low beam DODGE RAM 2002 Service User Guide
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Page 532 of 2255

HEADLAMP RELAY
DESCRIPTION
The headlamp (or security) relay is located in the
Power Distribution Center (PDC) near the battery in
the engine compartment (Fig. 14). See the fuse and
relay layout label affixed to the inside surface of the
PDC cover for headlamp relay identification and loca-
tion. The headlamp relay is a conventional Interna-
tional Standards Organization (ISO) micro relay.
Relays conforming to the ISO specifications have
common physical dimensions, current capacities, ter-
minal patterns, and terminal functions. The relay is
contained within 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 terminal is molded into the base adjacent to the
terminal. The ISO terminal designations are as fol-
lows:
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 headlamp relay cannot be adjusted or
repaired. If the relay is damaged or faulty, it must be
replaced.
OPERATION
The headlamp (or security) relay is an electrome-
chanical switch that uses a low current input from
the high-line or premium Central Timer Module
(CTM) to control a high current output to the head-
lamps. The movable common feed contact point is
held against the fixed normally closed contact point
by spring pressure. When the relay coil is energized,
an electromagnetic field is produced by the coil wind-
ings. This electromagnetic field draws the movable
relay contact point away from the fixed normally
closed contact point, and holds it against the fixed
normally open contact point. When the relay coil is
de-energized, spring pressure returns the movable
contact point back against the fixed normally closed
contact point. A resistor or diode is connected in par-
allel with the relay coil in the relay, and helps to dis-
sipate voltage spikes and electromagnetic
interference that can be generated as the electromag-
netic field of the relay coil collapses.
The headlamp 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 headlamp relay include:
²The common feed terminal (30) is connected to
ground at all times through a take out and eyelet
terminal connector of the right headlamp and dash
wire harness that is secured by a ground screw to
the left fender inner shield near the PDC in the
engine compartment.
²The coil ground terminal (85) is connected to the
Central Timer Module (CTM) through the security
relay control circuit. The CTM energizes the head-
lamp relay control coil by internally pulling this cir-
cuit to ground.
²The coil battery terminal (86) is connected to
battery current at all times through a fused B(+) cir-
cuit that is internal to the PDC.
²The normally open terminal (87) is connected to
the headlamps at all times through the beam select
switch low beam output circuit. This circuit provides
a path to ground for the headlamps through the com-
mon feed terminal when the headlamp relay control
coil is energized by the CTM.
²The normally closed terminal (87A) is not con-
nected to any circuit in this application, but is
grounded through the common feed terminal when
the headlamp relay control coil is de-energized.
The headlamp relay can be diagnosed using con-
ventional diagnostic tools and methods.
DIAGNOSIS AND TESTING - HEADLAMP RELAY
The headlamp (or security) relay (Fig. 15) 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
Fig. 14 Power Distribution Center
1 - COVER
2 - POWER DISTRIBUTION CENTER
BR/BELAMPS/LIGHTING - EXTERIOR 8L - 17
Page 535 of 2255

(4) Pull the headlamp switch away from the
instrument panel far enough to access the instru-
ment panel wire harness connectors.
(5) Disconnect the two instrument panel wire har-
ness connectors for the headlamp switch from the
connector receptacles on the back of the switch.
(6) Remove the headlamp switch from the instru-
ment panel.
INSTALLATION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Position the headlamp switch to the instru-
ment panel.
(2) Reconnect the two instrument panel wire har-
ness connectors for the headlamp switch to the con-
nector receptacles on the back of the switch.
(3) Position the headlamp switch into the instru-
ment panel.
(4) Install and tighten the three screws that secure
the headlamp switch to the instrument panel.
Tighten the screws to 2.2 N´m (20 in. lbs.).
(5) Reinstall the cluster bezel onto the instrument
panel. (Refer to 23 - BODY/INSTRUMENT PANEL/
CLUSTER BEZEL - INSTALLATION).
(6) Connect the battery negative cable.
HEADLAMP UNIT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove push-in fastener attaching seal to radi-
ator closure panel.
(3) Remove park and turn signal lamp.
(4) Remove screws attaching top of headlamp mod-
ule to radiator closure panel (Fig. 18).
(5) From behind front bumper, remove screws
attaching bottom of headlamp module to radiator clo-
sure panel.
