1999 DODGE NEON horn

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)

REMOVAL AND INSTALLATION
HORN
REMOVAL
Disconnect connector and remove horn attaching
nuts from the bumper support bracket (Fig. 7).
INSTALLATION
For installation, reverse the above procedures.
Insure that the horn projector does not touch bumper
reinforcement or the sound output may be altered.
HORN RELAY
REMOVAL
(1) Remove the Power Distribution Center cover
and locate the horn relay.
(2) Remove the horn relay (Fig. 5).
INSTALLATION
For installation, reverse the above procedures.
HORN SWITCHES
The Horn Switch is part of the Driver Airbag Mod-
ule. Refer to Driver Airbag Module Removal and
Installation procedures in Group 8M.
Fig. 7 Horn Location
8G - 4 HORNSPL

TURN SIGNAL AND FLASHERS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DESCRIPTION AND OPERATION
COMBINATION FLASHER.................. 1
HAZARD WARNING SYSTEM............... 1DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH................ 2
MULTI-FUNCTION SWITCH TEST............ 2
REMOVAL AND INSTALLATION
MULTI-FUNCTION SWITCH................ 4
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
AIRBAG REMOVAL PROCEDURES.
The turn signals are part of the multi-function
switch. Which contains:
²Electrical circuitry for turn signals
²Hazard warning switch
²Headlamp beam select switch
²Headlamp optical horn
The integrated switch assembly is mounted to the
left hand side of the steering column. When the
driver wishes to signal his intentions to change direc-
tion of travel, he moves the lever upward to cause
the right signals to flash and downward to cause the
left signals to flash. After completion of a turn the
system is deactivated automatically. As the steering
wheel returns to the straight ahead position, a can-
celing cam molded to the clockspring mechanism
comes in contact with the cancel actuator on the turn
signal multi-function switch assembly. The cam lobe,
pushing on the cancel actuator, returns the switch to
the off position.
If only momentary signaling such as indication of a
lane change is desired, the switch is actuated to a
left or right intermediate detent position. In this
position the signal lamps flash as described above,
but the switch returns to the OFF position as soon as
the lever is released.
When the system is activated, one of two indicator
lamps mounted in the instrument cluster flashes in
unison with the turn signal lamps, indicating to the
driver that the system is operating.
DESCRIPTION AND OPERATION
HAZARD WARNING SYSTEM
The hazard warning system is actuated by a slide
button located on the top of the steering column
between the steering wheel and the instrument
panel. The hazard switch is identified with a double
triangle on front of the button.
COMBINATION FLASHER
The turn signal flasher and the hazard warning
flasher are combined into one unit called a combina-
tion flasher (combo-flasher). The combo- flasher con-
trols the flashing of the hazard warning system and
the turn signal system. An inoperative bulb or incom-
plete turn signal circuit will cause the flasher rate to
double.
The combo-flasher is located on the fuse block. The
combo-flasher is black in color for ease of identifica-
tion (Fig. 1).
Fig. 1 Combo-Flasher
PLTURN SIGNAL AND FLASHERS 8J - 1

DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH
The multi-function switch contains electrical cir-
cuitry for turn signal, hazard warning, headlamp
beam select, headlamp optical horn. This integratedswitch assembly is mounted to the left hand side of
the steering column. Should any function of the
switch fail, the entire switch assembly must be
replaced. Refer to Multi-function Switch Test Table
for diagnosis.
MULTI-FUNCTION SWITCH TEST
CONDITION POSSIBLE CAUSES CORRECTION
TURN SIGNAL FLASHES AT TWICE
THE NORMAL RATE.(1) FAULTY EXTERNAL LAMP.
(2) POOR GROUND AT LAMP.
(3) OPEN CIRCUIT IN WIRING TO
EXTERNAL LAMP.
(4) FAULTY CONTACT IN SWITCH.(1) REPLACE LAMP.
(2) CHECK AND/OR REPAIR WIRING
(3) REPAIR WIRING HARNESS.
CHECK CONNECTORS.
(4) REPLACE MULTI FUNCTION
SWITCH.
INDICATOR LAMP ILLUMINATED
BRIGHTLY, EXTERNAL LAMP
GLOWS DIMLY AT A RAPID RATE.(1) LOOSE OR CORRODED
EXTERNAL LAMP CONNECTION.
(2) POOR GROUND CIRCUIT AT
EXTERNAL LAMP.(1) REPLACE SOCKET CONNECTION.
(2) REPAIR WIRING HARNESS.
CHECK CONNECTORS.
HAZARD WARMING SYSTEM DOES
NOT FLASH.(1) FAULTY FUSE.
(2) FAULTY FLASHER.
(3) OPEN CIRCUIT IN FEED WIRE TO
SWITCH.
(4) FAULTY CONTACT IN SWITCH.
(5) OPEN OR GROUNDED CIRCUIT
IN WIRING TO EXTERNAL LAMPS.(1) REPLACE FUSE.
(2) REPLACE FLASHER.
(3) REPAIR WIRING HARNESS,
CHECK CONNECTORS.
(4) REPLACE MULTI FUNCTION
SWITCH.
(5) REPAIR WIRING HARNESS.
INDICATOR LAMP ILLUMINATES
BRIGHTLY, EXTERNAL LAMP DOES
NOT LIGHT.(1) OPEN CIRCUIT IN WIRE TO
EXTERNAL LAMP.
(2) BURNED OUT LAMP.(1) REPAIR WIRING HARNESS.
(2) REPLACE LAMP.
SYSTEM DOES NOT FLASH ON
EITHER SIDE.(1) FAULTY FUSE.
(2) FAULTY FLASHER UNIT.
(3) LOOSE BULKHEAD CONNECTOR.
(4) LOOSE OR FAULTY REAR
WIRING HARNESS OR TERMINALS.
(5) OPEN CIRCUIT TO FLASHER
UNIT.
(6) OPEN CIRCUIT IN FEED WIRE TO
TURN SIGNAL SWITCH.
(7) FAULTY SWITCH CONNECTION IN
SWITCH.
(8) OPEN OR GROUNDED CIRCUIT
IN WIRING TO EXTERNAL LAMPS.(1) REPLACE FUSE.
(2) REPLACE FLASHER.
(3) TIGHTEN CONNECTOR.
(4) REPAIR WIRING HARNESS
(5) CHECK CONNECTORS, REPAIR
WIRING HARNESS.
(6) CHECK CONNECTORS, REPAIR
WIRING HARNESS.
(7) REPLACE MULTI FUNCTION
SWITCH.
(8) REPAIR WIRING HARNESS.
SYSTEM DOES NOT CANCEL
AFTER COMPLETION OF THE
TURN.(1) BROKEN CANCELLING FINGER
ON SWITCH.
(2) BROKEN OR MISSING
CANCELLING CAM ON
CLOCKSPRING.(1) REPLACE MULTI FUNCTION
SWITCH.
(2) REPLACE CLOCKSPRING.
EXTERNAL LAMPS OPERATE
PROPERLY, NO INDICATOR LAMP
OPERATION.(1) FAULTY INDICATOR LAMP IN
INSTRUMENT CLUSTER.(1) REPLACE LAMP.
8J - 2 TURN SIGNAL AND FLASHERSPL

shift lever and the park brake lever (Fig. 1). The saf-
ing sensor provides confirmation of a crash, but does
not discriminate severity. The ACM monitors the sys-
tem to determine the system readiness. The ACM
contains on-board diagnostics, and will illuminate the
AIRBAG warning lamp in the cluster when a fault
occurs. The warning equipment is tested for six to
eight seconds every time the vehicle is started.
CLOCKSPRING
The clockspring is mounted to the steering column
behind the steering wheel. The clockspring is used to
maintain a continuous electrical circuit between the
wiring harness and the:
²Driver's airbag module
²Speed control switches
²Horn switch
The clockspring consists of a flat, ribbon like, elec-
trically conductive tape which winds and unwinds
with the steering wheel rotation.
DRIVER AND PASSENGER AIRBAG MODULE
WARNING: NEVER DISASSEMBLE THE DRIVER OR
PASSENGER AIRBAG MODULE, THERE ARE NO
SERVICEABLE PARTS WITH IN THE MODULES.
The Driver Airbag Module located on the steering
wheel is the most visible part of the system (Fig. 2).
The airbag module contains a housing to which the
cushion, inflator and cover are attached to.
The driver side inflator assembly is mounted from
the back of the module housing. When supplied with
the proper electrical signal the inflator assembly will
produce a gas and discharge it directly into the cush-
ion. A protective cover is fitted to the front of the
Driver Airbag Module and forms a decorative cover
in the center of the steering wheel. The Driver Air-
bag Module is mounted directly to the steering
wheel.The Passenger Airbag Module is located beneath
the decorative cover of the instrument panel, facing
the passenger seat (Fig. 3).
The passenger inflator assembly is within the mod-
ule housing. The module is mounted to the instru-
ment panel retainer and support structure. When
supplied with the proper electrical signal the inflator
will produce a gas and discharge it directly into the
cushion. A protective cover is fitted into the instru-
ment panel over the airbag module and forms a dec-
orative cover.
Fig. 1 Airbag Control Module Location
Fig. 2 Driver Airbag
Fig. 3 Passenger Airbag
8M - 2 RESTRAINT SYSTEMPL
DESCRIPTION AND OPERATION (Continued)

