DODGE RAM 2001 Service Repair Manual

8W-80 CONNECTOR PIN-OUTS
Component Page
4WD Switch 8W-80-4
A/C Compressor Clutch................ 8W-80-4
A/C Heater Control................... 8W-80-4
A/C Heater Temperature Select......... 8W-80-4
A/C High Pressure Switch............. 8W-80-4
A/C Low Pressure Switch.............. 8W-80-5
Accelerator Pedal Position Sensor
(Diesel).......................... 8W-80-5
Aftermarket Trailer Tow Connector...... 8W-80-5
Airbag Control Module................ 8W-80-5
Ambient Temperature Sensor........... 8W-80-6
Ash Receiver Lamp................... 8W-80-6
Automatic Day/Night Mirror............ 8W-80-6
Back-Up Lamp Switch (M/T)........... 8W-80-6
Battery Temperature Sensor............ 8W-80-6
Blend Door Actuator.................. 8W-80-6
Blower Motor....................... 8W-80-7
Blower Motor Resistor Block............ 8W-80-7
Brake Lamp Switch.................. 8W-80-7
Brake Pressure Switch................ 8W-80-7
Bypass Jumper (A/T)................. 8W-80-7
C105.............................. 8W-80-7
C105.............................. 8W-80-8
C106.............................. 8W-80-8
C106.............................. 8W-80-8
C114 .............................. 8W-80-8
C114 .............................. 8W-80-8
C125 (Diesel)....................... 8W-80-8
C125 (Diesel)....................... 8W-80-9
C126 (Diesel)....................... 8W-80-9
C126 (Diesel)....................... 8W-80-9
C129............................. 8W-80-10
C129............................. 8W-80-10
C130 (Diesel)....................... 8W-80-11
C130 (Diesel) (In PDC)............... 8W-80-12
C130 (Gas)........................ 8W-80-13
C130 (Gas) (In PDC)................. 8W-80-14
C134............................. 8W-80-15
C134............................. 8W-80-16
C203............................. 8W-80-18
C203............................. 8W-80-18
C205............................. 8W-80-19
C205............................. 8W-80-19
C206 (Heated Seats)................. 8W-80-19
C206 (Heated Seats)................. 8W-80-19
C237............................. 8W-80-20
C237............................. 8W-80-20
C303............................. 8W-80-20
C303............................. 8W-80-20
C308............................. 8W-80-21
C308............................. 8W-80-21
C329 (Club Cab).................... 8W-80-21
C329 (Club Cab).................... 8W-80-21
C329 (Standard Cab)................ 8W-80-22Component Page
C329 (Standard Cab)................ 8W-80-22
C333 (Club Cab).................... 8W-80-22
C333 (Club Cab).................... 8W-80-22
C333 (Standard Cab)................ 8W-80-22
C333 (Standard Cab)................ 8W-80-23
C342............................. 8W-80-23
C342............................. 8W-80-23
C343............................. 8W-80-23
C343............................. 8W-80-23
C344 (Dual Rear Wheels)............. 8W-80-23
C344 (Dual Rear Wheels)............. 8W-80-24
C345............................. 8W-80-24
C345............................. 8W-80-24
C346............................. 8W-80-25
C346............................. 8W-80-25
