2001 DODGE TOWN AND COUNTRY brake light

8W-15 GROUND DISTRIBUTION
Component PageA/C Compressor Clutch...................8Wa-15-6, 7
A/C-Heater Control....................8Wa-15-8, 10
Auto Temp Control.......................8Wa-15-8
Automatic Day/Night Mirror................8Wa-15-18
Autostick Switch........................8Wa-15-9
Back-Up Lamp Switch...................8Wa-15-3, 6
Battery............................8Wa-15-2, 3
Body Control Module.....................8Wa-15-19
Brake Fluid Level Switch..................8Wa-15-14
Brake Lamp Switch......................8Wa-15-14
Cabin Heater Assist......................8Wa-15-7
Center Dome Lamp......................8Wa-15-18
Center High Mounted Stop Lamp.............8Wa-15-23
Clockspring...........................8Wa-15-9
Clutch Pedal Upstop Switch.................8Wa-15-15
Controller Antilock Brake.................8Wa-15-2, 3
Crank Case Ventilation Heater................8Wa-15-7
Crankshaft Position Sensor..................8Wa-15-3
Data Link Connector..................8Wa-15-2, 3, 14
Dosing Pump..........................8Wa-15-7
Driver Door Courtesy Lamp..............8Wa-15-13, 17
Driver Door Lock Switch................8Wa-15-13, 17
Driver Heated Seat Cushion................8Wa-15-10
Driver Heated Seat Module.................8Wa-15-10
Driver Power Seat Switch..................8Wa-15-10
Driver Power Window Switch..............8Wa-15-13, 17
Engine Control Module....................8Wa-15-3
Floor Console Lamp......................8Wa-15-22
Floor Console Power Outlet.................8Wa-15-22
Front Blower Module.....................8Wa-15-10
Front Cigar Lighter......................8Wa-15-8
Front Control Module.................8Wa-15-6, 7, 15
Front Reading Lamps/ Switch...............8Wa-15-18
Fuel Heater..........................8Wa-15-22
Fuel Heater Relay.......................8Wa-15-3
Fuel Pump Module......................8Wa-15-22
G100...............................8Wa-15-2
G100...............................8Wa-15-3
G101..............................8Wa-15-2, 3
G102..............................8Wa-15-4, 5
G103..............................8Wa-15-6, 7
G200............................8Wa-15-8, 9, 10
G201...............................8Wa-15-11
G300........................8Wa-15-12, 13, 14, 15
G301........................8Wa-15-16, 17, 18, 19
G302............................8Wa-15-20, 21
G302...............................8Wa-15-22
G400............................8Wa-15-22, 23
Glove Box Lamp........................8Wa-15-9
Halo Lamp............................8Wa-15-9
Headlamp Switch........................8Wa-15-8
Headlamp Washer Pump Motor...............8Wa-15-5
High Note Horn.........................8Wa-15-5
Hood Ajar Switch.......................8Wa-15-15
Instrument Cluster.......................8Wa-15-8
Instrument Panel Switch Bank...............8Wa-15-9
Intelligent Power Module............8Wa-15-2, 3, 6, 7, 15
Left B-Pillar Switch......................8Wa-15-14
Left Cinch/ Release Motor..................8Wa-15-12
Left Combination Relay...................8Wa-15-21
Left Cylinder Lock Switch..................8Wa-15-13
Left Fog Lamp..........................8Wa-15-5
Left Front Door Ajar Switch.................8Wa-15-13
Left Front Door Lock Motor/ Ajar Switch.........8Wa-15-13
Left Front Park/ Turn Signal Lamp.............8Wa-15-5
Left Full Open Switch....................8Wa-15-12
Left Headlamp.........................8Wa-15-15
Left Headlamp Leveling Motor................8Wa-15-5
Left High Beam Lamp....................8Wa-15-15
Left Liftgate Flood Lamp..................8Wa-15-23
Left Low Beam Lamp.....................8Wa-15-15
