2001 CHRYSLER VOYAGER ECU

OPERATION
Each Sentry Key has a unique transponder identi-
fication code permanently programmed into it by the
manufacturer. Likewise, the SKIM has a unique
9Secret Key9code programmed into it by the manu-
facturer as well. When a Sentry Key is programmed
into the memory of the SKIM, the SKIM stores the
transponder identification code from the Sentry Key,
and the Sentry Key learns the9Secret Key9code from
the SKIM. Once the Sentry Key learns the9Secret
Key9code of the SKIM, it is also permanently pro-
grammed into the transponder's memory. Therefore,
blank keys for the SKIS must be programmed by the
SKIM in addition to being cut to match the mechan-
ical coding of the ignition lock cylinder. Refer to Elec-
trical, Vehicle Theft Security, Transponder Key,
Standard Procedure - Transponder Programming.
The Sentry Key's transponder is within the range
of the SKIM's transceiver antenna ring when it is
inserted into the ignition lock cylinder. When the
ignition switch is turned to the ON position, the
SKIM communicates with the Sentry Key via a radio
frequency (RF) signal. The SKIM determines if a
valid key is present based on the information it
receives from the Sentry Key. If a valid key is
detected, that fact is communicated to the PCM via
the PCI bus and the vehicle is allowed to continue
running. If an invalid key is received by the PCM or
no status at all is communicated, the vehicle will
stall after two (2) seconds of running. The indicator
light will be flashing at this point. The Sentry Key's
transponder can not be repaired. If it is faulty or
damaged, it must be replaced.
Common communication problems:
²Two transponder keys too close together.
²Speed Pass too close to transponder key.
Solid indicator that there is a system failure.
²Loss of PCM communication.
²Failed antenna circuit.
STANDARD PROCEDURE - TRANSPONDER
PROGRAMMING
USING A DRB IIITSCAN TOOL
All Sentry Keys included with the vehicle are pre-
programmed to work with the Sentry Key Immobi-
lizer System (SKIS) when it is shipped from the
factory. The Sentry Key Immobilizer Module (SKIM)
can be programmed to recognize up to a total of eight
Sentry Keys. When programming a blank Sentry Key
transponder, the key must first be cut to match the
ignition lock cylinder of the vehicle for which it will
be used. The vehicle's four digit PIN code will be
required to complete this task since you will need it
to enter the Secured Access Mode in the SKIM. Thefollowing steps must be completed using a DRB IIIt
scan tool:
(1) Insert the blank key into the ignition and turn
it to the RUN position.
(2) Using a DRB IIItscan tool, select9Theft
Alarm,99SKIM,99Miscellaneous,9and then9Program
New Key.9
(3) Enter the four digit PIN code using the DRB
IIItscan tool. When programming is completed, the
SKIM will exit Secured Access Mode and the DRB
IIItscan tool will display the results of your attempt
to program the key. One of five distinct results may
be displayed. All five are listed below:
²(Programming Successful(is displayed if the
Sentry Key programming is successful.
²(Learned Key in Ignition(is displayed if the
key in the ignition has already been programmed
into that vehicle's SKIM.
²(Eight Keys Already Learned (At The Maxi-
mum) Programming Not Done(is displayed if
eight keys have already been programmed into the
SKIM. In this case, if a new key needs to be added
due to a lost or defective key, the9Erase All Keys9
command (which requires entering the Secured
Access Mode) has to be performed. Following the
9Erase All Keys9command, all keys that will be used
to operate the vehicleMUSTbe reprogrammed to
the SKIM.
²(Programming Not Attempted(is displayed
after an9Erase All Keys9function is executed.
²(Programming Key Failed(is displayed if fur-
ther diagnosis is required.
To learn additional keys, turn the ignition OFF,
remove the learned key, insert the next new blank
key, and repeat the steps from the beginning.
ªCUSTOMER LEARNº MODE
This feature is only available on domestic vehicles
or those which have a U.S. country code designator.
