2001 DODGE RAM steering

However, these tests may not prove conclusive in the
diagnosis of this system on models equipped with a
high-line or premium Central Timer Module (CTM).
In order to obtain conclusive testing of the wiper sys-
tem on models with a high-line or premium CTM, the
Chrysler Collision Detection (CCD) data bus network
and all of the electronic modules that provide inputs
to or receive outputs from the wiper system compo-
nents must be checked. The most reliable, efficient,
and accurate means to diagnose the wiper system on
models with a high-line or premium CTM requires
the use of a DRBIIItscan tool. Refer to the appro-
priate diagnostic information. The DRBIIItscan tool
can provide confirmation that the CCD data bus is
functional, that all of the electronic modules are
sending and receiving the proper messages on the
CCD data bus, and that the wiper relay is being sent
the proper hard wired outputs by the CTM for it to
perform its wiper system functions.
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) Check the fused ignition switch output (run-
acc) fuse (Fuse6-25ampere) in the Junction Block
(JB). If OK, go to Step 2. If not OK, repair the
shorted circuit or component as required and replace
the faulty fuse.
(2) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run-acc) fuse (Fuse6-25ampere) in the JB.
If OK, go to Step 3. If not OK, repair the open fused
ignition switch output (run-acc) circuit between the
JB and the ignition switch as required.
(3) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the instrument panel wire harness con-
nector for the multi-function switch from the switch
connector receptacle. Reconnect the battery negative
cable. Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run-acc) circuit cavity of the instrument
panel wire harness connector for the multi-function
switch. If OK, go to Step 4. If not OK, repair theopen fused ignition switch output circuit between the
multi-function switch and the JB as required.
(4) If the problem being diagnosed involves only
the intermittent wipe feature, go to Step 5. If the
problem being diagnosed involves all wiper modes, or
only the Low and/or High speed modes, go to Step 7.
(5) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the instrument panel wire harness con-
nector (Connector C1) for the Central Timer Module
(CTM) from the CTM connector receptacle. Check for
continuity between the wiper switch mode sense cir-
cuit cavities of the instrument panel wire harness
connector for the multi-function switch and the
instrument panel wire harness connector (Connector
C1) for the CTM. There should be continuity. If OK,
go to Step 6. If not OK, repair the open wiper switch
mode sense circuit between the multi-function switch
and the CTM as required.
(6) Check for continuity between the wiper switch
mode signal circuit cavities of the instrument panel
wire harness connector for the multi-function switch
and the instrument panel wire harness connector
(Connector C1) for the CTM. There should be conti-
nuity. If OK, proceed to the diagnosis for the wiper
relay. (Refer to 8 - ELECTRICAL/WIPERS/WASH-
ERS/WIPER RELAY - DIAGNOSIS AND TESTING).
If not OK, repair the open wiper switch mode signal
circuit between the multi-function switch and the
CTM as required.
(7) Check for continuity between the two wiper
switch low speed output circuit cavities of the instru-
ment panel wire harness connector for the multi-
function switch. There should be continuity. If OK, go
to Step 8. If not OK, repair the open wiper switch
low speed output circuit between the two cavities of
the instrument panel wire harness connector for the
multi-function switch as required.
(8) Test the multi-function switch continuity.
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/MULTI-FUNCTION SWITCH - DIAG-
NOSIS AND TESTING). If the multi-function switch
tests OK, reconnect the instrument panel wire har-
ness connector for the multi-function switch to the
switch connector receptacle and go to Step 9. If not
OK, replace the faulty multi-function switch and test
the wiper system operation again. If still not OK, go
to Step 9.
(9) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Measure the resistance between the headlamp and
dash wire harness ground wire for the wiper motor
and a good ground. The meter should read zero
ohms. If OK, go to Step 10. If not OK, repair the
open ground circuit to ground (G100) as required.
8R - 4 WIPERS/WASHERSBR/BE
WIPERS/WASHERS (Continued)

(10) Disconnect the headlamp and dash wire har-
ness connector for the wiper module from the wiper
motor pigtail wire connector. Reconnect the battery
negative cable. Turn the ignition switch to the On
position. Place the multi-function switch in the posi-
tions indicated in the tests below, and check for bat-
tery voltage at the appropriate cavity of the
headlamp and dash wire harness connector for the
wiper motor.
(a) Check for battery voltage at the fused igni-
tion switch output (run-acc) circuit cavity of the
headlamp and dash wire harness connector for the
wiper module with the multi-function switch in
any position. If OK, go to Step b. If not OK, repair
the open fused ignition switch output (run-acc) cir-
cuit between the wiper module and the JB as
required.
