fuse box DODGE TOWN AND COUNTRY 2001 Service Manual

[x] Cancel search | Manufacturer: DODGE, Model Year: 2001, Model line: TOWN AND COUNTRY, Model: DODGE TOWN AND COUNTRY 2001
Pages: 2321, PDF Size: 68.09 MB

Page 437 of 2321

DODGE TOWN AND COUNTRY 2001 Service Manual ²Remote Keyless Entry Module (RKE)- Refer
toRemote Keyless Entry Modulein Power Locks
for more information.
²Electronic Vehicle Information Center
(EVIC)- Refer toElectronic Vehicle Information
Cent

²Remote Keyless Entry Module (RKE)- Refer
toRemote Keyless Entry Modulein Power Locks
for more information.
²Electronic Vehicle Information Center
(EVIC)- Refer toElectronic Vehicle Information
Centerin Overhead Console for more information.
²Heated Seat Module (HSM)- Refer toHeated
Seat Modulein Electronic Control Modules for more
information.
²Memory Heated Seat Module (MHSM)-If
the vehicle is equipped with the Memory System,
refer toMemory Seat Mirror Module (MSMM)in
Electronic Control Modules for more information.
Refer toWiring Diagramsfor complete circuit
diagrams. Following are general descriptions of the
major components in the heated seat system.
OPERATION
The heated seat system will only operate when the
ignition switch is in the On position, and the surface
temperature at the front seat heating element sen-
sors is below the designed temperature set points of
the system. The heated seat system will not operate
in ambient temperatures greater than about 41É C
(105É F). The front seat heating elements and sensors
are hard wired to the Heated Seat Module (HSM) or
the Memory Heated Seat Module (MHSM).
The heated seat switches are hard wired to the
Body Control Module (BCM). The BCM monitors the
heated seat switch inputs, then sends heated seat
switch status messages to the HSM or MHSM over
the Programmable Communications Interface J1850
(PCI) data bus. The HSM or MHSM contains the con-
trol logic for the heated seat system. The HSM or
MHSM responds to the heated seat switch status
messages, ignition switch status messages, and the
front seat heating element sensor inputs by control-
ling the output to the front seat heating elements
through integral solid-state relays.
When a seat heater is turned on, the sensor
located on the seat cushion electric heater element
provides the HSM or MHSM with an input indicating
the surface temperature of the seat cushion. If the
surface temperature input is below the temperature
set point for the selected Low or High heated seat
switch position, the HSM or MHSM energizes the
integral solid-state relay, which supplies battery cur-
rent to the heating elements in the seat cushion and
back. When the sensor input indicates the correct
temperature set point has been achieved, the HSM or
MHSM de-energizes the solid-state relay. The HSM
or MHSM will continue to cycle the solid-state relay
as needed to maintain the temperature set point.
The HSM or MHSM and the seat heater elements
operate on non-switched battery current supplied
through the power seat fuse in the intelligent powermodule. However, the HSM or MHSM will automati-
cally turn off the heating elements if it detects an
open in the sensor circuit, a short in the heating ele-
ment circuit causing an excessive current draw, or
when the ignition switch is turned to the Off posi-
tion.
See the owner's manual in the vehicle glove box for
more information on the features, use and operation
of the heated seat system.
DRIVER HEATED SEAT
SWITCH
DESCRIPTION
The heated seat switches are mounted in the
instrument panel center bezel (Fig. 2). The two three-
position rocker-type switches, one switch for each
front seat, are incorporated into one large switch
assembly that also includes the hazzard, rear window
wiper and washer switches. The heated seat switches
provide a resistor multiplexed signal to the Body
Control Module (BCM) through separate hard wired
circuits. Each switch has an Off, Low, and High posi-
tion so that both the driver and the front seat pas-
senger can select a preferred seat heating mode.
Each switch has two Light-Emitting Diodes (LED)
which light to indicate that the heater for the seat is
turned on.
The heated seat switches and their LEDs cannot
be repaired. If either switch or LED is faulty or dam-
aged, the entire switch assembly must be replaced.
Fig. 2 HEATED SEAT SWITCHES
8G - 8 HEATED SEAT SYSTEMRS
HEATED SEAT SYSTEM (Continued)
ProCarManuals.com

