2002 DODGE RAM steering

(2) Reconnect the headlamp and dash wire harness
ground connector to the wiper motor ground terminal
(Fig. 9).
(3) Reconnect the headlamp and dash wire harness
connector for the wiper motor to the wiper motor pig-
tail wire connector.
(4) Reach into the cowl plenum to align the wiper
module mounting bracket with the locations for the
mounting screws (Fig. 8).
(5) Install and tighten the four screws that secure
the wiper module bracket to the cowl plenum panel
and the dash panel. Tighten the screws to 8 N´m (72
in. lbs.).
(6) Reinstall the cowl plenum cover/grille panel
onto the cowl plenum. (Refer to 23 - BODY/EXTERI-
OR/COWL GRILLE - INSTALLATION).
(7) Reinstall the wiper arms onto the wiper pivots.
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER ARMS - INSTALLATION).
(8) Reconnect the battery negative cable.
WIPER RELAY
DESCRIPTION
The wiper relay (or intermittent wipe relay) is
located in the Power Distribution Center (PDC) near
the battery in the engine compartment. See the fuse
and relay layout label affixed to the inside surface of
the PDC cover for wiper relay identification and loca-
tion. The wiper relay is a conventional International
Standards Organization (ISO) micro relay. Relays
conforming to the ISO specifications have common
physical dimensions, current capacities, terminal pat-
terns, and terminal functions. The relay is containedwithin a small, rectangular, molded plastic housing.
The relay is connected to all of the required inputs
and outputs through its PDC receptacle by five male
spade-type terminals that extend from the bottom of
the relay base. The ISO designation for each termi-
nal is molded into the base adjacent to the terminal.
The ISO terminal designations are as follows:
²30 (Common Feed)- This terminal is con-
nected to the movable contact point of the relay.
²85 (Coil Ground)- This terminal is connected
to the ground feed side of the relay control coil.
²86 (Coil Battery)- This terminal is connected
to the battery feed side of the relay control coil.
²87 (Normally Open)- This terminal is con-
nected to the normally open fixed contact point of the
relay.
²87A (Normally Closed)- This terminal is con-
nected to the normally closed fixed contact point of
the relay.
The wiper relay cannot be adjusted or repaired. If
the relay is damaged or faulty, it must be replaced.
OPERATION
The wiper relay (or intermittent wipe relay) is an
electromechanical switch that uses a low current
input from the Central Timer Module (CTM) to con-
trol a high current output to the low speed brush of
the wiper motor. The movable common feed contact
point is held against the fixed normally closed con-
tact point by spring pressure. When the relay coil is
energized, an electromagnetic field is produced by the
coil windings. This electromagnetic field draws the
movable relay contact point away from the fixed nor-
mally closed contact point, and holds it against the
fixed normally open contact point. When the relay
coil is de-energized, spring pressure returns the mov-
able contact point back against the fixed normally
closed contact point. A resistor or diode is connected
in parallel with the relay coil in the relay, and helps
to dissipate voltage spikes and electromagnetic inter-
ference that can be generated as the electromagnetic
field of the relay coil collapses.
The wiper relay terminals are connected to the
vehicle electrical system through a connector recepta-
cle in the Power Distribution Center (PDC). The
inputs and outputs of the wiper relay include:
²The common feed terminal (30) is connected to
the wiper motor low speed brush through the wiper
control circuitry of the multi-function switch on the
steering column. When the wiper relay is de-ener-
gized, the common feed terminal is connected to the
wiper park switch output through the wiper park
switch sense circuit. The wiper park switch output
may be battery current (wipers are not parked), or
ground (wipers are parked). When the wiper relay is
energized, the common feed terminal of the wiper is
Fig. 9 Wiper Module Electrical Connections
1 - GROUND CONNECTOR
2 - WIPER MOTOR CONNECTOR
3 - GROUND TERMINAL
BR/BEWIPERS/WASHERS 8R - 15
WIPER MODULE (Continued)

SYMBOLS
International symbols are used throughout the wir-
ing diagrams. These symbols are consistent with
those being used around the world (Fig. 3).
TERMINOLOGY
This is a list of terms and definitions used in the
wiring diagrams.