CLOCKSPRING
REMOVAL
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE (GROUND) CABLE BEFORE
BEGINNING ANY AIRBAG SYSTEM COMPONENT
REMOVAL OR INSTALLATION PROCEDURE. THIS
WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO
DISCONNECT BATTERY COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY. ALLOW SYSTEM CAPACITOR
TO DISCHARGE FOR 2 MINUTES BEFORE REMOV-
ING ANY AIRBAG COMPONENTS.
(1) Place the front road wheels in the straight
ahead position then:
²Rotate the steering wheel half turn (180
degrees) to the right (clockwise)
²Lock column with ignition lock cylinder.
(2) Disconnect and isolate the battery negative
cable.
(3) Wait two minutes for the reserve capacitor to
discharge before removing non-deployed module.
(4) Remove speed control switch mounting screws,
switches and disconnect the wire connectors or
remove covers.
(5) Remove the Driver Airbag Module attaching
bolts from under the speed control switches or covers.
(6) Lift module and disconnect the airbag and horn
wire connectors.
(7) Remove the steering wheel, refer to Steering
Wheel removal procedures.
(8) Remove upper and lower steering column
shrouds to gain access to clockspring wiring.
(9) Disconnect the 2-way and 4-way connectors
between the clockspring and the instrument panel
wiring harness at the base of the clockspring (Fig.
21).
(10) Unlatch and remove clockspring assembly
from steering shaft. The clockspring cannot be
repaired, and must be replaced if faulty.
(11) Rotate clockspring rotor a half turn (180
degrees) to the left (counter clockwise).
(12) Lock the clockspring rotor in the center posi-
tion as follows: Insert a paper clip wire through the
hole in the rotor at the 10 O'clock position and bend
to prevent it from falling out.
INSTALLATION
(1) Confirm that:
²The steering wheel position is a half turn (180
degrees) to the right (clockwise)
²The column is locked with the ignition cylinder
lock.
²Check that the turn signal stalk is in the neu-
tral position²When reusing the clockspring, remove locking
wire and rotate clockspring rotor one half turn (180
degrees) to the right (clockwise). Locate the clock-
spring on the steering shaft and push down on the
rotor until the clockspring is fully seated on the
steering column.
²When installing a new clockspring remove gre-
nade pin and rotate clockspring rotor one half turn
(180 degrees) to the right (clockwise). Locate clock-
spring on the steering shaft and push down on the
rotor until the clockspring is fullly seated on the
steering wheel.
(2) Connect the clockspring to the instrument
panel harness, ensure wiring is properly routed.
Then check that the connectors, locking tabs are
properly engaged and the halo lamp wire is in posi-
tion.
(3) Install steering column shrouds. Be sure all
wires are inside of shrouds.
(4) Install steering wheel ensuring the flats on hub
align with the clockspring. Pull the horn, airbag and
speed control leads through the larger slot. Ensure
leads do not get pinched under the steering wheel.
(5) Route speed control wires under and behind
the airbag module mounting tabs.
(6) Connect the horn lead wire and the airbag lead
wire to the airbag module.
(7) Install the airbag module and tighten bolts to
12 to 14 N´m (105 to 125 in. lbs.) torque.
(8) Connect the speed control wires to the switches
and install switches. Tighten screws to 2 N´m (20 in.
lbs.) torque.
(9) Do not connect the battery negative cable.
Refer to Diagnosis and Testing for Airbag System
Test procedures.
Fig. 21 Clockspring
8M - 8 RESTRAINT SYSTEMPL
REMOVAL AND INSTALLATION (Continued)