This procedure requires access to at least two valid
Sentry Keys. If two valid Sentry Keys are not avail-
able, Sentry Key programming will require the use of
a DRB IIItscan tool.
The steps required to program Sentry Keys with
two valid Sentry Keys follows:
(1) Obtain the blank Sentry Key(s) that need to be
programmed. Cut the keys to match the ignition lock
cylinder mechanical key codes.
(2) Insert one of the two valid Sentry Keys into the
ignition switch and turn the ignition switch to the
ON position.
(3) After the ignition switch has been in the ON
position for longer than three seconds, but no more
than fifteen seconds, cycle the ignition switch back to
8Q - 4 VEHICLE THEFT SECURITYRS
TRANSPONDER KEY (Continued)

the OFF position. Replace the first valid Sentry Key
in the ignition lock cylinder with the second valid
Sentry Key and turn the ignition switch back to the
ON position. The second valid Sentry Key must be
inserted within 15 seconds of removing the first valid
Sentry key.
(4) About ten seconds after the completion of Step
3, the indicator light will start to flash and a single
audible chime tone will sound to indicate that the
system has entered the9Customer Learn9program-
ming mode.
(5) Within sixty seconds of entering the9Customer
Learn9programming mode, turn the ignition switch
to the OFF position, replace the valid Sentry Key
with a blank Sentry Key transponder, and turn the
ignition switch back to the ON position.
(6) About ten seconds after the completion of Step
5, a single audible chime tone will sound and the
indicator light will stop flashing and stay on solid for
three seconds and then turn off to indicate that the
blank Sentry Key has been successfully programmed.
The SKIS will immediately exit the9Customer
Learn9programming mode and the vehicle may be
started using the newly programmed Sentry Key.
These steps must be completed in their entirety for
each additional Sentry Key to be programmed. If any
of the above steps are not completed in the given
sequence, or within the allotted time, the SKIS will
exit the9Customer Learn9programming mode and
the programming will be unsuccessful. The SKIS will
also automatically exit the9Customer Learn9pro-
gramming mode if:
²It sees a non-blank Sentry Key when it should
see a blank.
²If it has already programmed eight (8) valid
Sentry Keys.
²If the ignition switch is turned to the OFF posi-
tion for more than about fifty (50) seconds.
NOTE: If you attempt to start the vehicle while in
ªCustomer Learnº mode (LED flashing), the vehicle
will behave as though an invalid key is being used
(i.e. the engine will stall after two (2) seconds of
running). No faults will be logged.
NOTE: Once a Sentry Key has been programmed to
a particular vehicle, it cannot be used on any other
vehicle.VTSS/SKIS INDICATOR LAMP
DESCRIPTION
The Sentry Key Immobilizer System (SKIS) uses
an indicator light to convey information on the status
of the system to the customer. This light is shared
with the Vehicle Theft Security System (VTSS). The
light is located in the Message Center. The indicator
light is controlled by the Body Control Module (BCM)
based upon messages it receives from the Sentry Key
Immobilizer Module (SKIM) on the PCI bus.
OPERATION
The BCM performs a four second bulb check,
regardless of SKIM messages. After the bulb check,
the lamp is controlled according to SKIM messages.
Then, the SKIM sends messages to the BCM to oper-
ate the light based upon the results of the SKIS self
tests. The light may be actuated in two possible
ways, flashing or on solid. If the light comes on and
stays on solid after a power-up test, this indicates
that the SKIM has detected a system malfunction. If
the SKIM detects an invalid key when the ignition
switch is moved to the ON position, it sends a mes-
sage on the PCI bus to the BCM, to flash the light.
