DODGE RAM 2003 Service Repair Manual

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Door Ajar Switch-Driver (Base) BK Left Front Door 42
Door Ajar Switch-Left Rear (Base) BK Left Rear Door 43
Door Ajar Switch-Passenger (Base) BK Right Front Door N/S
Door Ajar Switch-Right Rear (Base) BK Right Rear Door 43
Door Lock Motor/Ajar Switch-Driver
(Except Base)BK Left Front Door 42
Door Lock Motor/Ajar Switch-Left
Rear (Except Base)BK Left Rear Door 43
Door Lock Motor/Ajar Switch-
Passenger (Except Base)BK Right Front Door N/S
Door Lock Motor/Ajar Switch-Right
Rear (Except Base)BK Right Rear Door 43
Door Lock Switch-Passenger BL In Right Front Door N/S
Driver Airbag Squib BK In Steering Column N/S
Driver Blend Door Actuator (Dual
Zone)BK Right Side of HVAC N/S
Driver Door Module C1 BL In Left Front Door 42
Driver Door Module C2 BL In Left Front Door 42
Engine Control Module C1 BK Left Engine 10
Engine Control Module C2 BK Left Engine 10
Engine Coolant Temperature
SensorBK Near Generator 4, 7, 9
Engine Oil Pressure Sensor BK Lower Left Side of Engine 4, 6, 8, 9, 11
Evap/Purge Solenoid BK Left Fender Side Shield 26, 28
Evaporator Temperature Sensor BK Right Side of HVAC N/S
Fog Lamp-Left WT Left Front Facia N/S
Fog Lamp-Right WT Right Front Facia N/S
Fuel Control Actuator (Diesel) BK Left Rear Engine 23
Fuel Heater (Diesel) BK Left Side Engine 10
Fuel Injector No.1 BK At Fuel Injector 4, 8
Fuel Injector No. 2 BK At Fuel Injector 3, 7
Fuel Injector No. 3 BK At Fuel Injector 4, 8
Fuel Injector No. 4 BK At Fuel Injector 3, 7
Fuel Injector No. 5 BK At Fuel Injector 4, 8
Fuel Injector No. 6 BK At Fuel Injector 3, 7
Fuel Injector No. 7 BK At Fuel Injector 4, 8
Fuel Injector No. 8 BK At Fuel Injector 3, 7
Fuel Pump Module LT GY At Fuel Tank 48
Fuel Pump Motor (Diesel) BK Left Side Engine 10
Generator BK Front of Engine 4, 6, 7, 10
Glove Box Lamp and Switch BK At Glove Box 37, 40
Governor Pressure Sensor BK Left Rear of Transmission N/S
Headlamp Switch BK Left Side of Instrument Panel 34, 37, 39
Headlamp-Left BL At Headlamp 26, 30, 31
8W - 91 - 4 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Headlamp-Right BL At Headlamp 1, 25, 29
Heated Seat Cushion - Driver BL Under Driver Seat N/S
Heated Seat Cushion - Passenger BL Under Passenger Seat N/S
Heated Seat Switch-Driver RD Center of Instrument Panel 35, 37, 38
Heated Seat Switch-Passenger BL Center of Instrument Panel 35, 37, 38
Horn Switch WT In Steering Wheel N/S
Horn-High Note BK Left Front Fender 26, 30, 31
Horn-Low Note BK Left Front Fender 26, 31
Idle Air Control Motor BK On Throttle Body 4, 8
Ignition Coil GY Left Rear of Engine 7, 17
Ignition Coil - Left (8.0L) BK Right Side Engine 9
Ignition Coil - Right (8.0L) BK Right Side Engine 9
Ignition Switch BK Steering Column 33
Inlet Air Temperature/Manifold
Absolute Pressure SensorBK Right Side Engine 10
Input Speed Sensor BK At Transmission 14, 15