Left Mid Reading Lamp...................8Wa-15-18
Left Park Lamp........................8Wa-15-15
Left Power Mirror.......................8Wa-15-9
Left Rear Lamp Assembly..................8Wa-15-21
Left Rear Reading Lamp...................8Wa-15-18
Left Side Impact Airbag Control Module.........8Wa-15-11
Left Sliding Door Control Module.............8Wa-15-12
Left Sliding Door Latch Sensing Switch.........8Wa-15-12
Left Sliding Door Lock Motor................8Wa-15-12Component PageLeft Sliding Door Lock Motor/ Ajar Switch........8Wa-15-12
Left Sliding Door Motor...................8Wa-15-12
Left Stop/ Turn Signal Relay................8Wa-15-21
Left Turn Signal Lamp....................8Wa-15-15
Left Visor/ Vanity Lamp...................8Wa-15-18
License Lamp.......................8Wa-15-20, 23
Lift Pump Motor........................8Wa-15-22
Liftgate Ajar Switch.....................8Wa-15-23
Liftgate Cinch/ Release Motor................8Wa-15-20
Liftgate Cylinder Lock Switch...............8Wa-15-23
Liftgate Right Pinch Sensor.................8Wa-15-20
Low Note Horn.........................8Wa-15-5
Memory Power Seat Switch.................8Wa-15-10
Memory Seat/ Mirror Module................8Wa-15-10
Occupant Restraint Controller...............8Wa-15-11
Overhead Console.......................8Wa-15-18
Oxygen Sensor 1/2 Downstream...............8Wa-15-6
Park/ Neutral Position Switch................8Wa-15-6
Passenger Door Courtesy Lamp............8Wa-15-13, 17
Passenger Door Lock Switch..............8Wa-15-13, 17
Passenger Heated Seat Module...............8Wa-15-19
Passenger Power Seat Switch................8Wa-15-19
Passenger Power Window Switch...........8Wa-15-13, 17
Power Folding Mirror Switch................8Wa-15-10
Power Liftgate Module....................8Wa-15-20
Power Liftgate Motor.....................8Wa-15-20
Power Mirror Switch.....................8Wa-15-10
Power Outlet..........................8Wa-15-8
Powertrain Control Module..................8Wa-15-2
Radiator Fan No. 1.......................8Wa-15-4
Radiator Fan No. 2.......................8Wa-15-4
Radiator Fan Relay.......................8Wa-15-4
Radiator Fan Relay No. 3...................8Wa-15-4
Rear Auto Temp Control Switch..............8Wa-15-14
Rear Blower Front Control Switch.............8Wa-15-10
Rear Blower Motor Power Module...........8Wa-15-10, 22
Rear Blower Rear Control Switch.............8Wa-15-14
Rear Dome Lamp.......................8Wa-15-18
Rear Power Outlet......................8Wa-15-22
Rear Window Defogger Grid.................8Wa-15-23
Rear Wiper Motor.......................8Wa-15-23
Remote Keyless Entry Module................8Wa-15-9
Right B-Pillar Switch.....................8Wa-15-19
Right Cinch/ Release Motor.................8Wa-15-16
Right Combination Relay..................8Wa-15-21
Right Cylinder Lock Switch.................8Wa-15-17
Right Fog Lamp.........................8Wa-15-5
Right Front Door Ajar Switch................8Wa-15-17
Right Front Door Lock Motor/ Ajar Switch........8Wa-15-17
Right Front Park/ Turn Signal Lamp............8Wa-15-5
Right Full Open Switch...................8Wa-15-16
Right Headlamp........................8Wa-15-15
Right Headlamp Leveling Motor...............8Wa-15-5
Right High Beam Lamp...................8Wa-15-15
Right Liftgate Flood Lamp.................8Wa-15-23
Right Low Beam Lamp....................8Wa-15-15
Right Mid Reading Lamp..................8Wa-15-18
Right Park Lamp.......................8Wa-15-15
Right Power Mirror.......................8Wa-15-9
Right Rear Lamp Assembly.................8Wa-15-22
Right Rear Reading Lamp..................8Wa-15-18
