Jeep 1996 Grand Cherokee Service Manual page 416

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GENERAL INFORMATION
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1
MEMORY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 2
POWER LIFTGLASS RELEASE SYSTEM . . . . . . 1
POWER LOCK SYSTEM . . . . . . . . . . . . . . . . . . . 1
REMOTE KEYLESS ENTRY SYSTEM . . . . . . . . . 1
DESCRIPTION AND OPERATION
BODY CONTROL MODULE . . . . . . . . . . . . . . . . . 3
CIRCUIT BREAKER . . . . . . . . . . . . . . . . . . . . . . . 3
DOOR MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 2
POWER LOCK MOTOR . . . . . . . . . . . . . . . . . . . . 3
POWER LOCK SWITCH . . . . . . . . . . . . . . . . . . . 2
REMOTE KEYLESS ENTRY RECEIVER . . . . . . . . 3
REMOTE KEYLESS ENTRY TRANSMITTER . . . . 3
DIAGNOSIS AND TESTING
CIRCUIT BREAKER . . . . . . . . . . . . . . . . . . . . . . . 4
GENERAL INFORMATION
INTRODUCTION
Power lock and remote keyless entry systems are
standard factory-installed equipment on this model.
Following are general descriptions of the major com-
ponents in the power lock, remote keyless entry, and
liftglass latch systems. Refer to 8W-61 - Power Door
Locks in Group 8W - Wiring Diagrams for complete
circuit descriptions and diagrams. Refer to the own-
er's manual for more information on the features and
use of these systems.
POWER LOCK SYSTEM
The power lock system allows all doors and the lift-
gate to be locked or unlocked by operating the switch
on either front door panel. This system operates with
battery power supplied through a circuit breaker in
the junction block, independent of the ignition
switch.
The power lock system includes the front door
switches, door modules mounted in each front door,
and power lock motors mounted in each door and the
liftgate.
POWER LIFTGLASS RELEASE SYSTEM
Models equipped with the optional liftgate liftglass
feature also have a power operated liftglass release
system. This system operates with battery power
POWER LOCK SYSTEMS
CONTENTS
page
POWER LOCK SYSTEMS
DOOR MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 4
POWER LIFTGLASS RELEASE SYSTEM . . . . . . 5
POWER LOCK MOTOR . . . . . . . . . . . . . . . . . . . . 4
POWER LOCK/REMOTE KEYLESS ENTRY
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REMOTE KEYLESS ENTRY TRANSMITTER . . . . 5
SERVICE PROCEDURES
REMOTE KEYLESS ENTRY TRANSMITTER
BATTERY REPLACEMENT . . . . . . . . . . . . . . . . 5
REMOTE KEYLESS ENTRY TRANSMITTER
PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . 5
REMOVAL AND INSTALLATION
DOOR MODULE . . . . . . . . . . . . . . . . . . . . . . . . . 5
POWER LOCK MOTOR . . . . . . . . . . . . . . . . . . . . 6
supplied through a fuse in the junction block, inde-
pendent of the ignition switch. The power liftglass
release system allows the liftglass to be opened by
depressing a switch mounted in the top of the liftgate
license plate tub.
The liftglass release system includes the liftgate
mounted switch, a mechanical latch equipped with
an electric release solenoid, and a limit switch inte-
gral to the liftgate latch mechanism. The limit switch
automatically disables the liftglass release circuit
whenever the liftgate latch is locked with either the
key, the power lock system, or the remote keyless
entry transmitter.
Refer to 8W-61 - Power Door Locks in Group 8W -
Wiring Diagrams for circuit descriptions and dia-
grams. Refer to Group 23 - Body Components for the
procedures to service the power liftglass release com-
ponents.
REMOTE KEYLESS ENTRY SYSTEM
The Remote Keyless Entry (RKE) system is a radio
frequency system that allows the use of a remote
transmitter to control the power lock and illuminated
entry systems. If the vehicle is so equipped, the
remote keyless entry transmitter will also control the
memory seat/mirror/radio, and the vehicle theft
alarm systems.
The RKE system consists of the remote key fob
transmitter and a receiver with program logic, which
8P - 1
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