1996 CHRYSLER VOYAGER manual radio set

AUDIO SYSTEMS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DESCRIPTION AND OPERATION
ANTENNA.............................. 1
CHOKEÐINFINITY SPEAKERS.............. 2
INTERFERENCE ELIMINATION.............. 1
NAME BRAND SPEAKER RELAY............ 3
RADIO IGNITION INTERFERENCE........... 2
RADIOS................................ 1
REMOTE RADIO SWITCHES................ 3
DIAGNOSIS AND TESTING
ANTENNA.............................. 3AUDIO SYSTEM......................... 4
RADIO................................. 4
REMOTE RADIO SWITCHES................ 6
REMOVAL AND INSTALLATION
ANTENNA EXTENSION CABLE.............. 7
ANTENNA MAST AND CABLE LEAD......... 7
D±PILLAR SPEAKER.................... 10
FRONT DOOR SPEAKER................... 9
INSTRUMENT PANEL SPEAKER............. 8
QUARTER PANEL SPEAKER............... 10
RADIO/TAPE/CD PLAYER.................. 8
REMOTE RADIO SWITCHES................ 9
GENERAL INFORMATION
INTRODUCTION
Operating instructions for the factory installed
audio systems can be found in the Owner's Manual
provided with the vehicle.
NS vehicles are equipped with an Ignition Off
Draw (IOD) fuse in the power distribution center
located in the engine compartment. After the IOD
fuse or battery has been disconnected, the radio sta-
tion sets and clock will require resetting.
DESCRIPTION AND OPERATION
ANTENNA
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.
To eliminate 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.
The factory-installed Electronically Tuned Radios
(ETRs) automatically compensate for radio antenna
trim. Therefore, no antenna trimmer adjustment isrequired or possible when replacing the receiver or
the antenna.
INTERFERENCE ELIMINATION
Some components used on the vehicles are
equipped with a capacitor to suppress radio fre-
quency interference/static.
Capacitors are mounted in various locations inter-
nal to the generator, instrument cluster and wind-
shield wiper motor.
To eliminate radio interference, ground straps are
used in different areas of the vehicle. These ground
circuits should be securely tightened to assure good
metal to metal contact. The ground straps conduct
very small high frequency electrical signals to ground
and require clean surface contact area. The radio
ground is supplied from the instrument panel har-
ness and is attached to the rear of the radio. Some
engines have other ground straps to eliminate fur-
ther radio interference:
²Radio chassis to instrument panel structure
²Engine to dash panel
²Engine to chassis
²A/C h valve to dash panel
Radio resistance type spark plug cables in the high
tension circuit of the ignition system complete the
interference suppression. Faulty or deteriorated
spark plug wires should be replaced.
RADIOS
Available factory-installed radio receivers for this
model include an AM/FM/cassette (RAS sales code),
an AM/FM/cassette/5-band graphic equalizer with CD
changer control feature (RBN sales code), an AM/FM/
NSAUDIO SYSTEMS 8F - 1

CD/3-band graphic equalizer (RBR sales code), or an
AM/FM/CD/cassette/3-band graphic equalizer (RAZ
sales code).
All factory-installed radio receivers are stereo Elec-
tronically Tuned Radios (ETR) and include an elec-
tronic digital clock function.
All factory-installed radio receivers, except the
RAS model, communicate on the Chrysler Collision
Detection (CCD) data bus network through a sepa-
rate two-way wire harness connector. The CCD data
bus network allows the sharing of sensor informa-
tion. This helps to reduce wire harness complexity,
internal controller hardware, and component sensor
current loads. At the same time, this system provides
increased reliability, enhanced diagnostics, and
allows the addition of many new feature capabilities.
In addition, radios connected to the CCD data bus
have several audio system functions that can be diag-
nosed using a DRB scan tool. Refer to the proper
Diagnostic Procedures manual for more information
on DRB testing of the audio systems.
The radio can only be serviced by an authorized
radio repair station. Refer to the latest Warranty Pol-
icies and Procedures manual for a current listing of
authorized radio repair stations.
For more information on radio features, setting
procedures, and control functions refer to the owner's
manual in the vehicle glove box.
RADIO IGNITION INTERFERENCE
If receiving ignition/engine interference noise on
the radio stations, check and clean all engine and
body ground connections. Tighten properly after
cleaning. Example (Fig. 1), (Fig. 2), (Fig. 3) and (Fig.
