fuel DODGE RAM 2001 Service Manual PDF
[x] Cancel search | Manufacturer: DODGE, Model Year: 2001, Model line: RAM, Model: DODGE RAM 2001Pages: 2889, PDF Size: 68.07 MB
Page 596 of 2889

OPERATION
The water-in-fuel indicator gives an indication to
the vehicle operator when the water accumulated in
the diesel engine fuel filter/separator filter bowl
requires draining. This indicator is controlled by a
transistor on the instrument cluster circuit board
based upon cluster programming and electronic mes-
sages received by the cluster from the Engine Control
Module (ECM) over the Chrysler Collision Detection
(CCD) data bus. The water-in-fuel indicator Light
Emitting Diode (LED) receives battery current on the
instrument cluster electronic circuit board through
the fused ignition switch output (st-run) circuit
whenever the ignition switch is in the On or Start
positions; therefore, the indicator will always be off
when the ignition switch is in any position except On
or Start. The LED only illuminates when it is
switched to ground by the instrument cluster transis-
tor. The instrument cluster will turn on the water-in-
fuel indicator for the following reasons:
²Bulb Test- Each time the ignition switch is
turned to the On position the indicator is illuminated
for about two seconds as a bulb test.
²Water-In-Fuel Lamp-On Message- Each time
the cluster receives a water-in-fuel lamp-on messagefrom the ECM, the indicator will be illuminated. The
indicator remains illuminated until the cluster
receives a water-in-fuel lamp-off message from the
ECM or until the ignition switch is turned to the Off
position, whichever occurs first.
²Actuator Test- Each time the cluster is put
through the actuator test, the indicator will be
turned on during the bulb check portion of the test to
confirm the functionality of the LED and the cluster
control circuitry.
The ECM continually monitors the water-in-fuel
sensor, then sends the proper messages to the instru-
ment cluster. For further diagnosis of the water-in-
fuel indicator or the instrument cluster circuitry that
controls the indicator, (Refer to 8 - ELECTRICAL/IN-
STRUMENT CLUSTER - DIAGNOSIS AND TEST-
ING). For proper diagnosis of the water-in-fuel
sensor, the ECM, the CCD data bus, or the message
inputs to the instrument cluster that control the
water-in-fuel indicator, a DRBIIItscan tool is
required. Refer to the appropriate diagnostic
information.
BR/BEINSTRUMENT CLUSTER 8J - 37
WATER-IN-FUEL INDICATOR (Continued)
Page 618 of 2889

(5) From behind the bumper, tighten the bumper
mounting nuts.
(6) Install the screws attaching top of headlamp
module to radiator closure panel.
(7) Install park and turn signal lamp.
(8) Install push-in fastener attaching seal to radi-
ator closure panel.
(9) Connect the battery negative cable.
ADJUSTMENTS
LAMP ALIGNMENT SCREEN PREPARATION
(1) Position vehicle on a level surface perpendicu-
lar to a flat wall 7.62 meters (25 ft) away from front
of headlamp lens (Fig. 20).
(2) If necessary, tape a line on the floor 7.62
meters (25 ft) away from and parallel to the wall.
(3) Up 1.27 meters (5 feet) from the floor, tape a
line on the wall at the centerline of the vehicle. Sight
along the centerline of the vehicle (from rear of vehi-
cle forward) to verify accuracy of the line placement.
(4) Rock vehicle side-to-side three times to allow
suspension to stabilize.
(5) Jounce front suspension three times by pushing
downward on front bumper and releasing.(6) Measure the distance from the center of head-
lamp lens to the floor. Transfer measurement to the
alignment screen (with tape). Use this line for
up/down adjustment reference.
(7) Measure distance from the centerline of the
vehicle to the center of each headlamp being aligned.
Transfer measurements to screen (with tape) to each
side of vehicle centerline. Use these lines for left/
right adjustment reference.
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.
Fig. 20 Lamp Alignment ScreenÐTypical
1 - CENTER OF VEHICLE
2 - CENTER OF HEADLAMP3 - 7.62 METERS (25 FT.)