C347............................. 8W-80-25
C347............................. 8W-80-26
C348............................. 8W-80-26
C348............................. 8W-80-26
C352............................. 8W-80-27
C352............................. 8W-80-27
C353............................. 8W-80-27
C353............................. 8W-80-27
C358............................. 8W-80-27
C358............................. 8W-80-27
C359 (Heated Seat).................. 8W-80-28
C359 (Heated Seat).................. 8W-80-28
C360 (Club Cab).................... 8W-80-28
C360 (Club Cab).................... 8W-80-28
C361............................. 8W-80-29
C361............................. 8W-80-29
C364............................. 8W-80-29
C364............................. 8W-80-29
C365 (Heated Seat).................. 8W-80-30
C365 (Heated Seat).................. 8W-80-30
Camshaft Position Sensor (Diesel)...... 8W-80-30
Camshaft Position Sensor
(Gas Except 8.0L)................. 8W-80-30
Camshaft Position Sensor (8.0L Gas).... 8W-80-30
Cargo Lamp No. 1................... 8W-80-31
Cargo Lamp No. 2................... 8W-80-31
Center High Mounted Stop Lamp No. 1 . . 8W-80-31
Center High Mounted Stop Lamp No. 2 . . 8W-80-31
Center Identification Lamp............ 8W-80-31
Central Timer Module C1............. 8W-80-32
Central Timer Module C2............. 8W-80-32
Cigar Lighter...................... 8W-80-32
Clockspring C1..................... 8W-80-33
Clockspring C2..................... 8W-80-33
Clockspring C3..................... 8W-80-33
Clutch Pedal Position Switch (M/T)..... 8W-80-33
Controller Antilock Brake C1.......... 8W-80-33
Controller Antilock Brake C2 (ABS)..... 8W-80-34
Crankshaft Position Sensor (Gas 8.0L) . . . 8W-80-34
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 1

Component Page
Crankshaft Position Sensor
(Gas Except 8.0L)................. 8W-80-34
Cummins Bus (Diesel)............... 8W-80-34
Cup Holder Lamp................... 8W-80-34
Data Link Connector................. 8W-80-35
Daytime Running Lamp Module........ 8W-80-35
Dome Lamp....................... 8W-80-35
Driver Airbag...................... 8W-80-35
Driver Cylinder Lock Switch........... 8W-80-36
Driver Door Ajar Switch (Premium)..... 8W-80-36
Driver Door Ajar Switch (Base)......... 8W-80-36
Driver Door Lock Motor.............. 8W-80-36
Driver Door Window/Lock Switch....... 8W-80-36
Driver Heated Seat Cushion........... 8W-80-37
Driver Heated Seat Switch............ 8W-80-37
Driver Lumbar Motor................ 8W-80-37
Driver Power Seat Front Vertical Motor
(Club Cab)....................... 8W-80-37
Driver Power Seat Front Vertical Motor
(Standard Cab)................... 8W-80-37
Driver Power Seat Horizontal Motor
(Club Cab)....................... 8W-80-38
Driver Power Seat Horizontal Motor
(Standard Cab)................... 8W-80-38
Driver Power Seat Rear Vertical Motor
(Club Cab)....................... 8W-80-38
Driver Power Seat Rear Vertical Motor
(Standard Cab)................... 8W-80-38
Driver Power Seat Switch (Club Cab).... 8W-80-38
Driver Power Seat Switch
(Standard Cab)................... 8W-80-39