4).
Ensure all ground connections are without corro-
sion.
CHOKEÐINFINITY SPEAKERS
If the audio system is lacking bass response, check
for continuity across the choke connector. If no conti-
nuity Replace choke. The choke is located on the
Fig. 1 Motor Mount to Frame Rail Ground
Fig. 2 2.4L Engine Block Ground
Fig. 3 3.0L Engine Block Ground
Fig. 4 3.3/3.8L Engine Block Ground
8F - 2 AUDIO SYSTEMSNS
DESCRIPTION AND OPERATION (Continued)

bracket behind the junction block/body control mod-
ule (Fig. 5).
REMOTE RADIO SWITCHES
A remote radio control switch option is available on
LXI models sold in North America with the AM/FM/
cassette/5-band graphic equalizer with CD changer
control feature (RBN sales code), or the AM/FM/CD/
cassette/3-band graphic equalizer (RAZ sales code)
radio receivers. Two rocker-type switches are
mounted on the back (instrument panel side) of the
steering wheel spokes. The switch on the left spoke is
the seek switch and has seek up, seek down, and pre-
set station advance functions. The switch on the
right spoke is the volume control switch and has vol-
ume up, and volume down functions (Fig. 6).
These switches are resistor multiplexed units that
are hard-wired to the Body Control Module (BCM)
through the clockspring. The BCM sends the propermessages on the Chrysler Collision Detection (CCD)
data bus network to the radio receiver. For diagnosis
of the BCM or the CCD data bus, the use of a DRB
scan tool and the proper Diagnostic Procedures man-
ual are recommended. For more information on the
operation of the remote radio switch controls, refer to
the owner's manual in the vehicle glove box.
NAME BRAND SPEAKER RELAY
Relay is located in the junction block. To test relay
refer to the Audio Diagnostic Test Procedures or use
a known good relay.
DIAGNOSIS AND TESTING
ANTENNA
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
The following four tests are used to diagnose the
antenna with an ohmmeter:
²Test 1- Mast to ground test
²Test 2- Tip-of-mast to tip-of-conductor test
²Test 3- Body ground to battery ground test
²Test 4- Body ground to coaxial shield test.
The ohmmeter test lead connections for each test
are shown in Antenna Tests (Fig. 7).
NOTE: This model has a two-piece antenna coaxial
cable. Tests 2 and 4 must be conducted in two
steps to isolate a coaxial cable problem; from the
coaxial cable connection under the right end of the
instrument panel near the right cowl side panel to
the antenna base, and then from the coaxial cable
connection to the radio chassis connection.
TEST 1
Test 1 determines if the antenna mast is insulated
from the base. Proceed as follows:
(1) Unplug the antenna coaxial cable connector
from the radio chassis and isolate.
(2) Connect one ohmmeter test lead to the tip of
the antenna mast. Connect the other test lead to 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. 5 Choke Location
Fig. 6 Remote Radio Switch Operational View
NSAUDIO SYSTEMS 8F - 3
DESCRIPTION AND OPERATION (Continued)

(1) Check the fuse(s) in the junction block and the
Power Distribution Center (PDC). If OK, go to Step
2. If not OK, repair the shorted circuit or component
as required and replace the faulty fuse(s).
(2) Check for battery voltage at the fuse in the
PDC. If OK, go to Step 3. If not OK, repair the open
circuit to the battery as required.
(3) Turn the ignition switch to the ON position.
Check for battery voltage at the fuse in the junction
block. If OK, go to Step 4. If not OK, repair the open
circuit to the ignition switch as required.
(4) Turn the ignition switch to the OFF position.
Disconnect and isolate the battery negative cable.
Remove the instrument cluster center bezel. Remove
the radio, but do not unplug the wire harness connec-
tors. Check for continuity between the radio chassis
and a good ground. There should be continuity. If
OK, go to Step 5. If not OK, repair the open radio
chassis ground circuit as required.
(5) Connect the battery negative cable. Turn the
ignition switch to the ON position. Check for battery
voltage at the fused ignition switch output circuit
cavity of the left (gray) radio wire harness connector.
If OK, go to Step 6. If not OK, repair the open circuit
as required.
(6) Turn the ignition switch to the OFF position.
Check for battery voltage at the fused B(+) circuit
cavity of the left (gray) radio wire harness connector.
