1997 DODGE NEON Headlamp switch

Downloaded from www.Manualslib.com manuals search engine 13FUSE10A
14
13
BATT A0
SPEEDOMETERCHIMELOW
FUEL
LEVEL
INDICATOR
LAMP
TACHOMETER
DRIVERODOMETER
DRIVER
000000
TACHOMETERODOMETER
M1
18
PK
M1
22
PK
S203
13C103
7366 TACHOMETER
SIGNAL
POWERTRAIN
CONTROL
MODULE
G21
20
GY/LB
G21
22
GY/LB
G7
20
WT/OR
G7
22
WT/OR
85C103
G7
20
WT/ORG7
18
WT/OR
3
2C160VEHICLE
SPEED
SENSOR
C2
5
HEADLAMP
SWITCH
0 OFF
1 PARK
2 HEAD
C110C17C16
VEHICLE
SPEED
SENSOR
SIGNAL
0
12
6 51 2
KEY-IN
SWITCH
LEFT
FRONT
DOOR
JAMB
SWITCH
M1
22
PK
POWER
DISTRIBUTION
CENTER
INSTRUMENT
CLUSTER
G26
20
LB
G26 20LB
G16 20BK/LBG16
20
BL/LB
9C230
BL/LB20 G16
C1 C1
SIGNAL SENSORSPEED VEHICLE
(8W-10-8)
(8W-10-8)(8W-30-8)
(8W-30-11)(8W-30-8)
(8W-50-2) (8W-10-4) (8W-10-4)
PL-RHD8W-40 INSTRUMENT CLUSTER 8W - 40 - 3
PLR04002978W-1

Downloaded from www.Manualslib.com manuals search engine 8W-40 INSTRUMENT CLUSTER
INDEX
page page
DESCRIPTION AND OPERATION
AIRBAG WARNING LAMP.................. 8
ANTI-LOCK WARNING LAMP............... 9
BRAKE WARNING INDICATOR LAMP......... 8
CHARGE INDICATOR LAMP................ 8
ENGINE COOLANT TEMPERATURE GAUGE . . . 7
FUEL GAUGE........................... 7
HEADLAMP ON CHIME.................... 8
HELPFUL INFORMATION.................. 9
HIGH BEAM INDICATOR LAMP.............. 8
INSTRUMENT CLUSTER.................. 7KEY-IN CHIME.......................... 8
LOW FUEL LAMP........................ 8
LOW OIL PRESSURE LAMP................ 8
ODOMETER............................ 8
RIGHT AND LEFT TURN
SIGNAL INDICATORS................... 8
SEAT BELT WARNING INDICATOR........... 8
SERVICE ENGINE SOON LAMP............. 8
SPEEDOMETER......................... 7
TACHOMETER.......................... 7
DESCRIPTION AND OPERATION
INSTRUMENT CLUSTER
The Instrument Cluster, located on the right side
of the instrument panel, provides the operator with
gauges and warning lamps relating to vehicle opera-
tion. All gauges in the standard and optional cluster
are magnetic type and logic driven.
Battery voltage for the clusters warning lamps and
gauges is provided on the G5 circuit. This circuit con-
nects from the fuse block and is protected bya5amp
fuse located in cavity 11. The cluster is powered only
when the ignition switch is in the START or RUN
position. The cluster is also powered on initial driv-
er's door opening.
Illumination lamps, internal to the cluster, receive
battery voltage on the E2 circuit from the 4 amp fuse
located in cavity 12 of the fuse block. This circuit is
HOT only when the headlamp switch is in the ON
position. Grounding for the cluster is provided on the
Z3 circuit and terminates at the instrument panel
left center support.
The M1 circuit also feeds the cluster through a 10
amp fuse in the Power Distribution Center (PDC).
This fuse is HOT at all times and also used to power
the underhood lamp, and the interior lamps. The
fuse is also lifted OPEN during vehicle shipping to
reduce battery draw.
