clock DODGE RAM 2003 Service Service Manual

8W-33 VEHICLE SPEED CONTROL
Component Page
Brake Lamp Switch................ 8W-33-2, 6
Center High Mounted Stop Lamp-
Aftermarket...................... 8W-33-6
Center High Mounted Stop Lamp/Cargo
Lamp........................... 8W-33-6
Clockspring....................... 8W-33-3, 4
Controller Antilock Brake.............. 8W-33-6
Electric Brake Provision............... 8W-33-6
Fuse 24............................ 8W-33-6Component Page
G104.............................. 8W-33-2
G201.............................. 8W-33-6
Instrument Cluster................... 8W-33-6
Integrated Power Module.............. 8W-33-6
Powertrain Control Module........ 8W-33-2, 5, 6
Speed Control Servo.................. 8W-33-2
Speed Control Switch-Left........... 8W-33-3, 4
Speed Control Switch-Right.......... 8W-33-3, 4
DR8W-33 VEHICLE SPEED CONTROL 8W - 33 - 1

8W-40 INSTRUMENT CLUSTER
Component Page
A/C-Heater Control.................. 8W-40-11
Brake Transmission Shift Interlock
Solenoid........................ 8W-40-10
Center High Mounted Stop Lamp/Cargo
Lamp........................ 8W-40-5, 11
Clockspring..................... 8W-40-10, 13
Cylinder Lock Switch- Driver........... 8W-40-6
Cylinder Lock Switch- Passenger........ 8W-40-6
Data Link Connector................. 8W-40-5
Dome Lamp....................... 8W-40-11
Door Ajar Switch-Driver.............. 8W-40-12
Door Ajar Switch-Left Rear........... 8W-40-12
Door Ajar Switch-Passenger........... 8W-40-12
Door Ajar Switch-Right Rear.......... 8W-40-12
Door Lock Motor/Ajar Switch-Driver..... 8W-40-7
Door Lock Motor/Ajar Switch-Left Rear . . . 8W-40-7
Door Lock Motor/Ajar Switch-
Passenger...................... 8W-40-6, 8
Door Lock Motor/Ajar Switch-
Right Rear..................... 8W-40-7, 8
Door Lock Switch-Passenger........... 8W-40-6
Driver Door Module.................. 8W-40-8
Fog Lamp Relay..................... 8W-40-3
Fog Lamp-Left...................... 8W-40-3
Fog Lamp-Right..................... 8W-40-3
Fuse 18............................ 8W-40-5
Fuse 22............................ 8W-40-5Component Page
Fuse 41............................ 8W-40-3
G201........................... 8W-40-3, 11
G202............................. 8W-40-10
G301....................... 8W-40-2, 6, 7, 12
Glove Box Lamp And Switch.......... 8W-40-11
Headlamp Switch.................... 8W-40-3
Heated Seat Switch- Driver......... 8W-40-8, 11
Heated Seat Switch- Passenger...... 8W-40-8, 11
Horn Switch....................... 8W-40-13
Ignition Switch................... 8W-40-5, 13
Instrument Cluster........ 8W-40-2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13
Integrated Power Module........ 8W-40-2, 3, 5, 9
Multi-Function Switch................ 8W-40-4
Park Brake Switch.................. 8W-40-13
Powertrain Control Module........... 8W-40-13
PTCNo.2........................ 8W-40-2, 9
Radio.......................... 8W-40-9, 11
Remote Radio Switch-Left............ 8W-40-10
Remote Radio Switch-Right........... 8W-40-10
Seat Belt Switch-Driver............... 8W-40-2
Seat Belt Tensioner Reducer........... 8W-40-2
Transfer Case Selector Switch......... 8W-40-13
Transmission Control Module.......... 8W-40-13
Transmission Range Sensor............ 8W-40-5
DR8W-40 INSTRUMENT CLUSTER 8W - 40 - 1