Page 564 of 2321

DODGE TOWN AND COUNTRY 2001 Service Manual trically and independently using the separate power
seat switches found on the outboard seat cushion
side shield of each front seat. See the owners manual
in the vehicle glove box for more informatio

trically and independently using the separate power
seat switches found on the outboard seat cushion
side shield of each front seat. See the owner's manual
in the vehicle glove box for more information on the
features, use and operation of the power seat system.
OPERATION - MEMORY SYSTEM
The Memory Seat/Mirror Module (MSMM) will
drive a maximum of 2 motors at a time in a given
direction. If conflicting directions are requested, the
priority for response will be as follows:
²Seat Track Rearward
²Seat Front Down
²Seat Rear Down
²Recliner Rearward
²Seat Track Forward
²Seat Front Up
²Seat Rear Up
²Recliner Forward
The inputs from these switches to the MSMM is a
current limited battery source fed by the MSMM.
This protects the MSMM printed circuit board traces
from acting as fuses. All of these switch contact
inputs to the MSMM are normally closed to ground,
except when actuated.
Soft stops are incorporated to prevent the motor
from being driven into a stall. Should the seat have
restricted travel, refer to Resetting Soft Stops in this
section.
See the owner's manual in the vehicle glove box for
more information on the features, use and operation
of the memory system. For diagnosis of the MSM, the
PCI data bus, or the other electronic modules on the
PCI data bus that provide inputs and outputs for the
memory system, the use of a DRBtscan tool and the
proper Diagnostic Procedures manual are recom-
mended.
ELECTRONIC VEHICLE INFORMATION CENTER
The Electronic Vehicle Information Center (EVIC)
serves as the user interface for the memory system.
It displays memory system status messages and pro-
vides the user with the means for enabling and dis-
abling the many customer programmable features
available on the vehicle, including those for the mem-
ory system.
See the owner's manual in the vehicle glove box for
more information on the features, use and operation
of the EVIC. Refer toElectronic Vehicle Informa-
tion Centerin Overhead Console Systems for more
information on the EVIC.
DIAGNOSIS AND TESTING - POWER SEAT
SYSTEM
Following are tests that will help to diagnose the
hard wired components and circuits of the power seatsystem. However, if the vehicle is also equipped with
the optional memory system, these tests may not
prove conclusive in the diagnosis of the driver side
power seat. In order to obtain conclusive testing of
the driver side power seat with the memory system
option, the Programmable Communications Interface
(PCI) data bus network and all of the electronic mod-
ules that provide inputs to, or receive outputs from
the memory system components must be checked.
The most reliable, efficient, and accurate means to
diagnose the driver side power seat with the memory
system option requires the use of a DRBtscan tool
and the proper Diagnostic Procedures manual. The
DRBtscan tool can provide confirmation that the
PCI data bus is functional, that all of the electronic
modules are sending and receiving the proper mes-
sages on the PCI data bus, and that the memory sys-
tem is receiving the proper hard wired inputs and
relaying the proper hard wired outputs to perform its
driver side power seat functions.
WARNING: SOME VEHICLES ARE EQUIPPED WITH
SEATBACK MOUNTED AIRBAGS (Fig. 1). BEFORE
ATTEMPTING TO DIAGNOSE OR SERVICE ANY
SEAT OR POWER SEAT SYSTEM COMPONENT
YOU MUST FIRST DISCONNECT AND ISOLATE THE
BATTERY NEGATIVE CABLE. THEN WAIT TWO MIN-
UTES FOR THE SYSTEM CAPACITOR TO DIS-
CHARGE BEFORE FURTHER SYSTEM SERVICE.
THIS IS THE ONLY SURE WAY TO DISABLE THE
AIRBAG SYSTEM. FAILURE TO DO SO COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
Before any testing of the power seat system is
attempted, the battery should be fully-charged and
all of the power seat system wire harness connections
and pins cleaned and tightened to ensure proper cir-
cuit continuity and ground paths. For complete cir-
cuit diagrams, refer toPower Seatin Wiring
Diagrams.
With the dome lamp on, apply the power seat
switch in the direction of the failure. If the dome
lamp dims, the seat may be jamming. Check under
and behind the seat for binding or obstructions. If
the dome lamp does not dim, proceed with testing of
the individual components and circuits.
DIAGNOSIS AND TESTING - MEMORY SYSTEM
CHECK AND RESET SOFT STOPS
To check and reset the power memory seat soft
stops, use the power seat control switches to move
the seat in one direction to the end of travel, allow a
couple of seconds before re-energizing the seat in the
same direction until it stops and for three additional
seconds after it stops. (The amount the seat moved
RSPOWER SEATS8N-51
POWER SEATS (Continued)
ProCarManuals.com

