1997 DODGE NEON brake sensor

Downloaded from www.Manualslib.com manuals search engine WHEEL SPEED SENSORS
There are four wheel speed sensors, one at each
wheel. The sensors use a tone wheel to determine
wheel speed. Input to the Controller Anti Lock Brake
(CAB) is done on the following circuits. All of these
circuits are a twisted pair.
B8 and B9 for the left front wheel (cavity 8 and
cavity 9).
B6 and B7 for the right front wheel (cavity 6 and
cavity 7).
B3 and B4 for the left rear wheel (cavity 3 and cav-
ity 4).
B1 and B2 for the right rear wheel (cavity 1 and
cavity 2).
BRAKE SWITCH INPUT
Circuit L50 is an input to the Controller Anti Lock
Brake (CAB). The L50 connects to cavity 13 of the
CAB connector. Circuit L50 is spliced in with the
stop lamps and is used to provide the CAB with
information on when the brakes are being applied.
DATA LINK CONNECTOR
Circuit D21 is used for diagnostics of a fault with
the ABS system. It is spliced in with the Powertrain
Control Module (PCM) circuits and used as an output
from the Controller Anti Lock Brake (CAB). Circuit
D21 connects to cavity 51 of the CAB connector.
HELPFUL INFORMATION
²Check the 15 amp fuse located in cavity 10 of
the fuse block.
²Check the 40 amp fuse located in the PDC.
²Check for a good ground at the left headlamp
ground.
²Check the case ground on the CAB
²Refer to the appropriate section of the service
manual, or the Diagnostic Test Procedures Manual.
PL8W - 35 ANTI-LOCK BRAKES 8W - 35 - 7
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-40 INSTRUMENT CLUSTER
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION.......................................................... 7
Component Page
ABS Relay Box......................8W-40-5
Airbag Control Module................8W-40-5
Airbag Warning Lamp.................8W-40-5
Anti-Lock Warning Lamp..............8W-40-5
Brake Warning Lamp.................8W-40-5
Brake Warning Lamp Switch...........8W-40-5
Charge Indicator Lamp................8W-40-5
Check Engine Lamp..................8W-40-6
Cluster Illumination Lamps............8W-40-2
Controller Anti-Lock Brake.............8W-40-5
Engine Coolant Temperature Gauge......8W-40-6
Engine Coolant Temperature Sensor......8W-40-6
Engine Oil Pressure Switch............8W-40-6
Fuel Gauge.........................8W-40-6
Fuel Pump Module...................8W-40-6
Fuse 9 (FB).........................8W-40-2
Fuse 11 (FB)........................8W-40-6
Fuse 13 (PDC).......................8W-40-3
Fuse Block........................8W-40-2, 6
G101..............................8W-40-5
G204..............................8W-40-6
Headlamp Dimmer And Optical
Horn Switch......................8W-40-2
Headlamp Switch..................8W-40-2, 3
High Beam Indicator Lamp.............8W-40-2
Instrument Cluster...........8W-40-2, 3, 4, 5, 6
Key-In Switch.......................8W-40-3Component Page
Left Front Door Jamb Switch...........8W-40-3
Left Park/Turn Signal Lamp............8W-40-4
Left Repeater Lamp..................8W-40-4
Left Turn Indicator Lamp..............8W-40-4
Low Oil Pressure Lamp...............8W-40-6
Park Brake Switch...................8W-40-5
Power Distribution Center.............8W-40-3
Powertrain Control Module.........8W-40-3, 5, 6
Right Park/Turn Signal Lamp...........8W-40-4
Right Repeater Lamp.................8W-40-4
Right Turn Indicator Lamp.............8W-40-4
S107..............................8W-40-5
S112 ..............................8W-40-4
S116 ..............................8W-40-4
S127..............................8W-40-5