LHD .................Left Hand Drive Vehicles
RHD................Right Hand Drive Vehicles
ATX . . Automatic Transmissions-Front Wheel Drive
MTX....Manual Transmissions-Front Wheel Drive
AT ....Automatic Transmissions-Rear Wheel Drive
MT .....Manual Transmissions-Rear Wheel Drive
SOHC...........Single Over Head Cam Engine
DOHC..........Double Over Head Cam Engine
Built-Up-Export........ Vehicles Built For Sale In
Markets Other Than North America
Except-Built-Up-Export . . Vehicles Built For Sale In
North America
DESCRIPTION - CIRCUIT INFORMATION
Each wire shown in the diagrams contains a code
which identifies the main circuit, part of the main
circuit, gage of wire, and color (Fig. 4).
WIRE COLOR CODE CHART
COLOR CODE COLOR
BL BLUE
BK BLACK
BR BROWN
DB DARK BLUE
DG DARK GREEN
GY GRAY
LB LIGHT BLUE
LG LIGHT GREEN
OR ORANGE
PK PINK
RD RED
TN TAN
VT VIOLET
WT WHITE
YL YELLOW
* WITH TRACER
DESCRIPTION - CIRCUIT FUNCTIONS
All circuits in the diagrams use an alpha/numeric
code to identify the wire and it's function. To identify
which circuit code applies to a system, refer to the
Circuit Identification Code Chart. This chart shows
the main circuits only and does not show the second-
ary codes that may apply to some models.
CIRCUIT IDENTIFICATION CODE CHART
CIRCUIT FUNCTION
A BATTERY FEED
B BRAKE CONTROLS
C CLIMATE CONTROLS
D DIAGNOSTIC CIRCUITS
E DIMMING ILLUMINATION
CIRCUITS
F FUSED CIRCUITS
G MONITORING CIRCUITS
(GAUGES)
H OPEN
I NOT USED
J OPEN
K POWERTRAIN CONTROL
MODULE
L EXTERIOR LIGHTING
M INTERIOR LIGHTING
N NOT USED
O NOT USED
P POWER OPTION (BATTERY
FEED)
Q POWER OPTIONS (IGNITION
FEED)
R PASSIVE RESTRAINT
S SUSPENSION/STEERING
T TRANSMISSION/TRANSAXLE/
TRANSFER CASE
U OPEN
V SPEED CONTROL, WIPER/
WASHER
W OPEN
X AUDIO SYSTEMS
Y OPEN
Z GROUNDS
8W - 01 - 4 8W-01 WIRING DIAGRAM INFORMATIONBR/BE
WIRING DIAGRAM INFORMATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Clockspring C1 Steering Column 32
Clockspring C2 Steering Column 32
Clockspring C3 Steering Column 32
Clutch Pedal Position Switch
(M/T)BK Top of Clutch Pedal 35
Controller Anti-Lock Brake C1 BK Left Fender Side Shield 18
Controller Anti-Lock Brake C2
(ABS)BK Left Fender Side Shield 18
Crankshaft Position Sensor
(V8)BK Rear of Engine Block 5
Crankshaft Position Sensor
(V10GY Right Side of Engine Block 8
Cummins Bus (-) Left Front of Engine 13
Cup Holder Lamp BK Center of Instrument Panel 30, 34
Data Link Connector BK Left Bottom of Instrument Panel 30, 32
Day/Night Mirror BK Day/Night Mirror N/S
Daytime Running Lamp
ModuleBK Left Fender Side Shield 18
Dome Lamp BK Rear of Cab 23
Driver Airbag YL Steering Wheel N/S
Driver Cylinder Lock Switch BK In Door 24
Driver Door Ajar Switch NAT Door Jamb N/S
Driver Door Lock Motor BK In Door 24
Driver Door Window/Lock
SwitchBL In Door 24
Driver Heated Seat Cushion BL Under Seat N/S
Driver Heated Seat Switch RD Center of Instrument Panel N/S
Driver Lumbar Motor Under Seat N/S
Driver Power Seat Front
Vertical MotorBK Under Seat N/S
Driver Power Seat Horizontal
MotorBK Under Seat N/S
Driver Power Seat Rear
Vertical MotorBK Under Seat N/S
Driver Power Seat Switch At Seat N/S
Driver Power Window Motor In Door 24
EVAP/Purge Solenoid BK Right Fender Side Shield 22
Electric Brake Provision Bottom Left of Instrument Panel N/S
Engine Control Module
(Diesel)Left Side Engine 15
Engine Coolant Temperature
