Chrysler RG Voyager. Manual — part 1091
ASSEMBLY
(1) Assemble oil pump as shown in (Fig. 286).
(2) Install and torque reaction shaft support-to-oil
pump housing bolts to 28 N·m (20 ft. lbs.) torque
(Fig. 287).
PLANETARY GEARTRAIN
DESCRIPTION
The planetary geartrain is located between the
input clutch assembly and the rear of the transaxle
case. The planetary geartrain consists of two sun
gears, two planetary carriers, two annulus (ring)
gears, and one output shaft (Fig. 288).
OPERATION
The planetary geartrain utilizes two planetary gear
sets that connect the transmission input shaft to the
output shaft. Input and holding clutches drive or lock
different planetary members to change output ratio
or direction.
Fig. 286 Oil Pump Assembly
1 - PUMP BODY
2 - OUTER GEAR
3 - INNER GEAR
4 - REACTION SHAFT SUPPORT
5 - SEAL RINGS (4)
6 - REACTION SHAFT
7 - CRESCENT
Fig. 287 Reaction Support-to-Pump Body Bolts
1 - BOLT (6)
2 - PUMP BODY
3 - REACTION SHAFT SUPPORT
Fig. 288 Planetary Geartrain
1 - FRONT SUN GEAR ASSEMBLY
2 - #6 THRUST BEARING
3 - #7 THRUST BEARING
4 - REAR CARRIER/FRONT ANNULUS ASSEMBLY
5 - REAR SUN GEAR
6 - FRONT CARRIER/REAR ANNULUS ASSEMBLY
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41TE AUTOMATIC TRANSAXLE
21 - 385
OIL PUMP (Continued)
SEALS - OIL PUMP
REMOVAL
(1) Remove transaxle from vehicle (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC - 41TE
- REMOVAL).
(2) Using Tool C-3981-B, remove oil pump seal
(Fig. 289).
INSTALLATION
(1) Using Tool C-4193, install oil pump seal (Fig.
290).
(2) Install transaxle to vehicle (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC - 41TE
- INSTALLATION).
SHIFT INTERLOCK SOLENOID
DESCRIPTION
The Brake/Transmission Shift Interlock system
consists of an electro-magnetic solenoid mounted to
the steering column (Fig. 291). The solenoid’s plunger
consists of an integrated hook, which operates the
shift lever pawl (part of shift lever assembly), and a
plunger return spring (Fig. 292). The solenoid also
has an integrated bracket, which facilitates fastening
to the steering column.
Fig. 289 Remove Oil Pump Seal
1 - TOOL C-3981–B
2 - OIL PUMP SEAL
Fig. 290 Install Oil Pump Seal
1 - TOOL C-4193
2 - HANDLE TOOL C-4171
Fig. 291 Brake/Transmission Shift Interlock (BTSI)
Solenoid Location
1 - BTSI SOLENOID
Fig. 292 Solenoid Plunger and Return Spring
1 - PLUNGER
2 - RETURN SPRING
3 - BTSI SOLENOID
21 - 386
41TE AUTOMATIC TRANSAXLE
RS
OPERATION
The Brake/Transmission Shift Interlock (BTSI)
Solenoid prevents the transmission shift lever from
being moved out of PARK (P) unless the brake pedal
is applied. The BTSI solenoid is hardwired to and
controlled by the Intelligent Power Module (IPM).
Battery voltage is applied to one side of the solenoid
with the ignition key is in either the OFF, ON/RUN,
or START positions (Fig. 293). The ground side of the
solenoid is controlled by a driver within the IPM. It
relies on voltage supplied from the stop lamp switch
to the stop lamp sense circuit within the IPM to tell
when the brake pedal is depressed. When the brake
pedal is depressed, the ground circuit opens, de-ener-
gizing
the
solenoid.
When
the
brake
pedal
is
released, the ground circuit is closed, energizing the
solenoid.