Driver Power Window Motor........... 8W-80-39
Electric Brake Provision.............. 8W-80-39
Engine Control Module (Diesel)........ 8W-80-40
Engine Coolant Temperature Sensor
(Diesel)......................... 8W-80-41
Engine Coolant Temperature Sensor
(Gas)........................... 8W-80-41
Engine Oil Pressure Sensor (Diesel)..... 8W-80-41
Engine Oil Pressure Sensor (Gas)....... 8W-80-41
Evap/Purge Solenoid................. 8W-80-41
Front Washer Pump................. 8W-80-41
Fuel Heater (Diesel)................. 8W-80-42
Fuel Injection Pump (Diesel)........... 8W-80-42
Fuel Injector No. 1.................. 8W-80-42
Fuel Injector No. 2.................. 8W-80-42
Fuel Injector No. 3.................. 8W-80-42
Fuel Injector No. 4.................. 8W-80-43
Fuel Injector No. 5.................. 8W-80-43
Fuel Injector No. 6.................. 8W-80-43
Fuel Injector No. 7 (5.2L/5.9L/8.0L)..... 8W-80-43
Fuel Injector No. 8 (5.2L/5.9L/8.0L)..... 8W-80-43
Fuel Injector No. 9 (8.0L)............. 8W-80-43
Fuel Injector No. 10 (8.0L)............ 8W-80-44
Fuel Pump Module (Gas)............. 8W-80-44
Fuel Tank Module (Diesel)............ 8W-80-44
Fuel Transfer Pump (Diesel)........... 8W-80-44Component Page
G300............................. 8W-80-44
Generator......................... 8W-80-45
Glove Box Lamp And Switch........... 8W-80-45
Headlamp Switch C1................ 8W-80-45
Headlamp Switch C2................ 8W-80-45
Heated Mirror Switch................ 8W-80-45
High Note Horn.................... 8W-80-46
Idle Air Control Motor................ 8W-80-46
Ignition Coil (3.9L/5.2L/5.9L).......... 8W-80-46
Ignition Coil 4 Pack (8.0L)............ 8W-80-46
Ignition Coil 6 Pack (8.0L)............ 8W-80-46
Ignition Switch C1.................. 8W-80-47
Ignition Switch C2.................. 8W-80-47
Instrument Cluster C1............... 8W-80-47
Instrument Cluster C2............... 8W-80-47
Intake Air Heater Relays (Diesel)....... 8W-80-47
Intake Air Temperature Sensor (Diesel) . . 8W-80-48
Intake Air Temperature Sensor (Gas).... 8W-80-48
Joint Connector No. 1 (In PDC)........ 8W-80-48
Joint Connector No. 2 (In PDC)........ 8W-80-49
Joint Connector No. 3................ 8W-80-49
Joint Connector No. 4................ 8W-80-49
Joint Connector No. 5................ 8W-80-50
Joint Connector No. 6................ 8W-80-50
Joint Connector No. 7................ 8W-80-51
Joint Connector No. 8................ 8W-80-51
Junction Block C1................... 8W-80-52
Junction Block C2................... 8W-80-52
Junction Block C3................... 8W-80-52
Junction Block C4................... 8W-80-53
Junction Block C5................... 8W-80-53
Junction Block C6................... 8W-80-53
Junction Block C7................... 8W-80-53
Junction Block C8................... 8W-80-54
Junction Block C9................... 8W-80-54
Leak Detection Pump (Gas)........... 8W-80-54
Left Back-Up Lamp.................. 8W-80-54
Left Fog Lamp..................... 8W-80-54
Left Front Door Speaker (Premium)..... 8W-80-55
Left Front Door Speaker (Standard)..... 8W-80-55
Left Front Fender Lamp
(Dual Rear Wheels)................ 8W-80-55