Sensor (Diesel)BK Left Front of Cylinder Head (Diesel) 13
Engine Coolant Temperature
Sensor (Gas)BK On Thermostat Housing 5, 8
BR/BE8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 3
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Engine Oil Pressure Sensor
(V8)BK Near Distributor 5
Engine Oil Pressure Sensor
(V10)Near Oil Filter 8
Engine Oil Pressure Sensor
(Diesel)Left Side of Engine 15
Fuel Heater (Diesel) Left Side of Engine 13
Fuel Injection Pump (Diesel) Left Side of Engine, Below ECM 13
Fuel Injector No.1 BK At Fuel Injector 7
Fuel Injector No. 2 BK At Fuel Injector 7, 8
Fuel Injector No. 3 BK At Fuel Injector 7, 8
Fuel Injector No. 4 BK At Fuel Injector 7, 8
Fuel Injector No. 5 BK At Fuel Injector 7, 8
Fuel Injector No. 6 BK At Fuel Injector 7, 8
Fuel Injector No. 7 BK At Fuel Injector 7, 8
Fuel Injector No. 8 BK At Fuel Injector 7, 8
Fuel Injector No. 9 BK At Fuel Injector 8
Fuel Injector No. 10 BK At Fuel Injector 8
Fuel Pump Module (Gas) LTGY At Frame Rail 29
Fuel Tank Module (Diesel) LTGY At Frame Rail N/S
Fuel Transfer Pump (Diesel) Left Rear of Engine Bottom of Pump 13
Generator BK Front of Engine 10, 11
Glove Box Lamp At Glove Box 30
Headlamp Switch C1 BK Left Side of Instrument Panel 30, 34
Headlamp Switch C2 Left Side of Instrument Panel 30, 34
Heated Mirror Switch Center of Instrument Panel 33
High Note Horn BK Front Bumper Right Support 22
Idle Air Control Motor BK On Throttle Body 12
Ignition Coil (5.9L) GY Right Front of Engine 7, 12
Ignition Coil 4 Pack (8.0L) BK Right Side of Engine 12
Ignition Coil 6 Pack (8.0L) BK Right Side of Engine 12
Ignition Switch C1 BK Steering Column 32
Ignition Switch C2 GY Steering Column 32
Instrument Cluster C1 Rear of Instrument Cluster 30
Instrument Cluster C2 Rear of Instrument Cluster 30
Intake Air Heater Relay
(Diesel)Left Fender Side Shield 21
Intake Air Temperature
Sensor (Diesel)Left Rear of Engine 13
Intake Air Temperature
Sensor (Gas)BK On Intake Manifold 7, 8
Joint Connector No. 1 In Power Distribution Center N/S
Joint Connector No. 2 In Power Distribution Center N/S
8W - 91 - 4 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONBR/BE
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Joint Connector No. 5 NAT Left Side of Instrument Panel 32
Joint Connector No. 6 NAT Left Side of Instrument Pane 32
Joint Connector No. 7 NAT Left Side of Instrument Pane 32
Joint Connector No. 8 NAT Center of Instrument Panel 30
Junction Block C1 BL Left Cowl 35
Junction Block C2 NAT Left Cowl 35
Junction Block C3 Left Cowl 25
Junction Block C4 BR Left Cowl 33
Junction Block C5 GN Left Cowl 33
Junction Block C6 BK Left Cowl 33
Junction Block C7 LTGY Left Cowl 33
Junction Block C8 OR Left Cowl 33
Junction Block C9 NAT Left Cowl N/S
Leak Detection Pump (Gas) BK Right Fender Side Shield 22
Left Back-Up Lamp GY Rear of Lamp N/S
Left Fog Lamp WT Rear of Fog Lamp N/S
Left Front Door Speaker
(Premium)BK In Door 24
Left Front Door Speaker
(Standard)BK In Door 24
Left Front Fender Lamp BK On Fender N/S
Left Front Wheel Speed
Sensor (ABS)BK Left Fender Side Shield 18
Left Headlamp BL At Headlamp N/S
Left License Lamp BK At Rear Bumper N/S
Left Outboard Clearance
LampBK Behind Front of Headliner 25
Left Outboard Headlamp BL At Headlamp N/S
Left Outboard Identification
LampBK Behind Front of Headliner 25
Left Park/Turn Signal Lamp BK At Lamp N/S