The SKIM can also send a message to flash the light
and generate a single audible chime at the same
time. These two events occurring simultaneously
indicate that the SKIS has been placed into the9Cus-
tomer Learn9mode. Refer to Electrical, Vehicle Theft
Security, Transponder Key, Standard Procedure -
Transponder Programming for more information on
the9Customer Learn9mode. If the light comes on
and stays on after the power-up test, diagnosis of the
SKIS should be performed using a DRB IIItscan tool
and the appropriate Body Diagnostic Procedures
manual. The light is not a serviceable component.
RSVEHICLE THEFT SECURITY8Q-5
TRANSPONDER KEY (Continued)

(11) Lift wiper unit from weld-studs on lower
windshield fence.
CAUTION: Do not allow wiper unit to rest on brake
master cylinder reservoir, damage to brake system
can result.
(12) Remove wiper unit.
INSTALLATION
(1) Position the wiper unit into the cowl.
(2) Install the nuts that retain the wiper unit.
(3) Install the bolts that secure the wiper unit to
the dash (Fig. 7).
(4) Connect the drain tubes to the nipples on the
wiper unit.
(5) Connect the windshield washer tube.
(6) Connect the wire harness connector to the
wiper unit (Fig. 7).
(7) Disconnect the positive lock on the wiper unit
wire connector (Fig. 6).
CAUTION: Do not allow wiper unit to rest on brake
master cylinder reservoir, damage to brake system
can result.
(8) Close the hood.
(9) Install the cowl cover (Refer to 23 - BODY/EX-
TERIOR/COWL GRILLE - INSTALLATION).
(10) Install the wiper arms and blades.
(11) Connect the battery negative cable.
REAR WIPER ARM
REMOVAL
(1) Lift and hold wiper blade away from rear win-
dow.
(2) Lift lock holding wiper arm to wiper pivot
upward.
(3) Allow wiper arm to rest against lock.
(4) Pull wiper from pivot (Fig. 8).
Fig. 6 WIPER UNIT WIRE CONNECTOR
1 - WIPER SYSTEM WIRE CONNECTOR
2 - LOCK TAB
3 - POSITIVE LOCK
4 - WIPER UNIT
Fig. 7 WIPER UNIT
1 - BOLT
2 - NUTS
3 - BOLT
4 - WIPER UNIT
5 - WINDSHIELD
Fig. 8 REAR WIPER ARM
1 - LOCK
2 - WIPER BLADE
3 - REAR WIPER ARM
8R - 6 WIPERS/WASHERSRS
FRONT WIPER UNIT (Continued)

WIRING
TABLE OF CONTENTS
page page
WIRING DIAGRAM INFORMATION...... 8Wa-01-1
COMPONENT INDEX................. 8Wa-02-1
POWER DISTRIBUTION.............. 8Wa-10-1
GROUND DISTRIBUTION............. 8Wa-15-1
BUS COMMUNICATIONS............. 8Wa-18-1
CHARGING SYSTEM................. 8Wa-20-1
STARTING SYSTEM................. 8Wa-21-1
FUEL/IGNITION SYSTEM............. 8Wa-30-1
TRANSMISSION CONTROL SYSTEM.... 8Wa-31-1
VEHICLE SPEED CONTROL........... 8Wa-33-1
ANTILOCK BRAKES.................. 8Wa-35-1
VEHICLE THEFT SECURITY SYSTEM.... 8Wa-39-1
INSTRUMENT CLUSTER.............. 8Wa-40-1
HORN/CIGAR LIGHTER/POWER OUTLET . 8Wa-41-1
AIR CONDITIONING-HEATER.......... 8Wa-42-1
AIRBAG SYSTEM................... 8Wa-43-1
INTERIOR LIGHTING................. 8Wa-44-1
BODY CONTROL MODULE............ 8Wa-45-1MESSAGE CENTER.................. 8Wa-46-1
AUDIO SYSTEM.................... 8Wa-47-1
REAR WINDOW DEFOGGER........... 8Wa-48-1
OVERHEAD CONSOLE................ 8Wa-49-1
FRONT LIGHTING................... 8Wa-50-1
REAR LIGHTING.................... 8Wa-51-1
