Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual — part 730
NOTE: Care must be taken not to pinch the wire
harness with the retaining clip when tightening the
retaining screw.
(3) Install the screw that secures the clutch coil
wire harness retainer clip to the compressor front
housing. Tighten the screw securely.
(4) Align the pulley and bearing assembly squarely
onto the compressor front housing hub.
(5) Install the pulley and bearing assembly onto
the compressor front housing hub with installer (Spe-
cial Tool 6871) (Fig. 17). Thread the installer onto the
compressor shaft, then turn the installer nut until
the pulley and bearing assembly is seated against
the compressor front housing.
CAUTION: If the snap ring is not fully seated in the
groove it will vibrate out, resulting in a clutch fail-
ure and severe damage to the front housing of the
compressor.
NOTE: Install the snap ring with the beveled side of
the snap ring facing outward.
(6) Install the snap ring that secures the pulley
and bearing assembly to the compressor. Press the
snap ring to make sure it is properly seated in the
groove.
(7) Verify that there is adequate clearance between
the clutch field coil wire and the clutch pulley.
NOTE: When installing an original, or a new clutch
assembly, try the original shims first. When install-
ing a clutch onto a compressor that previously did
not have a clutch, use 1.0, 0.50, and 0.13 millimeter
(0.040, 0.020, and 0.005 inch) shims from the clutch
hardware package that is provided with the new
clutch.
(8) Install the clutch shims onto the compressor
shaft.
NOTE: A distinct change of sound during the clutch
plate tapping process indicates that the clutch plate
has bottomed out against the compressor clutch
shims.
(9) Install the clutch plate using driver (Special
Tool 6463 in Kit 6460) (Fig. 18). Tap the clutch plate
over the compressor shaft until it has bottomed
against the clutch shims.
(10) Install the clutch nut onto the compressor
shaft. Tighten the nut to 17.5 N·m (155 in. lbs.).
(11) Check the clutch air gap with a feeler gauge
(Fig. 19). If the air gap does not meet the specifica-
tion, add or subtract shims as required. The air gap
specification is 0.33 to 0.63 millimeter (0.013 to 0.025
inch).
(12) Position the A/C compressor onto the mount-
ing bracket.
(13) Install the bolts that secure the A/C compres-
sor to the mounting bracket. Tighten the bolts to 28
N·m (20 ft. lbs.).
(14) Connect the wire harness to the compressor
clutch field coil connector.
(15) Lower the vehicle.
Fig. 17 A/C Clutch Pulley Installer
1 - PULLEY AND BEARING ASSEMBLY
2 - INSTALLER
Fig. 18 A/C Clutch Plate and Driver
1 - CLUTCH PLATE
2 - DRIVER
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24 - 19
A/C COMPRESSOR CLUTCH (Continued)
(16) Install the accessory drive belt (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
INSTALLATION).
(17) Reconnect the negative battery cable.
(18) Perform the Clutch Break-in Procedure (Refer
to 24 - HEATING & AIR CONDITIONING/CON-
TROLS/A/C COMPRESSOR CLUTCH - STANDARD
PROCEDURE).
A/C CLUTCH RELAY
DESCRIPTION
The A/C compressor clutch relay (Fig. 20) is a
International Standards Organization (ISO) micro-re-
lay. Relays conforming to the ISO specifications have
common physical dimensions, current capacities, ter-
minal functions and patterns. The ISO micro-relay
terminal functions are the same as a conventional
ISO relay. However, the ISO micro-relay terminal
pattern (or footprint) is different, the current capac-
ity is lower, and the physical dimensions are smaller
than those of the conventional ISO relay.
The A/C compressor clutch relay is located in the
power distribution center (PDC) in the engine com-
partment.
OPERATION
The A/C clutch relay is an electromechanical
switch that uses a low current input from the power-
train control module (PCM) to control the high cur-
rent output to the A/C clutch electromagnetic field
coil. The movable common feed contact point is held
against the fixed normally closed contact point by
spring pressure. When the relay coil is energized, an
electromagnetic field is produced by the coil wind-
ings. This electromagnetic field draws the movable
relay contact point away from the fixed normally
closed contact point, and holds it against the fixed
normally open contact point. When the relay coil is
de-energized, spring pressure returns the movable
contact point back against the fixed normally closed
contact point. The resistor or diode is connected in
parallel with the relay coil in the relay, and helps to
dissipate voltage spikes and electromagnetic interfer-
ence that can be generated as the electromagnetic
field of the relay coil collapses.
The A/C clutch relay terminals are connected to
the vehicle electrical system through a receptacle in
the power distribution center (PDC). The inputs and
outputs of the A/C clutch relay include:
• The common feed terminal (64) receives a bat-
tery current input from fuse 12 (40 amp) in the PDC
through a fused B(+) circuit at all times.