4 - FRONT OF HEADLAMP
BR/BELAMPS/LIGHTING - EXTERIOR 8L - 21
HEADLAMP UNIT (Continued)
Page 630 of 2889

LAMPS/LIGHTING - INTERIOR
TABLE OF CONTENTS
page page
LAMPS/LIGHTING - INTERIOR
SPECIFICATIONS........................33
DOME LAMP
REMOVAL..............................33
INSTALLATION...........................33
DOOR AJAR SWITCH
DESCRIPTION...........................34
DIAGNOSIS AND TESTING.................34
DOOR AJAR SWITCH....................34
REMOVAL..............................35
INSTALLATION...........................35GLOVE BOX LAMP AND SWITCH
REMOVAL..............................35
INSTALLATION...........................35
READING LAMP
DESCRIPTION...........................36
OPERATION.............................36
REMOVAL..............................36
INSTALLATION...........................36
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 PC194
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
LAMP BULB
TURN SIGNAL PC194
UPSHIFT PC74
DOME 1004
GLOVE COMPARTMENT 1891
VANITY MIRROR LAMP P/N 6501966
DOME LAMP
REMOVAL
(1) Using a small flat blade, pry the left side (driv-
er's side) of the dome lamp lens downward from
dome lamp.
(2) Allow the lens to hang down (Fig. 1) , this will
disengage the right side of the lamp (passenger's
side) from the headliner.
(3) Pull the right side of the lamp down and slide
the lamp to the right (Fig. 2) .
(4) Separate the lamp from the headliner.
(5) Disengage dome lamp wire connector from body
wire harness.
(6) Separate dome lamp from vehicle.
INSTALLATION
(1) Position dome lamp at headliner.
(2) Connect dome lamp wire connector to body
wire harness.
(3) Position the left side of the lamp in the head-
liner opening and slide lamp to the left.
(4) Push the right side of the lamp in the head-
liner opening and push the lamp lens up into the
lamp to secure.
BR/BELAMPS/LIGHTING - INTERIOR 8L - 33
Page 644 of 2889

Compass mini-trip computer units for vehicles
equipped with the VTSS include a red Light-Emit-
ting Diode (LED) on their electronic circuit board.
This LED protrudes through the bottom of the lens
on the front of the overhead console unit, and serves
as the security indicator lamp. Refer toSecurity
Indicator Lampin Vehicle Theft/Security Systems
for more information on this feature.
The compass mini-trip computer module contains a
central processing unit and interfaces with other
electronic modules in the vehicle on the Chrysler Col-
lision Detection (CCD) data bus network. The CCD
data bus network allows the sharing of sensor infor-
mation. This helps to reduce wire harness complexity,
reduce internal controller hardware, and reduce com-
ponent sensor current loads. At the same time, this
system provides increased reliability, enhanced diag-
nostics, and allows the addition of many new feature
capabilities.
The compass mini-trip computer provides several
electronic functions and features. Some of the func-
tions and features that the compass mini-trip com-
puter module supports and/or controls, include the
following display options:
²Compass and temperature- provides the out-
side temperature and one of eight compass readings
to indicate the direction the vehicle is facing.
²Compass and compass in degrees- provides
one of eight compass readings to indicate the direc-
tion the vehicle is facing and provides the compass
direction in degrees.
²Trip odometer (ODO)- shows the distance
travelled since the last trip computer reset.
²Average fuel economy (AVG ECO)- shows
the average fuel economy since the last trip computer
reset.
²Instant fuel economy (ECO)- shows the
present fuel economy based upon the current vehicle
distance and fuel used information.
²Distance to empty (DTE)- shows the esti-
mated distance that can be travelled with the fuel
remaining in the fuel tank. This estimated distance
is computed using the average miles-per-gallon from
the last 30 gallons of fuel used.
²Elapsed time (ET)- shows the accumulated
ignition-on time since the last trip computer reset.
²Blank screen- the compass mini-trip VFD is
turned off.
