steering MERCEDES-BENZ SPRINTER 2006 Service Manual

RAIN SENSOR CONTROL MOD-
ULE
DESCRIPTION
The Rain Sensor Control Module (RSCM) is the
primary component of the automatic wiper system
(Fig. 11). The RSCM is secured with two screws and
nuts to a bracket located under the instrument panel
above the throttle pedal within the passenger com-
partment. The rectangular molded plastic housing of
the RSCM has an integral mounting tab on each side
and an integral connector receptacle on one end,
which contains the module terminal pins. These ter-
minal pins connect the RSCM to the vehicle electrical
system through a dedicated take out and connector of
the instrument panel wiring. Concealed and pro-
tected within the RSCM housing is the electronic cir-
cuitry of the module.
The RSCM cannot be repaired and, if damaged or
faulty, the entire module must be replaced.
OPERATION
The microprocessor-based Rain Sensor Control
Module (RSCM) is only used in vehicles equipped
with an optional automatic wiper system. The RSCM
monitors inputs from the ignition switch, the wiper
and washer switch circuitry of the multi-function
switch on the steering column, the park switch
within the wiper motor, and the rain sensor on the
inside of the windshield glass. Based upon these
inputs the RSCM sends the proper control outputs to
the wiper motor and the washer pump motor to pro-
vide all of the requested wiper and washer system
functions.The RSCM operates on battery current received
from a fuse in the fuse block on a fused ignition
switch output (run-start) circuit so that the RSCM
will operate whenever the ignition switch is in the
On or Start positions. The RSCM receives ground at
all times through its connection to the instrument
panel wire harness. It is important to note that the
default condition for the wiper system is automatic
wipers Off; therefore, if no input is received from the
rain sensor by the RSCM, the automatic wipers will
be disabled and the RSCM will default the wiper and
washer system to normal manual operation for con-
tinuous low or high speed wiper or washer mode.
The hard wired RSCM circuits may be diagnosed
using conventional diagnostic tools and methods.
However, conventional diagnostic methods may not
prove conclusive in the diagnosis of the internal cir-
cuitry of the RSCM. Refer to the appropriate wiring
information.
REMOVAL
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Disconnect and isolate the battery negative
cable.
(2) Locate the rain sensor control module on a
bracket under the instrument panel above the throt-
tle pedal (Fig. 12).
Fig. 11 Rain Sensor Control Module
1 - RAIN SENSOR CONTROL MODULE
2 - CONNECTOR RECEPTACLE
3 - MOUNTING TAB (2)
VAWIPERS/WASHERS 8R - 15

(3) Cut the tie wrap on the control module (Fig.
13).
(4) Unlock and disconnect the wire harness con-
nector from the module connector receptacle.
(5) Remove the two screws and nuts that secure
the module to the bracket.
(6) Remove the module from the bracket.
INSTALLATION
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Position the rain sensor control module to the
bracket under the instrument panel above the throt-
tle pedal (Fig. 12).
(2) Install and tighten the two screws and nuts
that secure the module to the bracket (Fig. 13).
(3) Reconnect and lock the wire harness connector
to the module connector receptacle.
(4) Install a new tie wrap to secure the wire har-
ness to the control module.
(5) Reconnect the battery negative cable.
WASHER FLUID LEVEL
SWITCH
DESCRIPTION
The optional washer fluid level switch is a single
pole, single throw switch that is integral to a unique
version of the washer pump/motor unit, located rear-
ward facing side of the washer reservoir, which is
located in a dedicated hole on the top of the sump
area near the back of the windshield washer reser-
voir on the right front fender wheel house in the
engine compartment. Only a molded plastic nipple
with a clear vent tube are visible near the top of the
washer pump/motor unit that is equipped with the
optional fluid level switch when it is installed in the
reservoir. The vent tube is routed to and retained in
an integral clip located behind the reservoir filler cap
near the top of the reservoir. This version of the
washer pump/motor unit also has a third terminal
pin in its integral connector receptacle. The washer
fluid level switch cannot be adjusted or repaired. If
faulty or damaged, the entire washer pump/motor
unit must be replaced.
