Jeep Grand Cherokee WK. Manual — part 533
2. Check the power seat fuse in the power distribution center. If OK, go to Step 3. If not OK, replace the inoperative
fuse.
3. Remove the power seat switch from the seat cushion side panel. Check for battery voltage at the fused B(+)
circuit cavity of the power seat switch wire harness connector. If OK, go to Step 4. If not OK, repair the open
circuit to the power distribution center as required.
4. Check for continuity between the ground circuit cavity of the power seat switch wire harness connector and a
good ground. There should be continuity. If OK, go to Step 5. If not OK, repair the open circuit to ground as
required.
5.
(Refer to 8 - ELECTRICAL/POWER SEATS/SEAT SWITCH - DIAGNOSIS AND TESTING). If the switch tests
OK, check the wire harness between the power seat switch and the motor. If the circuits check OK, replace the
faulty power seat adjuster assembly. If the circuits are not OK, repair the wire harness as required.
STANDARD PROCEDURE
MEMORY SYSTEM PROGRAMMING
The Memory Seat Module (MSM) interfaces with the Remote Keyless Entry (RKE) system via the Controller Area
Network (CAN) bus. The proper procedure of setting and recalling a memory position using the RKE is as follows:
1. Press and release memory switch 1 or 2 to recall memory position 1or 2.
2. Adjust the seat, recliner, adjustable pedal position, set radio station presets, set HVAC temperature preset, and
the side view mirrors to the desired position.
3. Press momentarily and release memory switch S.
4. Within five seconds, press momentarily and release memory switch 1 or 2.
5. To link the RKE transmitter: within ten seconds, press and release the “LOCK” button on one of the RKE trans-
mitters
To program the second driver’s position, repeat the above procedure using memory switch 2. The second RKE
transmitter can be programmed in the same fashion as indicated in step 5 Step 5.
NOTE: The module will abort a recall if the transmission is moved out of park or if any seat movement is
activated whether manually or by memory recall. The module will also abort a recall if any movement of the
adjustable pedals is detected.
To recall either of the programmed positions momentarily press and release either memory selector switch 1 or 2.
If using RKE, just press and release the “UNLOCK” button on the proper transmitter for either position 1 or 2.
A recall is possible any time the vehicle transmission is in PARK and the seatbelt is unbuckled. This condition is
monitored by the MSM.
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POWER SEATS - SERVICE INFORMATION
WK
MOTOR-SEAT ADJUSTER
REMOVAL
WARNING: A seat structure that has seen signifi-
cant load may have the locking mechanism acti-
vated and may exhibit the following symptoms:
•
Locking pawl (2) loose
•
Locking pawl (2) engaged into the seat frame
sidemember (1)
•
Height adjuster only works on outboard side
•
Broken or missing shear pin (3)
If any one or more of these symptoms exist
replace the height adjuster assembly. Do not
attempt
any
repairs.
Failure
to
follow
these
instructions may result in personal injury or death.
FRONT TILT MOTOR
1. Disconnect and isolate the battery negative cable.
2. Remove the affected seat with the inoperative
motor (1) (Refer to 23 - BODY/SEATS/SEAT -
FRONT - REMOVAL).
3. Remove the seat cushion and pan (Refer to 23 -
BODY/SEATS/SEAT
CUSHION
COVER
-
REMOVAL).
WK
POWER SEATS - SERVICE INFORMATION
8N - 293
4. Disconnect the motor electrical connector.
5. Remove the fasteners holding the motor to the seat
adjuster (1).
6. Remove motor from seat adjuster (2).
HEIGHT ADJUST MOTOR
WARNING: Use caution when removing the height adjust motor (3) if the motor is inoperative, and the
power seat is not in the full up position. The seat adjuster assembly (2) is under load from the height adjust
spring and may cause the motor to rotate under pressure when the fasteners are removed. The seat
adjuster assembly also may spring upward when the motor is removed. If the height adjust motor is oper-
ative, move the power seat to the full up position prior to disconnecting the battery.
8N - 294
POWER SEATS - SERVICE INFORMATION
WK
1. Disconnect and isolate the battery negative cable.
2. Remove the affected seat with the inoperative
motor (3) (Refer to 23 - BODY/SEATS/SEAT -
FRONT - REMOVAL).
3. Remove the seat cushion and pan (Refer to 23 -
BODY/SEATS/SEAT
CUSHION
COVER
-
REMOVAL).
4. Disconnect the motor electrical connector.
5. Remove the fasteners (1) holding the motor (3) to
the seat adjuster (2).
6. Remove screw and washer from the motor shaft.
7. Remove motor (3) from seat adjuster (2).
WK
POWER SEATS - SERVICE INFORMATION
8N - 295
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