Right Side Impact Airbag Control Module........8Wa-15-11
Right Sliding Door Control Module............8Wa-15-16
Right Sliding Door Latch Sensing Switch.........8Wa-15-16
Right Sliding Door Lock Motor...............8Wa-15-16
Right Sliding Door Lock Motor/ Ajar Switch.......8Wa-15-16
Right Sliding Door Motor..................8Wa-15-16
Right Stop/ Turn Signal Relay...............8Wa-15-21
Right Turn Signal Lamp...................8Wa-15-15
Right Visor/ Vanity Lamp..................8Wa-15-18
Sentry Key Immobilizer Module...............8Wa-15-9
Speed Control Servo......................8Wa-15-6
Traction Control Switch....................8Wa-15-9
Trailer Tow Connector....................8Wa-15-21
Transmission Control Module................8Wa-15-2
Transmission Control Relay..................8Wa-15-2
Transmission Range Sensor..................8Wa-15-6
Washer Fluid Level Switch..................8Wa-15-5
Wiper Module.........................8Wa-15-14
RG8W-15 GROUND DISTRIBUTION8Wa-15-1
ProCarManuals.com

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

8W-51 REAR LIGHTING
Component Page
Back-Up Lamp Switch............... 8Wa-51-5
Battery........................... 8Wa-51-5
Body Control Module........... 8Wa-51-2, 3, 4, 5
Brake Lamp Switch................ 8Wa-51-2, 4
Center High Mounted Stop Lamp....... 8Wa-51-6
Front Control Module............ 8Wa-51-2, 4, 5
Fuse 2 (IPM)..................... 8Wa-51-2, 4
Fuse 3 (IPM)................... 8Wa-51-2, 4, 5
Fuse 26 (IPM).................... 8Wa-51-2, 4
G101............................. 8Wa-51-5
G103............................. 8Wa-51-5
G302....................... 8Wa-51-2, 3, 4, 5
G400............................. 8Wa-51-6
Intelligent Power Module......... 8Wa-51-2, 4, 5
Left Rear Lamp Assembly......... 8Wa-51-3, 4, 5
Left Stop/Turn Signal Relay........... 8Wa-51-3
License Lamp...................... 8Wa-51-6
Park Lamp Relay............... 8Wa-51-2, 4, 5
Right Combination Relay............. 8Wa-51-3
Right Rear Lamp Assembly........ 8Wa-51-2, 4, 5
Trailer Tow Connector................ 8Wa-51-3
RG8W-51 REAR LIGHTING8Wa-51-1
ProCarManuals.com

Component Page
C326............................. 8W-80-41
C327............................. 8W-80-41
C327............................. 8W-80-41
C329 (Diesel)....................... 8W-80-42
C329 (Diesel)....................... 8W-80-42
C330 (Diesel)....................... 8W-80-42
C330 (Diesel)....................... 8W-80-42
C331 (Diesel)....................... 8W-80-42
C331 (Diesel)....................... 8W-80-43
C332 (ATC)........................ 8W-80-43
C332 (ATC)........................ 8W-80-43
Cabin Heater Assist C1 (Diesel)........ 8W-80-43
Cabin Heater Assist C2 (Diesel)........ 8W-80-44
Camshaft Position Sensor (Gas)........ 8W-80-44
Camshaft Position Sensor (Diesel)...... 8W-80-44
CD Changer....................... 8W-80-44
Center Dome Lamp (Base/High Line).... 8W-80-45
Center High Mounted Stop Lamp....... 8W-80-45
Clockspring C1..................... 8W-80-45
Clockspring C2..................... 8W-80-45
Clockspring C3..................... 8W-80-45
Clockspring C4..................... 8W-80-46
Clockspring C5..................... 8W-80-46
Clutch Departure Switch (Diesel)....... 8W-80-46
Clutch Interlock/Upstop Switch (MTX) . . . 8W-80-46
Controller Antilock Brake............. 8W-80-47
Crank Case Ventilation Heater (Diesel) . . 8W-80-47
Crankshaft Position Sensor (Diesel)..... 8W-80-48
Crankshaft Position Sensor (Gas)....... 8W-80-48
Data Link Connector................. 8W-80-48
Diagnostic Junction Port.............. 8W-80-49
Dosing Pump....................... 8W-80-49
Driver Airbag C1.................... 8W-80-49