Instrument Cluster C1 GY Rear of Instrument Cluster 37
Instrument Cluster C2 GY Rear of Instrument Cluster 37
Instrument Cluster C3 WT Rear of Instrument Cluster 39
Intake Air Heater Relay Right Engine Compartment 2
Intake Air Temperature/Manifold
Absolute Temperature Sensor
(Diesel)BK Left rear Engine N/S
Intake Air Temperature Sensor BK On Intake Manifold 4, 7, 9
Integrated Power Module C1 BK Left Front Fender 29, 30
Integrated Power Module C2 WT Left Front Fender 29, 30
Integrated Power Module C3 GR Left Front Fender 29, 30
Integrated Power Module C4 WT Left Front Fender 29, 30
Integrated Power Module C5 BK Left Front Fender 29, 30
Integrated Power Module C6 BK Left Front Fender 28, 29, 30
Integrated Power Module C7 GY Left Front Fender 29, 30
Integrated Power Module FCM BK In IPM N/S
Knock Sensor BK Left Rear of Engine 5, 6, 17
Leak Detection Pump (Except 8.0L) BK Left Middle of Chassis 48
Leak Detection Pump (8.0L) BK Left Transmission 13
License Lamp-Left BK At Rear Bumper 48, 49
License Lamp-Right BK At Rear Bumper 48, 49
Lift Pump Motor BK Near T/O for WIF Sensor N/S
Line Pressure Sensor BK Right Rear of Transmission 14, 18, 19
Lumbar Motor-Driver DK GY At Driver Seat N/S
Lumbar Motor-Passenger BK At Passenger Seat N/S
Manifold Absolute Pressure Sensor
(4.7L)GY Left Front of Intake Manifold 4
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Manifold Absolute Pressure Sensor
(5.9L)BK Left Front of Intake Manifold 8
Mode Door Actuator 1 BK Right Side of HVAC N/S
Mode Door Actuator 2 BK Right Side of HVAC N/S
Multi-Function Switch BK On Steering Column N/S
Natural Vacuum Leak Detection
AssemblyBK Rear of Transmission 18, 19
Output Speed Sensor DB Left Side of Transmission 11, 12, 14, 15
Overdrive Switch WT Center of Instrument Panel 37
Overhead Map/Reading Lamp
(Except Base)NAT Center of Headliner N/S
Oxygen Sensor 1/1 Upstream BK Left Front of Side of Transmission 11, 12, 14, 16
Oxygen Sensor 1/2 Downstream NAT Left Rear of Side of Transmission 11, 14, 16
Oxygen Sensor 2/1 Upstream BK Right Front Side of Transmission 11, 12, 14, 16, 17, 18,
19
Oxygen Sensor 2/2 Downstream BK Right Rear Side of Transmission 11, 12, 14, 16, 17, 18,
19
Park Brake Switch At Park Brake 26, 27
Park/Turn Signal Lamp-Left Front BK At Lamp 26, 30, 31
Park/Turn Signal Lamp-Right Front BK At Lamp 1, 25, 29
Passenger Airbag On/Off Switch Right Side of Instrument Panel 35, 37, 40
Passenger Blend Door Actuator
(Dual Zone)BK Right Side of HVAC N/S
Passenger Lumbar Switch At Passenger Seat N/S
Power Mirror-Left BK At Mirror 42
Power Mirror-Right BK At Mirror N/S
Power Outlet RD Center of Instrument Panel 37
Power Outlet-Console BK Center of Instrument Panel N/S
Power Seat Motor-Driver Front
VerticalRD At Driver Seat N/S
Power Seat Motor-Driver Horizontal BK At Driver Seat N/S
Power Seat Motor-Driver Rear
VerticalBK At Driver Seat N/S
Power Seat Switch-Driver BK At Driver Seat N/S