S201..............................8W-40-6
S203..............................8W-40-3
S207..............................8W-40-4
S208..............................8W-40-5
S209..............................8W-40-2
S210..............................8W-40-2
S212..............................8W-40-4
Seat Belt Warning Lamp...............8W-40-5
Turn Signal/Hazard Switch.............8W-40-4
Vehicle Speed Sensor..................8W-40-3
8W - 40 - 2 8W - 40 INSTRUMENT CLUSTERPL

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 8W-80 CONNECTOR PIN-OUTS
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
Component Page
A/C Compressor Clutch................8W-80-4
A/C Cycling switch...................8W-80-4
A/C-Heater Blower Motor..............8W-80-4
A/C-Heater Control Switch.............8W-80-4
A/C High Pressure Switch..............8W-80-4
A/C Low Ptressure Switch..............8W-80-5
ABS Hydraulic Modulator..............8W-80-5
ABS Relay Box......................8W-80-5
Airbag Control Module................8W-80-5
Ash Receiver lamp...................8W-80-6
Back-Up Lamp Switch (MTX)...........8W-80-6
Battery Temperature Sensor............8W-80-6
Blower Motor Resister Block............8W-80-6
Brake Warning Lamp Switch...........8W-80-6
C101..............................8W-80-7
C102..............................8W-80-7
C103..............................8W-80-7
C105..............................8W-80-8
C108..............................8W-80-8
C160..............................8W-80-8
C161..............................8W-80-8
C203..............................8W-80-9
C205..............................8W-80-9
C206..............................8W-80-9
C225..............................8W-80-9
C230.............................8W-80-10
C231.............................8W-80-10
C241.............................8W-80-10
C301.............................8W-80-11
C303.............................8W-80-11
C309.............................8W-80-11
C315.............................8W-80-11
C323.............................8W-80-11
C324.............................8W-80-11
C325.............................8W-80-12
C340.............................8W-80-12
C341.............................8W-80-12
Camshaft Position Sensor.............8W-80-12
Clockspring........................8W-80-12
Clutch Pedal Position Switch (MTX).....8W-80-12
Controller Anti-Lock Brake............8W-80-13
Crankshaft Position Sensor............8W-80-14
Data Link Connector.................8W-80-14
Dome Lamp........................8W-80-14
Downstream Heated Oxygen Sensor.....8W-80-15Component Page
Driver Side Airbag..................8W-80-15
Duty Cycle Evap/Purge Solenoid........8W-80-15
EGR Transducer solenoid.............8W-80-15
Engine Coolant Temperature
Sensor (ECT).....................8W-80-15
Engine Oil Pressure Switch............8W-80-16
Front Fog Lamp Switch...............8W-80-16
Fuel Injector No.1...................8W-80-16
Fuel Injector No.2...................8W-80-16
Fuel Injector No.3...................8W-80-16
Fuel Injector No.4...................8W-80-16
Fuel Pump Module..................8W-80-17
Generator.........................8W-80-17
Glove Box Lamp and Switch...........8W-80-17
Headlamp Dimmer and Optical
Horn Switch.....................8W-80-17
Headlamp Leveling Switch............8W-80-17
Headlamp Switch...................8W-80-17
Horn No.1.........................8W-80-18
Horn No.2.........................8W-80-18
(IAT/Map) Sensor...................8W-80-18