If OK, replace the faulty radio. If not OK, repair the
open circuit to the Ignition-Off Draw (IOD) fuse as
required.
REMOTE RADIO SWITCHES
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable. Wait two minutes for the airbag system capac-
itor to discharge before further service.
(2) Remove the remote radio switch(es) from the
steering wheel.
(3) Use an ohmmeter to check the switch resis-
tance as shown in the Remote Radio Switch Test
table (Fig. 8).
NOTE: The right remote radio switch back is white
in color. The left switch back is black in color. The
right/left remote radio switch orientation is with the
steering wheel installed, and driver in drivers seat.(4) If the switch resistance checks OK, go to Step
5. If not OK, replace the faulty switch.
(5) Check for continuity between the ground cir-
cuit cavity of the switch wire harness connector and
a good ground. There should be continuity. If OK, go
to Step 6. If not OK, repair the open circuit as
required.
(6) Unplug the 24-way white wire harness connec-
tor from the Body Control Module (BCM). Check for
continuity between the radio control circuit cavity of
the remote radio switch wire harness connector and a
good ground. There should be no continuity. If OK, go
to Step 7. If not OK, repair the short circuit as
required.
(7) Check for continuity between the radio control
circuit cavities of the remote radio switch wire har-
ness connector and the BCM wire harness connector.
There should be continuity. If OK, refer to the proper
Diagnostic Procedures manual to test the BCM and
the CCD data bus. If not OK, repair the open circuit
as required.
Fig. 8 Remote Radio Switches
REMOTE RADIO SWITCH TEST
SWITCH POSITION RESISTANCE
VOLUME UP 7320 OHMS
VOLUME DOWN 1210 OHMS
SEEK UP 4530 OHMS
SEEK DOWN 2050 OHMS
PRE-SET STATION ADVANCE 10 OHMS
8F - 6 AUDIO SYSTEMSNS
DIAGNOSIS AND TESTING (Continued)

DIAGNOSTICS
During the Actuator calibration, diagnostics are
performed on the actuators and evaporator tempera-
ture Fin Sensor. Once diagnostics are completed the
REAR WIPER and INTERMITTENT LED's will flash
to indicate either a successful calibration or the
appropriate fail code(s). At this time manual testing
of the Blend, Mode and Driver (if equipped) potenti-
ometers can be performed. If a failure is detected
during Diagnostics a fault will be set in the control.
When Ignition is cycled OFF and then ON or Diag-
nostics is aborted, the REAR WIPER and INTER-
MITTENT LED's will flash simultaneously showing
that a failure has occurred. The control will not indi-
cate the fail code, but only that a failure had
occurred during the last diagnostics test. The only
way to clear the failure codes is repeat the Calibra-
tion Diagnostic and Cooldown test, after all repairs
are completed.
COOLDOWN TEST
This test has been designed for performance test-
ing of the A/C system at the manufacturing facility. If
the HVAC control module is replaced, the Cooldown
test will occur during Calibration test. Cooldown will
not occur on Heater Only units. During the Cooldown
test the control will monitor the temperature of the
Fin Sensor. The A/C system must be able to bring the
evaporator temperature down a predetermined mini-
mum amount in less than 2 minutes.
CALIBRATION/COOLDOWN LED DISPLAY
CODES
See table for definition of flashing LED's. If no
problems are found, the control functions normally.
CALIBRATION/DIAGNOSTICS TEST ENTRY
TO INITIATE TESTS:
²Set Blower motor ON HIGH
²Set Mode position to Panel
²Open all A/C outlets
²Set Temperature to Cold (Both slide pots if
equipped)
²Depress WASH and REAR WIPER button simul-
taneously for 5 Seconds (Until all LED's light)
RESULTS:
²All LED's will turn on for 5 Seconds
²Calibration Test is running when REAR WIPER
and INTERMITTENT are alternately flashing.
Cooldown test is running if A/C and RECIRC are
alternately flashing.
²Acceptable results is REAR WIPER LED is the
only LED flashing. Push Rear Wiper to exit.
²After all tests have passed, Calibration Diagnos-
tics and Cooldown can be run separately.