The ambient temperature sensor is hard wired to
the compass mini-trip computer module. Data input
for all other compass mini-trip computer functions,
including VFD dimming level, is received through
CCD data bus messages. The compass mini-trip com-
puter uses its internal programming and all of these
inputs to calculate and display the requested data. If
the data displayed is incorrect, perform the self-diag-nostic tests as described in this group. If these tests
prove inconclusive, the use of a DRBIIItscan tool
and the proper Diagnostic Procedures manual are
recommended for further testing of the compass
mini-trip computer module and the CCD data bus.
The compass mini-trip computer module cannot be
repaired, and is available for service only as a unit. If
faulty or damaged, the complete module must be
replaced.
OPERATION
The compass mini-trip computer only operates with
the ignition switch in the On position. When the igni-
tion switch is turned to the On position, all of the
segments in the compass mini-trip computer VFD
will be turned on for one second, then the display
will return to the last function being displayed before
the ignition was turned to the Off position. With the
ignition switch in the On position, momentarily
depressing and releasing the Step push button switch
will cause the compass-mini-trip computer to change
its mode of operation, and momentarily depressing
and releasing the U.S./Metric push button will cause
the unit to toggle between U.S. and Metric measure-
ments. While in either compass mode, depressing the
U.S./Metric push button for more than ten seconds
will toggle the display between the compass/temper-
ature and the compass/compass in degrees modes.
This compass mini-trip computer features several
functions that can be reset. If both the Step and U.S./
Metric push buttons are depressed at the same time
with the ignition switch in the On position, the trip
computer information that can be reset is reset.
Depressing and releasing the Step and U.S./Metric
push buttons at the same time for more than 100
milliseconds, but not more than one second while in
any display mode (except the compass/temperature
mode) will cause a local reset. A local reset affects
only the function currently displayed. See the Reset
Chart below for more information on this feature.
Performing a local reset while in the compass/tem-
perature mode enters the module into the compass
variance setting mode.
Depressing and releasing the Step and U.S./Metric
push buttons at the same time for more than two
seconds while in any display mode (except the com-
pass/temperature mode) will cause a global reset. A
global reset changes all of the trip computer func-
tions that can be reset.
For more information on the features and control
functions of the compass mini-trip computer, see the
owner's manual in the vehicle glove box.
BR/BEMESSAGE SYSTEMS 8M - 9
COMPASS/MINI-TRIP COMPUTER (Continued)
Page 742 of 2889

WIRING
TABLE OF CONTENTS
page page
WIRING DIAGRAM INFORMATION....... 8W-01-1
COMPONENT INDEX.................. 8W-02-1
POWER DISTRIBUTION............... 8W-10-1
JUNCTION BLOCK.................... 8W-12-1
GROUND DISTRIBUTION.............. 8W-15-1
BUS COMMUNICATIONS.............. 8W-18-1
CHARGING SYSTEM.................. 8W-20-1
STARTING SYSTEM.................. 8W-21-1
FUEL/IGNITION SYSTEM.............. 8W-30-1
TRANSMISSION CONTROL SYSTEM..... 8W-31-1
VEHICLE SPEED CONTROL............ 8W-33-1
REAR WHEEL ANTILOCK BRAKES....... 8W-34-1
ALL WHEEL ANTILOCK BRAKES........ 8W-35-1
VEHICLE THEFT SECURITY SYSTEM..... 8W-39-1
INSTRUMENT CLUSTER............... 8W-40-1
HORN/CIGAR LIGHTER/POWER OUTLET . . 8W-41-1
AIR CONDITIONING-HEATER........... 8W-42-1
AIRBAG SYSTEM.................... 8W-43-1INTERIOR LIGHTING.................. 8W-44-1
