Rear seat DODGE RAM 1500 1998 2.G Workshop Manual

POWER SEAT MOTOR-DRIVER HORIZONTAL-2WAY
CAV CIRCUIT FUNCTION
1 P17 12LG/DG DRIVER SEAT HORIZONTAL FORWARD DRIVER
2 P15 12LG/BR DRIVER SEAT HORIZONTAL REARWARD DRIVER
POWER SEAT MOTOR-DRIVER REAR VERTICAL-2WAY
CAV CIRCUIT FUNCTION
1 P13 12LG/OR DRIVER SEAT REAR DOWN
2 P11 12LG/YL LEFT SEAT REAR UP
POWER SEAT MOTOR-PASSENGER FRONT VERTICAL-2WAY
CAV CIRCUIT FUNCTION
1 P20 12LG/LB RIGHT SEAT FRONT UP
2 P18 12LG/DG RIGHT SEAT FRONT DOWN
POWER SEAT MOTOR-PASSENGER HORIZONTAL-2WAY
CAV CIRCUIT FUNCTION
1 P16 12LG/BR RIGHT SEAT HORIZONTAL REARWARD
2 P14 12LG/OR RIGHT SEAT HORIZONTAL FORWARD
POWER SEAT MOTOR-PASSENGER REAR VERTICAL-2WAY
CAV CIRCUIT FUNCTION
1 P12 12LG/YL RIGHT SEAT REAR UP
2 P10 12LG/TN RIGHT SEAT REAR DOWN
8W - 80 - 84 8W-80 CONNECTOR PIN-OUTSDR

POWER SEAT SWITCH-DRIVER - 12 WAY
CAV CIRCUIT FUNCTION
A A210 12OR/RD FUSED B(+)
B Z939 14BK GROUND
C P105 12LG LUMBAR MOTOR FORWARD
D P13 12LG/OR DRIVER SEAT REAR DOWN
E P107 12LG/WT LUMBAR MOTOR REARWARD
F Z939 14BK GROUND
G A210 12OR/RD FUSED B(+)
H P11 12LG/YL LEFT SEAT REAR UP
I P17 12LG/DG DRIVER SEAT HORIZONTAL FORWARD DRIVER
J P15 12LG/BR DRIVER SEAT HORIZONTAL REARWARD DRIVER
K P21 12LG/TN LEFT SEAT FRONT DOWN
L P19 12LG/LB LEFT SEAT FRONT UP
POWER SEAT SWITCH-PASSENGER - 12 WAY
CAV CIRCUIT FUNCTION
A A210 12OR/RD FUSED B(+)
B Z939 14BK GROUND
C P106 12LG/WT RIGHT SEAT REAR UP
D P10 12LG/TN RIGHT SEAT REAR DOWN
E P104 12LG LUMBAR MOTOR FORWARD
F Z939 14BK GROUND
G A210 12OR/RD FUSED B(+)
H P12 12LG/YL RIGHT SEAT REAR UP
I P16 12LG/BR RIGHT SEAT HORIZONTAL REARWARD
J P14 12LG/OR RIGHT SEAT HORIZONTAL FORWARD
K P18 12LG/DG RIGHT SEAT FRONT DOWN
L P20 12LG/LB RIGHT SEAT FRONT UP
POWER STEERING PRESSURE SWITCH (NGC) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z988 20BK GROUND
2 K66 18DB/WT P/S SWITCH SIGNAL
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 85

