1999 DODGE NEON Service Repair Manual

AUDIO SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSE CORRECTION
NO AUDIO. 1. FUSE FAULTY.
2. RADIO CONNECTOR
FAULTY.
3. WIRING FAULTY.
4. GROUND FAULTY.
5. RADIO FAULTY.
6. SPEAKERS FAULTY.1. CHECK RADIO FUSES IN FUSEBLOCK MODULE. REPLACE
FUSES, IF REQUIRED.
2. CHECK FOR LOOSE OR CORRODED RADIO CONNECTOR.
REPAIR, IF REQUIRED.
3. CHECK FOR BATTERY VOLTAGE AT RADIO CONNECTOR.
REPAIR WIRING, IF REQUIRED.
4. CHECK FOR CONTINUITY BETWEEN RADIO CHASSIS AND
A KNOWN GOOD GROUND. THERE SHOULD BE
CONTINUITY. REPAIR GROUND, IF REQUIRED.
5. EXCHANGE OR REPLACE RADIO, IF REQUIRED.
6. SEE SPEAKER DIAGNOSIS, IN THIS GROUP.
NO DISPLAY. 1. FUSE FAULTY.
2. RADIO CONNECTOR
FAULTY.
3. WIRING FAULTY.
4. GROUND FAULTY.
5. RADIO FAULTY.1. CHECK RADIO FUSES IN FUSEBLOCK MODULE. REPLACE
FUSES, IF REQUIRED.
2. CHECK FOR LOOSE OR CORRODED RADIO CONNECTOR.
REPAIR, IF REQUIRED.
3. CHECK FOR BATTERY VOLTAGE AT RADIO CONNECTOR.
REPAIR WIRING, IF REQUIRED.
4. CHECK FOR CONTINUITY BETWEEN RADIO CHASSIS AND
A KNOWN GOOD GROUND. THERE SHOULD BE
CONTINUITY. REPAIR GROUND, IF REQUIRED.
5. EXCHANGE OR REPLACE RADIO, IF REQUIRED.
NO MEMORY. 1. FUSE FAULTY.
2. RADIO CONNECTOR
FAULTY.
3. WIRING FAULTY.
4. GROUND FAULTY.
5. RADIO FAULTY.1. CHECK IGNITION-OFF DRAW FUSE. REPLACE FUSE, IF
REQUIRED.
2. CHECK FOR LOOSE OR CORRODED RADIO CONNECTOR.
REPAIR, IF REQUIRED.
3. CHECK FOR BATTERY VOLTAGE AT RADIO CONNECTOR.
REPAIR WIRING, IF REQUIRED.
4. CHECK FOR CONTINUITY BETWEEN RADIO CHASSIS AND
A KNOWN GOOD GROUND. THERE SHOULD BE
CONTINUITY. REPAIR GROUND, IF REQUIRED.
5. EXCHANGE OR REPLACE RADIO, IF REQUIRED.
POOR RADIO
RECEPTION.1. ANTENNA FAULTY.
2. GROUND FAULTY.
3. RADIO FAULTY.1. SEE ANTENNA DIAGNOSIS, IN THIS GROUP. REPAIR OR
REPLACE ANTENNA, IF REQUIRED.
2. CHECK FOR CONTINUITY BETWEEN RADIO CHASSIS AND
A KNOWN GOOD GROUND. THERE SHOULD BE
CONTINUITY. REPAIR GROUND, IF REQUIRED..
3. EXCHANGE OR REPLACE RADIO, IF REQUIRED.
NO/POOR TAPE
OPERATION.1. FAULTY TAPE.
2. FOREIGN OBJECTS
BEHIND TAPE DOOR.
3. DIRTY CASSETTE
TAPE HEAD.
4. FAULTY TAPE DECK.1. INSERT KNOWN GOOD TAPE AND TEST OPERATION.
2. REMOVE FOREIGN OBJECTS AND TEST OPERATION.
3. CLEAN HEAD WITH MOPAR CASSETTE HEAD CLEANER.
4. EXCHANGE OR REPLACE RADIO, IF REQUIRED.
NO COMPACT
DISC
OPERATION1. FAULTY CD.
2. FOREIGN MATERIAL
ON CD.
3. CONDENSATION ON
CD OR OPTICS.
4. FAULTY CD PLAYER.1. INSERT KNOWN GOOD CD AND TEST OPERATION.
2. CLEAN CD AND TEST OPERATION.
3. ALLOW TEMPERATURE OF VEHICLE INTERIOR TO
STABILIZE AND TEST OPERATION.
4. EXCHANGE OR REPLACE RADIO, IF REQUIRED.
8F - 2 AUDIO SYSTEMPL
DIAGNOSIS AND TESTING (Continued)