(6) From behind the bumper, loosen the bumper
mounting nuts to allow the bumper to lower forclearance. This is only necessary on the side to be
removed.
(7) Separate headlamp module from radiator clo-
sure panel.
(8) Disengage wire connector from headlamp
bulb(s) (Fig. 19).
(9) Separate headlamp module from vehicle.
Fig. 18 Headlamp Ð SLT
1 - HEADLAMP SOCKET
2 - CARRIER BRACKET
3 - TURN AND PARK LAMP BULB
4 - TURN AND PARK LAMP HOUSING
5 - HEADLAMP HOUSING
6 - SCREW
Fig. 19 Headlamp-Sport
1 - HIGH BEAM BULB SOCKET
2 - PUSH-IN FASTENER
3 - SEAL
4 - HEADLAMP MODULE
5 - TURN/PARK LAMP MODULE
6 - LOW BEAM BULB SOCKET
7 - TURN/PARK LAMP BULB
8L - 20 LAMPS/LIGHTING - EXTERIORBR/BE
HEADLAMP SWITCH (Continued)
Page 537 of 2255

VEHICLE PREPARATION FOR HEADLAMP
ALIGNMENT
(1) Verify headlamp dimmer switch and high beam
indicator operation.
(2) Verify headlamps are set for low beam opera-
tion.
(3) Correct defective components that could hinder
proper headlamp alignment.
(4) Verify proper tire inflation.
(5) Clean headlamp lenses.
(6) Verify that luggage area is not heavily loaded.
(7) Fuel tank should be FULL. Add 2.94 kg (6.5
lbs.) of weight over the fuel tank for each estimated
gallon of missing fuel.
HEADLAMP ADJUSTMENT
Headlamps can be aligned using the screen method
provided or alignment tool C-4466±A or equivalent
can be used. refer to the instructions provided with
the tool for proper procedures.
A properly aimed low beam headlamp will project
top edge of high intensity pattern on screen from 50
mm (2 in.) above to 50 mm (2 in.) below headlamp
centerline. The side-to-side outboard edge of high
intensity pattern should be from 50 mm (2 in.) left to
50 mm (2 in.) right of headlamp centerline. (Fig. 20)
The preferred headlamp alignment is 1º down
for the up/down adjustment and 0 for the left/
right adjustment.The high beam pattern should be
correct when the low beams are aligned properly.
To adjust headlamp aim, rotate alignment screws
(Fig. 21) to achieve the specified high intensity pat-
tern.
LICENSE PLATE LAMP
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove license plate lamp lens.
(3) Pull bulb from license plate lamp.
INSTALLATION
(1) Install bulb in license plate lamp.
(2) Install license plate lamp lens.
(3) Connect the battery negative cable.
LICENSE PLATE LAMP UNIT
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove screws attaching license plate panel to
cargo box.
(3) Disengage license plate lamp wire connector
from body wire harness (Fig. 22).
(4) Separate license plate lamp from vehicle.
INSTALLATION
(1) Position license plate lamp in vehicle.
Fig. 21 Aero Headlamp Alignment
1 - LEFT AND RIGHT ADJUSTMENT SCREW
2 - UP AND DOWN ADJUSTMENT SCREW
Fig. 22 License Plate Lamp Panel
1 - LIGHTING HARNESS
2 - BUMPER
3 - LICENSE PLATE LAMP
4 - SCREW
5 - LAMP PANEL
8L - 22 LAMPS/LIGHTING - EXTERIORBR/BE
HEADLAMP UNIT (Continued)
Page 539 of 2255

²Continuous Wipe Modes- The control knob of
the multi-function switch provides two continuous
wipe switch positions, low speed or high speed.
²Hazard Warning Control- The internal cir-
cuitry and hardware of the multi-function switch pro-
vide detent switching for activation and deactivation
of the hazard warning system.
²Headlamp Beam Selection- The internal cir-
cuitry and hardware of the multi-function switch pro-
vide detent switching for selection of the headlamp
high or low beams.
²Headlamp Optical Horn- The internal cir-
cuitry and hardware of the multi-function switch
includes momentary switching of the headlamp high
beam circuits to provide an optical horn feature
(sometimes referred to as flash-to-pass), which allows
the vehicle operator to momentarily flash the head-
lamp high beams as an optical signalling device.
²Intermittent Wipe Mode- The control knob of
the multi-function switch provides an intermittent
wipe mode with multiple delay interval positions.