When the ignition key is in either the OFF,
ON/RUN, or START positions, the BTSI solenoid is
energized, and the solenoid plunger hook pulls the
shift lever pawl into position, prohibiting the shift
lever from moving out of PARK (P) (Fig. 294). When
the brake pedal is depressed, the ground circuit
opens, de-energizing the solenoid. This moves the
gearshift lever pawl out of the way (Fig. 295), allow-
ing the shift lever to be moved into any gear position.
A conventional mechanical interlock system is also
used. This system manually prohibits shifter move-
ment when the ignition switch is in the LOCK or
ACC positions. Solenoid operation is not required in
these key positions.
For intended BTSI system operation, refer to the
following chart:
ACTION
EXPECTED RESPONSE
1. Turn key to the
9
OFF
9
position.
1. Shifter CAN be shifted
out of park with brake
pedal applied.
2. Turn key to the
9
ON/RUN
9
position.
2. Shifter CANNOT be
shifted out of park.
3. Turn key to the
9
ON/RUN
9
position and
depress the brake pedal.
3. Shifter CAN be shifted
out of park.
Fig. 293 Ignition Key/Switch Positions
1 - ACC
2 - LOCK
3 - OFF
4 - ON/RUN
5 - START
Fig. 294 Pawl Engaged to Shift Lever
1 - GEAR SHIFT LEVER
2 - GEAR SHIFT LEVER PAWL
Fig. 295 Pawl Disengaged From Shift Lever
1 - GEAR SHIFT LEVER
2 - GEAR SHIFT LEVER PAWL
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41TE AUTOMATIC TRANSAXLE
21 - 387
SHIFT INTERLOCK SOLENOID (Continued)
ACTION
EXPECTED RESPONSE
4. Leave shifter in any
gear and try to return key
to the
9
LOCK
9
or
9
ACC
9
position.
4. Key cannot be
returned to the
9
LOCK
9
or
9
ACC
9
position.
5. Return shifter to
9
PARK
9
and try to remove
the key.
5. Key can be removed
(after returning to
9
LOCK
9
position).
6. With the key removed,
try to shift out of
9
PARK
9
.
6. Shifter cannot be
shifted out of
9
PARK
9
.
NOTE: Any failure to meet these expected
responses requires system adjustment or repair.
DIAGNOSIS AND TESTING - BRAKE/
TRANSMISSION SHIFT INTERLOCK SOLENOID
For intended BTSI system operation, refer to the
following chart:
ACTION
EXPECTED RESPONSE
1. Turn key to the
9
OFF
9
position.
1. Shifter CAN be shifted
out of park with brake
pedal applied.
2. Turn key to the
9
ON/RUN
9
position.
2. Shifter CANNOT be
shifted out of park.
3. Turn key to the
9
ON/RUN
9
position and
depress the brake pedal.
3. Shifter CAN be shifted
out of park.
4. Leave shifter in any
gear and try to return key
to the
9
LOCK
9
or
9
ACC
9
position.
4. Key cannot be
returned to the
9
LOCK
9
or
9
ACC
9
position.
5. Return shifter to
9
PARK
9
and try to remove
the key.
5. Key can be removed
(after returning to
9
LOCK
9
position).
6. With the key removed,
try to shift out of
9
PARK
9
.
6. Shifter cannot be
shifted out of
9
PARK
9
.
NOTE: Any failure to meet these expected
responses requires system repair. Refer to the
appropriate Diagnostic Information.
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove instrument panel lower shroud (Fig.
296).
(3) Remove knee bolster (Fig. 297).
(4) Remove steering column lower shroud.
(5) Disconnect brake/transmission shift interlock
(BTSI) solenoid connector (Fig. 298).
Fig. 296 Instrument Panel Lower Silencer
1 - INSTRUMENT PANEL LOWER SILENCER
Fig. 297 Knee Bolster
1 - KNEE BOLSTER
21 - 388
41TE AUTOMATIC TRANSAXLE
RS
SHIFT INTERLOCK SOLENOID (Continued)
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