SPEEDOMETER
The speedometer and odometer receive their infor-
mation on the G7 circuit from the Vehicle Speed Sen-
sor (VSS) on manual and 3±spd automatic
transmission applications. The G7 circuit also pro-
vides a signal to the Powertrain Control Module
(PCM).Logic internal to the instrument cluster adjusts the
position of the gauge pointer to the correct vehicle
speed using the signal on the G7 circuit.
TACHOMETER
The tachometer is connected to the Powertrain
Control Module (PCM) on the G21 circuit. It uses
solid state circuity to decode the ignition pulses
received from the PCM to adjust the gauge pointer to
the proper position.
ENGINE COOLANT TEMPERATURE GAUGE
The temperature gauge is connected to the engine
coolant temperature sensor on the G20 circuit. The
engine coolant temperature sensor for the gauge is a
combination unit. One side of the unit is used for the
Powertrain Control Module (PCM) and the other side
for the cluster. The sending unit is case grounded to
the engine.
The logic driven gauge moves in response to the
measured resistance of the engine coolant tempera-
ture sending unit.
FUEL GAUGE
The fuel level gauge is connected to the fuel pump
module on the G4 circuit. The fuel pump module con-
tains the fuel pump and a variable resistor for the
gauge. Grounding for the fuel pump module is pro-
vided on the Z2 circuit and terminates at the left
rear wheel house.
The logic driven gauge moves in response to the
measured resistance of the fuel tank sending unit.
The fuel level sensor contains a variable resistor.
As the position of the float arm on the level sensor
changes, the resistor changes the current flow
through the fuel gauge circuit. A change in current
flow alters the magnetic field in the fuel gauge which
changes the pointer position.
PL8W - 40 INSTRUMENT CLUSTER 8W - 40 - 7

Downloaded from www.Manualslib.com manuals search engine ODOMETER
The speedometer and odometer receive their infor-
mation on the G7 circuit from the Vehicle Speed Sen-
sor (VSS) on vehicles equipped with the manual or
3±spd automatic transmission. This circuit also pro-
vides a signal to the Powertrain Control Module
(PCM).
Logic internal to the cluster steps the odometer at
a high rate to indicate the proper mileage.
SERVICE ENGINE SOON LAMP
The Service Engine Soon lamp illuminates when
the ignition switch is in the ON position and prior to
starting the vehicle. The lamp will turn off after the
vehicle is started.
If while the vehicle is running a problem is
detected in the engine control system the lamp is
illuminated. This is accomplished by the Powertrain
Control Module (PCM) grounding the G3 circuit.
SEAT BELT WARNING INDICATOR
The fasten seat belt indicator is used with the
warning chime to indicate to the operator to fasten
the seat belt. There is a switch located in the drivers
side B-pillar that is normally OPEN with the seat
belt buckled.
If the seat belt is not buckled the switch CLOSES
and a ground path is completed from the G10 circuit
to the Z1 circuit. This will illuminate the lamp in the
instrument cluster.
When the ignition switch is moved to the START
position the lamp will illuminate. Logic internal to
the instrument cluster determines the length of time.
LOW FUEL LAMP
The low fuel lamp is used to indicate to the opera-
tor that the fuel level is below a predetermined level.
This lamp is logic driven by the instrument cluster.
When the instrument cluster determines a low fuel
condition based on an input from the fuel tank gauge
level sending unit (circuit G4) it illuminates the
lamp.
HEADLAMP ON CHIME
The headlamp ON chime is used to indicate to the
operator that the headlamps or parking lamps are
ON when the drivers door is OPEN. If the lamps are
ON and the drivers door is opened, a ground path is
completed from the G26 circuit at the cluster,
through the headlamp switch, to the G16 circuit and
ending at the door ajar switch. The door ajar switch
is case grounded.
KEY-IN CHIME
The key-in chime is used to indicate to the opera-
tor that the key is in the ignition with the driversdoor OPEN. If the key is in the ignition and the driv-
ers door is OPEN, a ground path is completed from
the G26 circuit at the cluster, through the CLOSED
key-in switch, to the G16 circuit and terminating at
the door ajar switch which is case grounded.
CHARGE INDICATOR LAMP
The Charge Indicator lamp is used to alert the
operator that the charging system voltage has fallen
below the normal operating range. This circuit is con-
trolled by the Powertrain Control Module (PCM).
