Grand Cherokee 2WD V8-4.7L VIN N (2000)
power seats are each equipped with a switch featuring three switch control knobs ganged together on the outboard seat cushion side shield. The
ten-way power seats are each equipped with a switch featuring two knobs ganged together on the outboard seat cushion side shield.
The switch units for both power seat types are secured to the back of the seat cushion side shield with two screws. However, the control knobs for
the six-way power seat switch unit remain installed during switch unit removal and installation, while both knobs for the ten-way power seat switch
unit must be removed.
The individual switches in both power seat switch units cannot be repaired. If one switch is damaged or faulty, the entire power seat switch unit
must be replaced.
The power seat tracks of both the six-way and the ten-way power seat systems can be adjusted in six different ways using the power seat switches.
The ten-way system has the additional power seat recliner switch integral to the power seat switch and also has a separate, stand-alone switch to
control the power lumbar adjuster. See the owner's manual in the vehicle glove box for more information on the power seat switch functions and
the seat adjusting procedures.
When a power switch control knob or knobs are actuated, a battery feed and a ground path are applied through the switch contacts to the power
seat track or recliner adjuster motor. The selected adjuster motor operates to move the seat track or recliner through its drive unit in the selected
direction until the switch is released, or until the travel limit of the adjuster is reached. When the switch is moved in the opposite direction, the
battery feed and ground path to the motor are reversed through the switch contacts. This causes the adjuster motor to run in the opposite direction.
No power seat switch should be held applied in any direction after the adjuster has reached its travel limit. The power seat adjuster motors each
contain a self-resetting circuit breaker to protect them from overload. However, consecutive or frequent resetting of the circuit breaker must not be
allowed to continue, or the motor may be damaged.
MEMORY SWITCH
Vehicles equipped with the memory system have a memory switch mounted to the driver side front door trim panel. This switch is used to set and
recall all of the memory system settings for up to two drivers. The memory switch is a resistor multiplexed unit that is hard wired to the Driver
Door Module (DDM), which is also located on the driver side front door trim panel. The DDM sends out the memory system set and recall
requests to the other electronic modules over the Programmable Communications Interface (PCI) data bus.
The memory switch cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.
The memory switch has three momentary switch buttons labeled Set, 1 and 2. The Driver 1 and Driver 2 buttons are back-lit with Light-Emitting
Diodes (LED) for visibility, and are also color-coded to coincide with the color-coded Driver 1 and Driver 2 Remote Keyless Entry (RKE)
transmitters. The Driver 1 memory switch button and RKE transmitter are black, and the Driver 2 memory switch button and RKE transmitter are
gray. The memory switch Set button also has an LED that will illuminate and flash to indicate that the memory system is in the set mode. This
LED will automatically be extinguished when a set request has been successfully completed.
See the owner's manual in the vehicle glove box for more information on the features, use and operation of the memory switch. For diagnosis of
the memory switch, the DDM or the PCI data bus, the use of a DRB scan tool and the proper Diagnostic Procedures are recommended.