ANTENNA
The antenna has a short cable which connects into
the instrument panel harness. The connection is
made on the right side of the instrument panel.
Antenna performance may be tested by substitut-
ing a known good antenna. It is also possible to
check short or open circuits with an ohmmeter or
continuity light once the antenna cable is discon-
nected from the radio as follows:
(1) Continuity should be present between the
antenna mast and radio end pin of antenna cable
plug (Fig. 1).
(2) No continuity should be observed or a very
high resistance of several megohms between the
ground shell of the connector and radio end pin.
(3) Continuity should be observed between the
ground shell of the connector and the mounting hard-
ware on the vehicle antenna. The wheel well splash
shield must be removed for access to the antenna
that is mounted on load beam.
BENCH TEST FOR ANTENNA MALFUNCTION
It is also possible to check short or open circuits
with an ohmmeter or continuity light once the
antenna has been removed from the vehicle.
(1) Continuity should be present between the tip of
the mast and radio lead in (Fig. 2).
(2) No continuity should be observed or a very
high resistance of several megohms between the
ground shell of the connector and radio end pin.
(3) Continuity should be observed between the
ground shell of the connector and the mounting
bracket.Wiggle cable over its entire length to
reveal intermittent short or open circuits dur-
ing step 1, 2 and 3.
REMOVAL AND INSTALLATION
ANTENNA
REMOVAL
(1) Remove antenna mast by unscrewing mast
from antenna body (Fig. 3).
(2) Locate the antenna lead disconnect in the
instrument panel wire harness above the right kick
panel. Disconnect the antenna cable from cable lead.
(3) Unfasten push pins from the rear of the plastic
inner fender shield and move shield to gain access to
mounting screws (Fig. 4).
(4) Remove mounting screw and remove antenna
base and cable assembly from under the fender.
INSTALLATION
(1) Align antenna adapter tongue with grove in
the fender hole and push adapter into fender.
(2) From under the fender, push the antenna base
and cable assembly through the adapter in the
fender. Tighten mounting screw to 7 N´m (75 in. lbs.).
(3) Seat the grommet in the side panel and con-
nect the cable to the instrument panel harness con-
nector.
(4) Install the plastic inner fender shield.
(5) Connect the antenna cable to the cable lead.
Fig. 2 Antenna Bench Test Points
Fig. 3 Antenna Mast Removal
Fig. 1 Antenna Test Points
PLAUDIO SYSTEM 8F - 3
DIAGNOSIS AND TESTING (Continued)

RADIO
REMOVAL
(1) Remove center module bezel (Fig. 5).
(2) Remove two mounting screws on the radio and
pull out of instrument panel (Fig. 6).
(3) Disconnect wiring and antenna cable and
remove ground wire from radio.
INSTALLATION
For installation reverse the above procedures.
INSTRUMENT PANEL SPEAKER
REMOVAL
(1) Remove instrument panel top cover and cluster
bezel (Fig. 7). Refer to Group 8E, Instrument Panel
and Systems, for removal procedures.
(2) Remove speaker retaining screws.
(3) Remove speaker and disconnect wire connector.
INSTALLATION
For installation reverse the above procedures.
FRONT DOOR SPEAKER
REMOVAL
(1) Remove door trim panel, refer to Group 23,
Body.
(2) Remove three speaker retaining screws (Fig. 8).
(3) Remove speaker assembly and disconnect wire
connector.
INSTALLATION
For installation reverse the above procedures.
Fig. 5 Center Module Bezel
Fig. 4 Antenna Mounting
Fig. 6 Radio Assembly
Fig. 7 Instrument Panel Speakers
8F - 4 AUDIO SYSTEMPL
REMOVAL AND INSTALLATION (Continued)