• The coil ground terminal (60) receives a ground
input from the PCM through the compressor clutch
relay control circuit only when the PCM electroni-
cally pulls the control circuit to ground.
• The coil battery terminal (62) receives a battery
current input from fuse 23 (20 amp) in the PDC
through a fused ignition switch output (run-start) cir-
cuit only when the ignition switch is in the On or
Start positions.
• The normally open terminal (63) provides a bat-
tery current output to the compressor clutch coil
through the compressor clutch relay output circuit
Fig. 19 A/C Clutch Air Gap
1 - FEELER GAUGE
Fig. 20 A/C Compressor Clutch Micro-Relay
24 - 20
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A/C COMPRESSOR CLUTCH (Continued)
only when the compressor clutch relay coil is ener-
gized.
• The normally closed terminal is not connected to
any circuit in this application, but provides a battery
current output only when the compressor clutch relay
coil is de-energized.
The
A/C
compressor
clutch
relay
cannot
be
repaired and, if faulty or damaged, it must be
replaced. Refer to the appropriate wiring information
for diagnosis and testing of the micro-relay and for
complete HVAC wiring diagrams.
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) Open the cover of the power distribution center
(PDC) located in the engine compartment (Fig. 21).
NOTE: Refer to the fuse and relay layout map on
the inner surface of the PDC cover for A/C clutch
relay identification and location.
(3) Remove the A/C clutch relay from the PDC.
INSTALLATION
NOTE: Refer to the fuse and relay layout map on
the inside of the power distribution center (PDC)
cover for A/C clutch relay location.
(1) Position the A/C clutch relay into the receptacle
of the PDC.
(2) Align the A/C clutch relay terminals with the
terminal cavities in the PDC receptacle and push
down firmly on the relay until the terminals are fully
seated.
(3) Close the cover of the PDC.
(4) Reconnect the negative battery cable.
A/C HEATER CONTROL
DESCRIPTION
Both the manual temperature control (MTC) and
the automatic temperature control (ATC) heating-A/C
systems use electrical controls. These controls pro-
vide the vehicle operator with a number of setting
options to help control the climate and comfort
within the vehicle.
The A/C-heater control for the MTC system (Fig.
22) or ATC system (Fig. 23) is located to the right of
the instrument cluster on the instrument panel.
The MTC A/C-heater control panel contains a rota-
ry-type temperature control switch, a rotary-type
mode control switch and a rotary-type blower motor
speed switch. The A/C-heater control also has a push
button to activate the rear window defogger (EBL)
system and to turn the A/C on.
Fig. 21 A/C Compressor Clutch Relay
1 - FRONT FENDER
2 - POWER DISTRIBUTION CENTER (PDC)
Fig. 22 Manual A/C-Heater Control
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24 - 21
A/C CLUTCH RELAY (Continued)
The ATC A/C-heater control panel contains push-
button mode and temperature control switches and a
rotary-type blower motor speed switch. The A/C-
heater control also has a push button to activate the
rear window defogger (EBL) system and to turn the
A/C on.
The A/C-heater control cannot be repaired and, if
faulty or damaged, it must be replaced. The illumi-
nation lamps for the A/C-heater control are available
for service replacement.
REMOVAL
WARNING: On vehicles equipped with airbags, dis-
able the airbag system before attempting any steer-
ing wheel, steering column, or instrument panel
component diagnosis or service. Disconnect and
isolate the battery negative (ground) cable, then
wait two minutes for the airbag system capacitor to
discharge before performing further diagnosis or
service. This is the only sure way to disable the air-
bag system. Failure to take the proper precautions
could result in an accidental airbag deployment and
possible personal injury or death.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the center bezel from the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
INSTRUMENT
PANEL
CENTER
BEZEL
-
REMOVAL).
(3) Place the center bezel on a workbench and
remove the six screws that secure the A/C-heater
control to the center bezel (Fig. 24).
(4) Remove the A/C-heater control from the center
bezel.
INSTALLATION
(1) Position the A/C-heater control into the instru-
ment panel center bezel.
(2) Install the six screws that secure the A/C-
heater control to the center bezel. Tighten the screws
to 2 N·m (17 in. lbs.).
(3) Install the instrument panel center bezel (Refer
to 23 - BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL CENTER BEZEL - INSTALLATION).
(4) Reconnect the battery negative cable.
Fig. 23 Automatic A/C-Heater Control
Fig. 24 A/C-Heater Control - Typical
1 - SCREW (6)
2 - IP CENTER BEZEL
3 - A/C-HEATER CONTROL
24 - 22
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A/C HEATER CONTROL (Continued)
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