OPERATION
The washer fluid level switch monitors the level of
the washer fluid in the washer reservoir. When the
fluid level in the washer reservoir is at or above the
predetermined minimum, the switch contacts are
open. When the fluid level in the washer reservoir
Fig. 12 Rain Sensor Control Module Location
1 - INSTRUMENT PANEL
2 - RAIN SENSOR CONTROL MODULE
3 - THROTTLE PEDAL
Fig. 13 Rain Sensor Control Module Remove/Install
1 - SCREW (2)
2 - CONNECTOR
3 - NUT (2)
4 - TIE WRAP
5 - MODULE
8R - 16 WIPERS/WASHERSVA

OPERATION
The wiper motor operation is controlled by the
vehicle operator through battery current inputs
received by the wiper motor from the wiper switch
circuitry of the multi-function switch on the top of
the steering column, and from the wiper relay on the
fuse block underneath 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 automatic resetting circuit breaker protects the
motor from overloads.
The park switch consists of a contact disc and
three contacts. The contact disc is mechanically fas-
tened to and rotated with a gear in the wiper motor
transmission. Two input contacts alternately close
the wiper park switch sense output circuit contact to
ground or to battery current, depending upon the
position of the wipers on the glass. This feature
allows the intermittent wipe logic circuit to monitor
the position and the cycles of the wiper motor to pro-
vide the intermittent wipe and wipe-after-wash
modes, as well as allowing the motor to complete its
current wipe cycle after the wiper system has been
turned Off and park the wiper blades in the lowest
portion of the wipe pattern.
The wiper motor may be diagnosed using conven-
tional diagnostic tools and methods.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the vehicle wire harness connector
for the wiper motor from the motor pigtail wire con-
nector (Fig. 32).
8R - 32 WIPERS/WASHERSVA

WIPER RELAY
DESCRIPTION
A wiper relay is standard equipment on all models.
The wiper relay (or intermittent wipe relay) is
located in a dedicated receptacle on the bottom left of
the fuse block on the underside of the steering col-
umn (Fig. 33). The wiper relay is a conventional
International Standards Organization (ISO) micro
relay. Relays conforming to the ISO specifications
have common physical dimensions, current capaci-
ties, terminal 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 the
instrument panel wire harness connector by five
male spade-type terminals that extend from the bot-
tom of the relay base. The ISO designation for each
terminal is molded into the base adjacent to the ter-
minal. The ISO terminal designations are as follows:
²30 (Common Feed)- This terminal is con-
nected to the movable contact point of the relay.
²85 (Coil Ground)- This terminal is connected
to the ground feed side of the relay control coil.
²86 (Coil Battery)- This terminal is connected
to the battery feed side of the relay control coil.
²87 (Normally Open)- This terminal is con-
nected to the normally open fixed contact point of the
relay.
²87A (Normally Closed)- This terminal is con-
nected to the normally closed fixed contact point of
the relay.
The wiper relay cannot be adjusted or repaired. If
the relay is damaged or faulty, it must be replaced.
OPERATION
The wiper relay (or intermittent wipe relay) is an
electromechanical switch that uses a low current
input from the intermittent wipe logic circuitry
within the fuse block underneath the steering column
to control a high current output to the low speed
brush of the wiper motor. The movable common feed
contact point is held against the fixed normally
closed contact point by spring pressure. When the
relay coil is energized, an electromagnetic field is
produced by the coil windings. This electromagnetic
field draws the movable relay contact point away
from the fixed 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 parallel with the
relay coil in the relay, and helps to dissipate voltage
spikes and electromagnetic interference that can be
generated as the electromagnetic field of the relay
coil collapses.
The wiper relay terminals are connected to the
vehicle electrical system through a connector recepta-
cle in the fuse block. The inputs and outputs of the
wiper relay include:
²The common feed terminal (30) provides an out-
put 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-en-
ergized, the common feed terminal is connected to
the input of the relay normally closed terminal (87).
When the wiper relay is energized, the common feed
terminal is connected to the input of the relay nor-
mally open terminal (87A).
²The coil ground terminal (85) is connected to
battery current through a fused ignition switch out-
put circuit whenever the ignition switch is in the On
position.
²The coil battery terminal (86) is connected to the
relay control output of the wiper, turn signals and
engine start control module within the fuse block
through the wiper relay control circuit. This elec-
tronic circuitry controls the ground path for this cir-
cuit internally to energize or de-energize the wiper
relay control coil based upon its programming and
inputs from the wiper and washer control circuitry of
the multi-function switch, the wiper motor park
switch, and the ignition switch.