REAR SHELF SPEAKER(S)
REMOVAL
(1) Remove rear seat and seat back, refer to Group
23, Body for seat removal procedures. Remove seat
cushion, seat back and seat belt anchor bolts.
(2) Pry out the seat belt trim bezel along the rear-
ward edge.
(3) Partially remove the shelf trim panel slipping
it down to the seat back position.
(4) Remove four speaker retaining screws (Fig. 9).(5) Remove speaker and disconnect wire connector.
INSTALLATION
For installation reverse the above procedures. Posi-
tion speakers so that the wire connectors are point-
ing to the drivers side of car. Tighten the seat belt
anchor bolts to the proper torque refer to Group 23,
Body.
Fig. 8 Front Door Speaker
Fig. 9 Rear Shelf Speakers
PLAUDIO SYSTEM 8F - 5
REMOVAL AND INSTALLATION (Continued)

HORNS
CONTENTS
page page
DESCRIPTION AND OPERATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
HORN RELAY........................... 2
HORN SWITCH.......................... 2
HORN................................. 1SYSTEM TEST.......................... 2
REMOVAL AND INSTALLATION
HORN RELAY........................... 4
HORN SWITCHES........................ 4
HORN................................. 4
DESCRIPTION AND OPERATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
STEERING WHEEL OR COLUMN REMOVAL PROCE-
DURES.
The horn circuit consists of a horn switch, horn
relay, and horn. The horn circuit feed is from the fuse
to the horn relay in the Power Distribution Center
(PDC). The PDC is mounted on the battery tray.
When the horn switch is depressed, it completes the
ground circuit. The horn relay coil closes contacts
and allows current to flow to the horn. The horn is
grounded to the headlamp ground connection (Fig. 1)
.
HORN SWITCH
The horn switch is mounted between the outer and
inner cover of the Driver Airbag Module (Fig. 2).
When the Driver Airbag is pressed the horn switch
makes contact to ground. The ground signal is car-
ried to the horn relay and the horn sounds.
(1) The horn switch grounds to the airbag housing.(2) If horn does not sound check for corrosion:
²Horn wire
²Horn switch ground connected to airbag metal
housing
²Airbag to steering wheel
²Ensure horn wire is properly connected and
insulator is in place on wire
(3) Refer to Group 8W, Wiring Diagrams if wire
circuit needs to be repaired.
DIAGNOSIS AND TESTING
HORN
(1) Disconnect wire connector at horn.
(2) Using a voltmeter, connect one lead to ground
terminal and the other lead to the positive wire ter-
minal (Fig. 3).
(3) Depress the horn switch, battery voltage
should be present.
(4) If no voltage, refer to Horn System Test. If volt-
age is OK, go to Step 5.
Fig. 1 Horn System
Fig. 2 Horn Switch
PLHORNS 8G - 1

(5) Using ohmmeter, test ground wire for continu-
ity to ground.
(6) If no ground repair as necessary.
(7) If wires test OK and horn does not sound,
replace horn.
HORN RELAY
(1) Remove horn relay.
(2) Using ohmmeter, test for continuity between
ground and circuit 65 of horn relay.
(a) When the horn switch is not depressed, no
continuity should be present.
(b) Continuity to ground when horn switch is
depressed.
(c) If continuity is not correct repair horn switch
or wiring as necessary, refer to Group 8W, Wiring
Diagrams.
(3) Insert a jumper wire between circuit 63 and 66
of the Power Distribution Center.
(a) If horn sounds replace relay.
(b) If the horn does not sound, install horn relay
and refer to Horn Test.
(4) Using voltmeter, test voltage at:
(a) Circuit 62 and 66 test for battery voltage
from fuse C to body ground.
(b) If voltage is incorrect repair as necessary.
Refer to Group 8W, Wiring Diagrams.
(5) Check relay for 70 to 75 ohms resistance from
terminal 85 to 86 (Fig. 4). If resistance not OK,
replace relay.
HORN SWITCH
(1) Remove horn relay from the Power Distribution
Center.
(2) Using ohmmeter, connect one lead to ground
and the other lead to cavity 65 of the power distribu-
tion center (Fig. 5).
(3) Depress horn switch, should have continuity. If
no continuity go to Step 4.(4) Test continuity at horn switch, remove the
Driver Airbag Module. Refer to Driver Airbag Module
Removal and Installation procedures.
(5) Using ohmmeter, connect one lead to the air-
bag module ground and the other lead to B+ wire
(Fig. 6).
(6) Depress horn switch, and the meter should
show continuity. If no continuity, replace the Driver
Airbag Module. If OK, repair as necessary.
SYSTEM TEST
Refer to Horn System Test Table. If the horn does
not sound, check horn fuse located in the Power Dis-
tribution Center. If the fuse is blown, replace with
Fig. 3 Horn and Connector
Fig. 4 Horn and Connector
Fig. 5 Power Distribution Center
Fig. 6 Test Horn Switch - Driver Airbag Module
8G - 2 HORNSPL
DIAGNOSIS AND TESTING (Continued)

