torque CHRYSLER VOYAGER 2005 Owners Manual

IGNITION CONTROL
TABLE OF CONTENTS
page page
IGNITION CONTROL
DESCRIPTION - IGNITION SYSTEM..........1
OPERATION - IGNITION SYSTEM...........1
SPECIFICATIONS
TORQUE.............................2
SPARK PLUG CABLE RESISTANCE........2
SPARK PLUG.........................2
FIRING ORDER........................3
AUTO SHUT DOWN RELAY
DESCRIPTION..........................3
OPERATION............................3
CAMSHAFT POSITION SENSOR
DESCRIPTION..........................4
OPERATION............................4
REMOVAL
REMOVAL - 2.4L.......................5
REMOVAL - 3.3/3.8L....................5
INSTALLATION
INSTALLATION - 2.4L...................6
INSTALLATION - 3.3/3.8L.................6
IGNITION COIL
DESCRIPTION..........................6
OPERATION............................6
REMOVAL
REMOVAL - 2.4L.......................7REMOVAL - 3.3/3.8L....................7
INSTALLATION
INSTALLATION - 2.4L...................7
INSTALLATION - 3.3/3.8L.................8
KNOCK SENSOR
DESCRIPTION..........................8
OPERATION............................8
REMOVAL
REMOVAL - 2.4L.......................8
REMOVAL - 3.8L.......................8
INSTALLATION
INSTALLATION - 2.4L...................8
INSTALLATION - 3.8L...................8
SPARK PLUG
DESCRIPTION
DESCRIPTION - STANDARD 4 CYLINDER . . . 9
DESCRIPTION - PLATINUM PLUGS........9
REMOVAL.............................10
INSTALLATION.........................10
SPARK PLUG CABLE
DESCRIPTION.........................10
REMOVAL - 2.0/2.4L.....................10
INSTALLATION - 2.0/2.4L.................10
IGNITION CONTROL
DESCRIPTION - IGNITION SYSTEM
NOTE: All engines use a fixed ignition timing sys-
tem. Basic ignition timing is not adjustable. All
spark advance is determined by the Powertrain
Control Module (PCM).
The ignition system used on these engines is
referred to as the Direct Ignition System (DIS). The
system's three main components are the coils, crank-
shaft position sensor, and camshaft position sensor. If
equipped with the coil on plug ignition system it uti-
lizes an ignition coil for every cylinder, it is mounted
directly over the each spark plug.
OPERATION - IGNITION SYSTEM
The crankshaft position sensor and camshaft posi-
tion sensor are hall effect devices. The camshaft posi-
tion sensor and crankshaft position sensor generate
pulses that are inputs to the PCM. The PCM deter-
mines engine position from these sensors. The PCM
calculates injector sequence and ignition timing from
crankshaft & camshaft position. For a description of
both sensors, refer to Camshaft Position Sensor and
Crankshaft Position Sensor.
RSIGNITION CONTROL8I-1

SPECIFICATIONS
TORQUE
DESCRIPTION N´m Ft. Lbs. In. Lbs.
2.4L Target Magnet Screw 3 30
2.4L Camshaft Sensor
Screw12.9 115
3.3/3.8L Camshaft Sensor
Screw14.1 125
2.4L Ignition coil bolts 11.8 105
3.3/3.8LIgnition coil bolts 11.8 105
Spark Plugs 17.5 13
Knock Sensor 10 7
SPARK PLUG CABLE RESISTANCE
2.4L
CABLE Maximum Resistance
1, 2, 3, & 4 10.8K ohms
3.3/3.8L
CABLE Maximum Resistance
#1 22.5K ohms
#2 22.8K ohms
#3 19.3K ohms
#4 19.3K ohms
#5 13.6K ohms
#6 16.4K ohms
SPARK PLUG
Engine Spark Plug Gap Thread Size
2.4L RE14MCC5 0.048 TO 0.053 14mm (1 in.) reach
Engine Spark Plug Gap Thread Size
3.3L RE14PLP5 0.048 TO 0.053 14mm (1 in.) reach
3.8L RE14PLP5 0.048 TO 0.053 14mm (1 in. ) reach
8I - 2 IGNITION CONTROLRS
IGNITION CONTROL (Continued)

(6) Pull sensor up out of the chain case cover.Do
not pull on the sensor wiring.There is an O-ring
on the body of the sensor. The O-ring may make
removal difficult. A light tap to top of sensor prior to
removal may reduce force needed for removal.