Power Seat Switch-Passenger BK At Passenger Seat N/S
Power Steering Pressure Switch BK Near Power Steering Pump 4, 5
Power Window Circuit Breaker Under Instrument Panel 33, 37, 39
Power Window Motor-Driver BK In Driver Door at Motor 42
Power Window Motor-Left Rear BK In Door at Motor 43
Power Window Motor-Passenger BK In Passenger Door at Motor N/S
Power Window Motor-Right Rear BK In Door at Motor 43
Power Window Switch-Left Rear BL In Door 43
Power Window Switch-Right Rear BL In Door 43
Powertrain Control Module C1 BK Right Rear Engine Compartment 21, 22, 23, 24
8W - 91 - 6 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Powertrain Control Module C2 WT Right Rear Engine Compartment 21, 22, 23, 24
Powertrain Control Module C3 GY Right Rear Engine Compartment 21, 22, 23, 24
Powertrain Control Module C4 GN Right Rear Engine Compartment 21
PTO Sense Near G107 21, 22, 24
Radio (Base) GY Rear of Radio 37, 38
Radio (Premium) BK Rear of Radio 37, 38
Recirculation Door Actuator BK Right Side of HVAC N/S
Red Brake Warning Indicator
SwitchBK Near Master Cylinder 26, 28, 31
Remote Radio Switch-Left BK At Steering Wheel N/S
Remote Radio Switch-Right BK At Steering Wheel N/S
Seat Belt Pretensioner-Left YL Left B-Pillar 44, 45
Seat Belt Pretensioner-Right YL Right B-Pillar N/S
Seat Belt Switch-Driver DK GY Left B-Pillar N/S
Seat Belt Tension Reducer
(Standard Cab)YL Left B-Pillar 44
Seat Heater Interface Module GN Under Driver Seat N/S
Sentry Key Immobilizer Module BK On Steering Column 32
Side Marker - Left Front (Dual
Wheels)BK Front of Left Rear Fender 50
Side Marker - Left Rear (Dual
Wheels)BK Rear of Left Rear Fender 50
Side Marker - Right Front (Dual
Wheels)BK Front of Right Rear Fender 50
Side Marker - Right Rear (Dual
Wheels)BK Rear of Right Rear Fender 50
Speaker-Center Instrument Panel WT Center of Instrument Panel 37, 38
Speaker-Left Front Door WT In Left Front Door 42
Speaker-Left Instrument Panel BK Left Side of Instrument Panel 37, 39
Speaker-Left Rear (Standard Cab) WT In Lower Left B-Pillar 44
Speaker-Left Rear Door (Quad
Cab)WT In Left Rear Door 43
Speaker-Right Front Door WT In Right Front Door N/S
Speaker-Right Instrument Panel BK Right Side of Instrument Panel 37, 40
Speaker-Right Rear (Standard
Cab)BK In Lower Right B-Pillar N/S
Speaker-Right Rear Door (Quad
Cab)BK In Right Rear Door 43
Speed Control Servo BK Left Front Side of Engine
Compartment26, 28
Speed Control Switch - Left
(Except ETC)GN Steering Wheel N/S
Speed Control Switch - Right
(Except ETC)GN Steering Wheel N/S
Speed Control Switch-Left (ETC) WT At Steering Wheel N/S
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 7
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Speed Control Switch-Right (ETC) WT At Steering Wheel N/S
Tail/Stop/Turn Signal Lamp-Left BK At Lamp N/S
Tail/Stop/Turn Signal Lamp-Right BK At Lamp N/S
Throttle Position Sensor NAT Throttle Body 4, 8