CENTRAL TIMER MODULE............. 8W-45-1
AUDIO SYSTEM..................... 8W-47-1
OVERHEAD CONSOLE................. 8W-49-1
FRONT LIGHTING.................... 8W-50-1
REAR LIGHTING..................... 8W-51-1
TURN SIGNALS...................... 8W-52-1
WIPERS............................ 8W-53-1
TRAILER TOW....................... 8W-54-1
POWER WINDOWS................... 8W-60-1
POWER DOOR LOCKS................ 8W-61-1
POWER MIRRORS................... 8W-62-1
POWER SEATS...................... 8W-63-1
SPLICE INFORMATION................ 8W-70-1
CONNECTOR PIN-OUTS............... 8W-80-1
CONNECTOR/GROUND LOCATIONS...... 8W-90-1
SPLICE LOCATIONS.................. 8W-95-1
POWER DISTRIBUTION............... 8W-97-1 BR/BEWIRING 8W - 1
Page 756 of 2889

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 Lamps....................... 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
Cylinder Lock Switches................ 8W-39
Data Link Connector................... 8W-18
Daytime Running Lamp Module.......... 8W-50
Dome Lamp.......................... 8W-44
Door Ajar Switches.................... 8W-45
Door Lock Motors..................... 8W-61
Door Window/Lock Switches.......... 8W-60, 61
Driver Airbag......................... 8W-43
Duty Cycle EVAP/Purge Solenoid......... 8W-30Component Page
Electric Brake Provision................ 8W-54
Engine Control Module.............. 8W-30, 70
Engine Coolant Temperature Sensor....... 8W-30
Engine Oil Pressure Sensor.............. 8W-30
Engine Starter Motor Relay.............. 8W-21
Engine Starter Motor................... 8W-21
Fender Lamp......................... 8W-51
Fog Lamp Indicator.................... 8W-50
Fog Lamp Relay....................... 8W-50
Fog Lamp............................ 8W-50
Fuel Heater Relay..................... 8W-30
Fuel Heater.......................... 8W-30
Fuel Injection Pump................... 8W-30
Fuel Injectors......................... 8W-30
Fuel Transfer Pump.................... 8W-30
Fuses (JB)........................... 8W-12
Fuses (PDC).......................... 8W-10
Fusible Link....................... 8W-20, 30
Generator............................ 8W-20
Glove Box Lamp And Switch............. 8W-44
Grounds............................. 8W-15
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 Cushions.................. 8W-63
Heated Seat Relay..................... 8W-12
Heated Seat Switches.................. 8W-63
High Beam Indicator................... 8W-40
High Note Horn....................... 8W-41
Horn Relay.......................... 8W-41
Horn Switch.......................... 8W-41
Idle Air Control Motor.................. 8W-30
Ignition Coil 4-Pack.................... 8W-30
Ignition Coil 6-Pack.................... 8W-30
Ignition Coil.......................... 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, 31, 34, 35, 40,
44, 45, 51, 53, 70
Junction Block........................ 8W-12
Leak Detection Pump.................. 8W-30
License Lamp......................... 8W-51
Low Note Horn....................... 8W-41
Lumbar Motors....................... 8W-63
Manifold Absolute Pressure Sensor........ 8W-30
Manifold Air Pressure Sensor............ 8W-30
BR/BE8W-02 COMPONENT INDEX 8W - 02 - 1
Page 757 of 2889

Component Page
Map Lamps.......................... 8W-49
Outboard Clearance Lamp............... 8W-50
Outboard Headlamp................... 8W-50
Outboard Identification Lamp............ 8W-50
Output Speed Sensor................... 8W-31
Overdrive Switch...................... 8W-31
Overhead Console..................... 8W-49
Oxygen Sensors....................... 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
Power Distribution Center............... 8W-10
Power Mirror Switch................... 8W-62