Left Front Wheel Speed Sensor (ABS) . . . 8W-80-55
Left Headlamp..................... 8W-80-55
Left License Lamp.................. 8W-80-56
Left Outboard Clearance Lamp......... 8W-80-56
Left Outboard Headlamp............. 8W-80-56
Left Outboard Identification Lamp...... 8W-80-56
Left Park/Turn Signal Lamp........... 8W-80-56
Left Power Mirror................... 8W-80-56
Left Rear Fender Lamp
(Dual Rear Wheels)................ 8W-80-57
Left Rear Speaker (Premium 2 Door).... 8W-80-57
Left Rear Speaker (Premium 4 Door).... 8W-80-57
Left Rear Speaker (Standard 2 Door).... 8W-80-57
Left Rear Speaker (Standard 4 Door).... 8W-80-57
Left Remote Radio Switch............. 8W-80-57
8W - 80 - 2 8W-80 CONNECTOR PIN-OUTSBR/BE

Component Page
Left Speed Control Switch............ 8W-80-58
Left Tail/Stop/Turn Signal Lamp........ 8W-80-58
Left Tweeter (Premium).............. 8W-80-58
Left Visor/Vanity Lamp............... 8W-80-58
Low Note Horn..................... 8W-80-58
Manifold ABSolute Pressure Sensor
(3.9L/5.2L/5.9L)................... 8W-80-58
Manifold ABSolute Pressure Sensor
(8.0L).......................... 8W-80-59
Manifold Air Pressure Sensor (Diesel).... 8W-80-59
Multi-Function Switch............... 8W-80-59
Output Speed Sensor................ 8W-80-59
Overdrive Switch................... 8W-80-60
Overhead Console (Base).............. 8W-80-60
Overhead Console (Highline)........... 8W-80-60
Oxygen Sensor 1/1 Left Bank Up
(5.9L HD/8.0L)................... 8W-80-60
Oxygen Sensor 1/1 Left Bank Up
(California)...................... 8W-80-60
Oxygen Sensor 1/1 Upstream
(A/T Except 8.0L)................. 8W-80-61
Oxygen Sensor 1/1 Upstream
(M/T Except 8.0L)................. 8W-80-61
Oxygen Sensor 1/2 Downstream
(3.9L/5.2L)....................... 8W-80-61
Oxygen Sensor 1/2 Left Bank Down
(California)...................... 8W-80-61
Oxygen Sensor 1/2 Pre-Catalyst (8.0L) . . . 8W-80-61
Oxygen Sensor 1/3 Post Catalyst (8.0L) . . 8W-80-62
Oxygen Sensor 2/1 Right Bank Up (5.9L HD)
(5.2L/5.9L/8.0L California).......... 8W-80-62
Oxygen Sensor 2/2 Right Bank Down
(California)...................... 8W-80-62
Park/Neutral Position Switch
(A/T Except 8.0L)................. 8W-80-62
Park/Neutral Position Switch (A/T 8.0L) . . 8W-80-62
Passenger Airbag................... 8W-80-63
Passenger Airbag On/Off Switch C1..... 8W-80-63
Passenger Airbag On/Off Switch C2..... 8W-80-63
Passenger Cylinder Lock Switch........ 8W-80-63
Passenger Door Ajar Switch........... 8W-80-63
Passenger Door Lock Motor........... 8W-80-63
Passenger Door Window/Lock Switch.... 8W-80-64
Passenger Heated Seat Cushion........ 8W-80-64
Passenger Heated Seat Switch......... 8W-80-64
Passenger Lumbar Motor............. 8W-80-64
Passenger Power Seat Front Vertical Motor
(Club Cab)....................... 8W-80-64
Passenger Power Seat Horizontal Motor
(Club Cab)....................... 8W-80-65
Passenger Power Seat Rear Vertical Motor
(Club Cab)....................... 8W-80-65Component Page
Passenger Power Seat Switch
(Club Cab)....................... 8W-80-65
Passenger Power Window Motor........ 8W-80-65
Power Mirror Switch................. 8W-80-65