TURN SIGNALS..................... 8Wa-52-1
WIPERS........................... 8Wa-53-1
TRAILER TOW...................... 8Wa-54-1
POWER WINDOWS.................. 8Wa-60-1
POWER DOOR LOCKS............... 8Wa-61-1
POWER MIRRORS.................. 8Wa-62-1
POWER SEATS..................... 8Wa-63-1
SPLICE INFORMATION............... 8Wa-70-1
CONNECTOR PIN-OUTS.............. 8Wa-80-1
CONNECTOR/GROUND LOCATIONS BUX . 8Wa-90-1
SPLICE LOCATIONS BUX............. 8Wa-95-1 RGWIRING
8Wa-1

8W-39 VEHICLE THEFT SECURITY SYSTEM
Component Page
Body Control Module . . . 8Wa-39-2, 4, 7, 8, 9, 10, 11,
12, 13, 14, 15
Clockspring........................ 8Wa-39-6
Data Link Connector................. 8Wa-39-4
Diagnostic Junction Port.............. 8Wa-39-4
Driver Door Lock Switch.......... 8Wa-39-12, 13
Engine Control Module............... 8Wa-39-3
Front Control Module.............. 8Wa-39-4, 6
Front Intrusion Sensor............... 8Wa-39-5
Fuse 8 (IPM)....................... 8Wa-39-6
Fuse 14 (IPM)...................... 8Wa-39-2
Fuse 24 (IPM)...................... 8Wa-39-2
G102............................. 8Wa-39-6
G200............................. 8Wa-39-3
G300........... 8Wa-39-7, 8, 9, 10, 11, 12, 13, 14
G301.............. 8Wa-39-7, 8, 9, 10, 11, 12, 13
G302............................ 8Wa-39-15
G400......................... 8Wa-39-14, 15
High Note Horn.................... 8Wa-39-6
Hood Ajar Switch.................. 8Wa-39-14
Horn Relay........................ 8Wa-39-6
Horn Switch....................... 8Wa-39-6
Ignition Switch................... 8Wa-39-3, 4
Intelligent Power Module......... 8Wa-39-2, 4, 6
Left Cylinder Lock Switch......... 8Wa-39-12, 13
Left Front Door Ajar Switch........... 8Wa-39-7
Left Front Door Lock Motor/
Ajar Switch.................... 8Wa-39-7, 8Component Page
Left Sliding Door Control Module.... 8Wa-39-9, 10
Left Sliding Door Latch Sensing Switch . . 8Wa-39-9
Left Sliding Door Lock Motor......... 8Wa-39-10
Left Sliding Door Lock Motor/
Ajar Switch..................... 8Wa-39-11
Liftgate Ajar Switch................ 8Wa-39-15
Liftgate Cinch/Release Motor......... 8Wa-39-15
Liftgate Cylinder Lock Switch......... 8Wa-39-14
Low Note Horn..................... 8Wa-39-6
Message Center..................... 8Wa-39-2
Passenger Door Lock Switch....... 8Wa-39-12, 13
Power Liftgate Module.............. 8Wa-39-15
Powertrain Control Module............ 8Wa-39-3
Rear Intrusion Sensor................ 8Wa-39-5
Remote Keyless Entry Module......... 8Wa-39-2
Right Cylinder Lock Switch........ 8Wa-39-12, 13
Right Front Door Ajar Switch.......... 8Wa-39-7
Right Front Door Lock Motor/
Ajar Switch.................... 8Wa-39-7, 8
Right Sliding Door Control Module . . . 8Wa-39-9, 10
Right Sliding Door Latch Sensing Switch . 8Wa-39-9
Right Sliding Door Lock Motor........ 8Wa-39-10
Right Sliding Door Lock Motor/
Ajar Switch..................... 8Wa-39-11
Sentry Key Immobilizer Module...... 8Wa-39-2, 3
Siren............................. 8Wa-39-4
Thatcham Alarm Indicator............ 8Wa-39-5
Thatcham Alarm Module............ 8Wa-39-4, 5
RG8W-39 VEHICLE THEFT SECURITY SYSTEM8Wa-39-1

(53) Lower the vehicle.
