Grand Caravan FWD V6-3.8L VIN L (2001)
circuit. The radio then responses to the message.
This circuit is fairly simple to troubleshoot. The circuit must be complete from the switches in the steering wheel to the BCM. The ground must be
complete so that the switches can cause the voltage drop for the BCM to see. The circuit passes through the clockspring so continuity through this
devise must be verified.
CD Changer
The new in-dash CD Changer is designed to fit into the existing cubby bin in the center stack. This new cartridge-less CD Changer is controlled by
your radio, and allows you to individually load up to four discs at a time. However, due to its compact design, the CD Changer can only carry out
one operation at a time. For example, you can not load a new disc while playing another at the same time. Each operation happens sequentially.
The radio unit installed with your system provides control over all features of the CD Changer with the exception of the CD load and eject
functions, which are controlled by buttons located on the front of the CD Changer. The radio also supplies the power, ground, PCI Bus, left and
right speaker output thru a single DIN cable. All features you would expect, such as Disc Up/Down, Track Up/ Down, Random and Scan are
controlled by the radio, which also displays all relevant CD Changer information on the radio display.
The CD Changer contains a Load/Eject button and an indicator light for each of the four disc positions. The individual light indicates whether a
CD is currently loaded in that particular chamber of the CD Changer. Pressing the individual Load/Eject button for a particular chamber will eject
a disc currently present in that chamber. If the chamber is currently empty, actuating the Load/Eject button will position that chamber to receive
and load a new disc in that chamber.
BODY CONTROL MODULE
The body control module (BCM) supplies vehicle occupants with visual and audible information and controls various vehicle functions. To
provide and receive information, the module is interfaced to the vehicle's serial bus communications network (PCI). This network consists of the
powertrain control module (PCM), the transmission control module (TCM), the mechanical instrument cluster (MIC), the front control module
(FCM), the occupant restraint controller (ORC), the compass/mini-trip (CMTC), the electronic vehicle information center (EVIC), the controller
antilock brake (CAB), the HVAC control module (ATC & MTC), the power sliding door (Left & Right) modules (PSD), the power liftgate
module (PLG), the Audio system, the side impact airbag control (left & right) modules (SIACM), the memory seat/mirror module (MSMM) and
the sentry key immobilizer module (SKIM). The BCM is operational when battery power is supplied to the module.
The body control module provides the following features:
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Power Door Locks
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Automatic Door Lock
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Door Lock Inhibit
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Central Locking (with VTSS Only)
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Battery Protection
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The BCM will automatically turn OFF all exterior lamps after 3 minutes and all interior lamps after 15 minutes after the ignition is turned
OFF, if they are not turned OFF by the driver.
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Chime Driver
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Compass/Minitrip Support
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Interior Lighting (Courtesy/Reading Lamps)
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BCM Diagnostic Reporting
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Electronic Liftgate Release (with Power Door Locks)
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Exterior Lighting
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Headlamp Time Delay (with/without Autoheadlamps)
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Automatic Headlamps (with electrochromatic mirror)
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Illuminated Entry
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Fade to OFF
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Headlamp Time Delay (with/without Autoheadlamps)
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Automatic Headlamps (with electrochromatic mirror)
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Illuminated Entry
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Fade to Off
This feature dims the interior lighting (courtesy lamps) gradually if the BCM does not receive any new inputs that would cause the interior lamps
to remain ON.
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PWM Instrument Panel Dimming
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Door Lock Inhibit
This feature disables the door lock functions if the key is in the ignition and either front door is ajar. Pressing the RKE lock/unlock button under
these conditions, result in normal lock/unlock activation.
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Power Sliding Door Switch Inputs
The BCM has 4 switch inputs for the power sliding door feature: Located in the overhead console are the Left and Right side sliding door switches
to activate either or both sliding doors under the proper conditions. Also are B-Pillar switches located on the Left and Right B-pillar posts.
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Power Liftgate Switch Input