8W-41 HORN/CIGAR LIGHTER/POWER OUTLET
Component Page
Cigar Lighter Outlet.................. 8W-41-3
Clockspring........................ 8W-41-4
Data Link Connector................. 8W-41-2
Front Control Module................. 8W-41-2
Fuse 25............................ 8W-41-3
Fuse 29............................ 8W-41-3
Fuse 42............................ 8W-41-3
Fuse 45............................ 8W-41-2
G106.............................. 8W-41-2
G203.............................. 8W-41-3Component Page
G302.............................. 8W-41-4
Horn Relay......................... 8W-41-2
Horn Switch........................ 8W-41-4
Horn-High Note..................... 8W-41-2
Horn-Low Note...................... 8W-41-2
Instrument Cluster................... 8W-41-4
Integrated Power Module............ 8W-41-2, 3
Power Outlet....................... 8W-41-3
Power Outlet-Console............... 8W-41-3, 4
DR8W-41 HORN/CIGAR LIGHTER/POWER OUTLET 8W - 41 - 1

8W-43 AIRBAG SYSTEM
Component Page
Airbag Control Module.............. 8W-43-2, 3
Airbag Control Module-Left Side Impact . . 8W-43-4
Airbag Control Module-Right Side Impact . 8W-43-4
Airbag-Driver....................... 8W-43-3
Airbag-Left Curtain.................. 8W-43-4
Airbag-Passenger.................... 8W-43-3
Airbag-Right Curtain................. 8W-43-4
Clockspring........................ 8W-43-3
Data Link Connector............... 8W-43-2, 4Component Page
Fuse 52............................ 8W-43-2
Fuse 53.......................... 8W-43-2, 4
G204............................ 8W-43-2, 4
Integrated Power Module............ 8W-43-2, 4
Passenger Airbag On/Off Switch......... 8W-43-2
Seat Belt Pretensioner-Left............ 8W-43-3
Seat Belt Pretensioner-Right........... 8W-43-3
DR8W-43 AIRBAG SYSTEM 8W - 43 - 1

8W-47 AUDIO SYSTEM
Component Page
Amplifier Audio................... 8W-47-4, 5
Clockspring........................ 8W-47-7
Data Link Connector............... 8W-47-2, 5
Fuse 21............................ 8W-47-5
G201.............................. 8W-47-7
G202............................ 8W-47-2, 5
Instrument Cluster................. 8W-47-2, 7
Integrated Power Module.............. 8W-47-5
Radio....................... 8W-47-2, 3, 4, 7
Remote Radio Switch-Left............. 8W-47-7Component Page
Remote Radio Switch-Right............ 8W-47-7
Speaker-Center Instrument Panel....... 8W-47-4
Speaker-Left Front Door............. 8W-47-3, 6
Speaker-Left Instrument Panel......... 8W-47-4
Speaker-Left Rear................. 8W-47-3, 6
Speaker-Right Front Door........... 8W-47-3, 6
Speaker-Right Instrument Panel........ 8W-47-4
Speaker-Right Rear................ 8W-47-3, 6
DR8W-47 AUDIO SYSTEM 8W - 47 - 1