Trailer Tow Connector BK At Trailer Hitch 49
Trailer Tow Connector-Add On BK At Trailer Hitch 49, 51
Transfer Case Control Module C1 BK Left Side of Instrument Panel 37, 39
Transfer Case Control Module C2 GY Left Side of Instrument Panel 37, 39
Transfer Case Control Module C3 BK Left Side of Instrument Panel 37, 39
Transfer Case Mode Sensor BK Left Front Side of Transfer Case 20
Transfer Case Position Sensor BK Front Middle of Transfer Case 14, 15, 16, 20
Transfer Case Selector Switch BK Center of Instrument Panel 35, 37, 38
Transfer Case Shift Motor BK Left Rear of Transmission 20
Transmission Control Module BK Left Rear of Engine Compartment 21
Transmission Range Sensor BK Left side of Transmission 11, 12
Transmission Solenoid Assembly BK Left Side of Transmission 11, 12
Transmission Solenoid/TRS
Assembly (3.7L/4.7L)BK Left Side of Transmission 14, 15
Underhood Lamp BK Underside of Hood 31
Vistronic Fan Drive Front Engine Compartment 30
Washer Fluid Level Switch BK At Reservoir 25, 29, 30
Washer Pump Motor-Front BK At Washer Fluid Reservoir 25, 29, 30
Water In Fuel Sensor (Diesel) BK Right Side Engine 10
Wheel Speed Sensor-Left Front BK Left Rear Lower Side of Engine
Compartment26, 31
Wheel Speed Sensor-Rear BK Right Rear of Body 49
Wheel Speed Sensor-Right Front GY Right Rear Lower Side of Engine
Compartment25
Wiper Motor-Front BK Left Side of Cowl 26, 28
8W - 91 - 8 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

GROUNDS
GROUND
NUMBERLOCATION FIG.
G100 Left Front Engine N/S
G101 Left Front Engine N/S
G102 Left Front Chassis N/S
G103 Left Front Engine Compartment 26
G104 Left Front Engine Compartment 26
G105 Right Front Chassis 25
G106 Left Rear Engine Compartment 26, 31
G107 Right Rear Engine Compartment 10, 21, 22, 24
G201 Right Side of Instrument Panel 39
G202 Center of Instrument Panel 37, 38
G203 Center of Instrument Panel 37, 38
G204 Right Side of Instrument Panel 37
G301 Left Front Body 41, 44, 45
G302 Left Front Body 41, 44, 45
SPLICES
SPLICE
NUMBERLOCATION FIG.
S101 Left Front Fender 25
S102 Left Front Fender 26
S103 Left Rear of Engine Compartment 26
S104 Front Facia N/S
S105 Front Facia N/S
S106 Left Rear of Engine Compartment 26
S107 Left Front Fender 26
S108 Headlamp and Dash, Left Side 26, 28
S109 Left Front Fender 26, 28, 29
S110 Left Front Fender 26
S111 Center Rear of Engine Compartment 22, 24
S114 Left Rear of Engine Compartment 26, 27, 28
S115 Left Rear of Engine Compartment 26, 28, 31
S117 Left Rear of Engine Compartment N/S
S118 Right Rear Engine Compartment 21
S119 Left Rear of Engine Compartment N/S
S120 Left Front Fender 26
S121 Left Front Fender 23, 26
S122 Left Front Fender 26
S123 Left Front Fender 12, 26
S124 Center Rear of Engine Compartment 9, 11, 12, 23
S125 Center Rear of Engine Compartment 21, 23
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 9
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPLICE
NUMBERLOCATION FIG.