²Turn Signal Control- The internal circuitry
and hardware of the multi-function switch provide
both momentary non-detent switching and detent
switching with automatic cancellation for both the
left and right turn signals.
²Washer Mode- A button on the end of the con-
trol stalk of the multi-function switch provides
washer system operation when the button is
depressed towards the steering column.
The multi-function switch cannot be adjusted or
repaired. If any function of the switch is faulty, or if
the switch is damaged, the entire switch unit must
be replaced.
OPERATION
The multi-function switch uses conventionally
switched outputs and a variable resistor to control
the many functions and features it provides using
hard wired circuitry. The switch is grounded at all
times through a single wire take out with an eyelet
terminal connector of the instrument panel wire har-
ness that is secured by a nut to a ground stud
located on the instrument panel armature, just above
and to the left of the glove box opening. When the
ignition switch is in the Accessory or On positions,
battery current from a fuse in the Junction Block
(JB) is provided through a fused ignition switch out-
put (run-acc) circuit. Following are descriptions of
how the multi-function switch operates to control the
many functions and features it provides:²Continuous Wipe Modes- When the control
knob of the multi-function switch is rotated to the
High or Low positions, the circuitry within the
switch provides a battery current output directly to
the high or low speed brush of the wiper motor.
When the control knob is in the Off position, the cir-
cuitry within the switch connects the output of the
wiper motor park switch to the low speed brush of
the wiper motor.
²Hazard Warning Control- The hazard warn-
ing push button is pushed down to unlatch the
switch and activate the hazard warning system, and
pushed down again to latch the switch and turn the
system off. When the hazard warning switch is
latched (hazard warning off), the push button will be
in a lowered position on the top of the steering col-
umn shroud; and, when the hazard warning switch is
unlatched (hazard warning on), the push button will
be in a raised position. The multi-function switch
hazard warning circuitry simultaneously provides a
signal to the hazard warning sense of the combina-
tion flasher to activate or deactivate the flasher out-
put, and directs the output of the flasher to the
hazard warning lamps.
²Headlamp Beam Selection- The multi-func-
tion switch control stalk is pulled towards the steer-
ing wheel past a detent, then released to actuate the
headlamp beam selection switch. Each time the con-
trol stalk is actuated in this manner, the opposite
headlamp mode from what is currently selected will
be activated. The internal circuitry of the headlamp
beam selection switch directs the output of the head-
lamp switch through hard wired circuitry to activate
the selected headlamp beam.
²Headlamp Optical Horn- The left multi-func-
tion switch control stalk is pulled towards the steer-
ing wheel to just before a detent, to momentarily
activate the headlamp high beams. The high beams
will remain illuminated until the control stalk is
released. The internal circuitry of the headlamp
beam selection switch provides a momentary ground
path to the headlamp high beams.
²Intermittent Wipe Mode- When the multi-
function switch control knob is rotated to the Delay
position, the circuitry within the switch connects the
output of the wiper motor relay to the low speed
brush of the wiper motor and provides a battery cur-
rent signal to the Central Timer Module (CTM). If
the Delay mode is selected, the control knob can then
be rotated to multiple minor detent positions, which
actuates a variable resistor within the switch and
provides a hard wired output to the CTM that sig-
nals the desired delay interval for the intermittent
wiper feature.
8L - 24 LAMPS/LIGHTING - EXTERIORBR/BE
MULTI-FUNCTION SWITCH (Continued)
Page 541 of 2255

MULTI-FUNCTION SWITCH TESTS
SWITCH POSITIONS
CONTINUITY BETWEEN
TURN SIGNAL HAZARD WARNING
Neutral Off Pins 12, 14, & 15
Left Off Pins 15, 16, & 17
Left Off Pins 12 & 14
Left Off *Pins 22 & 23
Right Off Pins 11, 12, & 17
Right Off Pins 14 & 15
Right Off *Pins 23 & 24
Neutral On Pins 11, 12, 13, 15, & 16
* with optional corner lamps
WIPER & WASHER SWITCH POSITIONS CONTINUITY BETWEEN
Off Pins6&7
**Delay Pins 1, 2, & 4, Pins8&9
Low Pins4&6
High Pins4&5
Wash Pins3&4
**Resistance between Pins1&2atMaximum delay position is between 270 and 330 kilohms, and at Minimum
delay position is zero ohms.