Component Page
C317............................. 8W-80-40
C319............................. 8W-80-40
C319............................. 8W-80-40
C322............................. 8W-80-40
C322............................. 8W-80-41
C323............................. 8W-80-41
C323............................. 8W-80-41
C327............................. 8W-80-42
C327............................. 8W-80-42
C328............................. 8W-80-42
C328............................. 8W-80-42
Camshaft Position Sensor (Diesel)...... 8W-80-42
Camshaft Position Sensor (Gas)........ 8W-80-42
Capacitor......................... 8W-80-43
Center High Mounted Stop Lamp/Cargo
Lamp.......................... 8W-80-43
Cigar Lighter Outlet................. 8W-80-43
Clearance Lamp No. 1 (Heavy Duty).... 8W-80-43
Clearance Lamp No. 2 (Heavy Duty).... 8W-80-43
Clearance Lamp No. 3 (Heavy Duty).... 8W-80-44
Clearance Lamp No. 4 (Heavy Duty).... 8W-80-44
Clearance Lamp No. 5 (Heavy Duty).... 8W-80-44
Clockspring C1..................... 8W-80-44
Clockspring C2..................... 8W-80-44
Clockspring C3..................... 8W-80-45
Clockspring C4..................... 8W-80-45
Clockspring C5 (Remote Radio)........ 8W-80-45
Clutch Interlock Brake Switch......... 8W-80-45
Coil On Plug No. 1 (3.7L/4.7L/5.7L)..... 8W-80-45
Coil On Plug No. 2 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 3 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 4 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 5 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 6 (3.7L/4.7L/5.7L)..... 8W-80-47
Coil On Plug No. 7 (4.7L/5.7L)......... 8W-80-47
Coil On Plug No. 8 (4.7L/5.7L)......... 8W-80-47
Compass/Mini-Trip Computer
(Except Base).................... 8W-80-47
Condenser Fan..................... 8W-80-48
Controller Antilock Brake C1.......... 8W-80-48
Controller Antilock Brake C2 (ABS)..... 8W-80-48
Crankshaft Position Sensor........... 8W-80-49
Cylinder Lock Switch-Driver (Premium) . . 8W-80-49
Cylinder Lock Switch-Passenger
(Premium)...................... 8W-80-49
Data Link Connector................ 8W-80-49
Data Link Connector................ 8W-80-50
Dome Lamp....................... 8W-80-50
Door Ajar Switch-Driver (Base)........ 8W-80-50
Door Ajar Switch-Left Rear (Base)...... 8W-80-50
Door Ajar Switch-Passenger (Base)...... 8W-80-50
Door Ajar Switch-Right Rear (Base)..... 8W-80-51
Door Lock Motor/Ajar Switch-Driver
(Except Base).................... 8W-80-51Component Page
Door Lock Motor/Ajar Switch-Left Rear
(Except Base).................... 8W-80-51
Door Lock Motor/Ajar Switch-Passenger
(Except Base).................... 8W-80-51
Door Lock Motor/Ajar Switch-Right Rear
(Except Base).................... 8W-80-52
Door Lock Switch-Passenger........... 8W-80-52
Door Window/Lock Switch............ 8W-80-52
Driver Blend Door Actuator
(Dual-Zone)...................... 8W-80-52
Driver Door Module C1.............. 8W-80-53
Driver Door Module C2.............. 8W-80-53
Driver Heated Seat Cushion........... 8W-80-53
Electric Brake Provision.............. 8W-80-53
Electronic Throttle Control Module
(5.7L).......................... 8W-80-54
Engine Control Module............... 8W-80-54
Engine Control Module............... 8W-80-55
Engine Coolant Temperature Sensor
(3.7L/4.7L/5.7L).................. 8W-80-56
Engine Coolant Temperature Sensor
(Diesel)......................... 8W-80-56
Engine Oil Pressure Switch........... 8W-80-57
Evap/Purge Solenoid (Except NGC)..... 8W-80-57
Evap/Purge Solenoid (NGC)........... 8W-80-57
Evaporator Temperature Sensor........ 8W-80-57
Fender Lamp-Front Left.............. 8W-80-58
Fender Lamp-Front Right............ 8W-80-58
Fender Lamp-Rear Left.............. 8W-80-58
Fender Lamp-Rear Right............. 8W-80-58
Fog Lamp-Left..................... 8W-80-58
Fog Lamp-Right.................... 8W-80-59
Fuel Control Actuator (Diesel)......... 8W-80-59
Fuel Heater (Diesel)................. 8W-80-59
Fuel Injector No. 1 (Diesel)............ 8W-80-59
Fuel Injector No. 1.................. 8W-80-59
Fuel Injector No. 2 (Diesel)............ 8W-80-60
Fuel Injector No. 2.................. 8W-80-60
Fuel Injector No. 3 (Diesel)............ 8W-80-60
Fuel Injector No. 3.................. 8W-80-60
Fuel Injector No. 4 (Diesel)............ 8W-80-60
Fuel Injector No. 4.................. 8W-80-61
Fuel Injector No. 5 (Diesel)............ 8W-80-61
Fuel Injector No. 5.................. 8W-80-61
Fuel Injector No. 6 (Diesel)............ 8W-80-61
Fuel Injector No. 6.................. 8W-80-61
Fuel Injector No. 7
(4.7L/5.7L/5.9L/8.0L)............... 8W-80-62
Fuel Injector No. 8
(4.7L/5.7L/5.9L/8.0L)............... 8W-80-62
Fuel Injector No. 9 (8.0L)............. 8W-80-62
Fuel Injector No. 10 (8.0L)............ 8W-80-62
Fuel Pump Module.................. 8W-80-63
Fuel Pump Motor (Diesel)............ 8W-80-63
Generator......................... 8W-80-63
8W - 80 - 2 8W-80 CONNECTOR PIN-OUTSDR