Left Power Mirror BK In Door 24
Left Rear Fender Lamp BK On Fender N/S
Left Rear Speaker (Premium) BK At B Pillar 23
Left Rear Speaker (Standard) At B Pillar 23
Left Rear Door Speaker In Door 23
Left Remote Radio Switch Steering Wheel N/S
Left Speed Control Switch Steering Wheel N/S
Left Tail/Stop Turn Signal
LampBK At Rear Bumper 27
Left Tweeter (Premium) Left A Pillar N/S
Left Visor/Vanity Lamp BK Left A-Pillar 25, 26
License Lamps BK Rear Bumper 27
BR/BE8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Low Note Horn BK Front Bumper Right Support 22
Manifold Absolute Pressure
Sensor (V8)BK On Throttle Body 7
Manifold Absolute Pressure
Sensor (V10)BK Top of Intake Manifold 12
Manifold Air Pressure Sensor
(Diesel)BK Rear of Intake Manifold 13
Multi-Function Switch On Steering Column 32
Output Speed Sensor DKBL Left Side of Transmission 16
Overdrive Switch On Shift Lever Arm N/S
Overhead Console BK Front of Headliner 25, 26
Oxygen Sensor 1/1 Left Bank
Up (5.9L HD/8.0L)Left Exhaust Manifold Downpipe N/S
Oxygen Sensor 1/1 Upstream
(A/T Except 8.0L)Catalytic Converter Inlet Side N/S
Oxygen Sensor 1/2
Downstream (A/T Except
8.0L)Catalytic Converter Outlet Side N/S
Oxygen Sensor 1/2 Left Bank
Down (California)Catalytic Converter Outlet Side N/S
Oxygen Sensor 1/2
Pre-catalyst (8.0L)Catalytic Converter Inlet Side N/S
Oxygen Sensor 1/3 Post
Catalyst (8.0L)Catalytic Converter Outlet Side N/S
Oxygen Sensor 2/1 Right
Bank Up (5.9L, 5.9HD, 8.0L,
CAL)Right Exhaust Manifold Downpipe N/S
Oxygen Sensor 2/2 Right
Bank Down (California)Catalytic Converter Outlet Side N/S
Oxygen Sensor 1/1 Left Bank
UpLeft Side of Engine N/S
Oxygen Sensor 1/1 Upstream
(M/T Except 8.0L)Catalytic Converter Outlet Side N/S
Park/Neutral Position Switch BK Left Side of Transmission 16
Passenger Airbag At Glove Box 30, 34
Passenger Airbag On/Off
Switch C1Lower Right Side of Instrument Panel 30, 33
Passenger Airbag On/Off
Switch C2Lower Right Side of Instrument Panel 30, 33
Passenger Cylinder Lock
SwitchLTGY In Door N/S
Passenger Door Ajar Switch NAT In Door N/S
Passenger Door Lock Motor BK In Door N/S
Passenger Door Window/
Lock SwitchIn Door N/S
8W - 91 - 6 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONBR/BE
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Right Park/Turn Signal Lamp BK At Lamp N/S
Right Power Mirror BK In Door N/S
Right Rear Fender Lamp BK On Fender 27
Right Rear Speaker BK Bottom of Right B Pillar 23
Right Remote Radio Switch Steering Wheel N/S
Right Speed Control Switch Steering Wheel N/S
Right Tail/Stop Turn Signal
LampBK At Rear Bumper 27
Right Tweeter (Premium) Right A Pillar N/S
Right Visor/Vanity Lamp BK Right A-Pillar N/S
Seat Belt Switch BK Above Left Rear Speaker 23
Seat Heat Interface Module BK Under Seat N/S
Tailgate Lamp On Tailgate 27
Throttle Position Sensor
(Gas)Throttle Body 7, 12
Trailer Tow Connector BK On Trailer Hitch 27
Transmission Range Sensor BK Left side of Transmission N/S
Transmission Solenoid
AssemblyBK Side of Transmission 16
Under Hood Lamp BK Underside of Hood 20
Vehicle Speed Control Servo BK Below Battery 21
Washer Fluid Level Switch BK At Reservoir 21
Water In Fuel Sensor (Diesel) BK Bottom of Fuel Filter/Water Separator 13
Windshield Washer Pump BK Bottom of Washer Fluid Reservior 21
Wiper Motor BK Center Rear Engine Compartment 18
GROUNDS
GROUND
NUMBERLOCATION FIG.