²The normally open terminal (87) is connected to
the output of the wiper motor park switch through
the wiper motor park switch sense circuit. This cir-
cuit can carry either battery current (wipers are not
in park position) or ground (wipers are in park posi-
tion), depending upon the status of the wiper park
switch.
Fig. 33 Wiper Relay
1 - HOUSING
2 - TERMINAL (5)
3 - BASE
8R - 34 WIPERS/WASHERSVA

²The normally closed terminal (87A) is connected
to battery current through a fused ignition switch
output circuit whenever the ignition switch is in the
On position.
The wiper relay can be diagnosed using conven-
tional diagnostic tools and methods.
REMOVAL
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the fuse access panel from the steering
column opening cover below the steering column on
the instrument panel.
(3) Reach through and below the outboard side of
the fuse access opening to access the wiper relay
(Fig. 34).
(4) Remove the wiper relay by grasping it firmly,
releasing the latches and pulling it straight down
from the receptacle on the bottom of the fuse block.
INSTALLATION
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Position the wiper relay to the receptacle on
the bottom of the fuse block (Fig. 34).
(2) Align the wiper relay terminals with the termi-
nal cavities in the fuse block receptacle.
(3) Push firmly and evenly on the top of the wiper
relay until the terminals are fully seated in the ter-
minal cavities in the receptacle of the fuse block and
both latches are fully engaged.
(4) Reinstall the fuse access panel onto the steer-
ing column opening cover below the steering column
on the instrument panel.
(5) Reconnect the battery negative cable.
Fig. 34 Wiper Relay Remove/Install
1 - FUSE BLOCK
2 - LOWER INSTRUMENT PANEL
3 - STEERING COLUMN COVER
4 - LATCH (2)
5 - WIPER RELAY
VAWIPERS/WASHERS 8R - 35

Component Page
Ignition Lock Switch................... 8W-40
Ignition Switch....................... 8W-10
Instrument Cluster.................... 8W-40
Instrument Panel Socket................ 8W-41
Intake Air Pressure Sensor.............. 8W-30
Intake Air Temperature Sensor........... 8W-30
Interference Suppression Capacitor........ 8W-42
Interior Lamps....................... 8W-44
Interior Light Switches................. 8W-44
Interior Lighting Connector.............. 8W-44
Intrusion Sensors..................... 8W-39
Kickdown Switch...................... 8W-30
Lamp Relays......................... 8W-50
Lateral Acceleration Sensor.............. 8W-35
License Plate Lamps................... 8W-51
Lockeres............................ 8W-31
Low Fuel Pressure Sensor............... 8W-30
Low Pressure Switch................... 8W-42
Map/Reading Lamp Switch.............. 8W-44
Marker Lamp Connector................ 8W-51
Marker Lamps..................... 8W-50, 51
Mass Air Flow Sensor.................. 8W-30
Master Door Lock Switch............... 8W-61
Metering Pump....................... 8W-42
Microphone Connector.................. 8W-55
Multi-Function Switch......... 8W-50, 52, 53, 54
Optional Equipment Relay.............. 8W-11
Oxygen Sensor....................... 8W-30
Panic Alarm Switch.................... 8W-39
Parking Brake Switch.................. 8W-35
Power Distribution Center.............. 8W-10
Power Mirror Motors................... 8W-62
Power Mirror Switch................... 8W-62
Power Window Motors.................. 8W-60
Power Window Switches................ 8W-60
Radio............................... 8W-47
Radio Antenna........................ 8W-47
Radio/Cellular Antenna................. 8W-55
Rain Sensor.......................... 8W-53
Rain Sensor Control Module............. 8W-53
Reading Lamp Connector............... 8W-44
Rear Window Defogger Relay............ 8W-48
Recirculated Air Solenoid Valve........... 8W-42
Refrigerant Pressure Sensor............. 8W-42
Relay Block.......................... 8W-11
Rollover Switch....................... 8W-42
Rollover Switch Assembly............... 8W-42