(b) Check for battery voltage at the wiper switch
low speed output circuit cavity of the headlamp
and dash wire harness connector for the wiper
module with the multi-function switch in the Lo
position. If OK, go to Step c. If not OK, repair the
open wiper switch low speed output circuit between
the wiper module and the multi-function switch as
required.
(c) Check for battery voltage at the wiper switch
high speed output circuit cavity of the headlamp
and dash wire harness connector for the wiper
module with the multi-function switch in the Hi
position. If OK, go to Step d. If not OK, repair the
open wiper switch high speed output circuit
between the wiper module and the multi-function
switch as required.
(d) Check for battery voltage at the wiper park
switch sense circuit cavity of the headlamp and
dash wire harness connector for the wiper module
with the multi-function switch in the Lo or Hi posi-
tion, then move the switch to the Off position. The
meter should switch between battery voltage and
zero volts while the wipers are cycling. The meter
should read battery voltage when the switch is
first moved to the Off position until the wipers
park, and then read a steady zero volts. If not OK,
replace the faulty wiper module.
WASHER SYSTEM
The diagnosis found here addresses an electrically
inoperative washer system. If the washer pump/mo-
tor operates, but no washer fluid is emitted from the
washer nozzles, be certain to check the fluid level in
the reservoir. Also inspect the washer system compo-
nents as required. (Refer to 8 - ELECTRICAL/WIP-
ERS/WASHERS - INSPECTION). Refer to the
appropriate wiring information. The wiring informa-
tion includes wiring diagrams, proper wire and con-
nector repair procedures, details of wire harnessrouting and retention, connector pin-out information
and location views for the various wire harness con-
nectors, splices and grounds.
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) Turn the ignition switch to the On position.
Turn the multi-function switch wiper control knob to
the Lo or Hi speed position. Check whether the wip-
ers operate. If OK, go to Step 2. If not OK, repair the
wiper system as required before proceeding with the
following tests. Refer to WIPER SYSTEM .
(2) Turn the multi-function switch wiper control
knob to the Off position. Depress the washer button.
The washer pump should operate and the wipers
should operate for as long as the washer button is
depressed. The wipers should continue to operate for
about three sweep cycles after the button is released
before they park. If the wipers are OK, but the wash-
ers are not, go to Step 3. If the washers are OK, but
the wipers are not, go to Step 5.
(3) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the headlamp and dash wire harness con-
nector for the washer pump/motor from the motor
connector receptacle. Measure the resistance between
the ground circuit cavity of the headlamp and dash
wire harness connector for the washer pump/motor
and a good ground. The meter should read zero
ohms. If OK, go to Step 4. If not OK, repair the open
ground circuit to ground (G100) as required.
(4) Reconnect the battery negative cable. Turn the
ignition switch to the On position. With the washer
button depressed, check for battery voltage at the
washer switch output circuit cavity of the headlamp
and dash wire harness connector for the washer
pump/motor. If OK, replace the faulty washer pump/
motor. If not OK, repair the open washer switch out-
put circuit between the washer pump/motor and the
multi-function switch as required.
(5) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the instrument panel wire harness con-
nector (Connector C1) for the Central Timer Module
BR/BEWIPERS/WASHERS 8R - 5
WIPERS/WASHERS (Continued)

be routed away from hot, sharp, or moving parts;
and, sharp bends that might pinch the hose must be
avoided.
WASHER NOZZLE
DESCRIPTION
The two washer nozzles have integral snap fea-
tures that secure them in dedicated holes in the cowl
plenum cover/grille panel located near the base of the
windshield. The domed upper surface of the washer
nozzle is visible on the top of the plenum cover/grille
panel, and the nozzle orifice is oriented towards the
windshield glass. The washer plumbing fittings for
the washer nozzles are concealed beneath the cowl
plenum cover/grille panel. These fluidic washer noz-
zles are constructed of molded plastic. The cowl ple-
num cover/grille panel must be removed from the
vehicle to access the nozzles for service. The washer
nozzles cannot be adjusted or repaired and, if faulty
or damaged, they must be replaced.
OPERATION
The two washer nozzles are designed to dispense
washer fluid into the wiper pattern area on the out-
side of the windshield glass. Pressurized washer fluid
is fed to each nozzle from the washer reservoir by the
washer pump/motor through rubber hoses, which are
attached to a barbed nipple on each washer nozzle
below the cowl plenum cover/grille panel. The washer
nozzles incorporate a fluidic design, which causes the
nozzle to emit the pressurized washer fluid as an
oscillating stream to more effectively cover a larger
area of the glass area to be cleaned.