When the PCM determines a problem, it grounds the
G12 circuit.
AIRBAG WARNING LAMP
The Airbag Warning lamp is used to alert the oper-
ator of a problem with the Airbag system. The lamp
is illuminated when the Airbag Control Module
(ACM) grounds the R41 circuit. Refer to the appro-
priate section of the Service Manual or Diagnostic
Test Procedures Manual to diagnosis this system.
LOW OIL PRESSURE LAMP
The low oil pressure lamp is used to indicate to the
operator that the engine oil pressure has dropped
below a predetermined pressure. Power for the lamp
is provided on the G5 circuit which also powers the
other warning lamps.
When the oil pressure is low the normally OPEN
oil pressure switch CLOSES completing a path to
ground on circuit G6. The oil pressure switch is case
grounded to the engine block.
HIGH BEAM INDICATOR LAMP
The High Beam Indicator Lamp is used to indicate
to the operator that the high beam headlamps are
ON. Power is supplied to the cluster on the L3 cir-
cuit. Ground is provided on the Z3 circuit.
Circuit L3 connects from the headlamp dimmer
switch to the instrument cluster.
RIGHT AND LEFT TURN SIGNAL INDICATORS
These lamps are used to indicate to the operator
which turn signal is ON. Power for the lamps comes
from the turn signal switch. The L60 circuit is for the
right turn indicator, and the L61 circuit is used for
the left turn signal indicator. Ground for the circuits
is provided on the Z3 circuit.
BRAKE WARNING INDICATOR LAMP
The Brake Warning Indicator lamp is used to alert
the operator of a problem with the vehicles braking
system. The lamp illuminates when the ignition
switch is turned to START position to perform a self
check.
8W - 40 - 8 8W - 40 INSTRUMENT CLUSTERPL
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine There are two switches used in this system and
they are wired in parallel form. A parking brake
switch located on the parking brake mechanism will
illuminate the lamp if the normally OPEN switch is
CLOSED. This switch is case grounded.
The other switch used is the brake warning lamp
switch. This switch is normally OPEN. When the
brake system pressure is below a predetermined level
the switch CLOSES and completes a path to ground
from the G9 circuit at the cluster, through the
switch, to the left headlamp ground.
ANTI-LOCK WARNING LAMP
The Anti-Lock warning lamp is used to alert the
driver of a problem in the ABS system. When the
ABS controller determines a problem in the system it
grounds the G19 circuit and illuminates the lamp.
HELPFUL INFORMATION
²Check the 5 amp fuse in cavity 11 of the fuse
block.
²Check the 4 amp fuse in cavity 12 of the fuse
block.
²Check the Ignition-Off Draw fuse in the PDC.
²Check for a good ground at the instrument panel
left center support.
²For additional diagnostic tests refer to the
appropriate section of the Service Manual.
PL8W - 40 INSTRUMENT CLUSTER 8W - 40 - 9
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-41 HORNS/CIGAR LIGHTER
DESCRIPTION AND OPERATION
HORNS
The horn system is powered by a 15 amp fuse
located in the Power Distribution Center (PDC)
which is HOT at all times on circuit F31. This circuit
supplies voltage to the coil and contact side of the
horn relay.
When the operator presses the horn switch, a
ground path is completed on the coil side of the horn
relay through the switch. The horn relay, located in
the PDC, then CLOSES the relay contacts. Voltage is
passed through the CLOSED relay contacts on circuit
X2 to the horn. Grounding for the horn is on the Z1
circuit to the left headlamp ground which is located
on the left side of the radiator closure panel.
HELPFUL INFORMATION
²Check the 15 amp fuse in the PDC.²Press the horn switch and listen for the horn
relay to click. A clicking relay indicates voltage is
present up to the switch.
²Check for a good ground at the left headlamp
ground.
CIGAR LIGHTER
The cigar lighter in this vehicle uses a cigar lighter
relay and a cigar lighter element. Power for the cigar
lighter relay is supplied by two sources.