Power Mirror......................... 8W-62
Power Outlet......................... 8W-41
Power Seat Front Vertical Motors......... 8W-63
Power Seat Horizontal Motors............ 8W-63
Power Seat Rear Vertical Motor........... 8W-63
Power Seat Switch..................... 8W-63
Power Window Motors.................. 8W-60
Powertrain Control Module.............. 8W-30
PTO Switch.......................... 8W-30
Quad High Beam Relay................. 8W-50
Radio Choke Relay..................... 8W-47Component Page
Radio............................... 8W-47
Remote Radio Switch................... 8W-47
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 Switch................... 8W-33
Splice Information..................... 8W-70
Tail/Stop/Turn Signal Lamp.............. 8W-51
Tailgate Lamp........................ 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 Lamp..................... 8W-44
Washer Fluid Level Switch.............. 8W-40
Water In Fuel Sensor................... 8W-30
Wheel Speed Sensors................ 8W-34, 35
Windshield Washer Pump............... 8W-53
Wiper Motor Relay..................... 8W-53
Wiper Motor.......................... 8W-53
BR/BE8W-02 COMPONENT INDEX 8W - 02 - 1
Page 758 of 2889

8W-10 POWER DISTRIBUTION
Component Page
A/C Compressor Clutch Relay.......... 8W-10-27
A/C Compressor Clutch............... 8W-10-27
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 Relay.................. 8W-10-23
Blower Motor....................... 8W-10-23
Brake Lamp Switch.................. 8W-10-13
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 C1............. 8W-10-22
Central Timer Module C2............. 8W-10-26
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 Relay............ 8W-10-23
Engine Starter Motor................. 8W-10-23
Fog Lamp Relay..................... 8W-10-25
Fuel Heater Relay................... 8W-10-20
Fuel Heater........................ 8W-10-20
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-10-10, 8
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-10-13, 8
Fuse 5 (PDC)..................... 8W-10-13, 8
Fuse 6 (PDC).................. 8W-10-14, 20, 8
Fuse 7 (PDC)..................... 8W-10-20, 8
Fuse 8 (PDC)..................... 8W-10-21, 8
Fuse 9 (PDC)..................... 8W-10-23, 8
Fuse 10 (PDC).................... 8W-10-22, 8
Fuse 11 (PDC).................... 8W-10-23, 8
Fuse 12 (JB)....................... 8W-10-10
Fuse 12 (PDC).................... 8W-10-23, 8
Fuse 13 (JB)....................... 8W-10-10Component Page
Fuse 14 (JB)....................... 8W-10-10
Fuse B (PDC)..................... 8W-10-24, 9
Fuse C (PDC)..................... 8W-10-24, 9
Fuse E (PDC)..................... 8W-10-24, 9
Fuse F (PDC)..................... 8W-10-24, 9
Fuse G (PDC)..................... 8W-10-25, 9
Fuse GEN (PDC).................. 8W-10-27, 8
Fuse H (PDC).................... 8W-10-26, 9
Fuse I (PDC)..................... 8W-10-26, 9
Fuse J (PDC)..................... 8W-10-27, 9
Fuse K (PDC)..................... 8W-10-14, 9
Fuse L (PDC)..................... 8W-10-27, 9
G201............................. 8W-10-22
Generator......................... 8W-10-27
Headlamp Beam Select Switch.......... 8W-10-25
Headlamp Switch.................... 8W-10-24
High Note Horn..................... 8W-10-26
Horn Relay...................... 8W-10-26, 9
Ignition Coil 4-Pack.................. 8W-10-16
Ignition Coil 6-Pack.................. 8W-10-16
Ignition Coil........................ 8W-10-15
Ignition Switch................... 8W-10-10, 22
Joint Connector No. 1.............. 8W-10-25, 26
Joint Connector No. 2..... 8W-10-11, 12, 14, 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-10-10, 13
Left Fog Lamp...................... 8W-10-25