HEADLAMP BEAM SELECTION SWITCH POSITIONS CONTINUITY BETWEEN
Low Beams Pins 18 & 19
High Beams Pins 19 & 20
Flash Pins 19, 20, & 21
Fig. 25 Multi-Function Switch Tests
8L - 26 LAMPS/LIGHTING - EXTERIORBR/BE
MULTI-FUNCTION SWITCH (Continued)
Page 548 of 2255

LAMPS/LIGHTING - INTERIOR
TABLE OF CONTENTS
page page
LAMPS/LIGHTING - INTERIOR
SPECIFICATIONS
INTERIOR LAMPS.....................33
DOME LAMP
REMOVAL.............................34
INSTALLATION.........................34
DOOR AJAR SWITCH
DESCRIPTION.........................34
DIAGNOSIS AND TESTING - DOOR AJAR
SWITCH............................34
REMOVAL.............................35
INSTALLATION.........................35GLOVE BOX LAMP AND SWITCH
REMOVAL.............................35
INSTALLATION.........................36
READING LAMP
DESCRIPTION.........................36
OPERATION...........................36
REMOVAL.............................36
INSTALLATION.........................37
VANITY LAMP
REMOVAL.............................37
INSTALLATION.........................37
LAMPS/LIGHTING - INTERIOR
SPECIFICATIONS
INTERIOR LAMPS
LAMP BULB
A/C HEATER CONTROL 158
ASH RECEIVER 161
CIGAR LIGHTER 161
HEADLAMP SWITCH 158
HEATER CONTROL 158
INSTRUMENT CLUSTER PC194
RADIO ASC
AIRBAG HIGH LINE PC194
AIRBAG LOW LINE PC74
ANTI-LOCK BRAKE PC74
BATTERY VOLTAGE PC194
BRAKE WARNING PC194LAMP BULB
CHECK ENGINE PC74
ENGINE OIL PRESSURE PC74
FOUR WHEEL DRIVE PC194
HIGH BEAM PC194
LOW FUEL PC194
LOW WASHER FLUID PC74
MAINTENANCE
REQUIREDPC74
MESSAGE CENTER PC194
SEAT BELT PC74
TURN SIGNAL PC194
UPSHIFT PC74
DOME 1004
GLOVE COMPARTMENT 1891
VANITY MIRROR LAMP P/N 6501966
BR/BELAMPS/LIGHTING - INTERIOR 8L - 33
Page 640 of 2255

VEHICLE THEFT SECURITY
TABLE OF CONTENTS
page page
VEHICLE THEFT SECURITY
DESCRIPTION..........................1
OPERATION............................2
DIAGNOSIS AND TESTING - VEHICLE THEFT
SECURITY SYSTEM....................3VTSS INDICATOR
DESCRIPTION..........................3
OPERATION............................3
DIAGNOSIS AND TESTING - VTSS
INDICATOR...........................4
VEHICLE THEFT SECURITY
DESCRIPTION
The Vehicle Theft Security System (VTSS) is an
available factory-installed option on this model when
it is also equipped with the high-line or premium
Central Timer Module (CTM). The VTSS is designed
to provide perimeter protection against unauthorized
use or tampering by monitoring the vehicle doors and
the ignition system. If unauthorized vehicle use or
tampering is detected, the system responds by puls-
ing the horn, flashing the headlamps, and preventing
the engine from operating.
The VTSS includes the following major compo-
nents, which are described in further detail else-
where in this service manual:
²Central Timer Module- The high-line or pre-
mium Central Timer Module (CTM) is located under
the driver side end of the instrument panel, inboard
of the instrument panel steering column opening.
The high-line or premium CTM contains a micropro-
cessor and software that allow it to provide many
electronic functions and features not available with
base version of the CTM, including the VTSS. The
CTM provides all of the proper VTSS features and
outputs based upon the monitored inputs. The CTM
circuitry monitors hard wired switch inputs, as well
as message inputs received from other vehicle elec-
tronic modules over the Chrysler Collision Detection
(CCD) data bus network. (Refer to 8 - ELECTRICAL/
ELECTRONIC CONTROL MODULES/BODY CON-
TROL/CENTRAL TIMER MODULE -
DESCRIPTION).