G100 Left Fender Side Shield 21
G101 Left Fender Side Shield 21
G102 Left Fender Side Shield (RWAL Ground) N/S
G103 Near T/O for Wiper Motor 18
G105 Front of Engine (Engine Ground) 7, 8, 12
G107 (Diesel) Left Rear of Engine 13
G113 (Diesel) Primary Battery Engine Ground N/S
G114 Battery Engine Ground N/S
G115 (Diesel) Primary Battery Body Ground N/S
G116 Battery Frame Ground N/S
G117 (Diesel) Auxilary Battery Engine Ground N/S
G118 (Diesel) Primary Frame Ground N/S
G120 (Diesel) Auxilary Battery Body Ground N/S
8W - 91 - 8 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONBR/BE
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPLICE
NUMBERLOCATION FIG.
S184 (Diesel) Engine Harnes, in T/O to Engine Control Module N/S
S202 Instrument Panel Harness, Near Overdrive Switch 31
S203 Instrument Panel Harness, Near Overdrive Switch 31
S204 instrument Panel Harness, In T/O to Cup Holder Lamp 31
S207 Instrument Panel Harness, Near Blower Motor 31
S209 Steering Wheel Harness, Near Remote Radio Switch N/S
S210 Steering Wheel Harness, Near Remote Radio Switch N/S
S300 Body Harness, Left Side Instrument Panel 36
S301 Body Harness, Left Side Instrument Panel 36
S302 Body Harness, Left Side Instrument Panel 36
S303 Body Harness, Left Side Instrument Panel 36
S304 Body Harness, Left Side Instrument Panel 36
S305 Body Harness, Right Side Instrument Panel N/S
S306 Body Harness, Left Side Instrument Panel 36
S307 Body Harness, Left Cowl 36
S308 Body Harness, Left Cowl 36
S310 At Left Body Ground N/S
S311 At Left Body Ground N/S
S313 Left Rear Frame Rail 28
S314 Left Rear Frame Rail N/S
S315 Left Rear Frame Rail N/S
S316 Left Rear Frame Rail 28
S317 Left Rear Frame Rail 28
S318 In T/O to Trailer Tow 28
S319 In T/O to Left Rear Lamps 28
S320 In T/O to Trailer Tow 28
S321 In T/O to Left Rear Lamps 28
S322 Overhead Console Harness, At Roof Lamps 26
S323 Overhead Console Harness, At Roof Lamps 26
S324 Overhead Console Harness, At Roof Lamps 26
S325 Overhead Console Harness, At Roof Lamps 26
S326 Overhead Console Harness, At Roof Lamps 26
S327 Power Seat Harness, Near Switch N/S
S328 Power Seat Harness, Near T/O to Body Wiring N/S
S329 Door Harness, Near Left Door Near Grommet N/S
S330 Door Harness, Near Right Door Near Grommet N/S
S331 Chassis Harness, Near T/O to Fuel Pump Module 28
S332 Body Harness, Left Side Instrument Panel 36
S333 Power Seat Harness, Near T/O to Passenger Seat Jumper N/S
S335 Power Seat harness, Near T/O to Body Wiring N/S
S336 Power Seat Harness, Under Passenger Seat N/S
BR/BE8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 11
CONNECTOR/GROUND/SPLICE LOCATION (Continued)