Idle Air Control Motor (IAC)...........8W-80-18
Ignition Coil Pack...................8W-80-18
Ignition Switch.....................8W-80-19
Immobilizer Engine Sensor............8W-80-19
Immobilizer Sensor..................8W-80-19
Instument Cluster - C1...............8W-80-19
Instument Cluster - C2...............8W-80-19
Intermittent Wipe/Wash Switch........8W-80-20
Key-In Switch......................8W-80-20
Knock Sensor......................8W-80-20
Left Airbag Impact Sensor.............8W-80-20
Left Back-Up Lamp..................8W-80-20
Left Door Lock Switch................8W-80-21
Left Door Window Motor..............8W-80-21
Left Fog Lamp......................8W-80-21
Left Front Door Lock Motor...........8W-80-21
Left Front Door Speaker..............8W-80-21
Left Front Wheel Speed Sensor.........8W-80-22
Left Headlamp.....................8W-80-22
Left Headlamp Leveling Motor.........8W-80-22
Left Instrument Panel Speaker
(Premium).......................8W-80-22
Left License Lamp...................8W-80-22
Left Park/Turn Signal Lamp...........8W-80-22
8W - 80 - 2 8W - 80 CONNECTOR PIN-OUTSPL

Downloaded from www.Manualslib.com manuals search engine 978W-1
PL-RHD 8W - 80 - 6 8W-80 CONNECTOR PIN-OUTS
PLR08006
CAV CIRCUIT FUNCTION
1 E2 22OR FUSED PANEL LAMPS DIMMER SWITCH SIGNAL
2 Z3 20BK/OR GROUND BLACK12
ASH
RECEIVER
LAMP
BACK-UP LAMP
SWITCH (MTX)GRAY
CAV CIRCUIT FUNCTION
A L1 20VT/BK REVERSE LAMP SENSE
B F20 20WT FUSED IGNITION SWITCH OUTPUT (RUN)ABAB
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 G31 18VT/LG AMBIENT TEMPERATURE SENSOR SIGNAL
2
1 54
3
CAV CIRCUIT FUNCTION
1 C5 14LG M1 BLOWER MOTOR DRIVER
2 C6 14LB M2 BLOWER MOTOR DRIVER
3Ð Ð
4 C7 14BK/TN HIGH BLOWER MOTOR DRIVER
5 C4 14TN LOW BLOWER MOTOR DRIVER
BLOWER MOTOR
RESISTOR
BLOCK
3 25 4
1BLACK
CAV CIRCUIT FUNCTION
1 G9 20GY/BK RED BRAKE WARNING LAMP DRIVER
2 Z1 20BK GROUND
BRAKE WARNING
LAMP SWITCH
BATTERY
TEMPERATURE SENSOR12
BLACK
BLACK
21

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8W - 80 - 13PL-RHD 8W-80 CONNECTOR PIN-OUTS
PLR08013
CAV CIRCUIT FUNCTION
1 B1 20YL/DB RIGHT REAR WHEEL SPEED SENSOR (Ð)
2 B2 20YL RIGHT REAR WHEEL SPEED SENSOR (+)
3 B3 20LG/DB LEFT REAR WHEEL SPEED SENSOR (Ð)
4 B4 20LG LEFT REAR WHEEL SPEED SENSOR (+)
5 Z12 18BK/OR GROUND
6 B6 20WT/DB RIGHT FRONT WHEEL SPEED SENSOR (+)
7 B7 20WT RIGHT FRONT WHEEL SPEED SENSOR (Ð)
8 B8 20RD/DB LEFT FRONT WHEEL SPEED SENSOR (+)
9 B9 20RD LEFT FRONT WHEEL SPEED SENSOR (Ð)
10 Ð Ð
11 Ð Ð
12 Ð Ð
13 L50 20WT/TN STOP LAMP SWITCH OUTPUT
14 Ð Ð
15 G19 20LG/BR ABS WARNING LAMP DRIVER
16 B116 20GY ABS PUMP MOTOR RELAY CONTROL
17 Ð Ð
18 Ð Ð
19 Ð Ð
20 B120 16BR/WT ABS PUMP MOTOR RELAY OUTPUT
21 Ð Ð
22 Ð Ð
23 Ð Ð
24 Ð Ð
25 Ð Ð
26 Ð Ð
27 Ð Ð
28 Ð Ð
29 Ð Ð
30 Ð Ð
31 Ð Ð
32 Ð Ð
33 Ð Ð
34 Ð Ð
35 Ð Ð
36 Ð Ð
37 Ð Ð
38 Ð Ð
39 Ð Ð
40 Ð Ð
41 Ð Ð
42 B142 20BR/YL LEFT FRONT DUMP SOLENOID CONTROL
43 B143 20DG/YL RIGHT FRONT DUMP SOLENOID CONTROL
44 Ð Ð
45 Ð Ð
46 B146 20BR/LB LEFT REAR DUMP SOLENOID CONTROL
47 B47 20RD/LB ABS SYSTEM RELAY OUTPUT
48 B148 20DB/LB RIGHT REAR DUMP SOLENOID CONTROL
49 Ð Ð
50 Ð Ð
(CONTINUED ON NEXT PAGE)
BLACK
60 20 41 121
CONTROLLER
ANTI-LOCK
BRAKE40

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8W - 80 - 19 PL-RHD 8W-80 CONNECTOR PIN-OUTS
PLR08019
BLACK
51
10 6
IGNITION
SWITCH
CAV CIRCUIT FUNCTION
1 Z1 22BK GROUND
2 G9 22GY/BK RED BRAKE WARNING LAMP DRIVER
3 A2 12PK/BK FUSED B(+)
4 A22 12BK/OR IGNITION SWITCH OUTPUT (RUN)
5Ð Ð
6Ð Ð
7 A1 14RD FUSED (B+)
8 A31 14BK/WT IGNITION SWITCH OUTPUT (ACC/RUN)
9 A21 14DB IGNITION SWITCH OUTPUT (RUN/START)