REMOVAL
(1) Remove the cowl plenum cover/grille panel
from the cowl top. (Refer to 23 - BODY/EXTERIOR/
COWL GRILLE - REMOVAL).
(2) From the underside of the cowl plenum cover/
grille panel, disconnect the washer hose from the
nozzle fitting.
(3) From the underside of the cowl plenum cover/
grille panel, compress the snap features of the
washer nozzle and push the nozzle out through the
top of the panel.
INSTALLATION
(1) From the top of the cowl plenum cover/grille
panel, insert the barbed nipple of the washer nozzle
through the nozzle mounting hole.
(2) With the orifice of the washer nozzle oriented
toward the windshield, use hand pressure to push
the nozzle into the mounting hole until the snap fea-tures of the nozzle are fully engaged with the under-
side of the cowl plenum cover/grille panel.
(3) From the underside of the cowl plenum cover/
grille panel, reconnect the washer hose to the washer
nozzle fitting.
(4) Reinstall the cowl plenum cover/grille panel
onto the cowl top. (Refer to 23 - BODY/EXTERIOR/
COWL GRILLE - INSTALLATION).
WASHER PUMP/MOTOR
DESCRIPTION
The washer pump/motor unit is located on the rear
of the washer reservoir, near the bottom in the left
front corner of the engine compartment. A small per-
manently lubricated and sealed electric motor is cou-
pled to the rotor-type washer pump. A seal flange
with a large barbed inlet nipple on the pump housing
passes through a rubber grommet seal installed in
the dedicated mounting hole near the bottom of the
washer reservoir. A smaller barbed outlet nipple on
the pump housing connects the unit to the washer
hose. The washer pump/motor unit is retained on the
reservoir by the interference fit between the barbed
pump inlet nipple and the grommet seal, which is a
light press fit. An integral electrical connector recep-
tacle is located on the motor housing. The washer
pump/motor unit cannot be repaired. If faulty or
damaged, the entire washer pump/motor unit must
be replaced.
OPERATION
The washer pump/motor unit is connected to the
vehicle electrical system through a single take out
and two-cavity connector of the headlamp and dash
wire harness. The washer pump/motor is grounded at
all times through a take out of the headlamp and
dash wire harness with a single eyelet terminal con-
nector that is secured by a nut to a ground stud
located on the forward extension of the left front
fender wheel housing in the engine compartment.
The washer pump/motor receives battery current on
a fused ignition switch output (run-acc) circuit
through the closed contacts of the momentary washer
switch within the multi-function switch only when
the washer button on the end of the switch control
stalk is depressed towards the steering column.
Washer fluid is gravity-fed from the washer reservoir
to the inlet side of the washer pump. When the pump
motor is energized, the rotor-type pump pressurizes
the washer fluid and forces it through the pump out-
let nipple, the washer plumbing, and the washer noz-
zles onto the windshield glass.
BR/BEWIPERS/WASHERS 8R - 9
WASHER HOSES/TUBES (Continued)

WIPER MODULE
DESCRIPTION
The wiper module is secured with screws to the
cowl plenum panel and concealed within the cowl
plenum area beneath the cowl plenum cover/grille
panel. The ends of the wiper pivot shafts that pro-
trude through dedicated openings in the cowl plenum
cover/grille panel to drive the wiper arms and blades
are the only visible components of the wiper module.
The wiper module consists of the following major
components:
²Bracket- The wiper module bracket consists of
a long tubular steel main member that has a
stamped pivot bracket formation near each end
where the two wiper pivots are secured. A stamped
steel mounting plate for the wiper motor is secured
with welds near the center of the main member.
²Crank Arm- The wiper motor crank arm is a
stamped steel unit that has a slotted hole on the
driven end that is secured to the wiper motor output
shaft with a nut, and has a ball stud secured to the
drive end.
²Linkage- The two wiper linkage members are
each constructed of stamped steel. A driver side drive
link with a plastic socket-type bushing in the left
end, and a plastic sleeve-type bushing in the right
end. Socket bushing is snap-fit over the pivot ball
stud on the left pivot, while the sleeve bushing is fit
over the longer wiper motor crank arm pivot stud.