²Door Ajar Switch- A door ajar switch is
located on the hinge pillar of each front door in the
vehicle. These switches provide an input to the VTSS
indicating whether the door is opened or closed.
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
INTERIOR/DOOR AJAR SWITCH - DESCRIPTION).
²Door Cylinder Lock Switch- A door cylinder
lock switch is located on the back of each front door
lock cylinder. This switch provides an input to theVTSS indicating whether the system should remain
armed or be disarmed. (Refer to 8 - ELECTRICAL/
POWER LOCKS/DOOR CYLINDER LOCK SWITCH
- DESCRIPTION).
²Horn Relay- The horn relay is located in the
Power Distribution Center (PDC) in the engine com-
partment near the battery. The horn relay is nor-
mally activated by the horn switch to control the
sounding of the vehicle horn or horns. However, it
can also be activated by an output of the Central
Timer Module (CTM) to provide an audible indication
that unauthorized vehicle use or tampering has been
detected. (Refer to 8 - ELECTRICAL/HORN/HORN
RELAY - DESCRIPTION).
²Headlamp Relay- The headlamp relay (also
known as the security relay) is located in the Power
Distribution Center (PDC) in the engine compart-
ment near the battery. The headlamp relay is nor-
mally activated by the Central Timer Module (CTM)
based upon inputs from the Remote Keyless Entry
(RKE) panic mode feature. However, it can also be
activated by an output of the CTM to flash the head-
lamp low beams to provide a highly visible indication
that unauthorized vehicle use or tampering has been
detected. (Refer to 8 - ELECTRICAL/LAMPS/LIGHT-
ING - EXTERIOR/HEADLAMP RELAY - DESCRIP-
TION).
²VTSS Indicator- A red Light Emitting Diode
(LED) located on the lower surface of the overhead
console near the windshield is illuminated by an out-
put of the Central Timer Module (CTM) to indicate
the status of the VTSS. This LED is integral to the
electronic circuit board for the Compass Mini-Trip
Computer (CMTC). (Refer to 8 - ELECTRICAL/
OVERHEAD CONSOLE/COMPASS/MINI-TRIP
COMPUTER - DESCRIPTION).
The engine no-run feature of the VTSS relies upon
communication between the high-line or premium
CTM and the Powertrain Control Module (PCM) over
the Chrysler Collision Detection (CCD) data bus net-
work.
BR/BEVEHICLE THEFT SECURITY 8Q - 1
Page 678 of 2255

8W-02 COMPONENT INDEX
Component Page
4WD Switch.......................... 8W-31
A/C Compressor Clutch Relay............ 8W-42
A/C Compressor Clutch................. 8W-42
A/C- Heater Control.................... 8W-42
A/C Heater Temperature Select........... 8W-42
A/C High Pressure Switch............... 8W-42
A/C Low Pressure Switch................ 8W-42
Accelerator Pedal Position Sensor......... 8W-30
Aftermarket Center High Mounted Stop
Lamp............................. 8W-51
Aftermarket Trailer Tow Connector........ 8W-54
Airbag Control Module.................. 8W-43
Ambient Temperature Sensor............ 8W-49
Ash Receiver Lamp.................... 8W-44
Automatic Day/Night Mirror............. 8W-49
Automatic Shut Down Relay............. 8W-30
Auxiliary Battery...................... 8W-20
Back-Up Lamp Switch.................. 8W-51
Back-Up Lamp........................ 8W-51
Battery Temperature Sensor............. 8W-30
Battery............................. 8W-20
Blend Door Actuator................... 8W-42
Blower Motor Relay.................... 8W-42
Blower Motor Resistor Block............. 8W-42
Blower Motor......................... 8W-42
Brake Lamp Switch.................... 8W-51
Brake Pressure Switch............... 8W-34, 35
Bypass Jumper....................... 8W-21
Camshaft Position Sensor............... 8W-30
Capacitor......................... 8W-10, 30
Cargo Lamps........................ 8W-44
Center High Mounted Stop Lamps........ 8W-51
Center Identification Lamp.............. 8W-50