Page 632 of 2321

DODGE TOWN AND COUNTRY 2001 Service Manual 8W-02 COMPONENT INDEX
Component Page
A/C Compressor Clutch Relay........... 8Wa-42
A/C Compressor Clutch................ 8Wa-42
A/C-Heater Control................... 8Wa-42
A/C Pressure Sensor........

8W-02 COMPONENT INDEX
Component Page
A/C Compressor Clutch Relay........... 8Wa-42
A/C Compressor Clutch................ 8Wa-42
A/C-Heater Control................... 8Wa-42
A/C Pressure Sensor.................. 8Wa-42
Accelerator Pedal Position Sensor........ 8Wa-30
Accessory Relay...................... 8Wa-10
Airbags............................. 8Wa-43
Ambient Temp Sensor................. 8Wa-49
Antenna............................ 8Wa-47
ATC Remote Sensor................... 8Wa-42
Auto Shut Down Relay................. 8Wa-30
Auto Temp Control.................... 8Wa-42
Automatic Day/Night Mirror............ 8Wa-49
Autostick Switch..................... 8Wa-31
Back-Up Lamp Switch................. 8Wa-51
Battery Temperature Sensor............ 8Wa-20
Battery............................. 8Wa-20
Blend Door Actuators.................. 8Wa-42
Blower Motor Resistor................. 8Wa-42
Body Control Module.................. 8Wa-45
Boost Pressure Sensor................. 8Wa-30
B-Pillar Switches..................... 8Wa-61
Brake Fluid Level Switch............... 8Wa-40
Brake Lamp Switch................... 8Wa-51
Brake Transmission Shift Interlock
Solenoid.......................... 8Wa-31
Cabin Heater Assist................... 8Wa-30
Camshaft Position Sensor.............. 8Wa-30
CD Changer......................... 8Wa-47
Center High Mounted Stop Lamp........ 8Wa-51
Cinch/Release Motors.................. 8Wa-61
Clockspring................. 8Wa-33, 41, 43, 47
Clutch Pedal Interlock Switch Jumper..... 8Wa-10
Clutch Pedal Interlock Switch........... 8Wa-10
Clutch Pedal Upstop Switch............. 8Wa-30
Combination Relays................... 8Wa-54
Controller Antilock Brake.............. 8Wa-35
Crank Case Ventilation Heater.......... 8Wa-30
Crankshaft Position Sensor............. 8Wa-30
Cylinder Lock Switches................ 8Wa-39
Data Link Connector.................. 8Wa-18
Defogger Relay....................... 8Wa-48
Diagnostic Junction Port............... 8Wa-18
Dome Lamps........................ 8Wa-44
Door Ajar Switches.................... 8Wa-39
Door Courtesy Lamps.................. 8Wa-44
Door Lock Motor/Ajar Switches.......... 8Wa-61
Door Lock Switches................... 8Wa-61
Dosing Pump........................ 8Wa-30
Driver Heated Seat Module............. 8Wa-63
ECM/PCM Relay..................... 8Wa-30
EGR Solenoid........................ 8Wa-30Component Page
Electric Wiper De-Icer................. 8Wa-48
Engine Control Module................ 8Wa-30
Engine Coolant Temp Sensor............ 8Wa-30
Engine Oil Pressure Sensor............. 8Wa-30
Engine Oil Pressure Switch............. 8Wa-30
Engine Oil Temperature Sensor.......... 8Wa-30
EVAP/Purge Solenoid.................. 8Wa-30
Evaporator Temperature Sensor......... 8Wa-42
Floor Console Lamp................... 8Wa-44
Floor Console Power Outlet............. 8Wa-41
Fog Lamps.......................... 8Wa-50
Front Blower Module.................. 8Wa-42
Front Blower Motor Relay.............. 8Wa-42
Front Blower Motor................... 8Wa-42
Front Cigar Lighter................... 8Wa-41
Front Control Module.................. 8Wa-10
Front Fog Lamp Relay................. 8Wa-50
Front Intrusion Sensor................. 8Wa-39
Front Reading Lamps/Switch............ 8Wa-44
Front Washer Pump Motor.............. 8Wa-53
Front Wiper Hi/Low Relay.............. 8Wa-53
Front Wiper On/Off Relay.............. 8Wa-53
Fuel Heater Relay.................... 8Wa-10
Fuel Heater......................... 8Wa-30
Fuel Injectors........................ 8Wa-30
Fuel Pressure Sensor.................. 8Wa-30
Fuel Pressure Solenoid................. 8Wa-30
Fuel Pump Module.................... 8Wa-30
Fuel Pump Relay..................... 8Wa-30
Full Open Switches................... 8Wa-61
Fuselink............................ 8Wa-10
Fuses (IPM)......................... 8Wa-10
Generator........................... 8Wa-20
Glove Box Lamp...................... 8Wa-44
Glow Plug Relay...................... 8Wa-30
Glow Plugs.......................... 8Wa-30
Grounds............................ 8Wa-15
Halo Lamp.......................... 8Wa-44
Headlamp Leveling Motors............. 8Wa-50
Headlamp Switch..................... 8Wa-50
Headlamp Washer Pump Motor.......... 8Wa-53
Headlamp Washer Relay............... 8Wa-53
Headlamps.......................... 8Wa-50
Heated Seat Backs.................... 8Wa-63
Heated Seat Cushions................. 8Wa-63
High Beam Lamps.................... 8Wa-50
Hood Ajar Switch..................... 8Wa-39
Horn Relay.......................... 8Wa-41
Horn Switch......................... 8Wa-41
Horns.............................. 8Wa-41
Idle Air Control Motor................. 8Wa-30
Ignition Coil......................... 8Wa-30
RG8W-02 COMPONENT INDEX8Wa-02-1
ProCarManuals.com