Power for the coil side of the relay is supplied by
circuit F13. This circuit is protected by a 20 amp fuse
located in the fuse block. Power for the contact side
of the relay is supplied on circuit F38. The F38 cir-
cuit is protected by a 15 amp fuse.
Ground for the cigar lighter element and relay is
supplied on circuit Z1.
8W - 41 - 4 8W - 41 HORNS/CIGAR LIGHTERPL

Downloaded from www.Manualslib.com manuals search engine 8W-42 AIR CONDITIONING-HEATER
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION.......................................................... 6
Component Page
A/C Compressor Clutch................8W-42-2
A/C Compressor Clutch Relay...........8W-42-2
A/C Cycling Switch...............8W-42-3, 4, 5
A/C Heater Blower Motor..............8W-42-3
A/C Heater Control Switch...........8W-42-3, 3
A/C High Pressure Switch..............8W-42-5
A/C Low Pressure Switch............8W-42-4, 5
Blower Motor Resistor Block............8W-42-3
Diode..............................8W-42-2
Fuse 5 (FB).........................8W-42-4
Fuse 5 (PDC)........................8W-42-5
Fuse 7 (FB).........................8W-42-3
Fuse 9 (FB).........................8W-42-3
Fuse 10 (FB)........................8W-42-2
Fuse 18 (PDC).......................8W-42-2
Fuse Block......................8W-42-2, 3, 4Component Page
G101..............................8W-42-5
G103..............................8W-42-2
G203..............................8W-42-3
Headlamp Switch....................8W-42-3
Power Distribution Center...........8W-42-2, 5
Powertrain Control Module...........8W-42-2, 5
Radiator Fan Motor..................8W-42-5
Rear Fog Lamp Switch................8W-42-3
S108..............................8W-42-5
S109..............................8W-42-2
S111 ..............................8W-42-5
S204..............................8W-42-3
S210..............................8W-42-3
S211 ..............................8W-42-4
S314..............................8W-42-3
Solid State Fan Relay.................8W-42-5
8W - 42 - 2 8W - 42 AIR CONDITIONING-HEATERPL

Downloaded from www.Manualslib.com manuals search engine 1
5432
11 A/C ON
67
89
0098 7
6
A/C
SWITCH
ILLUM. BLOWER
SWITCH
ILLUM.
MODE
SWITCH
ILLUM. A/C
HEATER
CONTROL
ILLUM.
BLOWER SWITCHA/C
SWITCH
10 11
A/C
HEATER
CONTROL
0 OFF
1 DEFROST
2 MIX
3 HEAT
4 BI-LEVEL
5 PANEL
6 LOW
7 MED-LOW
8 MED-HIGH
9 HIGH
10 A/C OFF
67
C4
14
TNC5
14
LGC6
14
LBC7
14
BK/TN
C7
14
BK/TN
BLOCK RESISTOR
MOTOR
BLOWER
C2
22
DB/YL
C2
22
DB/YL
1C206
G203
Z8
14
BK/VT
S204
4A
FUSE
9
5
27
29
25A
FUSE
7
9
BLOCK FUSE
2 HEAD
1 PARK
0 OFF
SWITCH
HEADLAMP
1
BATT F33
E2
22
OR
C1
14
DG
C1
14
DG
C7
14
BK/TN
C7
14
BK/TN
4C206
6C206
RUN A22
FUSE
BLOCK
E1
20
TN
1
2
5124
MODE
SWITCH
MODE
SWITCH
OUTPUT
4
3 2
152
1 0
MOTOR BLOWER
HEATER
A/C
A/C
CYCLING
SWITCH
C2256
S314
TOZ8
18
BK/VT
E2
2O
OR
S210
6
SWITCH LAMP
FOG
REAR
E2
22
OR
SWITCH
3
(8W-15-6) (8W-11-11)(8W-11-8)(8W-11-2)
(8W-50-2)
(8W-11-2)(8W-10-6)
(8W-11-4)
(8W-42-4)
(8W-15-6) (8W-11-11) (8W-51-6)M
PL-RHD8W-42 AIR CONDITIONING-HEATER 8W - 42 - 3
PLR04202978W-1

Downloaded from www.Manualslib.com manuals search engine 8W-42 AIR CONDITIONING-HEATER
INDEX
page page
DESCRIPTION AND OPERATION
A/C OPERATION......................... 6
AIR CONDITIONING-HEATER SYSTEM....... 6BLOWER MOTOR OPERATION............. 6
HELPFUL INFORMATION.................. 7
RADIATOR FAN OPERATION............... 6
DESCRIPTION AND OPERATION
AIR CONDITIONING-HEATER SYSTEM
The A/C-Heater System is powered by a by several
fuses. Fuse 10, a 15 amp fuse located in the fuse
block, is HOT in the RUN position. This fuse powers
the coil side of the A/C compressor clutch relay
located in the Power Distribution Center (PDC).