The passenger side drive link has a plastic socket-
type bushing on each end. One end of this drive link
is snap-fit over the pivot ball stud on the right pivot,
while the other end is snap-fit over the exposed end
of the longer ball stud on the wiper motor crank arm.
²Motor- The wiper motor is secured with three
screws to the motor mounting plate near the center
of the wiper module bracket. The wiper motor output
shaft passes through a hole in the module bracket,
where a nut secures the wiper motor crank arm to
the motor output shaft. The two-speed permanent
magnet wiper motor features an integral transmis-
sion, an internal park switch, and an internal Posi-
tive Temperature Coefficient (PTC) circuit breaker.
²Pivots- The two wiper pivots are secured to the
ends of the wiper module bracket. The crank arms
that extend from the bottom of the pivot shafts each
have a ball stud on their end. The upper end of each
pivot shaft where the wiper arms will be fastened
each has an externally serrated drum secured to it.
The wiper module cannot be adjusted or repaired.
If any component of the module is faulty or damaged,
the entire wiper module unit must be replaced.
OPERATION
The wiper module operation is controlled by the
vehicle operator through battery current inputs
received by the wiper motor from the multi-function
switch on the steering column. The wiper motor
speed is controlled by current flow to either the low
speed or the high speed set of brushes. The park
switch is a single pole, single throw, momentary
switch within the wiper motor that is mechanically
actuated by the wiper motor transmission compo-
nents. The park switch alternately closes the wiper
park switch sense circuit to ground or to battery cur-
rent, depending upon the position of the wipers on
the glass. This feature allows the motor to complete
its current wipe cycle after the wiper system has
been turned Off, and to park the wiper blades in the
lowest portion of the wipe pattern. The automatic
resetting circuit breaker protects the motor from
overloads. The wiper motor crank arm, the two wiper
linkage members, and the two wiper pivots mechan-
ically convert the rotary output of the wiper motor to
the back and forth wiping motion of the wiper arms
and blades on the glass.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the wiper arms from the wiper pivots.
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER ARMS - REMOVAL).
(3) Remove the cowl plenum cover/grille panel
from the cowl plenum. (Refer to 23 - BODY/EXTERI-
OR/COWL GRILLE - REMOVAL).
(4) Remove the four screws that secure the wiper
module bracket to the cowl plenum panel and the
dash panel (Fig. 8).
(5) Reach into the cowl plenum to move the wiper
module far enough to access the wiper module elec-
trical connections (Fig. 9).
Fig. 8 Wiper Module Remove/Install
1 - WIPER MODULE MOUNTING SCREWS
8R - 14 WIPERS/WASHERSBR/BE

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
connected to battery current from a fuse in the Junc-
tion Block (JB) through a fused ignition switch out-
put (run-acc) circuit.
²The coil ground terminal (85) is connected to the
relay control output of the CTM through the wiper
motor relay control circuit. The CTM controls the
ground path for this circuit internally to energize or
de-energize the wiper relay based upon its program-
ming and inputs from the wiper and washer control
circuitry of the multi-function switch and from the
wiper motor park switch.
²The coil battery terminal (86) is connected to
battery current from a fuse in the Junction Block
(JB) through a fused ignition switch output (run-acc)
circuit whenever the ignition switch is in the On or
Accessory positions.
²The normally open terminal (87) is connected to
battery current from a fuse in the Junction Block
(JB) through a fused ignition switch output (run-acc)
circuit whenever the wiper relay control coil is ener-
gized by the CTM. This circuit provides fused igni-
tion switch output (run-acc) current to the wiper
motor low speed brush only when the wiper relay
control coil is energized.
²The normally closed terminal (87A) is connected
to the output of the wiper motor park switch through
the wiper motor park switch sense circuit. This cir-
cuit provides battery current (wipers are not parked)
or ground (wipers are parked) to the wiper motor low
speed brush whenever the wiper relay control coil is
de-energized and the Off position of the wiper control
of the multi-function switch is selected.
The wiper relay can be diagnosed using conven-
tional diagnostic tools and methods.
DIAGNOSIS AND TESTING - WIPER RELAY
The wiper relay (or intermittent wipe relay) (Fig.
10) is located in the Power Distribution Center (PDC)
near the battery on the left side of the engine com-
partment. See the fuse and relay layout label affixed
to the inside surface of the PDC cover for wiper relay
identification and location. Refer to the appropriatewiring information. The wiring information includes
wiring diagrams, proper wire and connector repair
procedures, details of wire harness routing and
retention, connector pin-out information and location
views for the various wire harness connectors, splices
and grounds.