Page 842 of 2321

DODGE TOWN AND COUNTRY 2001 Service Manual 8W-44 INTERIOR LIGHTING
Component Page
A/C- Heater Control................. 8Wa-44-8
Accessory Relay..................... 8Wa-44-4
Auto Temp Control.................. 8Wa-44-8
Body Control Module.....

Page 850 of 2321

DODGE TOWN AND COUNTRY 2001 Service Manual 8W-45 BODY CONTROL MODULE
Component Page
A/C-Heater Control.............. 8Wa-45-15, 18
Auto Temp Control.............. 8Wa-45-15, 18
Automatic Day/Night Mirror.......... 8Wa-45-11
Body Control Module

8W-45 BODY CONTROL MODULE
Component Page
A/C-Heater Control.............. 8Wa-45-15, 18
Auto Temp Control.............. 8Wa-45-15, 18
Automatic Day/Night Mirror.......... 8Wa-45-11
Body Control Module . . 8Wa-45-2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 18, 19
Center Dome Lamp............... 8Wa-45-9, 13
Clockspring....................... 8Wa-45-16
Controller Antilock Brake............ 8Wa-45-13
Diagnostic Junction Port............. 8Wa-45-12
Driver Door Courtesy Lamp.......... 8Wa-45-14
Driver Door Lock Switch.......... 8Wa-45-12, 14
Driver Heated Seat Module........... 8Wa-45-11
Floor Console Lamp................ 8Wa-45-13
Front Cigar Lighter................. 8Wa-45-16
Front Control Module................ 8Wa-45-3
Front Reading Lamps/Switch....... 8Wa-45-8, 13
Fuel Pump Module................. 8Wa-45-14
Fuse 14 (IPM)...................... 8Wa-45-3
Fuse 19 (IPM)...................... 8Wa-45-2
Fuse 20 (IPM)...................... 8Wa-45-2
Fuse 24 (IPM)...................... 8Wa-45-2
G301......................... 8Wa-45-5, 6, 8
Glove Box Lamp................... 8Wa-45-18
Halo Lamp....................... 8Wa-45-18
Headlamp Switch............. 8Wa-45-11, 15, 19
Hood Ajar Switch.................. 8Wa-45-12
Ignition Switch..................... 8Wa-45-3
Instrument Cluster.............. 8Wa-45-15, 18
Instrument Panel Switch Bank . . 8Wa-45-10, 11, 16,
18
Intelligent Power Module..... 8Wa-45-2, 3, 5, 6, 13
Left B-Pillar Switch................. 8Wa-45-9
Left Cylinder Lock Switch............ 8Wa-45-10
Left Front Door Lock Motor/Ajar Switch . 8Wa-45-4,
7
Left Liftgate Flood Lamp............ 8Wa-45-12
Left Mid Reading Lamp........... 8Wa-45-9, 14
Left Power Mirror.................. 8Wa-45-19
Left Rear Lamp Assembly........... 8Wa-45-5, 6
Left Rear Reading Lamp........... 8Wa-45-9, 14
Left Remote Radio Switch............ 8Wa-45-16
Left Repeater Lamp................ 8Wa-45-19