Driver Airbag C2.................... 8W-80-49
Driver Blend Door Actuator (ATC)...... 8W-80-50
Driver Blend Door Actuator (MTC)...... 8W-80-50
Driver Door Courtesy Lamp........... 8W-80-50
Driver Door Lock Switch.............. 8W-80-50
Driver Heated Seat Back............. 8W-80-50
Driver Heated Seat Cushion........... 8W-80-51
Driver Heated Seat Module C1......... 8W-80-51
Driver Heated Seat Module C2......... 8W-80-51
Driver Heated Seat Module C3......... 8W-80-51
Driver Power Seat Front Riser Motor.... 8W-80-52
Driver Power Seat Horizontal Motor..... 8W-80-52
Driver Power Seat Rear Riser Motor.... 8W-80-52
Driver Power Seat Recliner Motor...... 8W-80-52
Driver Power Seat Switch............. 8W-80-52
Driver Power Window Motor........... 8W-80-53
Driver Power Window Switch (LHD)..... 8W-80-53
Driver Power Window Switch (RHD).... 8W-80-53
Driver Seat Belt Switch.............. 8W-80-54
Driver Seat Belt Tensioner............ 8W-80-54
EGR Solenoid (Diesel)................ 8W-80-54Component Page
EGR Solenoid (Gas)................. 8W-80-54
Electric Wiper De-Icer C1............. 8W-80-54
Electric Wiper De-Icer C2............. 8W-80-55
Engine Control Module C1 (Diesel)...... 8W-80-55
Engine Control Module C2 (Diesel)...... 8W-80-57
Engine Coolant Temp Sensor (Diesel).... 8W-80-57
Engine Coolant Temp Sensor (Gas)...... 8W-80-58
Engine Oil Pressure Sensor (Diesel)..... 8W-80-58
Engine Oil Pressure Switch (Gas)....... 8W-80-58
Engine Oil Temperature Sensor (Diesel) . . 8W-80-58
EVAP/Purge Solenoid (Gas)............ 8W-80-58
Evaporator Temperature Sensor........ 8W-80-59
Floor Console Lamp................. 8W-80-59
Floor Console Power Outlet........... 8W-80-59
Front Blower Module C1 (ATC)......... 8W-80-59
Front Blower Module C2 (ATC)......... 8W-80-59
Front Cigar Lighter................. 8W-80-60
Front Reading Lamps/Switch.......... 8W-80-60
Front Washer Pump Motor............ 8W-80-60
Fuel Heater (Diesel)................. 8W-80-60
Fuel Injector No. 1 (2.4L/3.3L/3.8L)..... 8W-80-60
Fuel Injector No. 1 (Diesel)............ 8W-80-61
Fuel Injector No. 2 (2.4L/3.3L/3.8L)..... 8W-80-61
Fuel Injector No. 2 (Diesel)............ 8W-80-61
Fuel Injector No. 3 (2.4L/3.3L/3.8L)..... 8W-80-61
Fuel Injector No. 3 (Diesel)............ 8W-80-61
Fuel Injector No. 4 (2.4L/3.3L/3.8L)..... 8W-80-62
Fuel Injector No. 4 (Diesel)............ 8W-80-62
Fuel Injector No. 5 (3.3L/3.8L)......... 8W-80-62
Fuel Injector No. 6 (3.3L/3.8L)......... 8W-80-62
Fuel Pressure Sensor (Diesel).......... 8W-80-62
Fuel Pressure Solenoid (Diesel)......... 8W-80-63
Fuel Pump Module.................. 8W-80-63
Generator......................... 8W-80-63
Glove Box Lamp.................... 8W-80-63
Glow Plug Relay (Diesel).............. 8W-80-63
Halo Lamp........................ 8W-80-64
Headlamp Switch................... 8W-80-64
Headlamp Washer Pump Motor
(Built-Up-Export)................. 8W-80-64
High Note Horn.................... 8W-80-64
Hood Ajar Switch................... 8W-80-65
Idle Air Control Motor (2.4L).......... 8W-80-65
Idle Air Control Motor (3.3L/3.8L)....... 8W-80-65
Ignition Coil (2.4L).................. 8W-80-65
Ignition Coil (3.3L/3.8L).............. 8W-80-65
Ignition Switch..................... 8W-80-66
Inlet Air Temperature Sensor.......... 8W-80-66
Instrument Cluster.................. 8W-80-66
Instrument Panel Switch Bank......... 8W-80-67
Intelligent Power Module C1.......... 8W-80-67
Intelligent Power Module C2.......... 8W-80-68
Intelligent Power Module C3 (Diesel).... 8W-80-68
Intelligent Power Module C3 (Gas)...... 8W-80-69
8Wa - 80 - 2 8W-80 CONNECTOR PIN-OUTSRG
ProCarManuals.com

Splice Number Location Fig.
