Chrysler Town, Dodge Caravan. Manual — part 76
CONDITION
POSSIBLE CAUSE
CORRECTION
HEADPHONES
WILL NOT HOLD
A CHANNEL OR
HAVE STATIC
1. WEAK BATTERIES IN
THE HEADPHONES.
1. REPLACE BATTERIES.
2. CLOSENESS TO
RADIO TRANSMITTER
SUCH AS A RADIO
TOWER, AIRPORT
TRANSMITTER OR
SOME MOBILE
RADIOS.
2. MOVE TO AN AREA AWAY FREE FROM THESE
CONDITIONS.
REMOTE
CONTROL
INOPERATIVE
1. WEAK BATTERIES IN
THE REMOTE
CONTROL.
1. REPLACE BATTERIES.
2. OPERATION
CONSTRAINT OF
SYSTEM
2. MAKE SURE THAT REAR AUDIO IS IN A DIFFERENT MODE
THAN FRONT SPEAKERS. REMOTE CONTROL WILL NOT
WORK WHEN BOTH ARE IN THE SAME MODE.
ANTENNA BODY AND CABLE
DESCRIPTION
All models use a fixed-length stainless steel rod-
type antenna mast, installed at the right front fender
of the vehicle. The antenna mast is connected to the
center wire of the coaxial antenna cable, and is not
grounded to any part of the vehicle.
OPERATION
To minimize static, the antenna base must have a
good ground. The coaxial antenna cable shield (the
outer wire mesh of the cable) is grounded to the
antenna base and the radio chassis.
The antenna coaxial cable has an additional dis-
connect, located near the right end of the instrument
panel. This additional disconnect allows the instru-
ment panel assembly to be removed and installed
without removing the radio.
DIAGNOSIS AND TESTING - ANTENNA BODY
AND CABLE
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,
REFER
TO
ELECTRICAL,
RESTRAINTS
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING
COLUMN,
OR
INSTRUMENT
PANEL
COMPONENT DIAGNOSIS OR SERVICE. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
The ohmmeter test lead connections for each test
are shown in (Fig. 1).
TEST 1
Test 1 determines of the antenna mast is insulated
from the base. Proceed as follows:
(1) Unplug the antenna coaxial cable from the
radio chassis and isolate. Remove the antenna mast.
(2) Connect an ohmmeter test lead to the inside
center of the antenna base. Connect the other test
lead to a metallic portion on the outside of the
antenna base. Check for continuity.
(3) There should be no continuity. If continuity is
found, replace the faulty or damaged antenna base
and cable assembly.
Fig. 1 Antenna Test Points
8A - 4
AUDIO
RS
AUDIO/VIDEO (Continued)
TEST 2
Test 2 checks the antenna for an open circuit as
follows:
(1) Unplug the antenna coaxial cable connector
from the radio chassis. Remove the antenna mast.
(2) Connect an ohmmeter test lead to the inside
center of the antenna base. Connect the other test
lead to the center pin of the antenna coaxial cable
connector.
(3) Continuity should exist (the ohmmeter should
only register a fraction of an ohm). High or infinite
resistance indicates damage to the base and cable
assembly. Replace the faulty base and cable if
required.
TEST 3
Test 3 checks the condition of the ground between
the antenna base and the vehicle body as follows:
(1) Connect one ohmmeter test lead to the fender
on an exposed metal area. Connect the other test
lead to the outer crimp on the antenna coaxial cable
connector.
(2) The resistance should be less than (1) ohm.
(3) If the resistance is more than (1) ohm, clean
and/or tighten the antenna base to the fender mount-
ing hardware.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove glove box from instrument panel,
(Refer to 23 - BODY/INSTRUMENT PANEL/GLOVE
BOX - REMOVAL).
(3) Disconnect antenna cable connector from exten-
sion cable (Fig. 2).
(4) Remove right kick trim panel.
(5) Disengage rubber grommet insulator from door
hinge pillar.
(6) Pull antenna cable through hinge pillar into
opening between door hinges.
(7) Hoist and support vehicle on safety stands.
(8) Remove front wheel.
(9) Remove front wheelhouse splash shield. (Refer
to
23
-
BODY/EXTERIOR/LF
WHEELHOUSE
SPLASH SHIELD - REMOVAL).