Left Sliding Door Control Module.... 8Wa-45-8, 10
Left Sliding Door Lock Motor.......... 8Wa-45-7
Left Sliding Door Lock Motor/Ajar Switch. 8Wa-45-7,
8
Left Stop/Turn Signal Relay........... 8Wa-45-5
Left Visor/Vanity Lamp.............. 8Wa-45-13
License Lamp...................... 8Wa-45-8
Liftgate Ajar Switch................ 8Wa-45-12
Liftgate Cinch/Release Motor......... 8Wa-45-12
Liftgate Cylinder Lock Switch.......... 8Wa-45-9Component Page
Memory Seat Switch................. 8Wa-45-4
Message Center.................... 8Wa-45-17
Multi- Function Switch.............. 8Wa-45-15
Name Brand Speaker Relay........... 8Wa-45-3
Overhead Console................ 8Wa-45-4, 11
Passenger Door Courtesy Lamp....... 8Wa-45-14
Passenger Door Lock Switch....... 8Wa-45-12, 14
Passenger Folding Mirror Relay....... 8Wa-45-19
Passenger Heated Seat Module........ 8Wa-45-11
Power Folding Mirror Switch......... 8Wa-45-19
Power Liftgate Module............... 8Wa-45-8
Power Mirror Switch................ 8Wa-45-15
Radio............................ 8Wa-45-16
Rear Auto Temp Control Switch.... 8Wa-45-10, 18
Rear Blower Rear Control Switch...... 8Wa-45-10
Rear Dome Lamp................... 8Wa-45-9
Rear Wiper Motor................... 8Wa-45-8
Remote Keyless Entry Module...... 8Wa-45-4, 15
Right B-Pillar Switch................ 8Wa-45-9
Right Combination Relay............. 8Wa-45-5
Right Cylinder Lock Switch........... 8Wa-45-10
Right Front Door Lock Motor/Ajar Switch. 8Wa-45-7,
9
Right Liftgate Flood Lamp........... 8Wa-45-12
Right Mid Reading Lamp.......... 8Wa-45-9, 14
Right Power Mirror................. 8Wa-45-19
Right Rear Lamp Assembly.......... 8Wa-45-5, 6
Right Rear Reading Lamp.......... 8Wa-45-9, 14
Right Remote Radio Switch........... 8Wa-45-16
Right Repeater Lamp............... 8Wa-45-19
Right Sliding Door Control Module . . . 8Wa-45-8, 10
Right Sliding Door Lock Motor......... 8Wa-45-7
Right Sliding Door Lock Motor/Ajar Switch. 8Wa-45-7,
8
Right Visor/Vanity Lamp............. 8Wa-45-13
Thatcham Alarm Module............. 8Wa-45-10
Traction Control Switch............. 8Wa-45-16
RG8W-45 BODY CONTROL MODULE8Wa-45-1
ProCarManuals.com

Page 1036 of 2321

DODGE TOWN AND COUNTRY 2001 Service Manual FUEL PRESSURE SOLENOID (DIESEL) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K342 16BR/WT ECM/PCM RELAY OUTPUT
2 K87 16BR FUEL PRESSURE SOLENOID CONTROL
FUEL PUMP MODULE - LT. GRAY 4 WAY
CAV CIRCUIT FUNCTION