1.0 INTRODUCTION
The procedures contained in this manual include
all the specifications, instructions and graphics
needed to diagnose 2003 body system problems. The
diagnostics in this manual are based on the failure
condition or symptom being present at the time of
diagnosis.
Please follow the recommendations below when
choosing your diagnostic path.
1. First make sure the DRBIII is communicating
with the appropriate modules; i.e., if the
DRBIII displays a "No Response" or a "Bus
Signals Open" condition, you must diagnose that
first.
2. Read DTC's (diagnostic trouble codes) with the
DRBIII .
3. If no DTC's are present, identify the customer
complaint.
4. Once the DTC or customer complaint is identi-
fied, locate the matching test in the Table of
Contents and begin to diagnose the symptom.
All component location views are in Section 8.0. All
connector pinouts are in Section 9.0. All schematics
are in Section 10.0. All Charts and Graphs are in
Section 11.0.
An * placed before the symptom description indi-
cated a customer complaint.
When repairs are required, refer to the appropri-
ate service information for the proper removal and
repair procedure.
Diagnostic procedures change every year. New
diagnostic systems may be added: carryover sys-
tems may be enhanced. READ THIS MANUAL
BEFORE TRYING TO DIAGNOSE A VEHICLE
DIAGNOSTIC TROUBLE CODE. It is recom-
mended that you review the entire manual to be-
come familiar with all the new and changed diag-
nostic procedures.
This book reflects many suggested changes from
readers of past issues. After using this book, if you
have any comments or suggestions, please fill out the
form in the back of this book and mail it back to us.
1.1 SYSTEM COVERAGE
This diagnostic procedures manual covers all
2003 Chrysler Town and Country, Chrysler Voyager
and Caravan vehicles. This diagnostic procedures
manual also covers both left hand drive (LHD) and
right hand drive (RHD) vehicles. There may be
some slight differences in the location views of
components. If the location views shown are on a
LHD vehicle, a RHD vehicle will be symmetrically
opposite.
GENERAL INFORMATION
1.2 SIX-STEP TROUBLESHOOTING
PROCEDURE
Diagnosis of the body system is done in six basic
steps:
•
verification of complaint
•
verification of any related symptoms
•
symptom analysis
•
problem isolation
•
repair of isolated problem
•
verification of proper operation
2.0 IDENTIFICATION OF
SYSTEM
The vehicle systems that are part of the "body"
system are:
•
Airbag
•
Audio
•
Automatic Temperature Control
•
Cabin Heater
•
Chime
•
Communication
•
Door Ajar System
•
Electrically heated system
•
Exterior lighting
•
Instrument Cluster
•
Interior Lighting
•
Manual Temperature Control
•
Memory Seat
•
Overhead Console
•
Power Door Lock/RKE
•
Power Folding Mirrors
•
Power Sliding Doors
•
Power Liftgate
•
Power windows
•
Tire Pressure Monitor
•
Vehicle Theft Security System (VTSS)
•
Windshield Wiper and Washer
3.0 SYSTEM DESCRIPTION AND
FUNCTIONAL OPERATION
The body system on the 2003 RS and RG consists of
a combination of modules that communicate over the
PCI bus (Programmable Communication Interface
multiplex system). Through the PCI bus, information
about the operation of vehicle components and circuits
is relayed quickly to the appropriate modules. All
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