Central Timer Module.................. 8W-45
Cigar Lighter......................... 8W-41
Circuit Breakers...................... 8W-12
Clockspring.................. 8W-33, 41, 43, 47
Clutch Pedal Position Switch............. 8W-21
Combination Flasher................... 8W-52
Controller Antilock Brake............ 8W-34, 35
Crankshaft Position Sensor.............. 8W-30
Cummins Bus........................ 8W-18
Cup Holder Lamp..................... 8W-44
Data Link Connector................... 8W-18
Daytime Running Lamp Module.......... 8W-50
Dome Lamp.......................... 8W-44
Driver Airbag......................... 8W-43
Driver Cylinder Lock Switch............. 8W-39
Driver Door Ajar Switch................ 8W-45
Driver Door Lock Motor................. 8W-61
Driver Door Window/Lock Switch...... 8W-60, 61
Driver Heated Seat Cushion............. 8W-63Component Page
Driver Heated Seat Switch.............. 8W-63
Driver Lumbar Motor.................. 8W-63
Driver Power Seat Front Vertical Motor.... 8W-63
Driver Power Seat Horizontal Motor....... 8W-63
Driver Power Seat Rear Vertical Motor..... 8W-63
Driver Power Seat Switch............... 8W-63
Driver Power Window Motor............. 8W-60
Electric Brake Provision................ 8W-54
Engine Control Module................. 8W-30
Engine Coolant Temperature Sensor....... 8W-30
Engine Oil Pressure Sensor.............. 8W-30
Engine Starter Motor Relay.............. 8W-21
Engine Starter Motor................... 8W-21
EVAP/Purge Solenoid................... 8W-30
Fender Lamp......................... 8W-51
Fog Lamp Relay....................... 8W-50
Fog Lamp............................ 8W-50
Fuel Heater Relay..................... 8W-30
Fuel Heater........................ 8W-30-36
Fuel Injection Pump................... 8W-30
Fuel Injectors......................... 8W-30
Fuel Pump Module.................... 8W-30
Fuel Pump Relay...................... 8W-30
Fuel Tank Module..................... 8W-30
Fuel Transfer Pump.................... 8W-30
Fuses (JB)........................... 8W-12
Fuses (PDC).......................... 8W-10
Fusible Link....................... 8W-20, 30
Grounds............................. 8W-15
Generator............................ 8W-20
Glove Box Lamp And Switch............. 8W-44
Headlamp Beam Select Switch........... 8W-50
Headlamp Switch...................... 8W-50
Headlamp........................... 8W-50
Heated Mirror Relay................... 8W-62
Heated Mirror Switch.................. 8W-62
Heated Seat Relay..................... 8W-12
High Note Horn....................... 8W-41
Horn Relay.......................... 8W-41
Horn Switch.......................... 8W-41
Idle Air Control Motor.................. 8W-30
Ignition Coils......................... 8W-30
Ignition Switch....................... 8W-10
Instrument Cluster.................... 8W-40
Intake Air Heater Relays................ 8W-30
Intake Air Heater..................... 8W-30
Intake Air Temperature Sensor........... 8W-30
Intermittent Wiper Switch............... 8W-53
Joint Connectors....... 8W-10, 12, 15, 30, 34, 35,
40, 44, 45, 51, 53, 54, 70
Junction Block........................ 8W-12
Leak Detection Pump.................. 8W-30
BR/BE8W-02 COMPONENT INDEX 8W - 02 - 1
Page 679 of 2255

Component Page
License Lamp......................... 8W-51
Low Note Horn....................... 8W-41
Manifold Absolute Pressure Sensor........ 8W-30
Outboard Clearance Lamps.............. 8W-50
Outboard Headlamps................... 8W-50
Outboard Identification Lamps........... 8W-50
Output Speed Sensor................... 8W-31
Overdrive Switch...................... 8W-31
Overhead Console..................... 8W-49
Oxygen Sensors....................... 8W-30
Oxygen Sensor Downstream Relay........ 8W-30
Park Brake Switch.................. 8W-40, 50
Park/Neutral Position Switch.......... 8W-30, 51