(54) Remove the power steering pump and set
aside.
(55) Raise vehicle enough to allow engine dolly
Special Tool 6135 and cradle Special Tool 6710 with
post Special Tool 6848 and adaptor Special Tool 6909
to be installed under vehicle (Fig. 10).
(56) Loosen cradle engine mounts to allow move-
ment for positioning onto engine locating holes on the
engine. Lower vehicle and position cradle mounts
until the engine is resting on mounts. Tighten
mounts to cradle frame. This will keep mounts from
moving when removing or installing engine and
transmission.
(57) Lower vehicle so the weight ofONLY THE
ENGINE AND TRANSMISSIONis on the cradle.
(58) Install and secure the safety straps to the cra-
dle fixture and around the engine.(59) Remove the engine right side mount to engine
attaching bolts (Fig. 11).
(60) Remove the left mount through bolt (Fig. 12).
(61) Raise vehicle slowly. It is necessary to move
the engine/transmission assembly on the cradle to
allow for removal around body flanges.
INSTALLATION - ENGINE ASSEMBLY
(1) Position engine and transmission assembly
under vehicle. Slowly lower the vehicle down over the
engine and transmission. It may be necessary to
move the engine/transmission assembly with the cra-
dle for clearance around body flanges.
(2) Align engine and transmission mounts to
attaching points. Install mounting bolts at the right
engine (Fig. 11) and left transmission mount (Fig.
12).
(3) Remove the safety straps from around engine.
Fig. 10 Positioning Engine Cradle Support Post Mounts
1 - SPECIAL TOOL 8444 4 - SPECIAL TOOLS 6135 & 6710
2 - SPECIAL TOOLS 6848 5 - SPECIAL TOOLS 6848
3 - SPECIAL TOOL 6912 6 - SAFETY STRAPS
9 - 84 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)

FLEX PLATE
REMOVAL
(1) Remove the transaxle. (Refer to 21 - TRANS-
MISSION/TRANSAXLE/AUTOMATIC - 31TH -
REMOVAL) (Refer to 21 - TRANSMISSION/TRAN-
SAXLE/AUTOMATIC - 41TE - REMOVAL)
(2) Remove flex plate attaching bolts.
(3) Remove the flex plate (Fig. 68).
INSTALLATION
(1) Position flex plate with backing plate on the
crankshaft (Fig. 68).
(2) Apply MopartLock & Seal Adhesive to the flex
plate bolts.
(3) Install flex plate bolts (Fig. 68). Tighten bolts
to 95 N´m (70 ft. lbs.).
(4) Install the transaxle. (Refer to 21 - TRANS-
MISSION/TRANSAXLE/AUTOMATIC - 31TH -
INSTALLATION) (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 41TE - INSTALLA-
TION)
HYDRAULIC LIFTERS (CAM IN
BLOCK)
DESCRIPTION
The hydraulic lifters are a roller type design and
are positioned in the cylinder block. The lifters are
aligned and retained by a yoke and a retainer (Fig.
69).
Lifter alignment is maintained by machined flats
on lifter body. Lifters are fitted in pairs into sixaligning yokes. The aligning yokes are secured by a
yoke retainer (Fig. 69).
DIAGNOSIS AND TESTING - HYDRAULIC
LIFTERS
HYDRAULIC LIFTERS DIAGNOSIS - PRELIMINARY
STEP
Before disassembling any part of the engine to cor-
rect lifter noise, check the engine oil pressure. (Refer
to 9 - ENGINE/LUBRICATION - DIAGNOSIS AND
TESTING)
Check engine oil level. The oil level in the pan
should never be above the MAX mark on dipstick, or
below the MIN mark. Either of these two conditions
could cause noisy lifters.