Roof A/C Blower Fuses................. 8W-42
Roof A/C Blower Stage Relays............ 8W-42
Roof A/C Blowers...................... 8W-42
Roof A/C Compressor Fuse.............. 8W-42Component Page
Roof A/C Control Module................ 8W-42
Roof A/C Fan Fuse.................... 8W-42
Roof A/C Switch....................... 8W-42
Roof A/C Temperature Setting Control..... 8W-42
Roof Fan Motor....................... 8W-42
Roof Fan Switch...................... 8W-42
Roof Thermotronic Control Module........ 8W-42
SKREEM Antenna.................... 8W-39
SKREEM Transponder................. 8W-39
Seat Belt Switch...................... 8W-43
Seat Belt Tensioners................... 8W-43
Security System Module................ 8W-39
Sentry Key Remote Entry Module......... 8W-39
Shifter Assembly...................... 8W-31
Siren............................... 8W-41
Speakers............................ 8W-47
Speed Control Switch.................. 8W-33
Splices.............................. 8W-70
Starter Motor........................ 8W-21
Starter Motor Relay................... 8W-21
Steering Angle Sensor.................. 8W-35
TCS Switch.......................... 8W-35
Tail Lamp Assemblies.................. 8W-51
Temperature Sensor................... 8W-42
Thermotronic Diode.................... 8W-42
Time Delay Relay..................... 8W-44
Towing/Intrusion Sensor On/Off Switch..... 8W-39
Trailer Tow Connector.................. 8W-54
Trailer Tow Control Module.............. 8W-54
Transmission Control Module............ 8W-31
Transmission Relay.................... 8W-31
Turn Signal Relay..................... 8W-52
Turn Signal Switch.................... 8W-50
Turn Signal/Anti-Theft Alarm Relays...... 8W-39
Turn Signals......................... 8W-52
Warm Air Auxiliary Control Module....... 8W-42
Warm Air Auxiliary Heater Assembly...... 8W-42
Washer On/Off Switch.................. 8W-53
Washer Pump Motor-Front.............. 8W-53
Water Cycle Valve..................... 8W-42
Water In Fuel Sensor.................. 8W-30
Wheel Speed Sensors................... 8W-35
Window Defogger Module-Rear........... 8W-48
Window Defogger Switch-Rear........... 8W-48
Window Defoggers..................... 8W-48
Wiper Motor-Front.................... 8W-53
Wiper On/Off Relay.................... 8W-53
Wiper Switch......................... 8W-53
Wiper/Turn Signal/Engine Start Control
Module................... 8W-30, 31, 52, 53
8W - 02 - 2 8W-02 COMPONENT INDEXVA

8W-11 FUSE BLOCK
Component Page
A/C Auxiliary Fan Relay................ 8W-11-19
Additional Heat Exchanger Relay....... 8W-11-24, 34
Additional Heat Exchanger Switch......... 8W-11-27
Ash Receiver Lamp.................... 8W-11-27
Automatic Temperature Control Module . . . 8W-11-16, 27
Battery Relay-Auxiliary................. 8W-11-16
Body Plug Connector.............. 8W-11-28, 38, 39
CTEL Connector................... 8W-11-21, 30
Cabin Heater Module................ 8W-11-21, 34
Central Timer Module............... 8W-11-16, 18
Cigar Lighter Lamp.................... 8W-11-27
Circulation Pump Diode................. 8W-11-34
Controller Antilock Brake............. 8W-11-21, 33
D+ Relay No. 1............... 8W-11-14, 15, 25, 38
D+ Relay No. 2.................. 8W-11-16, 28, 38
Data Link Connector................... 8W-11-18
Daytime Running Lamp Relay-Left Side..... 8W-11-15
Daytime Running Lamp Relay-Right Side.... 8W-11-15
Daytime Running Lamps Relay...... 8W-11-16, 25, 26
Fan Stage 1 Relay..................... 8W-11-24
Fog Lamp Switch................... 8W-11-21, 27
Fuse 1................ 8W-11-13, 14, 19, 20, 25, 26
Fuse 2........... 8W-11-13, 17, 29, 30, 31, 33, 36, 37
Fuse 3................ 8W-11-13, 14, 17, 18, 19, 20,
21, 22, 23, 24, 25, 28
Fuse 4..................... 8W-11-13, 14, 17, 21
Fuse 5................... 8W-11-13, 14, 18, 21, 23
Fuse 6................ 8W-11-13, 18, 24, 29, 33, 36
Fuse 7................ 8W-11-13, 21, 29, 30, 33, 34
Fuse 8................ 8W-11-14, 20, 24, 29, 34, 35