(1) Remove the wiper relay from the PDC. (Refer
to 8 - ELECTRICAL/WIPERS/WASHERS/WIPER
RELAY - REMOVAL).
(2) A relay in the de-energized position should
have continuity between terminals 87A and 30, and
no continuity between terminals 87 and 30. If OK, go
to Step 3. If not OK, replace the faulty relay.
(3) Resistance between terminals 85 and 86 (elec-
tromagnet) should be 75   5 ohms. If OK, go to Step
4. If not OK, replace the faulty relay.
(4) Connect a battery to terminals 85 and 86.
There should now be continuity between terminals
30 and 87, and no continuity between terminals 87A
and 30. If OK, test the relay input and output cir-
cuits. Refer to RELAY CIRCUIT TEST . If not OK,
replace the faulty relay.
RELAY CIRCUIT TEST
(1) The relay common feed terminal cavity (30) is
connected to the multi-function switch. There should
be continuity between the receptacle for terminal 30
of the wiper relay in the PDC and both driver low
speed wiper motor driver circuit cavities of the
instrument panel wire harness connector for the
multi-function switch at all times. If OK, go to Step
2. If not OK, repair the open driver low speed wiper
motor driver circuit(s) between the PDC and the
multi-function switch as required.
(2) The relay normally closed terminal (87A) is
connected to the wiper motor park switch through
the wiper motor park switch sense circuit. There
Fig. 10 Wiper Relay
30 - COMMON FEED
85 - COIL GROUND
86 - COIL BATTERY
87 - NORMALLY OPEN
87A - NORMALLY CLOSED
8R - 16 WIPERS/WASHERSBR/BE
WIPER MOTOR RELAY (Continued)

Connector Name/Number Color Location Fig.
C203 Left Cowl 23,25
C204 Left Cowl 25
C205 Instrument Panel Center Support N/S
C206 Left Cowl 23,25
C237 Bottom Right of Instrument Panel 23,26
C303 BK Below Driver's Seat 18
C308 Center Rear of Headliner N/S
C329 BK Below Right Tail Lamp 21
C333 BK Below Left Tail Lamp 21
C342 BK Left Rear of Frame 21
C343 BK Left Rear of Frame 21
C345 Right Door N/S
C346 Right Door N/S
C347 Left Door 20
C348 Left Door 20
C352 BK Left A-Pillar 20
C353 BK Right A-Pillar 20
C358 NAT Left Side Instrument Panel 20,23,27
C359 Heated Seat To Body Wiring 18
C360 Below Driver's Seat 18
C361 Left Rear Speaker Wiring N/S
C364 Right Rear Speaker Wiring N/S
C365 Under Passenger Power Seat N/S
Camshaft Position Sensor (V6, V8) Near of Distributor 3
Camshaft Position Sensor (V10) Front of Engine 6
Camshaft Position Sensor (Diesel) Left Front of Engine 10
Cargo Lamp No. 1 BK Rear of Lamp N/S
Cargo Lamp No. 2 BK Rear of Lamp N/S
Center High Mounted Stop Lamp No. 1 BK Rear of Cab 18
Center High Mounted Stop Lamp No. 2 BK Rear of Cab 18
Center Identification Lamp BK Behind Front of Headliner 20
Central Timer Module C1 Left Side Under Instrument Panel 23,24
Central Timer Module C2 Left Side Under Instrument Panel 23,24
Cigar Lighter NAT Center of Instrument Panel 25
Clockspring No.1 Steering Column 24
Clockspring No.2 Steering Column 24
Clockspring No.3 Steering Column 24
Clutch Pedal Position Switch BK Top of Clutch Pedal 27
Controller Anti-Lock Brake C1 Left Fender Side Shield 14
Controller Anti-Lock Brake C2 Left Fender Side Shield 14
Crankshaft Position Sensor (V6, V8) Rear of Engine Block 3
Crankshaft Position Sensor (V10 Right Side of Engine Block 6
8W - 90 - 2 8W-90 CONNECTOR/GROUND LOCATIONSBR/BE
CONNECTOR/GROUND LOCATIONS (Continued)

Connector Name/Number Color Location Fig.
