Front Control Module; Diagnosis And Testing - Front Control Module; Removal; Installation - Chrysler Dodge Caravan 2002 Manual

8E - 8 ELECTRONIC CONTROL MODULES
FRONT CONTROL MODULE (Continued)
• Back-Up switch
• Brake Fluid Level
• B+ Connection Detection
• Engine Crank Signal (Diesel Engine Vehicles)
• Horn Input
• Ignition Switch Start Only
• Ignition Switch Run and Start Only
• Stop Lamp Sense
• Washer Fluid Level
• Windshield Wiper Park
DIAGNOSIS AND TESTING - FRONT CONTROL
MODULE
The Front Control Module (FCM) is a printed cir-
cuit board based module with a on-board micro-pro-
cessor. The FCM interfaces with other electronic
modules in the vehicle via the Programmable Com-
munications Interface (PCI) data bus. In order to
obtain conclusive testing the PCI data bus and all of
the electronic modules that provide inputs to, or
receive outputs from the FCM must be checked. All
PCI communication faults must be resolved prior to
further diagnosing any front control module related
issues.
The FCM was designed to be diagnosed with an
appropriate diagnostic scan tool, such as the DRB
III . The most reliable, efficient, and accurate means
to diagnose the front control module requires the use
of a DRB III scan tool and the proper Body Diag-
nostic Procedures manual.
Before any testing of the FCM is attempted, the
battery should be fully charged and all wire harness
and ground connections inspected around the affected
areas on the vehicle.

REMOVAL

(1) Disconnect the positive and negative battery
cables from the battery.
(2) Remove the battery from the vehicle. Refer to
the procedure in Battery Systems.
(3) Using a long flat-bladed screwdriver, gently
twist the Integrated Power Module (IPM) retaining
clip outboard to free the IPM from its mounting
bracket (Fig. 6). Rotate IPM upward to access the
Front Control Module (FCM) retaining screws.
(4) Remove the front control module retaining
screws.
(5) Using both hands, pull the FCM straight from
the IPM assembly to disconnect the 49-way electrical
connector (Fig. 7) and remove the front control mod-
ule from the vehicle.

INSTALLATION

NOTE: Front Control Module must be programmed
to the correct radio EQ curve using the DRB III .
Fig. 6 REMOVING INTELLIGENT POWER MODULE
Fig. 7 FRONT CONTROL MODULE

1 - FRONT CONTROL MODULE

This will ensure that the audio system is operating
correctly.
(1) Install the Front Control Module (FCM) in the
Integrated Power Module (IPM) assembly by pushing
the 49-way electrical connector straight in.
(2) Install the FCM retaining screws. Torque the
screws to 1 N·m (7 in. lbs).
(3) Rotate the IPM assembly downward to secure
in mounting bracket.
RS