INSTALLATION
INSTALLATION - 2.4L
The target magnet has locating dowels that fit into
machined locating holes in the end of the camshaft
(Fig. 7).
(1) Install target magnet in end of camshaft.
Tighten mounting screw to 3 N´m (30 in. lbs.) torque.
Over torqueing could cause cracks in magnet. If mag-
net cracks replace it.
(2) Install camshaft position sensor. Tighten sensor
mounting screws to 12.9 N´m (115 in. lbs.) torque.
(3) Carefully attach electrical connector to cam-
shaft position sensor.
(4) Connect the negative battery cable.
INSTALLATION - 3.3/3.8L
If the removed sensor is reinstalled, clean off
the old spacer on the sensor face. A NEW
SPACER must be attached to the face before
installation.Inspect O-ring for damage, replace if
necessary. If the sensor is being replaced, confirm
that the paper spacer is attached to the face and
O-ring is positioned in groove of the new sensor (Fig.
8).
(1) Apply a couple drops of clean engine oil to the
O-ring prior to installation.
(2) Install sensor in the chain case cover and
rotate into position.(3) Push sensor down until contact is made with
the camshaft gear. While holding the sensor in this
position, install and tighten the retaining bolt 14
N´m (125 in. lbs.) torque.
(4) Connect camshaft position sensor electrical
connector to harness connector.
(5) Install the air box cover and inlet hose (Fig. 5).
(6) Connect the negative battery cable.
IGNITION COIL
DESCRIPTION
The ignition coil assembly consists of 2 or 3 inde-
pendent coils molded together (Fig. 9) or (Fig. 10).
The coil assembly for the 3.3/3.8L is mounted on the
intake manifold. The coil assembly for the 2.4L is
mounted on the cylinder head cover. Spark plug
cables route to each cylinder from the coil.
OPERATION
The coil fires two spark plugs every power stroke.
One plug is the cylinder under compression, the
other cylinder fires on the exhaust stroke. The Pow-
ertrain Control Module (PCM) determines which of
the coils to charge and fire at the correct time.
The Auto Shutdown (ASD) relay provides battery
voltage to the ignition coil. The PCM provides a
ground contact (circuit) for energizing the coil. When
the PCM breaks the contact, the magnetic energy in
the coil transfers to the secondary causing the spark.
The PCM will de-energize the ASD relay if it does
not receive the crankshaft position sensor and cam-
shaft position sensor inputs. Refer to Auto Shutdown
(ASD) RelayÐPCM Output, in this section for relay
operation.
Fig. 7 Target Magnet Installation
1 - LOCATING DOWELS
2 - LOCATING HOLES (2)
Fig. 8 Camshaft Position Sensor and Spacer
1 - ELECTRICAL CONNECTOR
2 - O-RING
3 - PAPER SPACER
8I - 6 IGNITION CONTROLRS
CAMSHAFT POSITION SENSOR (Continued)

INSTALLATION - 3.3/3.8L
(1) Install coil over studs on bracket.
(2) Install 2 nuts to the ignition coil studs. Tighten
nuts and bolts.
(3) Connect the electrical connector to the ignition
coil.
(4) Install the ignition cables to the ignition coil.
(5) Reposition the Power steering reservoir. Slide
bracket over the mounting stud (Fig. 11).
(6) Install 2 bolts to the Power steering reservoir
to intake manifold.
(7) Tighten the lower nut to stud on ignition coil
bracket.
(8) Install the throttle and speed control cables to
clip.
(9) Connect the negative battery cable.
KNOCK SENSOR
DESCRIPTION
The knock sensor threads into the cylinder block.
The knock sensor is designed to detect engine vibra-
tion that is caused by detonation.
