Chrysler Concorde 2004 Service Manual page 1023

1.0 INTRODUCTION
The procedures contained in this manual include
all the specifications, instructions, and graphics
needed to diagnose 2004 LH body system prob-
lems involving navigation and satellite radios. 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 module; i.e., if the DRBIII
shows a "no response" or "Bus +/- Signal 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.
An * placed before the symptom description indi-
cates a customer complaint.
When repairs are required, refer to the appropri-
ate service manual for the proper removal and
installation procedure.
Diagnostic procedures change every year. New
diagnostic systems may be added: carry over 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 the book and mail it back to
us.
1.1 SYSTEM COVERAGE
This manual is designed as a supplement to be
used along with the 2003 300M, Intrepid and Con-
corde Body diagnostic manual, 81-270-03007.
1.2 SIX STEP TROUBLESHOOTING
PROCEDURE
Diagnosis of the body system is done in six basic
steps:
• verification of complaint
GENERAL INFORMATION
•
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 that are covered in this supplement are:
•
Navigation Radio
• Satellite Radio (SDARS)
3.0 SYSTEM DESCRIPTION AND
FUNCTIONAL OPERATION
3.1 NAVIGATION RADIO
The optional navigation radio system receives
GPS signals from up to eight satellites to display
the position and direction of the vehicle. Map infor-
mation is supplied through a DVD-ROM. An elec-
tronic gyrosensor and the vehicle's speed sensor
enable the system to display the present vehicle
position even in locations where GPS signals may
be blocked.
When a destination is selected, the navigation
system uses information from the map to quickly
calculate a route. As the vehicle is driven along the
chosen route, the operator is guided with pictorial
displays and voice prompts. For complete operating
instructions, refer to the manual included with the
vehicle.
3.2 SATELLITE RADIO (SDARS)
To use the satellite radio, the radio must be in
satellite mode. The satellite antenna must have an
unobstructed view of the satellite. The vehicle must
be outside to receive proper reception. Poor recep-
tion may be experienced in large down town areas
where tall buildings are present. The satellite net-
work is still under development, and this could be
the cause of poor reception in certain areas. Use a
known good system to verify network performance
in these areas.
Once in satellite mode, the radio head is used to
change stations. The Radio must be in Satellite
mode to communicate to the Satellite Receiver
Module with the DRBIII . The Radio head commu-
nicates to the Satellite Receiver Module via the PCI
bus and the private Audio bus. The Audio bus
1