Chrysler New Yorker. Manual — part 105
REMOVAL AND INSTALLATION
SEAT ASSEMBLY
REMOVAL
(1) Remove adjuster attaching bolts from floor pan.
Move seat as necessary for access.
(2) Open hood, disconnect and isolate the negative
battery cable remote terminal from the remote bat-
tery post (Fig. 3).
(3) Disconnect wiring harness power lead at car-
pet.
(4) Remove assembly from vehicle.
INSTALLATION
For installation, reverse the above procedure.
Install and torque mounting bolts and nuts to 60 to
80 N·m (44 to 59 ft. lbs.). Connect the battery nega-
tive remote cable and check seat operation.
SEAT SWITCH
REMOVAL
(1) Open hood, disconnect and isolate the negative
battery cable remote terminal from the remote bat-
tery post (Fig. 3).
SEAT MOTOR TEST
SEAT CONNECTOR
CONNECT JUMPER
SEAT ACTION
B (+)
B (-)
DRIVER SIDE
PASSENGER
SIDE
PIN 9
PIN 6
FRONT
RISER UP
FRONT RISER
DOWN
PIN 6
PIN 9
FRONT
RISER DOWN
FRONT RISER
UP
PIN 10
PIN 3
FORWARD
FORWARD
PIN 3
PIN 10
REARWARD
REARWARD
PIN 8
PIN 7
REAR RISER
UP
REAR RISER
DOWN
PIN 7
PIN 8
REAR RISER
DOWN
REAR RISER
UP
PIN 4
PIN 2
RECLINER UP
RECLINER UP
PIN 2
PIN 4
RECLINER
DOWN
RECLINER
DOWN
Fig. 1 Power Seat Wire Harness Pin Call-Out
SEAT SWITCH CONTINUITY TEST
SWITCH POSITION
CONTINUITY BETWEEN PINS
DRIVER
PASSENGER
OFF
PIN 5 TO 4
PIN 5 TO 3
PIN 5 TO 2
PIN 5 TO 10
PIN 5 TO 9
PIN 5 TO 8
PIN 5 TO 7
PIN 5 TO 6
PIN 5 TO 4
PIN 5 TO 3
PIN 5 TO 2
PIN 5 TO 10
PIN 5 TO 9
PIN 5 TO 8
PIN 5 TO 7
PIN 5 TO 6
FRONT RISER UP
PIN 5 TO 6
PIN 1 TO 9
PIN 5 TO 9
PIN 1 TO 6
FRONT RISER DOWN
PIN 5 TO 9
PIN 1 TO 6
PIN 5 TO 6
PIN 1 TO 9
CENTER SWITCH
FORWARD
PIN 5 TO 3
PIN 1 TO 10
PIN 5 TO 3
PIN 1 TO 10
CENTER SWITCH
REARWARD
PIN 5 TO 10
PIN 3 TO 1
PIN 5 TO 10
PIN 3 TO 1
REAR RISER UP
PIN 5 TO 7
PIN 1 TO 8
PIN 5 TO 8
PIN 1 TO 7
REAR RISER DOWN
PIN 5 TO 8
PIN 1 TO 7
PIN 5 TO 7
PIN 1 TO 8
RECLINER UP
PIN 5 TO 2
PIN 4 TO 1
PIN 5 TO 2
PIN 4 TO 1
RECLINER DOWN
PIN 5 TO 4
PIN 2 TO 1
PIN 5 TO 4
PIN 2 TO 1
Fig. 2 Seat Switch Pin Call-Out
Fig. 3 Negative Battery Cable Remote Terminal
8R - 2
POWER SEATS
LH
DIAGNOSIS AND TESTING (Continued)
(2) Remove cushion side shield (Fig. 4).
(3) Disconnect wiring from switch.
(4) Remove knobs from the switch.
(5) Remove four switch attaching screws.
(6) Remove switch from cushion side shield
INSTALLATION
For installation, reverse the above procedure.
SEAT TRACK
REMOVAL
(1) Seat removed from vehicle. Using a clean area
to place seat.
(2) Remove two seat back mounting screws and
also remove two seat back recliner screws (Fig. 5).
(3) Remove four seat track mounting screws from
cushion pan.
(4) Remove track from seat.
INSTALLATION
For installation, reverse the above procedure.
Fig. 4 Cushion Side Shield
Fig. 5 Seat Track Removal
LH
POWER SEATS
8R - 3
REMOVAL AND INSTALLATION (Continued)
POWER SEATS
CONTENTS
page
page
MEMORY SEATS . . . . . . . . . . . . . . . . . . . . . . . . . . 3
POWER SEATS . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
POWER SEATS
INDEX
page
page
DESCRIPTION AND OPERATION
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1
POSITION SENSING POWER SEAT
POTENTIOMETERS . . . . . . . . . . . . . . . . . . . . . 1
POWER SEAT SWITCH . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
POWER SEAT SWITCH DIAGNOSTIC TEST . . . . 1
DESCRIPTION AND OPERATION
INTRODUCTION
Power seats can be adjusted in 8 different direc-
tions:
• Up or down
• Forward or back
• Tilt forward or rearward
• Recliner up or down
Two single armature permanent magnet reversible
motors are coupled through cables to worm gear box
assemblies. They are located in the seat tracks and
upper supports. The two single gear motor assem-
blies attach to the seat tracks provide the various
seat movements.
The electrical circuit is protected by a 20 amp cir-
cuit breaker located on the Junction Block and a 40
amp fuse in the Power Distribution Center.
POSITION SENSING POWER SEAT
POTENTIOMETERS
A potentiometer is mounted to each seat motor to
provide a sense voltage to the MHSMM that will
indicate where the actual seat position is.
This sense voltage is derived from a 5-volt source
provided by the module to the potentiometer. The
MHSMM reads this sense voltage and stores it if
required.
POWER SEAT SWITCH
The seat switch assembly is mounted outboard in
the seat cushion side cover (Fig. 1). Activating any
seat switch will move the seat in the corresponding
direction. The MHSMM will drive a maximum of two
motors at a time in a given direction. If conflicting
directions are requested, the priorities for responses
are as follows:
• Seat Track Rearward
• Seat Front Down
• Seat Rear Down
• Seat Recliner Rearward
• Seat Track Forward
• Seat Front Up
• Seat Rear Up
• Seat Recliner Forward
DIAGNOSIS AND TESTING
POWER SEAT SWITCH DIAGNOSTIC TEST
The Power Seat Switch Diagnostic Test can be
used to test whether the switch activations are being
recognized by the MHSMM.
ACTIVATION
The Power Seat Switch Diagnostic Test can only be
activated by sending the proper PCI bus command
via the DRB lll scan tool to enter diagnostic test
number 2.
Upon activation of the test the operator has ten
seconds
to
activate
all
switches,
manual
seat
switches - all 8 directions, 3 memory switches, and
both driver and passenger heat HI and LO requests,
but not including the mirrors.
300M
POWER SEATS
8R - 1
At the conclusion on the ten-second period, the
MHSMM can be requested to provide both Pass/Fail
test information. A Pass condition occurs only if all
the switches are activated. If any of the switches are
not activated, Fail will be registered.
Should a Fail condition occur, the individual switch
information could be accessed using the proper com-
mands on the DRB lll scan tool.
8R - 2
POWER SEATS
300M
DIAGNOSIS AND TESTING (Continued)
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