OPERATION
When the knock sensor detects a knock in one of
the cylinders, it sends an input signal to the PCM. In
response, the PCM retards ignition timing for all cyl-
inders by a scheduled amount.
Knock sensors contain a piezoelectric material
which constantly vibrates and sends an input voltage
(signal) to the PCM while the engine operates. As the
intensity of the crystal's vibration increases, the
knock sensor output voltage also increases.
The voltage signal produced by the knock sensor
increases with the amplitude of vibration. The PCM
receives as an input the knock sensor voltage signal.
If the signal rises above a predetermined level, the
PCM will store that value in memory and retard
ignition timing to reduce engine knock. If the knock
sensor voltage exceeds a preset value, the PCM
retards ignition timing for all cylinders. It is not a
selective cylinder retard.
The PCM ignores knock sensor input during engine
idle conditions. Once the engine speed exceeds a
specified value, knock retard is allowed.
Knock retard uses its own short term and long
term memory program.
Long term memory stores previous detonation
information in its battery-backed RAM. The maxi-
mum authority that long term memory has over tim-
ing retard can be calibrated.
Short term memory is allowed to retard timing up
to a preset amount under all operating conditions (as
long as rpm is above the minimum rpm) except WOT.The PCM, using short term memory, can respond
quickly to retard timing when engine knock is
detected. Short term memory is lost any time the
ignition key is turned off.
NOTE: Over or under tightening affects knock sen-
sor performance, possibly causing improper spark
control.
REMOVAL
REMOVAL - 2.4L
The knock sensor threads into the side of the cyl-
inder block in front of the starter (Fig. 12).
(1) Disconnect electrical connector from knock sen-
sor.
(2) Use a crow foot socket to remove the knock
sensors.
REMOVAL - 3.8L
The knock sensor threads into the side of the cyl-
inder block in the rear.
(1) Disconnect the negative battery cable.
(2) Raise vehicle and support.
(3) On All Wheel Drive vehicles remove the PTU
(Power Transfer Unit), refer to the Transmission sec-
tion for more information.
(4) Disconnect electrical connector from knock sen-
sor.
(5) Use a crow foot socket to remove the knock
sensor.
INSTALLATION
INSTALLATION - 2.4L
The knock sensor threads into the side of the cyl-
inder block in front of the starter (Fig. 12).
(1) Install knock sensor. Tighten knock sensor to
10 N´m (7 ft. lbs.) torque.Over or under tighten-
ing effects knock sensor performance, possibly
causing improper spark control.
(2) Attach electrical connector to knock sensor.
INSTALLATION - 3.8L
The knock sensor threads into the side of the cyl-
inder block in the rear.
(1) Install knock sensor. Tighten knock sensor to
10 N´m (7 ft. lbs.) torque.Over or under tighten-
ing effects knock sensor performance, possibly
causing improper spark control.
(2) Attach electrical connector to knock sensor.
(3) On All Wheel Drive vehicles install the PTU
(Power Transfer Unit) for the rear wheels, refer to
the Transmission section for more information.
8I - 8 IGNITION CONTROLRS
IGNITION COIL (Continued)

REMOVAL
When replacing the spark plugs and spark plug
cables, route the cables correctly and secure them in
the appropriate retainers. Failure to route the cables
properly can cause the radio to reproduce ignition
noise, cross ignition of the spark plugs orshort cir-
cuit the cables to ground.
Always remove cables by grasping at the boot,
rotating the boot 1/2 turn, and pulling straight back
in a steady motion.
(1) Prior to removing the spark plug, spray com-
pressed air around the spark plug hole and the area
around the spark plug.
(2) Remove the spark plug using a quality socket
with a foam insert.
(3) Inspect the spark plug condition.
INSTALLATION
When replacing the spark plugs and spark plug
cables, route the cables correctly and secure them in
the appropriate retainers. Failure to route the cables
properly can cause the radio to reproduce ignition
noise, cross ignition of the spark plugs orshort cir-
cuit the cables to ground.
(1) Coat threads of spark plug with anti-seize. Be
sure not to get anti-seizeANYWHERE BUT ON
THE THREADS OF THE SPARK PLUG as
shown in (Fig. 13).