S204 Near T/O to Instrument Panel Speaker 9, 10
S205 Near T/O for C201 9
S206 Near T/O for Instrument Cluster 9
S207 In A/C Unit Assembly N/S
S208 (RHD) Between T/O for Antenna Connector and T/O for Front
Cigar Lighter10
S209 (RHD) Between T/O for Front Cigar Lighter and T/O for Brake
Transmission Shift Interlock Solenoid10
S210 (RHD) Near T/O for C203 10
S302 In Floor Pan Track Wiring 13
S303 In T/O to Data Link Connector 13
S304 Near T/O for C307 11
S305 Near T/O for Memory Seat/Mirror Module - C2 N/S
S306 In Floor Pan Track Wiring 11
S307 Near T/O for Memory Power Seat Switch N/S
S308 In Floor Pan Track Wiring 13
S309 In Floor Pan Track Wiring 13
S310 Near T/O for C301 14
S311 In Floor Pan Track Wiring 12
S312 Near T/O for C320 N/S
S313 Near T/O for Power Liftgate Module 18
S314 In Floor Pan Track Wiring 12
S315 In Floor Pan Track Wiring 12
S316 In Floor Pan Track Wiring 12
S317 Near T/O for C101 14
S318 Near T/O for Power Seat Circuit Breaker N/S
S319 In Floor Pan Track Wiring 11
S320 Near T/O for C200 13
S321 In T/O to Data Link Connector 13
S322 Near T/O for C301 14
S323 In Floor Pan Track Wiring 13
S324 In Floor Pan Track Wiring 12
S325 In Floor Pan Track Wiring 12
S326 Near T/O for C101 14
S327 Near Left Side Impact Airbag Module 13
S328 (RS) In Floor Pan Track Wiring 11
S329 Near T/O to Left Rear Pillar Speaker 18
S330 Near T/O for Power Liftgate Module 18
S331 Near T/O for Power Liftgate Motor 18
S332 In Floor Pan Track Wiring 12
S333 (RS) In Floor Pan Track Wiring 11
S334 Near T/O to G301 12
S335 Near T/O for Left Rear Reading Lamp N/S
RG8W-95 SPLICE LOCATIONS BUX8Wa-95-3
SPLICE LOCATIONS BUX (Continued)
ProCarManuals.com

CLEANING
(1) Discard gasket(s).
(2) Clean all sealing surfaces.
INSPECTION
Check manifold for:
²Damage and cracks.
²Mounting surface distortion by using a straight-
edge and thickness gauge.
INSTALLATION - 3.3L
(1) If the following components were removed from
manifold, install and tighten to specifications:
CAUTION: The special screws used for the compos-
ite manifold attached components must be installed
slowly using hand tools only. This requirement is to
prevent the melting of material that causes stripped
threads. If threads become stripped, an oversize
repair screw is available. For more information and
procedure (Refer to 9 - ENGINE/MANIFOLDS/IN-
TAKE MANIFOLD - STANDARD PROCEDURE).