Fig. 2 Antenna Cable
1 - CAP NUT
2 - ADAPTER
3 - FENDER
4 - CABLE TO RADIO (EXTENSION CABLE)
5 - A-PILLAR
6 - RUBBER GROMMET
7 - ANTENNA CABLE AND BODY ASSEMBLY
8 - RUBBER GROMMET
RS
AUDIO
8A - 5
ANTENNA BODY AND CABLE (Continued)
(10) Remove antenna mast from antenna base
(Fig. 3).
(11) Using cap nut tool, remove cap nut holding
antenna base to front fender (Fig. 4).
(12) Remove
antenna
base
from
under
front
fender.
INSTALLATION
(1) Install antenna base to underside of front
fender.
(2) Install cap nut holding antenna base to front
fender.
(3) Install antenna mast to antenna base.
(4) Install front wheelhouse splash shield.
(5) Install front wheel.
(6) Lower vehicle.
(7) Push antenna cable through opening in hinge
pillar.
(8) Insert rubber grommet into door hinge pillar.
(9) Install kick panel.
(10) Connect antenna cable connector to extension
cable.
(11) Install glove box to instrument panel.
(12) Connect the battery negative cable.
ANTENNA MODULE - EXPORT
DESCRIPTION
The antenna module is an electromagnetic circuit
component designed to capture and enhance RF
(Radio Frequency) signals in both the AM and FM
broadcast bands. The antenna module is mounted to
the right rear roof rail under the headliner. The mod-
ule is grounded through the mounting bracket and
fastener. The module has a two wire electrical con-
nector that connects to the integral radio antenna,
located on the right rear quarter glass. There is also
an electrical connector for battery voltage and a coax
cable connector.
OPERATION
The antenna module receives both AM and FM
radio signals supplied by the side window integral
radio antenna system and selectively amplifies them.
The amplified signal is then sent through the body
length coax cable to the radio input.
Fig. 3 Antenna Mast
1 - ANTENNA MAST
2 - ADAPTER
3 - CAP NUT
Fig. 4 Antenna Cap Nut
1 - CAP NUT
2 - ANTENNA ADAPTER
3 - TOOL
8A - 6
AUDIO
RS
ANTENNA BODY AND CABLE (Continued)
DIAGNOSIS AND TESTING - ANTENNA MODULE - EXPORT
CONDITION
POSSIBLE CAUSES
CORRECTION
NO AM RECEPTION,
WEAK FM RECEPTION
1. Antenna module to antenna
connector open or disconnected.
1. Repair open, reconnect
antenna module connector to
glass mounted antenna.
2. Coax open or disconnected.
2. Repair open, reconnect coax.
3. No battery power at antenna
module.
3. Check fuse. if okay, repair
open in battery voltage circuit.
NO AM OR FM
RECEPTION
1. Coax disconnected at radio.
1. Reconnect coax.
2. Coax shorted to ground.
2. Repair or Replace coax
WEAK OR NO AM/FM
RECEPTION
1. Antenna Module faulty.
1. Substitute known good
module. If reception improves,
Antenna Module was faulty.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Lower
headliner
as
necessary
to
access
antenna module (Fig. 5).
(3) Disconnect antenna coax cable lead and electri-
cal harness connector from antenna module.
(4) Disconnect the antenna module connector from
the quarter glass.
(5) Remove the mounting screw and the antenna
module.
INSTALLATION
(1) Install the antenna module and the mounting
fastener.
(2) Connect the antenna connector to the quarter
glass.
(3) Connect the antenna lead and electrical con-
nector to the antenna module.
(4) Raise and install headliner.
(5) Connect the battery negative cable.
CD CHANGER
DESCRIPTION
The 6 Disc In-Dash CD Changer (if equipped) is
located in the instrument panel below the radio. The
remote changer does not use a cartridge or magazine
for the CD’s. Up to 6 CD’s can be directly loaded into
this unit.
OPERATION
Due to its compact design, the CD changer can
carry out only 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 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. 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 Eject button, six disc
buttons, an indicator LED for each of the six disc
positions as well as an illuminated disc opening. The
individual LED indicates whether a CD is currently
loaded in that particular chamber of the CD changer.
Pressing the individual button for a particular cham-
ber, then the Eject button will eject a disc currently
present in that chamber. If the chamber is currently
empty, actuating the individual button will position
Fig. 5 ANTENNA MODULE
1 - ANTENNA MODULE
2 - ANTENNA MODULE CONNECTOR
RS
AUDIO
8A - 7
ANTENNA MODULE - EXPORT (Continued)
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