Fuse 9............. 8W-11-13, 14, 15, 16, 21, 25, 38
Fuse 10.................. 8W-11-14, 15, 19, 26, 36
Fuse 11....................... 8W-11-14, 15, 20
Fuse 12....................... 8W-11-28, 29, 33
Fuse 13.................... 8W-11-28, 29, 30, 39
Fuse 14.................... 8W-11-28, 29, 30, 38
Fuse 15....................... 8W-11-29, 31, 32
Fuse 18....................... 8W-11-14, 22, 39
Fuse 19............................ 8W-11-16
Fuse 20......................... 8W-11-29, 31
Fuse Block No. 1................ 8W-11-26, 33, 39
Fuse Block No. 2.............. 8W-11-4, 15, 17, 18,
25, 26, 28, 30, 31, 34, 38, 39
Fuse Block No. 3......... 8W-11-5, 16, 20, 21, 22, 24,
30, 31, 32, 33, 34, 36
Fuse/Relay Block......... 8W-11-2, 19, 20, 21, 23, 33
Fused Ignition Switch Run-Start Relay.... 8W-11-28, 39
G202................. 8W-11-16, 25, 33, 34, 38, 39
Headlamp Adjust Switch................ 8W-11-27
Headlamp Assembly-Left............. 8W-11-15, 25
Headlamp Assembly-Right............ 8W-11-15, 25
Headlamp Switch..................... 8W-11-26
Heated Seat Switch-Driver............ 8W-11-27, 32
Heated Seat Switch-Passenger.......... 8W-11-27, 32
Heater Timer-Auxiliary................. 8W-11-20
High Idle Switch................... 8W-11-27, 33
Component Page
Instrument Cluster................. 8W-11-18, 25
Instrument Panel Socket................ 8W-11-25
Interior Light Switch................ 8W-11-22, 27
Interior Light Switch-Driver.............. 8W-11-22
Interior Light Switch-Passenger........... 8W-11-22
Interior Light Switch-Rear............... 8W-11-22
Interior Lighting Connector.............. 8W-11-22
Intrusion Sensor No. 1.................. 8W-11-37
Intrusion Sensor No. 2.................. 8W-11-37
Intrusion Sensor No. 3.................. 8W-11-37
Lamp Relay-Left................... 8W-11-16, 17
Lamp Relay-Right.................. 8W-11-16, 17
License Plate Lamp No. 1............... 8W-11-25
License Plate Lamp No. 2............... 8W-11-25
Locker Switch No. 1................. 8W-11-27, 33
Locker Switch No. 2................... 8W-11-33
Map/Reading Lamp Switch............ 8W-11-22, 27
Master Door Lock Switch................ 8W-11-27
Multi-Function Switch.................. 8W-11-26
Optional Equipment Relay . . 8W-11-29, 30, 31, 32, 33, 34
Panic Alarm Switch.................... 8W-11-27
Power Distribution Center . . 8W-11-13, 17, 18, 19, 20, 21,
22, 23, 24, 25, 28, 29, 30, 31, 33, 36
Power Mirror Motor-Driver.............. 8W-11-35
Power Mirror Motor-Passenger............ 8W-11-35
Power Mirror Switch................... 8W-11-35
Power Window Switch-Driver............. 8W-11-30
Power Window Switch-Master............ 8W-11-31
Power Window Switch-Passenger.......... 8W-11-31
Radio.............................. 8W-11-27
Rear Window Defogger Relay............. 8W-11-19
Relay Block . . 8W-11-3, 14, 15, 16, 17, 19, 23, 24, 25, 28,
29, 30, 31, 32, 33, 34
Rollover Switch Assembly............. 8W-11-21, 34
Roof A/C Control Module................ 8W-11-20
Roof A/C Switch.................... 8W-11-16, 27
Roof A/C Temperature Setting Control....... 8W-11-27
Roof Fan Switch................... 8W-11-27, 31
Security System Module........... 8W-11-30, 36, 37
Sentry Key Remote Entry Module.......... 8W-11-23
Shifter Assembly...................... 8W-11-27
Siren.............................. 8W-11-37
Steering Angle Sensor.................. 8W-11-33
TCS Switch......................... 8W-11-27
Time Delay Relay..................... 8W-11-22
Towing/Intrusion Sensor On/Off Switch...... 8W-11-27
Trailer Tow Connector.................. 8W-11-24
Trailer Tow Control Module.............. 8W-11-24
Transmission Relay.................... 8W-11-17
Turn Signal/Anti-Theft Alarm Relay-Left..... 8W-11-23
Turn Signal/Anti-Theft Alarm Relay-Right.... 8W-11-23
Warm Air Auxiliary Heater Assembly....... 8W-11-20
Window Defogger Module-Rear......... 8W-11-16, 19
Window Defogger Switch-Rear............ 8W-11-27
VA8W-11 FUSE BLOCK 8W - 11 - 1

8W-15 GROUND DISTRIBUTION