S126 Center Rear of Engine Compartment N/S
S128 Right Rear of Engine 3, 22
S129 Top Front of Transmission 3, 23
S130 Top Front of Transmission 3, 8, 9, 12, 14, 16, 17,
21, 22, 24
S131 Left Rear of Engine Compartment 22
S132 Left Rear of Engine Compartment 21, 22, 24
S133 Left Rear of Engine 11, 22
S134 Left Rear of Engine Compartment 15
S135 Headlamp and Dash, Left Side 26
S136 Left Front Fender 21, 29
S137 Left Rear of Engine Compartment 21
S138 Left Rear of Engine 3, 11
S139 Right Front of Transmission 14, 16, 17, 24
S141 Right Rear of Engine 3
S142 Left Side of Engine 22
S143 Left Side of Engine Compartment 21
S144 Top Front of Transmission 3, 14, 16, 17, 23, 24
S145 Left Front Fender 26
S146 Left Front Fender 26
S147 Right Rear of Engine 7
S148 Top Front of Transmission 3, 14, 16, 17, 22, 23,
24
S149 Left Rear of Engine 3, 4, 14
S150 Top Center of Engine 3, 5, 8
S153 Rear Engine Compartment 22
S154 Left Top Engine 5, 22
S155 Left Rear Engine Compartment near T/O for Fuel Control Actuator N/S
S156 Left Rear Engine Compartment 23
S157 Near T/O for Camshaft Position Sensor N/S
S158 Near T/O for C114 10
S159 Near T/O for Engine Control Module N/S
S160 Top Left Engine 10
S170 Left Engine 10
S171 Top Left Engine 10
S172 In T/O for Fuel Control Actuator N/S
S173 Near T/O for Engine Control Module N/S
S174 Near T/O for C114 N/S
S175 Near T/O for Engine Control Module N/S
S176 Left Side Engine Near T/O for Fuel Control Actuator N/S
S181 Top of Transmission 12
S182 Top of Transmission 12
8W - 91 - 10 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPLICE
NUMBERLOCATION FIG.
S183 Top of Transmission 12
S184 Top of Transmission 12
S191 Near Integrated Power Module 29
S197 Left Rear Engine Compartment 23
S201 Left Side of Instrument Panel 37
S204 Left Side of Instrument Panel 37
S205 Left Side of Instrument Panel 39
S206 At Steering Column N/S
S207 At Steering Column N/S
S208 Center of Instrument Panel 37, 38
S209 Center of Instrument Panel 37
S210 Center of Instrument Panel 39
S212 Left Side of Instrument Panel 33, 39
S213 Center of Instrument Panel in T/O for Instrument Cluster
ConnectorsN/S
S214 Left Side of Instrument Panel 33, 39
S216 Center of Instrument Panel 37
S217 Left Side of Instrument Panel 37, 40
S218 Left Side of Instrument Panel 39
S219 Center of Instrument Panel N/S
S220 Center of Instrument Panel N/S
S221 Center of Instrument Panel 37, 38
S222 Center of Instrument Panel 37
S224 Right Side of HVAC N/S
S225 Center of Instrument Panel 37
S226 Right Side of HVAC N/S
S230 Right Instrument Panel 37
S231 Left Instrument Panel 39
S301 Center of Headliner N/S
S302 Center of Headliner N/S
S304 Center of Headliner N/S
S305 Center of Body 44, 45
S306 Left Side of Frame N/S
S307 Center of Headliner N/S
S308 Left Rear Chassis 48, 49
S309 Center Rear of Chassis 49
S310 Center of Body 44, 45
S311 Left Front of Body 41, 44, 45
S312 Right Door N/S
S313 Left Front Door 42
S314 Left Rear Frame Rail N/S
S315 Left Front Body 41, 44, 45
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 11
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPLICE
NUMBERLOCATION FIG.
S316 At Driver Seat N/S
S317 At Passenger Seat N/S
S318 At Passenger Seat N/S
S319 Left Front Door 42
S320 Center of Body 44
S321 Left Front Body N/S
S322 Left Front Body N/S
S323 Left Front Body 45
S324 Left Rear Chassis 48, 49
S325 Left Rear Chassis 48, 49
S326 Left Rear Chassis 48, 49
S327 Left Rear Chassis 48, 49
S328 At Driver Seat N/S
S329 At Driver Seat N/S
S330 Center Rear of Chassis 49
S331 Center Rear of Chassis 49
S332 Left Front Door 42
S333 Left Front Body 45
S334 Left Front Body 41, 44, 45
S335 Left Front Body 41, 44, 45
S338 Left Rear Fender 50
S339 Left Rear Fender 50
8W - 91 - 12 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

Fig. 1 RIGHT SIDE FRONT LIGHTING
Fig. 2 LEFT FRONT BUMPER AND RIGHT BATTERY TRAY
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 13
CONNECTOR/GROUND/SPLICE LOCATION (Continued)