Removal And Installation; Power Lumbar Switch; Power Seat Adjuster And Motors; Power Seat Switch - Jeep 1997 Grand Cherokee Service Manual

ZG
DIAGNOSIS AND TESTING (Continued)
(4) Test the power seat switch as described in this
group. If the switch tests OK, check the wire harness
for the power recliner between the switch and the
motor for shorts or opens. If the circuits check OK,
replace the faulty power recliner adjuster and motor
assembly. If the circuits are not OK, repair the wire
harness as required.
POWER LUMBAR ADJUSTER AND MOTOR
The tests below apply to a power seat system with-
out the memory system option. For testing of the
power seats with the memory system, refer to the
proper Body Diagnostic Procedures manual. For cir-
cuit descriptions and diagrams, refer to 8W-63 -
Power Seat in Group 8W - Wiring Diagrams.
Operate the power lumbar switch to move the
power lumbar adjuster in each direction. The lumbar
adjuster should move in both directions. If the power
lumbar adjuster fails to operate in only one direction,
move the adjuster a short distance in the opposite
direction and test again to be certain the adjuster is
not at its travel limit. If the lumbar adjuster still
fails to operate in only one direction, see the diagno-
sis for the Power Lumbar Switch in this group. If the
power lumbar adjuster fails to operate in either
direction, proceed as follows:
(1) Test the circuit breaker in the junction block as
described in this group. If OK, go to Step 2. If not
OK, replace the faulty circuit breaker.
(2) Remove the power lumbar switch as described
in this group. Check for battery voltage at the fused
B(+) circuit cavity of the switch wire harness connec-
tor. If OK, go to Step 3. If not OK, repair the open
circuit to the junction block as required.
(3) Check for continuity between the ground cir-
cuit cavity of the switch wire harness connector and
a good ground. There should be continuity. If OK, go
to Step 4. If not OK, repair the open circuit to ground
as required.
(4) Test the power lumbar switch as described in
this group. If the switch tests OK, check the wire
harness for the power lumbar adjuster between the
switch and the motor for shorts or opens. If the cir-
cuits check OK, replace the faulty power lumbar
adjuster and motor, which are serviced with the seat
back frame assembly. If the circuits are not OK,
repair the wire harness as required.

REMOVAL AND INSTALLATION

POWER SEAT SWITCH

(1) Disconnect and isolate the battery negative
cable.
(2) Using a trim stick or other suitable wide flat-
bladed tool, gently pry the power seat and power
recliner switch knobs off of the switch stems.
POWER POWER SEAT/RECLINER LUMBAR SWITCH SWITCH
POWER SEAT SYSTEMS
(3) Remove the three screws that secure the seat
cushion side shield to the seat cushion frame.
(4) Pull the side shield away from the seat cushion
far enough to unplug the switch wire harness connec-
tor.
(5) Remove the two screws that secure the switch
to the inside of the side shield (Fig. 3).
Fig. 3 Power Seat Switches Remove/Install
(6) Remove the switch from the side shield.
(7) Reverse the removal procedures to install.

POWER LUMBAR SWITCH

(1) Disconnect and isolate the battery negative
cable.
(2) Remove the three screws that secure the seat
cushion side shield to the seat cushion frame.
(3) Pull the side shield away from the seat cushion
far enough to unplug the switch wire harness connec-
tor.
(4) Remove the two screws that secure the switch
to the inside of the side shield.
(5) Remove the switch from the side shield.
(6) Reverse the removal procedures to install.

POWER SEAT ADJUSTER AND MOTORS

(1) Move the seat to the forward-most position, if
possible.
(2) Remove the single screw that secures each of
the two rear seat track covers to the rear of the seat
tracks and remove the covers.
(3) Remove the single screw that secures the rear
of each of the two seat tracks to the floor pan.
(4) Move the seat to the rearward-most position, if
possible.
(5) Disconnect and isolate the battery negative
cable.
(6) Remove the single screw that secures the front
of each of the two seat tracks to the floor pan (Fig.
4).
(7) Tilt the seat rearward and unplug the power
seat wire harness connector located under the seat
cushion.
(8) Remove the seat assembly from the vehicle.
SEAT SIDE SHIELD CUSHION
8R - 5