CLEARANCE LAMP NO. 3 (HEAVY DUTY)-2WAY
CAV CIRCUIT FUNCTION
1 L7 20BK/YL HEADLAMP SWITCH OUTPUT
2 Z253 20BK/RD GROUND
CLEARANCE LAMP NO. 4 (HEAVY DUTY)-2WAY
CAV CIRCUIT FUNCTION
1 L7 20BK/YL HEADLAMP SWITCH OUTPUT
2 Z253 20BK/RD GROUND
CLEARANCE LAMP NO. 5 (HEAVY DUTY)-2WAY
CAV CIRCUIT FUNCTION
1 L7 20BK/YL HEADLAMP SWITCH OUTPUT
2 Z253 20BK/RD GROUND
CLOCKSPRING C1-6WAY
CAV CIRCUIT FUNCTION
1 Z5 20BK/LB GROUND
2 X20 20GY/WT RADIO CONTROL MUX
3 V38 20VT/OR (5.7L) S/C SWITCH SIGNAL NO.2
4 V37 20RD/LG SPEED CONTROL SWITCH SIGNAL
5 K4 20BK/LB SENSOR GROUND
6 X3 20BK/RD HORN SWITCH SENSE
CLOCKSPRING C2 - YELLOW 4 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 R43 18BK/LB DRIVER SQUIB 1 LINE 1
4 R45 18DG/LB DRIVER SQUIB 1 LINE 2
8W - 80 - 44 8W-80 CONNECTOR PIN-OUTSDR

CLOCKSPRING C3 - BLACK 4 WAY
CAV CIRCUIT FUNCTION
B1 X3 20BK/RD HORN RELAY CONTROL
B2 K4 20BK/LB SENSOR GROUND
B3 V37 20RD/LG S/C SWITCH NO.1 SIGNAL
B4 V38 20VT/OR (ELECTRONIC
TRANSMISSION CONTROL)SPEED CONTROL RELAY CONTROL
CLOCKSPRING C4-2WAY
CAV CIRCUIT FUNCTION
1- -
2 Z374 20BK/WT GROUND
CLOCKSPRING C5 (REMOTE RADIO) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z5 22BK/LB GROUND
2 X20 22GY (WITHOUT ETC) RADIO CONTROL MUX
2 X20 22RD/BK (WITH ETC) RADIO CONTROL MUX
CLUTCH INTERLOCK BRAKE SWITCH - DK GREEN 2 WAY
CAV CIRCUIT FUNCTION
1 T24 20BR/YL PARK/NEUTRAL POSITION SWITCH SENSE (T41)
2 Z248 20BK GROUND
COIL ON PLUG NO. 1 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K91 18TN/RD COIL ON PLUG DRIVER NO. 1
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K91 18TN/RD (NGC) COIL CONTROL NO. 1
3- -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 45

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
C317 BK At Passenger Seat N/S
C319 BK Bottom Left of Left Door N/S
C322 DK GY Left Rear of Frame N/S
C323 BK Left Side of Instrument Panel N/S
C327 BK Right Rear Fender 48, 49
C328 BK Left Rear Fender 48, 49, 50
Camshaft Position Sensor GY Right Front Side of Engine 3, 6, 8, 9
Capacitor Left Rear of Engine Compartment N/S
Center High Mounted Stop
Lamp/Cargo LampBK Rear of Cab 47
Cigar Lighter Outlet NAT Rear of Cigar Lighter 34, 37, 38
Clearance Lamp No. 1 BK Left Roof 46
Clearance Lamp No. 2 BK Left-Center Roof 46
Clearance Lamp No. 3 BK Center Roof 46
Clearance Lamp No. 4 BK Right-Center Roof 46
Clearance Lamp No. 5 BK Right Roof 46
Clockspring C1 BK Steering Column 33
Clockspring C2 YL Steering Column 33
Clockspring C3 BK Steering Column N/S
Clockspring C4 BK Steering Column N/S
Clutch Interlock Brake Switch BK At Clutch Pedal 26, 27
Coil On Plug No.1 BK Left Top Side of Intake Manifold 4
Coil On Plug No.2 BK Right Top Side of Intake Manifold 3
Coil On Plug No.3 BK Left Top Side of Intake Manifold 4
Coil On Plug No.4 BK Right Top Side of Intake Manifold 3
Coil On Plug No.5 BK Left Top Side of Intake Manifold 4
Coil On Plug No.6 BK Right Top Side of Intake Manifold 3
Coil On Plug No.7 BK Left Top Side of Intake Manifold 4
Coil On Plug No.8 BK Right Top Side of Intake Manifold 3
Compass/Mini-Trip Computer BK In Overhead Console N/S
Condenser Fan BK Near Condenser 26, 27
Controller Anti-Lock Brake C1 BK Left Fender Side Shield 26, 27, 28
Controller Anti-Lock Brake C2
(ABS)BK Left Fender Side Shield 26, 28
Crankshaft Position Sensor BK Right Rear of Engine Block 3, 6, 8, 9
Cylinder Lock Switch-Driver
(Premium)BK In Left Front Door 42
Cylinder Lock Switch-Passenger
(Premium)LT GY In Right Front Door N/S
Data Link Connector BK Left Bottom of Instrument Panel 37, 39
Data Link Connector - Engine
(Diesel)BK Near T/O for Water In Fuel Sensor N/S
Dome Lamp BK Center of Headliner N/S
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 3
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