Park/Turn Signal Lamp................. 8W-52
Passenger Airbag On/Off Switch.......... 8W-43
Passenger Airbag...................... 8W-43
Passenger Cylinder Lock Switch.......... 8W-39
Passenger Door Ajar Switch.............. 8W-45
Passenger Door Lock Motor.............. 8W-61
Passenger Door Window/Lock Switch.... 8W-60, 61
Passenger Heated Seat Cushion.......... 8W-63
Passenger Heated Seat Switch........... 8W-63
Passenger Lumbar Motor................ 8W-63
Passenger Power Seat Front Vertical
Motor............................. 8W-63
Passenger Power Seat Horizontal Motor.... 8W-63
Passenger Power Seat Rear Vertical Motor . . 8W-63
Passenger Power Seat Switch............ 8W-63
Passenger Power Window Motor.......... 8W-60
Power Distribution Center............... 8W-10
Power Mirror Switch................... 8W-62Component Page
Power Mirror......................... 8W-62
Power Outlet......................... 8W-41
Powertrain Control Module.............. 8W-30
PTO Switch.......................... 8W-30
Quad High Beam Relay................. 8W-50
Radio Choke Relay..................... 8W-47
Radio............................... 8W-47
Rear Wheel Speed Sensor............ 8W-34, 35
Remote Radio Switch................... 8W-47
Splices.............................. 8W-70
Seat Belt Switch...................... 8W-40
Seat Heat Interface Module.............. 8W-63
Security Relay........................ 8W-39
Speakers............................ 8W-47
Speed Control Servo................... 8W-33
Speed Control Switches................. 8W-33
Tail/Stop/Turn Signal Lamp.............. 8W-51
Tailgate Lamps....................... 8W-51
Throttle Position Sensor................ 8W-30
Trailer Tow Connector.................. 8W-54
Trailer Tow Relay...................... 8W-54
Transmission Control Relay.............. 8W-31
Transmission Solenoid Assembly.......... 8W-31
Turn Signal/Hazard Switch.............. 8W-52
Underhood Lamp...................... 8W-44
Visor/Vanity Lamps.................... 8W-44
Washer Fluid Level Switch.............. 8W-40
Water In Fuel Sensor................... 8W-30
Wheel Speed Sensor.................... 8W-35
Windshield Washer Pump............... 8W-53
Wiper Motor Relay..................... 8W-53
8W - 02 - 2 8W-02 COMPONENT INDEXBR/BE
Page 680 of 2255

8W-10 POWER DISTRIBUTION
Component Page
A/C Compressor Clutch................ 8W-10-27
A/C Compressor Clutch Relay......... 8W-10-9, 27
Aftermarket Center High Mounted Stop
Lamp........................... 8W-10-13
Aftermarket Trailer Tow Connector....... 8W-10-21
Automatic Shut Down Relay.......... 8W-10-14, 20
Auxiliary Battery..................... 8W-10-8
Battery............................. 8W-10-8
Blower Motor....................... 8W-10-23
Blower Motor Relay................. 8W-10-8, 23
Brake Lamp Switch................. 8W-10-8, 13
Capacitor.......................... 8W-10-16
Center High Mounted Stop Lamp No. 1.... 8W-10-13
Center High Mounted Stop Lamp No. 2.... 8W-10-13
Central Timer Module.............. 8W-10-22, 26
Circuit Breaker 2.................... 8W-10-10
Clockspring......................... 8W-10-26
Combination Flasher.................. 8W-10-13
Controller Antilock Brake.............. 8W-10-23
Daytime Running Lamp Module......... 8W-10-25
Electric Brake Provision............. 8W-10-13, 21
Engine Control Module................ 8W-10-12
Engine Starter Motor................. 8W-10-23
Engine Starter Motor Relay........... 8W-10-8, 23
Fog Lamp Relay..................... 8W-10-25
Fuel Heater........................ 8W-10-20
Fuel Heater Relay.................. 8W-10-8, 20
Fuel Injection Pump.................. 8W-10-12
Fuel Injector No. 1................. 8W-10-15, 16
Fuel Injector No. 2................. 8W-10-15, 16
Fuel Injector No. 3................. 8W-10-15, 16
Fuel Injector No. 4................. 8W-10-15, 16
