AIR BAG SUPPORT BRACKET BOLTS (3)
4 - HYDRO-FORM INSTRUMENT PANEL SUPPORT RAIL
23 - 70 INSTRUMENT PANELRS
OVER STEERING COLUMN COVER (Continued)
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Page 1804 of 2177
(2) Install the 19 screws along the lower edge of
the pad & panel assembly.
(3) Install the 16 screws along the upper edge of
the pad & panel assembly.
(4) Install and tighten the two passenger air bag
mounting screws.
(5) Tighten the three passenger air bag support
bracket bolts to the hydro-form tube.
(6) Install the glove box light.
(7) Install the instrument panel speakers.
(8) Install the instrument panel assembly. (Refer
to 23 - BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL ASSEMBLY - INSTALLATION)
(9) Install the lower panel. (Refer to 23 - BODY/
INSTRUMENT PANEL/LOWER INSTRUMENT
PANEL TRIM - INSTALLATION)(10) Install the lower console. (Refer to 23 - BODY/
INSTRUMENT PANEL/LOWER CONSOLE -
INSTALLATION)
(11) Install the headlamp switch. (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
HEADLAMP SWITCH - INSTALLATION)
(12) Install the radio. (Refer to 8 - ELECTRICAL/
AUDIO/RADIO - INSTALLATION)
(13) Install the message center. (Refer to 8 -
ELECTRICAL/MESSAGE CENTER - INSTALLA-
TION)
(14) Install the instrument cluster. (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER - INSTAL-
LATION)
RSINSTRUMENT PANEL23-71
INSTRUMENT PANEL TOP PAD ASSEMBLY (Continued)
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²air recirculation button. The Recirculate button
contains an LED that illuminates to show when the
function is in operation.
²an air conditioning button that allows the com-
pressor to be turned on/off. The Snowflake button
contains an LED that illuminates to shown when the
function is in operation.
²rotary knobs for front and rear fan speed selec-
tion.
²a rotary knob for mode control.
REAR CONTROL PANEL
A rear control panel centrally mounted on the
headliner has a rotary adjustment for temperature
and fan speed control of the rear unit by intermedi-
ate seat passengers when the front control rear knob
is set to the rear position.
DESCRIPTION - AUTOMATIC TEMPERATURE
CONTROL
The Automatic Temperature Control (ATC) allows
occupants to select a comfort temperature, which is
the perceived temperature level not the actual pas-
senger compartment air temperature.
The Automatic Temperature Control system
includes a dust and odor air filter. The filter element
is the same size as the air conditioning evaporator to
ensure ample capacity. A door at the base of the
heater and air conditioning housing below the glove
box provides easy access to the filter element.
The ATC computer utilizes integrated circuitry and
information carried on the Programmable Communi-
cations Interface (PCI) data bus network to monitor
many sensors and switch inputs throughout the vehi-
cle. In response to those inputs, the internal circuitry
and programming of the ATC computer allow it to
control electronic functions and features of the ATC
system. The inputs to the ATC computer are:
²Vehicle Speed/Engine RPM± The ATC com-
puter monitors engine RPM, vehicle speed and Man-
ifold Absolute Pressure information from the PCM.
²Coolant Temperature± ATC computer moni-
tors Coolant temperature received from the PCM and
converts it to degrees Fahrenheit.
²Ambient Temperature± ATC computer moni-
tors Ambient temperature from the Compass Mini
Trip Computer (CMTC) and converts it to degrees
Fahrenheit.
²Engine Miscellaneous Sensor Status±ATC
computer monitors A/C disable information from the
PCM.
²Refrigerant Pressure± ATC computer moni-
tors Barometric Pressure, Intake Air Temperature,
High Side Pressure and Methanol Content as broad-
cast by the PCM.²Door Ajar Status± The ATC computer moni-
tors Driver Front Door, Passenger Front Door, Left
Rear Door, Right Rear Door and Liftgate ajar infor-
mation, as identified by the Body Control Module
(BCM), to determine if all in-car temperatures should
be maintained.
²Dimming± The ATC computer monitors dim-
ming status from the BCM to determine the required
level of brightness and will dim accordingly.
²Vehicle Odometer± The ATC computer moni-
tors the vehicle odometer information from the BCM
to prevent flashing the VF tube icons if the manual
motor calibration or manual cool down tests have
failed. Flashing of the display icons will cease when
the vehicle odometer is greater than 3 miles.
²English/Metric± The ATC computer monitors
the English/Metric information broadcast by the
CMTC. The set temp displays for both the front and
rear control heads will be set accordingly.
²Vehicle Identification Number± The ATC
computer monitors the last eight characters of the
VIN broadcast by the PCM and compares it to the
information stored in EEPROM. If it is different, the
new number will be stored over the old one and a
motor calibration shall be initiated.
²A/C System Information± The ATC computer
will send a message for Evaporator Temperature too
Low, Fan Blower Relay status, Evaporator Sensor
Failure, Rear Window Defogger Relay and A/C Select.
FRONT CONTROL PANEL
The front control panel and integral computer is
mounted in the instrument panel.
The instrument panel mounted control and inte-
gral computer contains:
²A power button which allows the system to be
completely turned off. The display is blank when the
system is off.
²Three rocker switches that select comfort tem-
peratures from 15É to 30É C (59É to 85É F), which are
shown in the vacuum-fluorescent digital control dis-
play. If the set temp is 59 and the down button is
pressed, the set temp value will become 55 but the
display will show LO. If the set temp is 85 and the
up button is pressed, the set temp value will become
90 but the display will show HIGH. Temperatures
can be displayed in either metric or Fahrenheit,
which is controlled from the overhead console.
²A rocker switch that selects a cool-down rate.
LO-AUTO or HI-AUTO are displayed when the sys-
tem is in automatic operation.
²A defroster button which turns on the defroster
independently during full automatic control. A
defroster symbol illuminates in the display when the
button is pressed.
24 - 2 HEATING & AIR CONDITIONINGRS
HEATING & AIR CONDITIONING (Continued)
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