A 30 amp fuse, on circuit A16 located in the PDC,
powers the solid state radiator fan relay. This fuse is
HOT at all times. The 10 amp fuse on circuit A17
located in the PDC powers the contact side of the A/C
compressor clutch relay.
The A/C-Heater blower motor is protected by a 25
amp fuse located in cavity 7 of the fuse block. This
fuse in HOT in the RUN position only. When the
ignition switch is in the RUN position, power is sup-
plied to the fuse on circuit A22. The power leaves the
fuse on circuit C1 and goes directly to the blower
motor.
There is a 4 amp fuse located in cavity 12 of the
fuse block used for the illumination lamps in the A/C-
Heater control. The fuse is HOT at all times.
A/C OPERATION
When the A/C or the defrost switch is put in the
ON position, and the A/C cycling switch, low pressure
cut-out switch, and the high pressure switch are
CLOSED, the Powertrain Control Module (PCM)
receives a request for A/C.
After receiving this input, the PCM activates the
A/C compressor by grounding the C28 circuit on the
coil side of the A/C Compressor Clutch relay. Power
for the coil side of the relay is supplied on the bus
bar located in the Power Distribution Center (PDC).
With the coil energized, current flows from the 10
amp fuse in the PDC on circuit A17 through the
CLOSED contacts in the relay, on the C3 circuit to
the A/C compressor clutch.
The A/C compressor clutch receives this voltage
and creates a magnetic field energizing the clutch.
Ground for the coil is provided at the right headlamp
ground.
The connector at the A/C compressor has a diode
located in it. This diode is used to control the inducedvoltage resulting from the magnetic field collapsing
when the clutch is disengaged. The diode provides a
path for the voltage to protect other components and
systems.
The A/C compressor clutch relay is also used by the
PCM to disengage the compressor in a Wide Open
Throttle (W.O.T.) condition.
RADIATOR FAN OPERATION
The radiator fan system used in this vehicle uses a
solid state relay that controls the speed of the radia-
tor fan.
Power for the relay is supplied on circuit A16 This
circuit is HOT at all times and protected by a 30 amp
fuse located in the Power Distribution Center (PDC).
Ground for the coil side of the relay is controlled by
the Powertrain Control Module (PCM). When the
PCM determines the need for fan operation the PCM
supplies the ground path for circuit K173. This cir-
cuit connects to cavity 18 of the PCM connector.
From the relay circuit C25 connects to the radiator
fan motor(s). On vehicles equipped with the manual
transmission only one radiator fan is used. For vehi-
cles equipped with an automatic transmission there
are two radiator fans used.
Ground for the radiator fans is supplied on circuit
Z1.
BLOWER MOTOR OPERATION
With the ignition switch in the RUN position,
power flows from the 25 amp fuse, in cavity 7 of the
fuse block, to the blower motor. Blower motor speed
is controlled by the fan control switch located in the
instrument panel, and the resistor block.
Blower motor LOW speed operation is accom-
plished on the C4 circuit. When the control switch is
moved to the LOW speed position, current is passed
on the C7 circuit through the blower motor resistor
to the C4 circuit. It then flows through the blower
motor switch to the Z8 circuit. The Z8 circuit termi-
nates at a grounding point on the instrument panel
left center support.
The operation of the blower motor M1 and M2
speed operations is the same as the LOW speed
8W - 42 - 6 8W - 42 AIR CONDITIONING-HEATERPL