(2) To avoid cross threading, start the spark plug
into the cylinder head by hand.
(3) Tighten spark plugs to 17.5 N´m (13 ft. lbs.)
torque.
(4) Install spark plug cables over spark plugs. A
click will be heard and felt when the cable properly
attaches to the spark plug.
SPARK PLUG CABLE
DESCRIPTION
Spark Plug cables are sometimes referred to as
secondary ignition wires. The wires transfer electri-
cal current from the ignition coil pack to individualspark plugs at each cylinder. The resistive spark plug
cables are of nonmetallic construction. The cables
provide suppression of radio frequency emissions
from the ignition system.
Check the spark plug cable connections for good
contact at the coil, and spark plugs. Terminals should
be fully seated. The insulators should be in good con-
dition and should fit tightly on the coil, and spark
plugs. Spark plug cables with insulators that are
cracked or torn must be replaced.
Clean Spark Plug cables with a cloth moistened
with a non-flammable solvent. Wipe the cables dry.
Check for brittle or cracked insulation. The spark
plug cables and spark plug boots are made from high
temperature materials.
REMOVAL - 2.0/2.4L
Failure to route the cables properly could cause the
radio to reproduce ignition noise, cross ignition of the
spark plugs or short circuit the cables to ground.
Remove spark plug cable from coil first.
Always remove the spark plug cable by grasping
the top of the spark plug insulator, turning the boot
1/2 turn and pulling straight up in a steady motion.
INSTALLATION - 2.0/2.4L
Failure to route the cables properly could cause the
radio to reproduce ignition noise, cross ignition of the
spark plugs or short circuit the cables to ground.
Install spark plug insulators over spark plugs.
Ensure the top of the spark plug insulator covers the
upper end of the spark plug tube, then connect the
other end to coil pack.
8I - 10 IGNITION CONTROLRS
SPARK PLUG (Continued)

(2) Connect the EVIC, CMTC or CT electronic
module and the reading/courtesy lamps electrical
connector.
(3) Using your fingertips, grasp the sides of the
overhead console and push straight up evenly to
engage the two snap clips at the rear of the unit.
CAUTION: DO NOT PRESS ON THE SUNGLASS
STORAGE BIN DOOR. DAMAGE TO THE DOOR MAY
RESULT.
(4) Install the overhead console retaining screw,
located in the front of console. Torque the screw to
1.2 N´m (10 in. lbs.).
(5) Connect the remote negative battery cable.
SPECIAL TOOLS
OVERHEAD CONSOLE
ELECTRONIC VEHICLE INFO
CENTER
DESCRIPTION
The Electronic Vehicle Information Center (EVIC)
is located in the overhead console. The EVIC features
a large Vacuum Fluorescent Display (VFD) screen for
displaying information, and back-lit push button
switches labeled C/T (compass/thermometer), RESET,
STEP, and MENU. The EVIC module contains a cen-
tral processing unit and interfaces with other elec-
tronic modules in the vehicle over the Programmable
Communications Interface (PCI) data bus circuit.
The EVIC ªMenuº push button provides the vehicle
operator with a user interface, which allows the
selection of several optional customer programmable
electronic features to suit individual preferences.
(Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE/
ELECTRONIC VEHICLE INFO CENTER - STAN-
DARD PROCEDURE - ELECTRONIC VEHICLE
INFORMATION CENTER PROGRAMMING).
If the vehicle is equipped with the optional univer-
sal transmitter transceiver, the EVIC will also dis-
play messages and an icon indicating when the
universal transmitter transceiver is being trained,
which of the three transmitter buttons is transmit-
ting, and when the transceiver is cleared.Data input for all EVIC functions, including VFD
dimming level, is received through the PCI data bus
circuit. The EVIC module uses its internal program-
ming and all of its data inputs to calculate and dis-
play the requested data. If the data displayed is
incorrect, perform the SELF - DIAGNOSTIC TEST
(Refer to 8 - ELECTRICAL/OVERHEAD CONSOLE -
DIAGNOSIS AND TESTING). If these tests prove
inconclusive, the use of a DRBIIItscan tool and the
proper diagnostic procedures information are recom-
mended for further testing of the EVIC module and
the PCI data bus circuit.