10 A41 14YL/BK IGNITION SWITCH OUTPUT (START)
CAV CIRCUIT FUNCTION
1 K241 20GY/BK IMMOBILIZER SENSOR
2 K240 20GY IMMOBILIZER SENSOR
IMMOBILIZER
ENGINE SENSOR
CAV CIRCUIT FUNCTION
1 K241 20GY/BK IMMOBILIZER ENGINE SENSOR
2 K4 20BK/LB SENSOR GROUND
3K7 20OR 8 VOLT SUPPLYK7 20OR 8 VOLT SUPPLY
4 K240 GY IMMOBILIZER ENGINE SENSORIMMOBILIZER
SENSOR
CAV CIRCUIT FUNCTION
1Ð Ð
2 L3 16RD/OR DIMMER SWITCH HIGH BEAM OUTPUT
3 L60 22TN RIGHT TURN SIGNAL
4 G10 20LG/RD SEAT BELT SWITCH SENSE
5 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN/START)
6 M1 22PK FUSED B(+)
7 G21 22GY/LB TACHOMETER SIGNAL
8 Z3 16BK/OR GROUND
9 R41 18BK/TN AIRBAG WARNING LAMP DRIVER
10 G7 22WT/OR VEHICLE SPEED SENSOR SIGNAL
BLACK
5 1
10 6
INSTRUMENT CLUSTER Ð C1
CAV CIRCUIT FUNCTION
1 G6 22GY OIL PRESSURE SWITCH SENSE
2 G19 22LG/OR ABS WARNING LAMP DRIVER
3 G3 22BK/PK CHECK ENGINE LAMP DRIVER
4 G20 22VT/YL ECT GAUGE SENSOR SIGNAL
5 G26 20LB KEY-IN IGNITION SWITCH SENSE
6 G9 22GY/BK RED BRAKE WARNING LAMP DRIVER
7 G12 22TN/BK GENERATOR LAMP DRIVER
8 L61 22LG LEFT TURN SIGNAL
9 E2 22OR PANEL LAMPS DRIVER
10 G4 20DB FUEL LEVEL SENSOR SIGNAL
BLACK
5 1
10 6
INSTRUMENT CLUSTER Ð C2
1 2
BLACK
12
34
BLACK
GRAY
NATURAL
12
34

Downloaded from www.Manualslib.com manuals search engine 8W-90 CONNECTOR/GROUND LOCATIONS
DESCRIPTION AND OPERATION
INTRODUCTION
This section provides illustrations identifying the
general location of components, grounds, and connec-
tors in the vehicle. A index is provided. Use the wir-
ing diagrams in each section for connector/groundnumber identification. Refer to the index for the
proper figure number.CONNECTOR/GROUND LOCATIONS
For items not shown in this section a N/S is placed
in the Fig. column.
Connector
Name/NumberColor Location Fig.
A/C Compressor
ClutchBK Top of
Compressor8
A/C Cycling Switch BK Center of HVAC
HousingN/S
A/C-Heater Blower
MotorBK RT Side of
HVAC HousingN/S
A/C-Heater Control
SwitchBK Rear of Control 13
A/C High Pressure
SwitchGY Top of A/C
Compressor8
A/C Low Pressure
SwitchBK LT Side of Cowl
PanelN/S
ABS Hydraulic
ModulatorDK/
GYTop of Hydraulic
UnitN/S
ABS Relay Box BK Top of Hydraulic
UnitN/S
Airbag Control
ModuleYL Rear of
Gearshift11
Ash Receiver Lamp BK At Lamp 13
Back-Up Lamp
SwitchGY Top of
Transmission3
Battetry
Temperature
SensorBK Bottom of
Battery Tray6
Blower Motor
Resistor BlockNAT Left Side Cowl
To pN/S
Brake Warning
Lamp SwitchBK Right Frame
RailN/S
C101 BR Top of I.P. 13
C102 BK Top of I.P. 13
C103 BL Top of I.P. 13
C105 BL Right Kick Panel N/S
C108 BK Left Lower Cowl N/S
C160 LT/
GYLeft Fender Side
Shield5Connector
Name/NumberColor Location Fig.
C161 BK Left Fender Side
Shield5
C203 BK Left Side of I.P. N/S
C205 BL Left Kick Panel 13
C206 BL Top Left of I.P. N/S
C225 RD Left Kick Panel 9
C230 GY Right Kick Panel 14
C231 BL Right Kick Panel N/S
C241 BK Right Side of I.P. N/S
C301 GY Right B-Pillar 15
C303 GY Right B-Pillar 15
C309 BK Left Trunk Area 18
Camshaft Position
SensorBK Left Side of
Engine7
Clockspring NAT Rear of
Clockspring10
Clutch Pedal
Position SwitchBK Top of Clutch
Pedal2
Controller Anti-Lock
BrakeBK Left Side Kick
PanelN/S
Crankshaft Position
SensorBK Rear of Engine 7
Datalink Connector BK Left Side of
Steering ColumnN/S
Dome Lamp BK Left C- Pillar 16
Downstream
Heated Oxygen
SensorBK Rear of Catalytic
ConverterN/S
Driver Side Airbag YL Rear of
Clockspring10
Duty Cycle/EVAP
Purge SolenoidGY Right Frame
Rail4
Engine Coolant
Temp SensorBK Left Side of
Engine7
PL8W - 90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 1