Cummins Bus (-) Left Front of Engine 10
Cup Holder Lamp Center of Instrument Panel 23,26
Data Link Connector BK Left Bottom of Instrument Panel 23,24
Day/Night Mirror BK Day/Night Mirror N/S
Daytime Running Lamp Module BK Left Fender Side Shield 14
Dome Lamp Rear of Cab 18
Driver Airbag BK Steering Wheel N/S
Driver Door Arm/Disarm Switch BK In Door 19
Driver Door Jamb Switch NAT Door Jamb 19
Driver Door Lock Motor BK In Door 19
Driver Door Window/Lock Switch BL In Door 19
Driver Heated Seat Module 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 Motor BK Under Seat N/S
Driver Power Seat Horizontal Motor BK Under Seat N/S
Driver Power Seat Rear Vertical Motor Under Seat N/S
Driver Power Seat Switch At Seat N/S
Driver Power Window Motor In Door 19
Duty Cycle EVAP/Purge Solenoid BK Right Fender Side Shield 17
Electric Brake Provision Bottom Left of Instrument Panel N/S
Engine Control Module (Diesel) Left Side Engine 12
Engine Coolant Temperature Sensor (Diesel) BK Left Front of Cylinder Head
(Diesel)10
Engine Coolant Temperature Sensor (Gas) BK On Thermostat Housing 3,6
Engine Oil Pressure Sensor (V6, V8) BK Near Distributor 3
Engine Oil Pressure Sensor (V10) Near Oil Filter 6
Engine Oil Pressure Sensor (Diesel) Left Side of Engine 12
Fuel Heater (Diesel) Left Side of Engine 10
Fuel Injection Pump (Diesel) Left Side of Engine, Below ECM 10
Fuel Injector No.1 BK At Fuel Injector 4,5
Fuel Injector No. 2 BK At Fuel Injector 4,5,6
Fuel Injector No. 3 BK At Fuel Injector 4,5,6
Fuel Injector No. 4 BK At Fuel Injector 4,5,6
Fuel Injector No. 5 BK At Fuel Injector 4,5,6
Fuel Injector No. 6 BK At Fuel Injector 4,5,6
Fuel Injector No. 7 BK At Fuel Injector 4,6
Fuel Injector No. 8 BK At Fuel Injector 4,6
Fuel Injector No. 9 BK At Fuel Injector 6
Fuel Injector No. 10 BK At Fuel Injector 6
Fuel Pump Module LTGY At Frame Rail 22
Fuel Transfer Pump (Diesel) Left Rear of Engine Bottom of
Pump10
BR/BE8W-90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 3
CONNECTOR/GROUND LOCATIONS (Continued)

Connector Name/Number Color Location Fig.
G100 Left Fender Side Shield 16
G101 Left Fender Side Shield 16
G102 Left Fender Side Shield (RWAL
Ground)N/S
G103 Near T/O for Wiper Motor 14
G105 Front of Engine (Engine Ground) 4,5,6,9
G107 (Diesel) Left Rear of Engine 10
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
G200 Left Cowl 24
G201 Instrument Panel Right Center
Support23,25
G300 Left Lower Cowl 20
G301 Below Left Rear Speaker 18
G302 At Overhead Console 20
Generator BK Front of Engine 7,8
Glove Box Lamp At Glove Box 23
Headlamp Switch C1 BK Left Side of Instrument Panel 23,26
Headlamp Switch C2 Left Side of Instrument Panel 23,26
Heated Mirror Switch Center of Instrument Panel 25
High Note Horn BK Front Bumper Right Support 17
Idle Air Control Motor BK On Throttle Body 9
Ignition Coil GY Right Front of Engine 4,5,9
Ignition Coil 4 Pack BK Right Side of Engine 9
Ignition Coil 6 Pack BK Right Side of Engine 9
Ignition Switch C1 Steering Column 24
Ignition Switch C2 Steering Column 24
Instrument Cluster C1 Rear of Instrument Cluster 23
Instrument Cluster C2 Rear of Instrument Cluster 23
Intake Air Heater Relay Left Fender Side Shield 16
Intake Air Temperature Sensor (Diesel) Left Rear of Engine 10
Intake Air Temperature Sensor (Gas) GY On Intake Manifold 4,5,6
Joint Connector No. 1 In Power Distribution Center N/S
Joint Connector No. 2 In Power Distribution Center N/S
Joint Connector No. 3 Front Bumper Right support 17
Joint Connector No. 4 Left Front Engine Compartment 16
Joint Connector No. 5 NAT Left Side of Instrument Panel 24
Joint Connector No. 6 NAT Left Side of Instrument Pane 24
8W - 90 - 4 8W-90 CONNECTOR/GROUND LOCATIONSBR/BE
CONNECTOR/GROUND LOCATIONS (Continued)