Left Headlamp...................... 8W-10-24
Left Outboard Headlamp........... 8W-10-24, 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-10-2, 8, 9, 10, 11, 12,
13, 14, 20, 21, 22, 23,
24, 25, 26, 27
Power Outlet....................... 8W-10-27
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-10-24, 25
Security Relay...................... 8W-10-25
Trailer Tow Connector................ 8W-10-21
Trailer Tow Relay.................... 8W-10-21
Transmission Control Relay............ 8W-10-26
Transmission Solenoid Assembly........ 8W-10-26
Turn Signal/Hazard Switch............ 8W-10-13
BR/BE8W-10 POWER DISTRIBUTION 8W - 10 - 1
Page 786 of 2889

8W-12 JUNCTION BLOCK
Component Page
A/C Compressor Clutch Relay.......... 8W-12-13
A/C-Heater Control................... 8W-12-9
A/C Heater Temperature Select......... 8W-12-8
Airbag Control Module............... 8W-12-17
Ambient Temperature Sensor.......... 8W-12-19
Ash Receiver Lamp................... 8W-12-9
Automatic Day/Night Mirror..... 8W-12-13, 15, 21
Back-Up Lamp Switch............. 8W-12-11, 21
Blend Door Actuator.................. 8W-12-8
Blower Motor Relay.................. 8W-12-8
Cargo Lamp No. 1................... 8W-12-14
Cargo Lamp No. 2................... 8W-12-14
Central Timer Module C1....... 8W-12-10, 13, 15
Central Timer Module C2........... 8W-12-8, 13
Cigar Lighter...................... 8W-12-16
Circuit Breaker 1.................. 8W-12-6, 7
Circuit Breaker 2.................... 8W-12-7
Combination Flasher......... 8W-12-6, 12, 15, 20
Controller Antilock Brake.............. 8W-12-8
Cup Holder Lamp.................... 8W-12-9
Data Link Connector................. 8W-12-14
Daytime Running Lamp Module........ 8W-12-11
Dome Lamp....................... 8W-12-14
Driver Door Window/Lock Switch..... 8W-12-15, 7
Driver Heated Seat Switch........... 8W-12-8, 9
Driver Power Seat Switch.............. 8W-12-7
Duty Cycle EVAP/Purge Solenoid....... 8W-12-13
Engine Control Module............... 8W-12-12
Fuel Heater Relay................... 8W-12-13
Fuel Pump Relay................... 8W-12-12
Fuse 1 (JB)......................... 8W-12-8
Fuse 1 (PDC)...................... 8W-12-16
Fuse 2 (JB)....................... 8W-12-6, 8
Fuse 3 (JB)....................... 8W-12-6, 8
Fuse 4 (JB)........................ 8W-12-10
Fuse 4 (PDC)...................... 8W-12-20
Fuse 5 (JB)......................... 8W-12-9
Fuse 6 (JB)...................... 8W-12-6, 10
Fuse 7 (JB)...................... 8W-12-6, 11
Fuse 8 (JB)...................... 8W-12-6, 11
Fuse 9 (JB)...................... 8W-12-6, 12
Fuse 10 (JB).................. 8W-12-6, 12, 20
Fuse 11 (JB)..................... 8W-12-6, 13
Fuse 12 (JB)....................... 8W-12-14
Fuse 13 (JB)....................... 8W-12-15
Fuse 14 (JB)....................... 8W-12-16Component Page
Fuse 15 (JB)..................... 8W-12-6, 16
Fuse 16 (JB)..................... 8W-12-6, 16
Fuse 17 (JB)..................... 8W-12-6, 17
Fuse 18 (JB)..................... 8W-12-6, 17
Fuse 19 (JB)..................... 8W-12-6, 17
G100............................. 8W-12-18
G200.......................... 8W-12-15, 19
G201....................... 8W-12-15, 18, 20
Glove Box Lamp And Switch........... 8W-12-14
Headlamp Switch.................... 8W-12-9
Heated Mirror Switch................. 8W-12-8
Heated Seat Relay................... 8W-12-8
Ignition Switch................... 8W-12-6, 20
Instrument Cluster.......... 8W-12-9, 16, 17, 18
Intermittent Wiper Switch............ 8W-12-10
Joint Connector No. 1............. 8W-12-11, 21
Joint Connector No. 3................ 8W-12-18
Joint Connector No. 4................ 8W-12-18
Joint Connector No. 5.............. 8W-12-9, 14
Joint Connector No. 6................ 8W-12-10