Fig. 7 Radio Bezel and HVAC Control, Rear Blower
Motor Switch and Zone Control
CALIBRATION/COOLDOWN LED DISPLAY
CODES
LED'S PASS/FAILCORREC-
TIVE
ACTION
NO LED'S
FLASHING-
NORMAL
OPERATIONPASSED
CALIBRATION,
DIAGNOSTICS
AND
COOLDOWNNONE
REAR WIPER AND
INTERMITTENT
LED'S FLASH
SIMULTANEOUSLYFAILED
CALIBRATION
DIAGNOSTICSRUN
CALIBRATION
TEST
A/C AND RECIRC
LED'S FLASH
SIMULTANEOUSLYFAILED
COOLDOWNRUN
COOLDOWN
TEST
REAR WIPER AND
INTERMITTENT
LED'S ARE
FLASHING
SIMULTANEOUSLY
A/C AND RECIRC
LED'S ARE
FLASHING
SIMULTANEOUSLYFAILED
CALIBRATION,
DIAGNOSTICS
AND FAILED
COOLDOWN
TESTRUN
CALIBRATION
TEST
NSHEATING AND AIR CONDITIONING 24 - 7
DIAGNOSIS AND TESTING (Continued)

eliminate all moisture in system. When the suction
gauge reads -88 kPa (- 26 in. Hg) vacuum or greater
for 45 minutes, close all valves and turn off vacuum
pump. If the system fails to reach specified vacuum,
the refrigerant system likely has a leak that must be
corrected. If the refrigerant system maintains speci-
fied vacuum for at least 30 minutes, start the vac-
uum pump, open the suction and discharge valves.
Then allow the system to evacuate an additional 10
minutes.
(3) Close all valves. Turn off and disconnect the
vacuum pump.
(4) The refrigerant system is prepared to be
charged with refrigerant.
THERMOCOUPLE PROBE
To diagnose the A/C system, a temperature probe is
required to measure liquid line temperature. The
clamp-on type K probe shown in this manual is avail-
able through the Chrysler Professional Service
Equipment (PSE) program. This probe is compatible
with temperature-measuring instruments that accept
Type K Thermocouples and have a miniature connec-
tor input. Other temperature probes are available
through aftermarket sources. All references in this
manual will reflect the use of the probe made avail-
able through the Professional Service Equipment pro-
gram.
In order to use the temperature probe, a digital
thermometer will be required. If a digital thermome-
ter is not available, an adapter is available through
the Professional Service Equipment program. It can
convert any standard digital multimeter into a ther-
mometer. This adapter is designed to accept any
standard K-type thermocouple.
If a digital multimeter is not available, it to can be
ordered through Professional Service Equipment pro-
gram.
STICKING HVAC CONTROL MODULE PUSH
BUTTONS
To service HVAC control module push buttons that
are sticking, spray between the buttons with Mopart
MP-50. The MP-50 is a all purpose lubricant for
mechanical and electrical uses. After spraying around
the push buttons wipe any excess off the radio bezel
and HVAC control module push buttons. Operate the
buttons to ensure that they are operating freely.
SYSTEM LEAK CHECKING
WARNING: R-134a SERVICE EQUIPMENT OR VEHI-
CLE A/C SYSTEM SHOULD NOT BE PRESSURE
TESTED OR LEAK TESTED WITH COMPRESSED
AIR. SOME MIXTURES OF AIR/R-134a HAVE BEEN
SHOWN TO BE COMBUSTIBLE AT ELEVATEDPRESSURES. THESE MIXTURES ARE POTENTIALLY
DANGEROUS AND MAY RESULT IN FIRE OR
EXPLOSION CAUSING INJURY OR PROPERTY
DAMAGE.
If the A/C system is not cooling properly, determine
if the refrigerant system is fully charged with
R-134a. This is accomplished by performing a system
Charge Level-Check or Fill. If while performing this
test A/C liquid line pressure is less than 207 kPa (30
psi) proceed to Empty Refrigerant System Leak Test.
If liquid line pressure is greater than 207 kPa (30
psi) proceed to low refrigerant level leak test. If the
refrigerant system is empty or low in refrigerant
charge, a leak at any line fitting or component seal is
likely. A review of the fittings, lines and components
for oily residue is an indication of the leak location.
To detect a leak in the refrigerant system, perform
one of the following procedures as indicated by the
symptoms.
WARNING: AVOID BREATHING A/C REFRIGERANT
AND LUBRICANT VAPOR OR MIST. EXPOSURE MAY
IRRITATE EYES, NOSE AND THROAT. USE ONLY
APPROVED SERVICE EQUIPMENT MEETING SAE
REQUIREMENTS TO DISCHARGE R-134a SYSTEM.