The EVIC module cannot be repaired, and is avail-
able for service only as a unit. This unit includes the
plastic module and display lens. If any of these com-
ponents is faulty or damaged, the complete EVIC
module must be replaced.
OPERATION
The Electronic Vehicle Information Center (EVIC)
uses both non-switched and ignition switched sources
of battery current so that some of its features remain
operational at any time, while others may only oper-
ate with the ignition switch in the On position. When
the ignition switch is turned to the On position, the
EVIC module Vacuum Fluorescent Display (VFD)
will return to the last function being displayed before
the ignition was turned to the Off position.
The compass/thermometer display is the normal
EVIC display. With the ignition switch in the On
position, momentarily depressing and releasing the
C/T (compass/thermometer) push button switch will
cause the EVIC to return to the compass/thermome-
ter/trip computer display mode from any other mode.
While in the compass/thermometer/trip computer dis-
play mode, momentarily depressing and releasing the
Step push button will step through the available trip
computer display options.
The EVIC trip computer features several functions
that can be reset. The functions that can be reset
are:
²Average fuel economy
²Trip odometer
²Elapsed time
With the ignition switch in the On position and
with one of the functions of the trip computer that
can be reset currently displayed, depressing the
Reset push button twice within four seconds will per-
form a global reset, and all of the trip computer
information that can be reset will be reset to zero.
With the ignition switch in the On position and the
function that is to be reset currently displayed,
momentarily depressing and holding the Reset push
button for one second will perform a local reset, and
only the value of the displayed function will be reset
to zero. A global or local reset will only occur if the
DEGAUSSING TOOL #6029
RSOVERHEAD CONSOLE8M-7
OVERHEAD CONSOLE (Continued)

LATCH
DESCRIPTION
The power cinch/release latch performs the same
features as a manual liftgate latch as well as the
power cinch and / or release capability. A second type
of power latch can also be found on some vehicles,
this latch is designed to perform a power release
only. The power cinch and release capability is
accomplished by an actuator mounted to the leading
edge of the latch assembly. The latch is located in the
lower center of the power liftgate assembly (Fig. 8)
and contains integral pawl and ratchet switches. The
ratchet switch also acts as a liftgate ajar switch. The
power latch assembly can be serviced as a complete
assembly, latch without actuator or just the actuator.
OPERATION
On the power cinch/release latch, the latch
mounted actuator provides the torque required to
close the power liftgate from the secondary to the pri-mary closed and latched position. On the power
cinch/release latch and the power release only latch,
the actuator releases the liftgate from the primary
closed and latched position to the fully unlatched and
movable position.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Open the liftgate and remove the liftgate trim
panel, (Refer to 23 - BODY/DECKLID/HATCH/LIFT-
GATE/TAILGATE/TRIM PANEL - REMOVAL).
(3) Disconnect the power latch electrical connector
(Fig. 9).
(4) Remove the power latch retaining bolts.
(5) Disconnect the liftgate lock cylinder link rod
(Fig. 9) from the key cylinder or latch assembly. To
disconnect from latch, rotate the plastic retaining clip
90 É to unsnap clip from linkrod. Then pull link rod
straight out of latch arm.
(6) Remove the power latch from the vehicle.
Fig. 8 POWER LATCH ORIENTATION
1 - LATCH & ACTUATOR ASSEMBLY
2 - LATCH ELECTRICAL CONNECTOR
3 - LOCK CYLINDER LINK ROD
4 - LIFTGATE LOCK CYLINDER
Fig. 9 POWER LATCH ORIENTATION
1 - LATCH & ACTUATOR ASSEMBLY
2 - LATCH ELECTRICAL CONNECTOR
3 - LOCK CYLINDER LINK ROD
4 - LIFTGATE LOCK CYLINDER
8N - 12 POWER LIFTGATE SYSTEMRS

INSTALLATION
(1) Position the power latch in the vehicle.
(2) Connect the liftgate lock cylinder link rod (Fig.