Component PageA/C Auxiliary Fan..........................8W-15-4
A/C Auxiliary Fan Relay......................8W-15-12
A/C Compressor Clutch Relay...................8W-15-30
A/C Roof Auxiliary Fan......................8W-15-30
A/C Roof Auxiliary Fan Relay...................8W-15-30
Additional Heat Exchanger....................8W-15-12
Additional Heat Exchanger Relay.................8W-15-12
Additional Heat Exchanger Switch................8W-15-24
Airbag Control Module.......................8W-15-11
Ash Receiver Lamp........................8W-15-22
Automatic Temperature Control Module.............8W-15-24
Auxiliary Heater Control.....................8W-15-24
Battery................................8W-15-8
Battery Relay-Auxiliary......................8W-15-11
Battery-Auxiliary..........................8W-15-11
Blower Motor-Front.........................8W-15-9
Brake Fluid Level Switch......................8W-15-8
Brake Wear Sensor-Left Front...................8W-15-8
Brake Wear Sensor-Left Rear...................8W-15-28
Brake Wear Sensor-Right Front..................8W-15-8
Brake Wear Sensor-Right Rear..................8W-15-28
CTEL Connector..........................8W-15-21
Cabin Heater Module........................8W-15-3
Center High Mounted Stop Lamp.................8W-15-6
Central Timer Module.......................8W-15-15
Cigar Lighter............................8W-15-22
Cigar Lighter Lamp........................8W-15-22
Circulation Pump..........................8W-15-9
Circulation Pump Relay-Cabin Heater Module..........8W-15-12
Clockspring.............................8W-15-10
Controller Antilock Brake....................8W-15-2, 28
Crankcase Heater..........................8W-15-4
Cylinder Lock Switch-Driver...................8W-15-10
D+ Relay No. 1...........................8W-15-12
D+ Relay No. 2...........................8W-15-14
Data Link Connector........................8W-15-10
Daytime Running Lamp Relay-Left Side.............8W-15-13
Daytime Running Lamp Relay-Right Side............8W-15-13
Daytime Running Lamps Relay..................8W-15-13
Differential Lock Solenoid Valve..................8W-15-2
Dome Lamp.............................8W-15-6
Dosing Pump............................8W-15-2
Engine Control Module.......................8W-15-7
Engine Coolant Level Switch....................8W-15-2
Fan Stage 1 Relay.........................8W-15-11
Fog Lamp Relay..........................8W-15-11
Fog Lamp Switch.........................8W-15-22
Fuel Pump.............................8W-15-19
Fuse Block No. 1..........................8W-15-7
Fused Ignition Switch Run-Start Relay..............8W-15-14
G100...............................8W-15-2, 3
G101.................................8W-15-4
G102.................................8W-15-4
G103.................................8W-15-4
G200...........................8W-15-6, 7, 8, 9, 10
G201................................8W-15-11
G202................8W-15-11, 12, 13, 14, 15, 16, 17, 18, 19
G203......................8W-15-20, 21, 22, 23, 24, 25
G300............................8W-15-26, 27, 28
G301................................8W-15-28
G302................................8W-15-28
G303................................8W-15-31
G304................................8W-15-31
G305..............................8W-15-29, 30
Glow Plug Control Module.....................8W-15-2
Hazard Warning Switch.......................8W-15-7
Headlamp Adjust Switch.....................8W-15-22
Headlamp Assembly-Left......................8W-15-3
Headlamp Assembly-Right.....................8W-15-4
Heated Seat Module-Driver....................8W-15-19
Heated Seat Module-Passenger..................8W-15-19
Heated Seat Switch-Driver....................8W-15-25
Heated Seat Switch-Passenger..................8W-15-25
Heater Timer-Auxiliary......................8W-15-24
High Idle Switch..........................8W-15-25
Hood Ajar Switch..........................8W-15-4
Horn Relay.............................8W-15-11