IF ACCIDENTAL SYSTEM DISCHARGE OCCURS,
VENTILATE WORK AREA BEFORE RESUMING SER-
VICE.
EMPTY REFRIGERANT SYSTEM LEAK TEST
(1) Evacuate the refrigerant system to the lowest
degree of vacuum possible (about 28 in Hg.). Deter-
mine if the system holds a vacuum for 15 minutes. If
vacuum is held, a leak is probably not present. If sys-
tem will not maintain vacuum level, proceed with
this procedure.
(2) Prepare a .284 Kg. (10 oz.) refrigerant charge
to be injected into the system.
(3) Connect and dispense .284 Kg. (10 oz.) of
refrigerant into the evacuated refrigerant system.
(4) Proceed to step two of Low Refrigerant Level
Leak Test.
LOW REFRIGERANT LEVEL LEAK TEST
(1) Determine if there is any (R-134a) refrigerant
in the system. Use the scan tool (DRB) under the
menu Systems Sensors±A/C Pressure test or pressure
gauge liquid line temperature partial charge check.
See system charge level check or fill for procedure.
(2) Position the vehicle in a wind free work area.
This will aid in detecting small leaks.
(3) Bring the refrigerant system up to operating
temperature and pressure. This is done by allowing
the engine to run for five minutes with the system
set to the following:
NSHEATING AND AIR CONDITIONING 24 - 19
SERVICE PROCEDURES (Continued)

actuators, HVAC control module and its linkages. In-
vehicle calibration can be entered from the control's
front panel. If the REAR WIPE and INTERMIT-
TENT LED's flash simultaneously when Ignition is
cycled ON, the actuators have not been calibrated or
during the previous calibration a failure occurred
(Fig. 5) and (Fig. 6). Diagnostics will always occur
during Calibration Diagnostic and Cooldown test.DIAGNOSTICS
During the Actuator calibration, diagnostics are
performed on the actuators and evaporator tempera-
ture Fin Sensor. Once diagnostics are completed the
REAR WIPER and INTERMITTENT LED's will flash
to indicate either a successful calibration or the
appropriate fail code(s). At this time manual testing
of the Blend, Mode and Driver (if equipped) potenti-
ometers can be performed. If a failure is detected
during Diagnostics a fault will be set in the control.
When Ignition is cycled OFF and then ON or Diag-
nostics is aborted, the REAR WIPER and INTER-
MITTENT LED's will flash simultaneously showing
that a failure has occurred. The control will not indi-
cate the fail code, but only that a failure had
occurred during the last diagnostics test. The only
way to clear the failure codes is repeat the Calibra-
tion Diagnostic and Cooldown test, after all repairs
are completed.
COOLDOWN TEST
This test has been designed for performance test-
ing of the A/C system at the manufacturing facility. If
the HVAC control module is replaced, the Cooldown
test will occur during Calibration test. Cooldown will
not occur on Heater Only units. During the Cooldown
test the control will monitor the temperature of the
Fin Sensor. The A/C system must be able to bring the
evaporator temperature down a predetermined mini-
mum amount in less than 2 minutes.
CALIBRATION/COOLDOWN LED DISPLAY
CODES
See chart for definition of flashing LED's. If no
problems are found, the control functions normally.
CALIBRATION/DIAGNOSTICS TEST ENTRY
TO INITIATE TESTS:
²Set Blower motor ON HIGH
²Set Mode position to Panel
²Open all A/C outlets
²Set Temperature to Cold (Both slide pots if
equipped)
²Depress WASH and REAR WIPER button simul-
taneously for 5 Seconds (Until all LED's light)
RESULTS:
²All LED's will turn on for 5 Seconds
²Calibration Test is running when REAR WIPER
and INTERMITTENT are alternately flashing.
Cooldown test is running if A/C and RECIRC are
alternately flashing.
²Acceptable results is REAR WIPER LED is the
only LED flashing. Push Rear Wiper to exit.
²After all tests have passed, Calibration Diagnos-
tics and Cooldown can be run separately.
Fig. 5 Radio Bezel and HVAC Control
Fig. 6 Radio Bezel and HVAC Control, Rear Blower
Motor Switch and Zone Control
24 - 6 HEATING AND AIR CONDITIONINGNS/GS
DIAGNOSIS AND TESTING (Continued)