the correct fuse. If the horn fail to sound and the
new fuse blows when depressing the horn switch, a
short circuit in the horn or the horn wiring between
the fuse terminal and the horn is responsible, or a
defective horn switch allowed the horn to burn out is
responsible.
If the fuse is OK, test horn relay refer to Horn
Relay Test.
If the relay is OK, test horn refer to Horn Test.CAUTION: Continuous sounding of horn may
cause horn relay to fail.
Should the horn sound continuously:
²Unplug the horn relay from Power Distribution
Center.
²Refer to Horn Relay Test.
Refer to Group 8W, wiring Disgrams for circuit and
wiring information.
HORN SYSTEM TEST
CONDITION POSSIBLE CAUSE CORRECTION
Horn sounds continuously.
NOTE: Immediately unplug
horn relay in the Power
Distribution Center (PDC)(1) Faulty horn relay.
(2) Horn control circuit to relay
shorted to ground.
(3) Pinched horn switch wire under
Driver Airbag Module.
(4) Defective horn switch(1) Refer to horn relay test.
(2) Check terminal 65 in PDC for
continuity to ground. If continuity to ground
indicates:
(a) Steering Wheel horn switch/lead
shorted to ground.
(b) Wiring harness shorted to ground. Find
the short and repair as necessary.
(3) Replace Driver Airbag Module.
(4) Replace Driver Airbag Module.
Horn sound intermittently as
the steering wheel is turned.(1) Horn relay control circuit X3 is
shorted to ground inside steering
wheel.
(2) Pinched horn switch wire under
Driver Airbag Module
(3) Defective horn switch(1) Remove Driver Airbag Module and/or
steering wheel. Check for rubbing or loose
wire/connector, repair as necessary.
(2) Replace Driver Airbag Module.
(3) Replace Driver Airbag Module.
Horn does not sound (1) Check fuse 23 in PDC
(2) No Voltage at horn RELAY
TERMINALS 62 & 66, and fuse is
OK.
(3) Open circuit from terminal 65 of
the horn relay to horn switch X3
circuit.
(4) Defective or damaged horn.
(5) Defective horn switch(1) Replace fuse if blown repair as
necessary.
(2) No voltage, repair PDC as necessary.
(3) Repair circuit as necessary.
(4) Voltage at horn when horn switch is
pressed, replace horn.
(5) Replace Driver Airbag Module.
Fuse blows when horn
sounds(1) Short circuit in horn or horn
wiring(1) Remove horn relay, check for shorted
horn or horn wiring. Disconnect horn wire
harness to isolate short and repair as
necessary.
Fuse blows without blowing
horn(1) Short circuit (1) Remove relay, install new fuse, if fuse
does not blow replace horn relay. If fuse
blows with relay removed, check for short
to ground with ohmmeter on circuit
between terminals 62 & 66 and the fuse
terminal. Repair as necessary.
NOTE: For wiring repairs
refer to Group 8W, Wire
Diagrams.
PLHORNS 8G - 3
DIAGNOSIS AND TESTING (Continued)