10) on the cinch latch assembly. Rotate the plastic
retaining clip 90 É to lock retaining clip onto the link
rod.
(3) Connect the link rod on the lock cylinder.
(4) Install three new power latch retaining bolts.
Torque to 10 N´m (90 in. lbs.).
(5) Connect the power latch electrical connector
and secure push pin retainers.
(6) Connect the battery negative cable.
(7) Using an appropriate scan tool, check and
erase any power liftgate control module diagnostic
trouble codes related to the power latch.
(8) Verify power liftgate system and power cinch /
release latch operation. Cycle the power liftgate
through one complete open and close cycle, this will
allow the power liftgate control module to relearn its
cycle with the new components.
(9) Verify power liftgate manual operation. Using
liftgate key rotate the lock cylinder to verify door
operation. Pull door open using exterior liftgate han-
dle / switch.
(10) Install the liftgate trim panel, (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - INSTALLATION).
LATCH ACTUATOR
DESCRIPTION
The power cinch and/or power release latch (Fig.
11) is made possible by a latch actuator attached to
the leading edge of the power latch assembly. This 12
volt latch actuator contains a small drive gear that
meshes with the latch assemblies internal gears to
perform the power cinch close / power release opera-
tions. (Refer to 8 - ELECTRICAL/POWER DOORS/
LATCH - DESCRIPTION) for additional information.
The power cinch/release actuator is serviceable com-
ponent.
OPERATION
During a power close cycle, the power cinch actua-
tor provides the torque required to close the power
liftgate from the secondary to the primary closed and
latched position. During a power open cycle, the
power release actuator releases the liftgate from the
primary closed and latched position to the fully
unlatched and movable position.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
Fig. 10 POWER LATCH ORIENTATION
1 - LATCH & ACTUATOR ASSEMBLY
2 - LATCH ELECTRICAL CONNECTOR
3 - LOCK CYLINDER LINK ROD
4 - LIFTGATE LOCK CYLINDER
Fig. 11 POWER LATCH ORIENTATION
1 - LATCH & ACTUATOR ASSEMBLY
2 - LATCH ELECTRICAL CONNECTOR
3 - LOCK CYLINDER LINK ROD
4 - LIFTGATE LOCK CYLINDER
RSPOWER LIFTGATE SYSTEM8N-13
LATCH (Continued)

(2) Open the liftgate and remove the lower liftgate
trim panel. (Refer to 23 - BODY/DECKLID/HATCH/
LIFTGATE/TAILGATE/TRIM PANEL - REMOVAL).
(3) Disconnect the power latch electrical connector
(Fig. 12).
(4) Remove the three latch retaining bolts.
(5) Grab the latch assembly and unhook the key
cylinder link rod from the key cylinder (Fig. 12).
(6) Place the latch assembly on a bench and locate
the three wires leading from the actuator portion of
the latch assembly.
(7) Disengage the main connector retaining push
pins from the latch actuator housing.
(8) Back the three wires out of the main latch elec-
trical connector.
(9) Flip the latch assembly over and remove the
latch actuator retaining screw(s).
(10) Remove the latch actuator from the latch
assembly.
INSTALLATION
(1) Install the latch actuator onto the latch assem-
bly.
(2) Install the three latch actuator retaining
screws.
(3) Install the three wires in the main latch elec-
trical connector.NOTE: Be certain wires are reinstalled in the correct
wire cavities. Failure to do so could result in dam-
age to the latch actuator. Refer to the appropriate
wiring information for complete circuit schematic or
connector pin-out information.
(4) Secure the main connector retaining push pins
on the latch actuator housing.
(5) Grab the latch assembly and hook the key cyl-
inder link rod on the key cylinder (Fig. 13).
(6) Position the latch and install three new latch
retaining bolts. Torque to 10 N´m (90 in. lbs.).
(7) Connect the power latch electrical connector
(Fig. 13).
(8) Install the lower liftgate trim panel, (Refer to
23 - BODY/DECKLID/HATCH/LIFTGATE/TAIL-
GATE/TRIM PANEL - INSTALLATION).
(9) Connect the battery negative cable.