Fuel Injector No. 5................. 8W-10-15, 16
Fuel Injector No. 6................. 8W-10-15, 16
Fuel Injector No. 7................. 8W-10-15, 16
Fuel Injector No. 8................. 8W-10-15, 16
Fuel Injector No. 9................... 8W-10-16
Fuel Injector No. 10................... 8W-10-16
Fuel Pump Module................... 8W-10-11
Fuel Pump Relay.................. 8W-10-11, 12
Fuse 1 (JB)......................... 8W-10-10
Fuse 1 (PDC)...................... 8W-10-8, 10
Fuse 2 (PDC)................... 8W-10-8, 10, 22
Fuse 3 (PDC)................... 8W-10-8, 11, 12
Fuse 4 (JB)......................... 8W-10-10
Fuse 4 (PDC)...................... 8W-10-8, 13
Fuse 5 (PDC)...................... 8W-10-8, 13
Fuse 6 (PDC)................... 8W-10-8, 14, 20
Fuse 7 (PDC)...................... 8W-10-8, 20
Fuse 8 (PDC)...................... 8W-10-8, 21
Fuse 9 (PDC)...................... 8W-10-8, 23
Fuse 10 (PDC)..................... 8W-10-8, 22
Fuse 11 (PDC)..................... 8W-10-8, 23
Fuse 12 (JB)........................ 8W-10-10
Fuse 12 (PDC)................... 8W-10-8, 9, 23
Fuse 13 (JB)........................ 8W-10-10
Component Page
Fuse 14 (JB)........................ 8W-10-10
Fuse B (PDC)................... 8W-10-8, 9, 24
Fuse C (PDC)..................... 8W-10-9, 24
Fuse E (PDC)..................... 8W-10-9, 24
Fuse F (PDC)..................... 8W-10-9, 24
Fuse G (PDC)..................... 8W-10-9, 25
Fuse H (PDC)..................... 8W-10-9, 26
Fuse I (PDC)...................... 8W-10-9, 26
Fuse J (PDC)...................... 8W-10-9, 27
Fuse K (PDC)............. 8W-10-9, 14, 17, 18, 19
Fuse L (PDC)..................... 8W-10-9, 27
Fuse Gen (PDC)................... 8W-10-8, 27
G201............................. 8W-10-22
Generator........................ 8W-10-8, 27
Headlamp Beam Select Switch........... 8W-10-25
Headlamp Switch.................. 8W-10-9, 24
High Note Horn..................... 8W-10-26
Horn Relay....................... 8W-10-9, 26
Ignition Coil........................ 8W-10-15
Ignition Coil 4 Pack................... 8W-10-16
Ignition Coil 6 Pack................... 8W-10-16
Ignition Switch................. 8W-10-8, 10, 22
Joint Connector No. 1.............. 8W-10-25, 26
Joint Connector No. 2........ 8W-10-8, 9, 11, 12, 14,
15, 16, 20, 21
Joint Connector No. 5................. 8W-10-22
Joint Connector No. 6............ 8W-10-13, 22, 26
Joint Connector No. 8................. 8W-10-22
Junction Block.................. 8W-10-8, 10, 13
Left Fog Lamp...................... 8W-10-25
Left Headlamp...................... 8W-10-24
Left Outboard Headlamp.......... 8W-10-9, 24, 25
Low Note Horn...................... 8W-10-26
Oxygen Sensor 1/1 Left Bank Up . . . 8W-10-17, 18, 19
Oxygen Sensor 1/1 Upstream............ 8W-10-17
Oxygen Sensor 1/2 Downstream.......... 8W-10-17
Oxygen Sensor 1/2 Left Bank Down....... 8W-10-19
Oxygen Sensor 1/2 Pre-Catalyst.......... 8W-10-18
Oxygen Sensor 1/3 Post-Catalyst......... 8W-10-18
Oxygen Sensor 2/1 Right Bank Up . . 8W-10-17, 18, 19
Oxygen Sensor 2/2 Right Bank Down...... 8W-10-19
Oxygen Sensor Downstream Relay..... 8W-10-18, 19
Power Distribution Center.... 8W-10-8, 9, 10, 11, 12,
13, 14, 2, 20, 21, 22, 23, 24, 25, 26, 27
Power Outlet...................... 8W-10-9, 27
Powertrain Control Module . . 8W-10-11, 12, 15, 16, 20
Quad High Beam Relay................ 8W-10-24
Right Fog Lamp..................... 8W-10-25
Right Headlamp..................... 8W-10-24
Right Outboard Headlamp......... 8W-10-9, 24, 25
Security Relay..................... 8W-10-9, 25
Trailer Tow Connector................. 8W-10-21
Trailer Tow Relay.................... 8W-10-21
Transmission Control Relay........... 8W-10-9, 26
Transmission Solenoid Assembly......... 8W-10-26
Turn Signal/Hazard Switch............. 8W-10-13
BR/BE8W-10 POWER DISTRIBUTION 8W - 10 - 1