Horn Switch............................8W-15-10
Ignition Lock Switch........................8W-15-10
Instrument Cluster........................8W-15-10
Instrument Panel Socket.....................8W-15-20
Interior Lamp No. 1.........................8W-15-6
Interior Lamp No. 2.........................8W-15-6
Interior Lamp No. 3.........................8W-15-6Component PageInterior Lamp No. 4.........................8W-15-6
Interior Lamp No. 5.........................8W-15-6
Interior Lamp-Left.........................8W-15-6
Interior Lamp-Middle Front...................8W-15-5, 6
Interior Lamp-Middle Rear...................8W-15-5, 6
Interior Lamp-Rear No. 2......................8W-15-5
Interior Lamp-Right.......................8W-15-5, 6
Interior Light Switch.......................8W-15-21
Interior Lighting Connector.....................8W-15-6
Intrusion Sensor No. 1.......................8W-15-6
Intrusion Sensor No. 2.......................8W-15-6
Intrusion Sensor No. 3.......................8W-15-6
Kickdown Switch..........................8W-15-8
Lamp Relay-Left..........................8W-15-13
Lamp Relay-Right.........................8W-15-13
License Plate Lamp No. 1.....................8W-15-27
License Plate Lamp No. 2.....................8W-15-27
Locker Switch No. 1........................8W-15-20
Map/Reading Lamp Switch....................8W-15-21
Marker Lamp Connector......................8W-15-17
Marker Lamp No. 1-Left Front..................8W-15-16
Marker Lamp No. 1-Right Front.................8W-15-16
Marker Lamp No. 2-Left Front..................8W-15-16
Marker Lamp No. 2-Right Front.................8W-15-16
Marker Lamp-Left Center.....................8W-15-17
Marker Lamp-Left Rear......................8W-15-27
Marker Lamp-Right Center....................8W-15-17
Marker Lamp-Right Rear.....................8W-15-27
Master Door Lock Switch.....................8W-15-25
Metering Pump...........................8W-15-18
Multi-Function Switch.......................8W-15-7
Optional Equipment Relay....................8W-15-19
Panic Alarm Switch........................8W-15-20
Parking Brake Switch.......................8W-15-15
Power Mirror Motor-Driver....................8W-15-23
Power Mirror Motor-Passenger..................8W-15-23
Power Mirror Switch........................8W-15-23
Power Window Switch-Driver...................8W-15-23
Power Window Switch-Master...................8W-15-23
Radio................................8W-15-21
Rain Sensor............................8W-15-31
Rain Sensor Control Module..................8W-15-19, 31
Reading Lamp Connector......................8W-15-6
Rear Window Defogger Relay...................8W-15-14
Recirculated Air Solenoid Valve...................8W-15-9
Rollover Switch Assembly......................8W-15-3
Roof A/C Blower..........................8W-15-29
Roof A/C Blower Stage I And Ii Relay...............8W-15-29
Roof A/C Blower Stage I Relay..................8W-15-29
Roof A/C Blower Stage Ii Relay..................8W-15-29
Roof A/C Control Module.....................8W-15-28
Roof A/C Switch..........................8W-15-24
Roof Fan Switch..........................8W-15-21
Roof Thermotronic Control Module................8W-15-30
Seat Belt Switch..........................8W-15-15
Security System Module......................8W-15-15
Sentry Key Remote Entry Module.................8W-15-7
Shifter Assembly..........................8W-15-20
Siren.................................8W-15-9
Steering Angle Sensor........................8W-15-7
TCS Switch.............................8W-15-25
Tail Lamp Assembly-Left.....................8W-15-26
Tail Lamp Assembly-Right.....................8W-15-26
Thermotronic Diode........................8W-15-30
Time Delay Relay.........................8W-15-17
Towing/Intrusion Sensor On/Off Switch..............8W-15-22
Trailer Tow Connector.......................8W-15-28
Trailer Tow Control Module....................8W-15-19
Transmission Control Module...................8W-15-19