²MAP sensor - 1.7 N´m (15 in. lbs.)
²Throttle cable bracket - 5.6 N´m (50 in. lbs.)
(2) Remove covering on lower intake manifold and
clean surfaces.
(3) Inspect manifold gasket condition. Gaskets can
be re-used, if not damaged. To replace, remove gasket
from upper manifold (Fig. 127). Position new gasket
in seal channel and press lightly in-place. Repeat
procedure for each gasket position.
Fig. 124 PCV & HOSE
1 - HOSE - PCV
2 - P C V VA LV E
Fig. 125 POWER STEERING FLUID RESERVOIR
1 - POWER STEERING RESERVOIR
2 - BOLT - RESERVOIR TO MANIFOLD
3 - NUT - RESERVOIR TO COIL BRACKET
Fig. 126 BRAKE BOOSTER & LDP VACUUM HOSES
1 - LDP & SPEED CONTROL VACUUM HOSE
2 - BRAKE BOOSTER VACUUM HOSE
3 - MAP SENSOR
9 - 144 ENGINE 3.3/3.8LRS
INTAKE MANIFOLD - UPPER 3.3L (Continued)
ProCarManuals.com

FUEL PUMP RELAY
DESCRIPTION
The fuel pump relay is located in the PDC. The
inside top of the PDC cover has a label showing relay
and fuse location.
OPERATION
The fuel pump relay supplies battery voltage to the
fuel pump. A buss bar in the Power Distribution Cen-
ter (PDC) supplies voltage to the solenoid side and
contact side of the relay. The fuel pump relay power
circuit contains a fuse between the buss bar in the
PDC and the relay. The fuse also protects the power
circuit for the Automatic Shutdown (ASD) relay. The
fuse is located in the PDC. Refer to the Wiring Dia-
grams for circuit information.
The PCM controls the fuel pump relay by switch-
ing the ground path for the solenoid side of the relay
on and off. The PCM turns the ground path off when
the ignition switch is in the Off position. When the
ignition switch is in the On position, the PCM ener-
gizes the fuel pump. If the crankshaft position sensor
does not detect engine rotation, the PCM de-ener-
gizes the relay after approximately one second.
IDLE AIR CONTROL MOTOR
DESCRIPTION
The idle air control motor is mounted on the throt-
tle body. The PCM operates the idle air control motor
(Fig. 11) or (Fig. 12).
OPERATION
The PCM adjusts engine idle speed through the
idle air control motor to compensate for engine load,
coolant temperature or barometric pressure changes.
The throttle body has an air bypass passage that
provides air for the engine during closed throttle idle.
The idle air control motor pintle protrudes into the
air bypass passage and regulates air flow through it.
The PCM adjusts engine idle speed by moving the
IAC motor pintle in and out of the bypass passage.
The adjustments are based on inputs the PCM
receives. The inputs are from the throttle position
sensor, crankshaft position sensor, coolant tempera-
ture sensor, MAP sensor, vehicle speed sensor and
various switch operations (brake, park/neutral, air
conditioning).
When engine rpm is above idle speed, the IAC is
used for the following functions:
²Off-idle dashpot
²Deceleration air flow control
²A/C compressor load control (also opens the pas-
sage slightly before the compressor is engaged sothat the engine rpm does not dip down when the
compressor engages)
Target Idle
Target idle is determined by the following inputs:
²Gear position
²ECT Sensor
²Battery voltage
²Ambient/Battery Temperature Sensor
²VSS
Fig. 11 TPS/IAC 2.4L
1 - IAC MOTOR
2 - TP SENSOR
3 - IAT SENSOR
Fig. 12 TPS/IAC 3.3/3.8L
1 - IDLE AIR CONTROL VALVE
2 - TP SENSOR
RSFUEL INJECTION14-27
ProCarManuals.com

²Visual Buzziness (high frequency, rapid vibra-
tion up and down)
To rule out vibrations due to brakes or powertrain:
²Lightly apply brakes at speed; if vibration occurs
or is enhanced, vibration is likely due to causes other
than tire and wheel assemblies.