Joint Connector No. 8........... 8W-12- 8, 9, 17
Junction Block............ 8W-12-2, 3, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21
Left Park/Turn Signal Lamp........... 8W-12-18
Left Visor/Vanity Lamp............ 8W-12-14, 15
Overhead Console.......... 8W-12-13, 14, 19, 21
Park/Neutral Position Switch....... 8W-12-11, 21
Passenger Airbag On/Off Switch........ 8W-12-17
Passenger Door Window/Lock Switch . . 8W-12-7, 15
Passenger Heated Seat Switch........ 8W-12-8, 9
Passenger Power Seat Switch........... 8W-12-7
Power Distribution Center......... 8W-12-16, 20
Power Mirror Switch.............. 8W-12-14, 21
Powertrain Control Module............ 8W-12-12
Radio Choke Relay.................. 8W-12-10
Radio....................... 8W-12-9, 11, 14,
Right Park/Turn Signal Lamp.......... 8W-12-18
Right Visor/Vanity Lamp........... 8W-12-14, 15
Seat Heat Interface Module............ 8W-12-8
Turn Signal/Hazard Switch......... 8W-12-18, 20
Underhood Lamp................... 8W-12-14
Windshield Washer Pump............. 8W-12-10
Wiper Motor Relay.................. 8W-12-10
Wiper Motor....................... 8W-12-10
BR/BE8W-12 JUNCTION BLOCK 8W - 12 - 1
Page 808 of 2889

8W-15 GROUND DISTRIBUTION
Component Page
A/C Compressor Clutch............... 8W-15-10, 8
A/C-Heater Control.................... 8W-15-14
A/C Heater Temperature Select........... 8W-15-12
Aftermarket Trailer Tow Connector......... 8W-15-6
Airbag Control Module.................. 8W-15-5
Ash Receiver Lamp.................... 8W-15-14
Automatic Day/Night Mirror............. 8W-15-13
Auxiliary Battery..................... 8W-15-11
Battery............................ 8W-15-11
Blend Door Actuator................... 8W-15-12
Blower Motor Relay.................... 8W-15-2
Brake Lamp Switch................... 8W-15-12
Brake Pressure Switch.................. 8W-15-3
Center High Mounted Stop Lamp No. 1..... 8W-15-17
Center High Mounted Stop Lamp No. 2..... 8W-15-17
Center Identification Lamp.............. 8W-15-18
Central Timer Module C1............... 8W-15-12
Central Timer Module C2............... 8W-15-13
Cigar Lighter........................ 8W-15-14
Clockspring.......................... 8W-15-4
Combination Flasher.................. 8W-15-13
Controller Antilock Brake................ 8W-15-5
Cummins Bus....................... 8W-15-10
Cup Holder Lamp..................... 8W-15-14
Data Link Connector.............. 8W-15-8, 10, 12
Daytime Running Lamp Module......... 8W-15-2, 3
Driver Cylinder Lock Switch............. 8W-15-16
Driver Door Ajar Switch................ 8W-15-16
Driver Door Window/Lock Switch....... 8W-15-16, 17
Driver Heated Seat Cushion............. 8W-15-15
Driver Heated Seat Switch.............. 8W-15-13
Driver Power Seat Switch............ 8W-15-15, 17
Electric Brake Provision................ 8W-15-14
Engine Control Module.................. 8W-15-9
Engine Starter Motor Relay............. 8W-15-8, 9
Fuel Heater Relay..................... 8W-15-2
Fuel Heater......................... 8W-15-10
Fuel Injection Pump.................... 8W-15-9
Fuel Pump Module..................... 8W-15-7
Fuel Pump Relay...................... 8W-15-2
Fuel Transfer Pump................... 8W-15-10
G100.......................... 8W-15-12, 5, 7
G101............................... 8W-15-5
G102............................... 8W-15-2
G105............................... 8W-15-8
G107.............................. 8W-15-10
G113 .............................. 8W-15-11
G114 .............................. 8W-15-11
G115 .............................. 8W-15-11
G116 .............................. 8W-15-11
G117 .............................. 8W-15-11
G118 .............................. 8W-15-11
G120.............................. 8W-15-11
G200......................... 8W-15-7, 12, 14