Power Outlet....................... 8W-80-66
Powertrain Control Module C1 (Diesel) . . . 8W-80-66
Powertrain Control Module C1 (Gas).... 8W-80-67
Powertrain Control Module C2 (Diesel) . . . 8W-80-67
Powertrain Control Module C2 (Gas).... 8W-80-68
Powertrain Control Module C3 (Diesel) . . . 8W-80-69
Powertrain Control Module C3 (Gas).... 8W-80-70
Radio C1.......................... 8W-80-70
Radio C2.......................... 8W-80-71
Radio C3.......................... 8W-80-71
Radio Choke Relay.................. 8W-80-71
Rear Wheel Speed Sensor (ABS)........ 8W-80-71
Right Back-Up Lamp................ 8W-80-71
Right Fog Lamp.................... 8W-80-72
Right Front Door Speaker (Premium).... 8W-80-72
Right Front Door Speaker (Standard).... 8W-80-72
Right Front Fender Lamp
(Dual Rear Wheels)................ 8W-80-72
Right Front Wheel Speed Sensor (ABS) . . 8W-80-72
Right Headlamp.................... 8W-80-73
Right License Lamp................. 8W-80-73
Right Outboard Clearance Lamp....... 8W-80-73
Right Outboard Headlamp............ 8W-80-73
Right Outboard Identification Lamp..... 8W-80-73
Right Park/Turn Signal Lamp.......... 8W-80-73
Right Power Mirror.................. 8W-80-74
Right Rear Fender Lamp
(Dual Rear Wheels)................ 8W-80-74
Right Rear Speaker (2 Door Premium) . . . 8W-80-74
Right Rear Speaker (4 Door Premium) . . . 8W-80-74
Right Rear Speaker (Standard 2 Door) . . . 8W-80-74
Right Rear Speaker (Standard 4 Door) . . . 8W-80-74
Right Remote Radio Switch........... 8W-80-75
Right Speed Control Switch........... 8W-80-75
Right Tail/Stop/Turn Signal Lamp...... 8W-80-75
Right Tweeter (Premium)............. 8W-80-75
Right Visor/Vanity Lamp.............. 8W-80-75
Seat Belt Switch (Club Cab)........... 8W-80-75
Seat Belt Switch (Standard Cab)....... 8W-80-76
Seat Heat Interface Module........... 8W-80-76
Speed Control Servo................. 8W-80-76
Tailgate Lamp (Dual Rear Wheels)...... 8W-80-76
Throttle Position Sensor (Gas)......... 8W-80-76
Trailer Tow Connector................ 8W-80-77
Transmission Solenoid Assembly........ 8W-80-77
Underhood Lamp................... 8W-80-77
Washer Fluid Level Switch............ 8W-80-77
Water In Fuel Sensor (Diesel).......... 8W-80-78
Wiper Motor....................... 8W-80-78
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 3

4WD SWITCH - BLACK 2
CAV CIRCUIT FUNCTION
1 G107 18BK/GY 4WD SWITCH SENSE
2 Z1 18BK GROUND
A/C COMPRESSOR CLUTCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C3 18DB/BK A/C COMPRESSOR CLUTCH RELAY OUTPUT
2 Z11 18BK/WT GROUND
A/C HEATER CONTROL - BLACK 7 WAY
CAV CIRCUIT FUNCTION
1 E2 22OR PANEL LAMPS FEED
2 C90 22LG/WT A/C SELECT INPUT
3 C4 16TN LOW SPEED BLOWER MOTOR
4 C5 16LG M1 SPEED BLOWER MOTOR
5 C6 14LB M2 SPEED BLOWER MOTOR
6 C7 12BK/TN HIGH SPEED BLOWER MOTOR
7 Z3 12BK/OR GROUND
A/C HEATER TEMPERATURE SELECT-5WAY
CAV CIRCUIT FUNCTION
1- -
2 Z2 22BK/LG GROUND
3 C82 22YL/OR TEMPERATURE SELECT
4 F15 22DB FUSED IGNITION SWITCH OUTPUT (RUN)
5- -
A/C HIGH PRESSURE SWITCH-2WAY
CAV CIRCUIT FUNCTION
1 C90 18LG/WT A/C SELECT INPUT
2 C22 18DB A/C SWITCH SENSE
8W - 80 - 4 8W-80 CONNECTOR PIN-OUTSBR/BE

A/C LOW PRESSURE SWITCH-2WAY