(10) Using an appropriate scan tool, check and
erase any power liftgate control module diagnostic
trouble codes related to the power latch.
(11) Verify power liftgate system and power cinch /
release latch operation. Cycle the power liftgate
through one complete open and close cycle, this will
allow the power liftgate control module to relearn its
cycle with the new components.
(12) Verify power liftgate manual operation. Using
liftgate key rotate the lock cylinder to verify door
operation. Pull door open using exterior liftgate han-
dle / switch.
Fig. 12 POWER LATCH ORIENTATION
1 - LATCH & ACTUATOR ASSEMBLY
2 - LATCH ELECTRICAL CONNECTOR
3 - LOCK CYLINDER LINK ROD
4 - LIFTGATE LOCK CYLINDER
Fig. 13 POWER LATCH ORIENTATION
1 - LATCH & ACTUATOR ASSEMBLY
2 - LATCH ELECTRICAL CONNECTOR
3 - LOCK CYLINDER LINK ROD
4 - LIFTGATE LOCK CYLINDER
8N - 14 POWER LIFTGATE SYSTEMRS
LATCH ACTUATOR (Continued)

LIFTGATE MOTOR
DESCRIPTION
The gear motor assembly (Fig. 14) consists of a DC
motor, hall effect sensor, engage actuator, full open
switch, lift gear, aluminum housing, drive gears and
wire harness. The gears and motor portion of the
assembly provides the power and torque required to
open or close the liftgate. The hall effect sensor is used
to provide the liftgate control module with a speed read-
ing, which is used to monitor the resistance of liftgate
travel. This speed reading also allows the power liftgate
control module to detect obstructions and move the lift-
gate accordingly. The engage actuator is used to toggle
between power open/close mode and full manual mode
when desired. The full open switch is used to let the
power liftgate control module know when the liftgate is
approaching the full open position.
Serviceable components of the power liftgate gear/mo-
tor assembly are the complete gear/motor assembly,
motor and wire harness, lift gear and control rod,
engage actuator, full open switch and the transverse
bracket.
OPERATION
With the push of a power liftgate command switch
(liftgate closed), the power liftgate control module
will signal the latch assembly to release the liftgate
from its primary closed and latched position to the
released and movable position. The liftgate motor-
mounted engage actuator then engages the liftgatemotor assembly, which moves the liftgate into the
open position. The liftgate motor provides the torque
and power to move the door to its full open or closed
position(Refer to 8 - ELECTRICAL/POWER DOORS -
OPERATION) for additional information.
REMOVAL
The power liftgate gear/motor assembly is serviced
in two ways: the complete gear/motor assembly, or
the motor, aluminum housing, drive gears and wire
harness assembly. To perform this service, use the
following procedure to remove the gear/motor assem-
bly from the vehicle. Then refer to the other proce-
dures called out in this section to transfer the
remaining components (engage actuator, full open
switch, transverse bracket and lift gear and rod) to
the replacement gear/motor assembly.
(1)
Disconnect and isolate the battery negative cable.
(2) Remove the left rear D-pillar trim panel from
the vehicle, (Refer to 23 - BODY/INTERIOR/LEFT
D-PILLAR TRIM PANEL - REMOVAL).
(3) Disconnect the wire harness connector from the
motor assembly (Fig. 15).
(4) Remove the two bolts from the motor housing
and the one bolt from the transverse mount bracket.
(5) Grab the liftgate motor assembly and lift
upward and out to unhook the motor assembly from
the D-pillar.
(6) Remove the liftgate motor assembly from the
vehicle.
Fig. 14 POWER LIFTGATE COMPONENTS
1 - POWER LIFTGATE GEAR MOTOR/ASSEMBLY
2 - POWER LIFTGATE CONTROL MODULE
3 - ELECTRICAL GROUND LOCATION
Fig. 15 POWER LIFTGATE COMPONENTS
1 - POWER LIFTGATE GEAR MOTOR/ASSEMBLY
2 - POWER LIFTGATE CONTROL MODULE
3 - ELECTRICAL GROUND LOCATION
RSPOWER LIFTGATE SYSTEM8N-15