²Excessive steam (white smoke) emitting from
exhaust
²Coolant foaming
CYLINDER-TO-CYLINDER LEAKAGE TEST
To determine if an engine cylinder head gasket is
leaking between adjacent cylinders, follow the proce-
dures in Cylinder Compression Pressure Test (Refer
to 9 - ENGINE - DIAGNOSIS AND TESTING). An
engine cylinder head gasket leaking between adja-
cent cylinders will result in approximately a 50±70%
reduction in compression pressure.
CYLINDER-TO-WATER JACKET LEAKAGE TEST
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING WITH COOLANT PRES-
SURE CAP REMOVED.
VISUAL TEST METHOD
With the engine cool, remove the coolant pressure
cap. Start the engine and allow it to warm up until
thermostat opens.
If a large combustion/compression pressure leak
exists, bubbles will be visible in the coolant.
COOLING SYSTEM TESTER METHOD
WARNING: WITH COOLING SYSTEM TESTER IN
PLACE, PRESSURE WILL BUILD UP FAST. EXCES-
SIVE PRESSURE BUILT UP, BY CONTINUOUS
ENGINE OPERATION, MUST BE RELEASED TO A
SAFE PRESSURE POINT. NEVER PERMIT PRES-
SURE TO EXCEED 138 kPa (20 psi).
Install Cooling System Tester 7700 or equivalent to
pressure cap neck. Start the engine and observe the
tester's pressure gauge. If gauge pulsates with every
power stroke of a cylinder a combustion pressure
leak is evident.
CHEMICAL TEST METHOD
Combustion leaks into the cooling system can also
be checked by using Bloc-Chek Kit C-3685-A or
equivalent. Perform test following the procedures
supplied with the tool kit.
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Raise the vehicle on a hoist.
(3) Disconnect the exhaust pipe at the left side
exhaust manifold.
(4) Drain the engine coolant(Refer to 7 - COOL-
ING - STANDARD PROCEDURE).
(5) Lower the vehicle.(6) Remove the intake manifold(Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
REMOVAL).
(7) Remove the master cylinder and booster assem-
bly(Refer to 5 - BRAKES/HYDRAULIC/MECHANI-
CAL/POWER BRAKE BOOSTER - REMOVAL).
(8) Remove the cylinder head cover(Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - REMOVAL).
(9) Remove the fan shroud and fan blade assem-
bly(Refer to 7 - COOLING/ENGINE/RADIATOR FAN
- REMOVAL).
(10) Remove accessory drive belt(Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(11) Remove the power steering pump and set
aside.
(12) Rotate the crankshaft until the damper tim-
ing mark is aligned with TDC indicator mark (Fig.
5).
(13) Verify the V6 mark on the camshaft sprocket
is at the 12 o'clock position (Fig. 6). Rotate the crank-
shaft one turn if necessary.
(14) Remove the crankshaft damper(Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL).
(15) Remove the timing chain cover(Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL).
Fig. 5 Engine Top Dead Center
1 - TIMING CHAIN COVER
2 - CRANKSHAFT TIMING MARKS
DRENGINE - 3.7L 9 - 21
CYLINDER HEAD - LEFT (Continued)