CAV CIRCUIT FUNCTION
1 C20 18BR A/C SWITCH SENSE
2 C22 18DB A/C SWITCH SENSE
ACCELERATOR PEDAL POSITION SENSOR (DIESEL)-6WAY
CAV CIRCUIT FUNCTION
1 K104 18BK/LB SENSOR GROUND
2 H105 18LG/DB IDLE VALIDATION SWITCH NO. 2
3 H102 18LB/BK ACCELERATOR PEDAL POSITION SENSOR SIGNAL
4 H103 18BK/YL ACCELERATOR PEDAL POSITION SENSOR GROUND
5 H101 18DB/WT ACCELERATOR PEDAL POSITION SENSOR SUPPLY
6 H104 18BR/OR IDLE VALIDATION SWITCH NO. 1
AFTERMARKET TRAILER TOW CONNECTOR-7WAY
CAV CIRCUIT FUNCTION
1 Z13 12BK GROUND
2 B40 12LB TRAILER TOW BRAKE B(+)
3 L76 12BK/OR TRAILER TOW RELAY OUTPUT
4 A6 12RD/OR FUSED B(+)
5 L63 16DG/RD LEFT TURN SIGNAL
6 L62 16BR/RD RIGHT TURN SIGNAL
7 L1 18VT/BK BACK-UP LAMP FEED
AIRBAG CONTROL MODULE - 23 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3- -
4 Z6 18BK/PK GROUND
5 R43 18BK/LB DRIVER AIRBAG SQUIB LINE 2
6 R45 18DG/LB DRIVER AIRBAG SQUIB LINE 1
7 R142 18BR/YL PASSENGER AIRBAG SQUIB LINE 1
8 R144 18VT/YL PASSENGER AIRBAG SQUIB LINE 2
9- -
10 - -
11 - -
12 - -
13 - -
14 F14 18LG/YL FUSED IGNITION SWITCH OUTPUT (RUN-START)
15 F23 18DB/YL FUSED IGNITION SWITCH OUTPUT (RUN)
16 - -
17 - -
18 - -
19 - -
20 - -
21 D1 18VT/BR CCD BUS (+)
22 D2 18WT/BK CCD BUS (-)
23 - -
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 5

AMBIENT TEMPERATURE SENSOR-2WAY
CAV CIRCUIT FUNCTION
1 G31 20VT/LG AMBIENT TEMPERATURE SENSOR SIGNAL
2 G32 20BK/VT SENSOR GROUND
ASH RECEIVER LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 E2 22OR FUSED PANEL LAMPS DIMMER SWITCH SIGNAL
2 Z3 20BK/OR GROUND
AUTOMATIC DAY/NIGHT MIRROR - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
2 Z3 20BK GROUND
3 L1 20VT/BK BACK-UP LAMP FEED
BACK-UP LAMP SWITCH (M/T) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 L1 18VT/BK BACK-UP LAMP FEED
2 L10 18BR/LG FUSED IGNITION SWITCH OUTPUT (RUN)
BATTERY TEMPERATURE SENSOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K4 20BK/LB SENSOR GROUND
2 K118 20PK/YL BATTERY TEMPERATURE SENSOR SIGNAL
BLEND DOOR ACTUATOR-6WAY
CAV CIRCUIT FUNCTION
1 F15 20DB FUSED IGNITION SWITCH OUTPUT (RUN)
2 C82 20YL/OR TEMPERATURE SELECT
3 Z2 20BK/LG GROUND
4- -
5- -
6- -
8W - 80 - 6 8W-80 CONNECTOR PIN-OUTSBR/BE

BLOWER MOTOR-2WAY
CAV CIRCUIT FUNCTION
1 C1 12DG BLOWER MOTOR FEED
2 C7 12BK/TN HIGH SPEED BLOWER MOTOR
BLOWER MOTOR RESISTOR BLOCK - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 C7 12BK/TN HIGH SPEED BLOWER MOTOR
2 C6 14LB M2 SPEED BLOWER MOTOR
3 C5 16LG M1 SPEED BLOWER MOTOR
4 C4 16TN LOW SPEED BLOWER MOTOR
BRAKE LAMP SWITCH-6WAY
CAV CIRCUIT FUNCTION
1 V40 22WT/PK BRAKE SWITCH SENSE
2 Z2 22BK/LG GROUND
3 V32 22YL/RD SPEED CONTROL SUPPLY
4 V30 22DB/RD SPEED CONTROL BRAKE SWITCH OUTPUT
5 L50 16WT/TN BRAKE LAMP SWITCH OUTPUT
6 F32 16PK/DB FUSED B(+)
BRAKE PRESSURE SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 G9 20GY/BK RED BRAKE WARNING INDICATOR DRIVER
BYPASS JUMPER (A/T) - GREEN 2 WAY
CAV CIRCUIT FUNCTION
1 T141 14YL/RD FUSED IGNITION SWITCH OUTPUT (START)
2 T141 14YL/RD FUSED IGNITION SWITCH OUTPUT (START)
C105 - (FOG LAMP JUMPER SIDE)
CAV CIRCUIT
1 L34 20RD/OR
2 L39 20LB
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 7