Chrysler Pacifica 2004 Service Manual page 1966

CS
ELECTRONIC CONTROL MODULES
BODY CONTROL MODULE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COMMUNICATION
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CONTROLLER ANTILOCK BRAKE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DOOR MODULE
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DIAGNOSIS AND TESTING - DOOR MODULE
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 7
POWERTRAIN CONTROL MODULE
DESCRIPTION
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 7
OPERATION - DATA BUS COMMUNICATION
RECEIVE - PCM INPUT . . . . . . . . . . . . . . . . . 10
BODY CONTROL MODULE
DESCRIPTION
CAUTION: Do not swap BCM's between vehicles or
with BCM's off the shelf.
The Body Control Module (BCM) is located on the
bulkhead left side, underneath the instrument panel
(Fig. 1). The BCM utilizes integrated circuitry and
information carried on the Programmable Communi-
cations Interface (PCI) data bus network along with
many hard wired inputs to monitor many sensor and
switch inputs throughout the vehicle. In response to
those inputs, the internal circuitry and programming
of the BCM allow it to control and integrate many
electronic functions and features of the vehicle
through both hard wired outputs and the transmis-
sion of electronic message outputs to other electronic
modules in the vehicle over the PCI data bus.
TABLE OF CONTENTS
page
OPERATION - PCM GROUND
OPERATION - 5 VOLT SUPPLY - PCM
OUTPUT
STANDARD PROCEDURE
STANDARD PROCEDURE - OBTAINING
DIAGNOSTIC TROUBLE CODES . . . . . . . . . . 10
STANDARD PROCEDURE - PINION
FACTOR SETTING . . . . . . . . . . . . . . . . . . . . . 11
STANDARD PROCEDURE - QUICK LEARN
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . 11
REMOVAL
INSTALLATION
MEMORY/HEATED SEAT ADJUSTABLE PEDAL
MODULE
DESCRIPTION
OPERATION
. . 6 DIAGNOSIS AND TESTING - MEMORY
HEATED SEAT ADJUSTABLE PEDAL
MODULE
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
INSTALLATION
1 - BODY CONTROL MODULE
2 - LOWER STEERING SHAFT
3 - REINFORCEMENT BRACKET
ELECTRONIC CONTROL MODULES 8E - 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
. . . . . . . . . . . . . . . . . . . . . . . . . 13
Fig. 1 BCM LOCATION
page
. . . . . . . . . . . . 10