Fig. 68 FLEX PLATE
1 - FLEX PLATE
2 - BOLT (QTY. 8)
3 - BACKING PLATE
Fig. 69 Hydraulic Lifters
1 - YOKE RETAINER
2 - BOLT - YOKE RETAINER
3 - ALIGNING YOKE
4 - HYDRAULIC LIFTER
9 - 118 ENGINE 3.3/3.8LRS

CYLINDER HEAD
STANDARD PROCEDURE - VALVE SERVICE
This procedure is done with the engine cylinder
head removed from the block.
DISASSEMBLY
(1) Remove the engine cylinder head from the cyl-
inder block. Refer to cylinder head removal and
installation in this section.
(2) Use Valve Spring Compressor Tool and com-
press each valve spring.
(3) Remove the valve locks, retainers, and springs.
(4) Use an Arkansas smooth stone or a jewelers
file to remove any burrs on the top of the valve stem,
especially around the groove for the locks.
(5) Remove the valves, and place them in a rack in
the same order as removed.
VALVE CLEANING
(1) Clean all carbon deposits from the combustion
chambers, valve ports, valve stems, valve stem
guides and head.
(2) Clean all grime and gasket material from the
engine cylinder head machined gasket surface.
INSPECTION
(1) Inspect for cracks in the combustion chambers
and valve ports.
(2) Inspect for cracks on the exhaust seat.
(3) Inspect for cracks in the gasket surface at each
coolant passage.
(4) Inspect valves for burned, cracked or warped
heads.
(5) Inspect for scuffed or bent valve stems.
(6) Replace valves displaying any damage.
(7) Check valve spring height (Fig. 12).
VALVE REFACING
(1) Use a valve refacing machine to reface the
intake and exhaust valves to the specified angle.
(2) After refacing, a margin of at least 4.52-4.49
mm (.178-.177 inch) must remain (Fig. 13). If the
margin is less than 4.49 mm (.177 inch), the valve
must be replaced.
VALVE SEAT REFACING
(1) Install a pilot of the correct size in the valve
guide bore. Reface the valve seat to the specified
angle with a good dressing stone. Remove only
enough metal to provide a smooth finish.
(2) Use tapered stones to obtain the specified seat
width when required.
VALVE STAND DOWN
Valve stand down is to maintain the adequate com-
pression ratio.
(1) Invert cylinder head.
(2) Fit each valve to its respective valve guide.
(3) Using a straight edge and feeler gauge, check
valve head stand down: Inlet valve head stand down
1.08 to 1.34 mm (.042 to .052 ins.) and exhaust valve
stand down .99 to 1.25 mm (.035 to .049 ins.).
(4) If valve head stand down is not in accordance
with above, discard original valves, check stand down
with new valves and recut valve seat inserts to
obtain correct stand down.
VALVE GUIDES
(1) Valve Guides height requirement.
(2) Measurement A (Fig. 14): 13.50 - 14.00 mm.
VALVE STEM-TO-GUIDE CLEARANCE
MEASUREMENT
(1) Measure and record internal diameter of valve
guides. Valve guide internal diameter is 8.0 to 8.015
mm (.3149 to .3155 ins.).
(2) Measure valve stems and record diameters.
Intake valve stem diameter 7.94 to 7.96 mm (.3125 to
.3133 in). Exhaust valve stem diameter 7.92 to 7.94
mm (.3118 to .31215 in).
Fig. 12 VALVE SPRING CHART
LOAD Kg HEIGHT mm STATE
P1 0.00 H1 45.26 FREE LENGTH
P2 182 5 -
10%H2 38.00 VALVE CLOSED
P3 395 5% H3 28.20 VALVE OPEN
9a - 18 ENGINE 2.5L TURBO DIESELRG