G201........................... 8W-15-12, 14
G300.............................. 8W-15-16
G301.............................. 8W-15-17
G302.............................. 8W-15-18
Glove Box Lamp And Switch............. 8W-15-14
Headlamp Beam Select Switch............ 8W-15-14
Headlamp Switch.................. 8W-15-13, 14
Heated Mirror Switch.................. 8W-15-13
High Note Horn....................... 8W-15-7
Ignition Switch....................... 8W-15-13
Instrument Cluster................. 8W-15-12, 14
Intake Air Heater Relay No. 1............. 8W-15-9Component Page
Intake Air Heater Relay No. 2............. 8W-15-9
Joint Connector No. 1................... 8W-15-2
Joint Connector No. 2................... 8W-15-9
Joint Connector No. 3................... 8W-15-7
Joint Connector No. 4................... 8W-15-3
Joint Connector No. 5.................. 8W-15-13
Joint Connector No. 6................... 8W-15-4
Joint Connector No. 8................ 8W-15-13, 5
Junction Block.................... 8W-15-12, 13
Left Back-Up Lamp.................... 8W-15-6
Left Front Door Speaker................. 8W-15-4
Left Front Fender Lamp................. 8W-15-6
Left License Lamp..................... 8W-15-6
Left Outboard Clearance Lamp........... 8W-15-18
Left Outboard Identification Lamp......... 8W-15-18
Left Park/Turn Signal Lamp.............. 8W-15-3
Left Power Mirror..................... 8W-15-16
Left Rear Fender Lamp................. 8W-15-6
Left Remote Radio Switch................ 8W-15-4
Left Tail/Stop/Turn Signal Lamp........... 8W-15-6
Left Visor/Vanity Lamp................. 8W-15-13
Low Note Horn....................... 8W-15-7
Overdrive Switch..................... 8W-15-12
Overhead Console..................... 8W-15-12
Oxygen Sensor 1/2 Left Bank Down......... 8W-15-8
Oxygen Sensor 1/2 Pre-Catalyst............ 8W-15-8
Oxygen Sensor 1/3 Post-Catalyst........... 8W-15-8
Oxygen Sensor 2/2 Right Bank Down........ 8W-15-8
Passenger Airbag On/Off Switch........... 8W-15-5
Passenger Cylinder Lock Switch.......... 8W-15-16
Passenger Door Ajar Switch.............. 8W-15-16
Passenger Door Window/Lock Switch....... 8W-15-16
Passenger Heated Seat Cushion........... 8W-15-15
Passenger Heated Seat Switch............ 8W-15-13
Passenger Power Seat Switch............ 8W-15-15
Power Distribution Center............... 8W-15-2
Power Mirror Switch................... 8W-15-16
Power Outlet........................ 8W-15-14
Powertrain Control Module............ 8W-15-8 , 10
Quad High Beam Relay................. 8W-15-2
Radio Choke Relay..................... 8W-15-4
Radio.............................. 8W-15-5
Right Back-Up Lamp................... 8W-15-6
Right Front Door Speaker................ 8W-15-4
Right Front Fender Lamp................ 8W-15-6
Right License Lamp.................... 8W-15-6
Right Outboard Clearance Lamp.......... 8W-15-18
Right Outboard Identification Lamp........ 8W-15-18
Right Park/Turn Signal Lamp............. 8W-15-7
Right Power Mirror................... 8W-15-16
Right Rear Fender Lamp................ 8W-15-6
Right Remote Radio Switch............... 8W-15-4
Right Tail/Stop/Turn Signal Lamp.......... 8W-15-6
Right Visor/Vanity Lamp................ 8W-15-13
Seat Belt Switch................... 8W-15-15, 17
Seat Heat Interface Module.............. 8W-15-15
Security Relay........................ 8W-15-2
Speed Control Servo.................... 8W-15-3
Tailgate Lamp........................ 8W-15-6
Trailer Tow Connector.................. 8W-15-6
Trailer Tow Relay...................... 8W-15-2
Underhood Lamp...................... 8W-15-3
Washer Fluid Level Switch............... 8W-15-3
Windshield Washer Pump................ 8W-15-7
Wiper Motor......................... 8W-15-7
BR/BE8W-15 GROUND DISTRIBUTION 8W - 15 - 1