Transmission Relay........................8W-15-19
Turn Signal No. 1-Left Front....................8W-15-3
Turn Signal No. 1-Right Front...................8W-15-4
Turn Signal No. 2-Left Front....................8W-15-3
Turn Signal No. 2-Right Front...................8W-15-4
Warm Air Auxiliary Heater Assembly...............8W-15-18
Washer Pump Motor-Front.....................8W-15-4
Water Cycle Valve..........................8W-15-9
Window Defogger Module-Rear..................8W-15-15
Window Defogger Switch-Rear..................8W-15-20
Window Defogger-Left Rear....................8W-15-26
Window Defogger-Right Rear...................8W-15-26
Wiper Motor-Front.........................8W-15-9
Wiper/Turn Signal/Engine Start Control Module.........8W-15-7
VA8W-15 GROUND DISTRIBUTION 8W - 15 - 1

8W-18 BUS COMMUNICATIONS
Component Page
Airbag Control Module................ 8W-18-5
Automatic Temperature
Control Module.................. 8W-18-4, 6
Brake Lamp Switch.................. 8W-18-2
Brake Lamp Switch 4 Pole............. 8W-18-2
Cabin Heater Module................. 8W-18-4
Central Timer Module................ 8W-18-4
Controller Antilock Brake............ 8W-18-3, 6
Data Link Connector........... 8W-18-2, 3, 4, 5
Engine Control Module.............. 8W-18-5, 6
Fuse 5............................ 8W-18-2
Fuse 6............................ 8W-18-3Component Page
Fuse Block No. 1.................... 8W-18-2
Fuse Block No. 2.................... 8W-18-3
G200.............................. 8W-18-5
Instrument Cluster................. 8W-18-4, 6
Radio............................. 8W-18-5
Security System Module............... 8W-18-4
Sentry Key Remote Entry Module..... 8W-18-5, 6
Shifter Assembly.................. 8W-18-3, 6
Steering Angle Sensor................ 8W-18-6
Transmission Control Module......... 8W-18-5, 6
Warm Air Auxiliary Heater Assembly..... 8W-18-4
VA8W-18 BUS COMMUNICATIONS 8W - 18 - 1

8W-35 ANTILOCK BRAKES
Component Page
Automatic Temperature Control Module . . 8W-35-2
Brake Fluid Level Switch.............. 8W-35-7
Brake Lamp Switch................ 8W-35-3, 4
Brake Lamp Switch 4 Pole............ 8W-35-10
Brake Pressure Sensor................ 8W-35-9
Brake Wear Sensor-Left Front.......... 8W-35-8
Brake Wear Sensor-Left Rear........... 8W-35-8
Brake Wear Sensor-Right Front......... 8W-35-8
Brake Wear Sensor-Right Rear......... 8W-35-8
Center High Mounted Stop Lamp..... 8W-35-3, 10
Controller Antilock Brake . 8W-35-2, 3, 4, 5, 6, 9, 10
Data Link Connector................. 8W-35-5
Daytime Running Lamps Relay......... 8W-35-2
Fuse 2............................ 8W-35-5
Fuse 3............................ 8W-35-5
Fuse 5.......................... 8W-35-3, 10
Fuse 6............................ 8W-35-5
Fuse 7............................ 8W-35-5
Fuse 9............................ 8W-35-5
Fuse Block No. 1.................. 8W-35-3, 10
Fuse/Relay Block.................... 8W-35-5
G100.............................. 8W-35-4Component Page
G200.......................... 8W-35-4, 7, 8
G202.............................. 8W-35-7
G203.............................. 8W-35-2
G300.............................. 8W-35-8
G302.............................. 8W-35-4
Instrument Cluster................. 8W-35-7, 8
Lateral Acceleration Sensor............ 8W-35-9
Optional Equipment Relay............. 8W-35-5
Parking Brake Switch................ 8W-35-7
Power Distribution Center............. 8W-35-5
Relay Block........................ 8W-35-5
Shifter Assembly.................... 8W-35-3
Steering Angle Sensor................ 8W-35-4
TCS Switch........................ 8W-35-2
Tail Lamp Assembly-Left........... 8W-35-3, 10
Tail Lamp Assembly-Right.......... 8W-35-3, 10
Trailer Tow Control Module......... 8W-35-3, 10
Wheel Speed Sensor-Left Front......... 8W-35-6
Wheel Speed Sensor-Left Rear.......... 8W-35-6
Wheel Speed Sensor-Right Front........ 8W-35-6
Wheel Speed Sensor-Right Rear......... 8W-35-6
VA8W-35 ANTILOCK BRAKES 8W - 35 - 1