²Shift transmission into neutral while vibration
is occurring; if vibration is eliminated, vibration is
likely due to causes other than tire and wheel assem-
blies.
For brake vibrations, (Refer to 5 - BRAKES -
BASE/HYDRAULIC/MECHANICAL/ROTORS -
DIAGNOSIS AND TESTING).
For powertrain vibrations, (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE - DIAGNOSIS AND TEST-
ING).
For tire and wheel assembly vibrations, continue
with this diagnosis an testing procedure.
TIRE AND WHEEL BALANCE
(1) Balance the tire and wheel assemblies as nec-
essary following the wheel balancer manufacturer's
instructions and using the information listed in Stan-
dard Procedure - Tire And Wheel Balance. (Refer to
22 - TIRES/WHEELS - STANDARD PROCEDURE)
(2) Road test the vehicle for at least 5 miles, fol-
lowing the format described in Road Test.
(3) If the vibration persists, continue with this
diagnosis an testing procedure.
TIRE AND WHEEL RUNOUT/MATCH MOUNTING
(1)System Radial Runout.This on-the-vehicle
system check will measure the radial runout includ-
ing the hub, wheel and tire.
(a) Raise vehicle so tires clear floor. Refer to
Hoisting in Lubrication and Maintenance.
(b) Apply masking tape around the circumfer-
ence of the tire in the locations to be measured
(Fig. 2). Do not overlap the tape.
(c) Check system runout using Dial Indicator
Set, Special Tool C-3339A with 25-W wheel, or
equivalent. Place the end of the indicator against
each taped area (one at a time) (Fig. 2) and rotate
the tire and wheel. System radial runout should
not exceed 0.76 mm (0.030 inch) with no tread
ªdipsº or ªsteps.º Tread ªdipsº and ªstepsº can be
identified by spikes of the dial indicator gauge.
²Tread9dips9; Rapid decrease then increase in
dial indicator reading over 101.6 mm (4.0 inch) of
tread circumference.
²Tread9steps9; Rapid decrease or increase in dial
indicator reading over 101.6 mm (4.0 inch) of tread
circumference.
(d) If system runout is excessive, re-index the
tire and wheel assembly on the hub. Remove
assembly from vehicle and install it back on thehub two studs over from original mounting posi-
tion. If re-indexing the tire and wheel assembly
corrects or reduces system runout, check hub
runout and repair as necessary (Refer to 5 -
BRAKES - BASE/HYDRAULIC/MECHANICAL/
ROTORS - DIAGNOSIS AND TESTING).
(e) If system runout is still excessive, continue
with this diagnosis an testing procedure.
(2)Tire and Wheel Assembly Radial Runout.
This radial runout check is performed with the tire
and wheel assembly off the vehicle.
(a) Remove tire and wheel assembly from vehicle
and install it on a suitable wheel balancer.
(b) Check system runout using Dial Indicator
Set, Special Tool C-3339A with 25-W wheel, or
equivalent. Place the end of the indicator against
each taped area (one at a time) (Fig. 2) and rotate
the tire and wheel. Radial runout should not
exceed 0.76 mm (0.030 inch) with no tread ªdipsº
or ªsteps.º Tread ªdipsº and ªstepsº can be identi-
fied by spikes of the dial indicator gauge.
(c) If runout exceeds limits, mark the original
location of the tire on the wheel at the valve stem
(Fig. 3). Also, mark the tire and wheel to indicate
the original high spot of the assembly and record
the runout measurement.
(d) If runout exceeds limits, the tire will need to
be dismounted from the wheel to verify wheel vs.
tire contribution. Refer to Wheel Runout below.
(3)Lateral Runout.Lateral runout for the vehi-
cle system as well as the tire and wheel assembly
should be less than 0.76 mm (0.030 inch). The same
Fig. 2 Radial Runout Measurement
1 - MASKING TAPE
2 - DIAL INDICATOR
22 - 2 TIRES/WHEELSRS
TIRES/WHEELS (Continued)
ProCarManuals.com