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Battery Temperature Sensor BK Below Battery Tray 22, 25, 26, 28
Blend Door Actuator (Single Zone) BK Behind Right Side of Instrument
PanelN/S
Blower Motor BK Behind Right Side of Instrument
PanelN/S
Blower Motor Resistor Block BK Behind Right Side of Instrument
PanelN/S
Brake Lamp Switch BK Top of Brake Pedal Arm 30, 35, 38
Brake Transmission Shift Interlock
SolenoidBK Near Steering Column 31, 35, 38
C102 Near Integrated Power Module 25
C106 BK Left Rear Engine 7
C107 (5.7L) BK Left Rear Engine 7
C112 (Diesel) BK Near T/O for Water In Fuel Sensor N/S
C113 BK Left Side Engine 10
C114 BK Left side Engine 10
C115 (Diesel) BK Left Side Engine 10
C130 BK Left Rear of Engine 4, 8, 21
C131 Right Rear Engine Compartment 4, 8, 21
C200 GY Under Instrument Panel 39
C201 WT Near Left Instrument Panel
Speaker35, 38
C202 BK Left Rear Side of Engine
Compartment27
C206 BK Right Instrument Panel 35, 39, 48
C207 Rear Engine Compartment 22
C216 BK Middle Left Frame 22, 25, 50
C217 BK Middle Left Frame 22, 25, 50
C218 WT Left Side of Instrument Panel 22, 24, 40, 44, 46
C219 GY Left Side of Instrument Panel 22, 24, 31, 35, 38, 40,
44
C220 WT Left Side of Instrument Panel 35, 38, 40, 44, 46
C250 Seft Side Instrument Panel 35
C301 WT Right Kick Panel 40, 42, 45, 47
C302 BK Left Front Door 40, 42, 45, 47
C304 WT Left Side of Instrument Panel 41, 44, 46
C305 BK At Left Front Door 41, 44, 46
C306 WT Middle Front of Door 43, 46
C308 WT Under Instrument Panel 39, 40, 45, 47
C309 WT Left Side of Instrument Panel 35, 38, 40, 44, 46
C311 BK Left Rear of Frame 44, 46
C312 WT Under Seat 47
C313 DK GY At Driver Seat N/S
C314 DK GY At Driver Seat N/S
8W - 91 - 2 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
C315 DK GY At Driver Seat N/S
C316 BK At Passenger Seat N/S
C317 BK At Passenger Seat N/S
C319 BK Bottom Left of Left Door N/S
C320 Right Rear Door 43
C322 DK GY Left Rear of Frame 44, 46
C323 BK Left Side of Instrument Panel N/S
C327 BK Right Rear Fender 50, 51
C328 BK Left Rear Fender 50, 51, 52
Camshaft Position Sensor GY Right Front Side of Engine 3, 9
Capacitor Left Rear of Engine Compartment 4
Center High Mounted Stop
Lamp/Cargo LampBK Rear of Cab 49
Cigar Lighter Outlet NAT Rear of Cigar Lighter 32, 35, 36
Clearance Lamp No. 1 BK Left Roof 48
Clearance Lamp No. 2 BK Left-Center Roof 48
Clearance Lamp No. 3 BK Center Roof 48
Clearance Lamp No. 4 BK Right-Center Roof 48
Clearance Lamp No. 5 BK Right Roof 48
Clockspring C1 BK Steering Column 31
Clockspring C2 YL Steering Column 31
Clockspring C3 BK Steering Column N/S
Clockspring C4 BK Steering Column N/S
Clutch Interlock Brake Switch BK At Clutch Pedal 22, 24
Coil On Plug No.1 BK Left Top Side of Intake Manifold 6
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 6
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 5, 6
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 6
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 23, 24
Controller Anti-Lock Brake C1 BK Left Fender Side Shield 22, 24, 25
Controller Anti-Lock Brake C2
(ABS)BK Left Fender Side Shield 22, 25
Crankshaft Position Sensor BK Right Rear of Engine Block 3, 9
Cylinder Lock Switch-Driver
(Premium)BK In Left Front Door 41
Cylinder Lock Switch-Passenger
(Premium)LT GY In Right Front Door N/S
Data Link Connector BK Left Bottom of Instrument Panel 35, 38
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 3
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Glove Box Lamp and Switch BK At Glove Box 35, 39
Governor Pressure Sensor BK Left Rear of Transmission N/S
Hands Free Module Right Instrument Panel 39
Headlamp Switch BK Left Side of Instrument Panel 32, 35, 38
Headlamp-Left BL At Headlamp 23, 28, 29
Headlamp-Right BL At Headlamp 1, 21, 26
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 33, 35, 36
Heated Seat Switch-Passenger BL Center of Instrument Panel 33, 35, 36
Horn Switch WT In Steering Wheel N/S
Horn-High Note BK Left Front Fender 23, 28, 29
Horn-Low Note BK Left Front Fender 23, 29
Idle Air Control Motor BK On Throttle Body 6
Ignition Coil GY Left Rear of Engine N/S
Ignition Switch BK Steering Column 31
Inlet Air Temperature/Pressure
SensorBK Right Side Engine 10
Input Speed Sensor BK At Transmission 15, 16
Instrument Cluster C1 GY Rear of Instrument Cluster 35
Instrument Cluster C2 GY Rear of Instrument Cluster 35
Instrument Cluster C3 WT Rear of Instrument Cluster 35
Intake Air Heater Relay Right Engine Compartment 2
Intake Air Temperature/Manifold
Absolute Pressure Sensor (Diesel)BK Left rear Engine N/S
Intake Air Temperature Sensor BK On Intake Manifold 5
Integrated Power Module C1 BK Left Front Fender 26, 28
Integrated Power Module C2 WT Left Front Fender 26, 28
Integrated Power Module C3 GR Left Front Fender 26, 28
Integrated Power Module C4 WT Left Front Fender 26, 28
Integrated Power Module C5 BK Left Front Fender 26, 28
Integrated Power Module C6 BK Left Front Fender 25, 26, 28
Integrated Power Module C7 GY Left Front Fender 26, 28
Integrated Power Module FCM BK In IPM N/S
Knock Sensor BK Left Rear of Engine 5, 7, 9
License Lamp-Left BK At Rear Bumper 50, 51
License Lamp-Right BK At Rear Bumper 50, 51
Lift Pump Motor BK Near T/O for WIF Sensor N/S
Line Pressure Sensor BK Right Rear of Transmission 15, 18
Lumbar Motor-Driver DK GY At Driver Seat N/S
Lumbar Motor-Passenger BK At Passenger Seat N/S
Manifold Absolute Pressure Sensor GY Left Front of Intake Manifold 6
Mode Door Actuator 1 BK Right Side of HVAC N/S
DR8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Mode Door Actuator 2 BK Right Side of HVAC N/S
Multi-Function Switch BK On Steering Column 31
Natural Vacuum Leak Detection
AssemblyBK Rear of Transmission 18, 50
Output Speed Sensor DB Left Side of Transmission 11, 14, 15, 16
Overdrive Switch WT Center of Instrument Panel 35
Overhead Map/Reading Lamp
(Except Base)NAT Center of Headliner N/S
Oxygen Sensor 1/1 Upstream BK Left Front of Side of Transmission 15, 16, 17, 19
Oxygen Sensor 1/2 Downstream NAT Left Rear of Side of Transmission 15, 16, 17, 19
Oxygen Sensor 2/1 Upstream BK Right Front Side of Transmission 15, 17, 18
Oxygen Sensor 2/2 Downstream BK Right Rear Side of Transmission 15, 17, 18
Park Brake Switch At Park Brake 22, 24
Park/Turn Signal Lamp-Left Front BK At Lamp 23, 28, 29
Park/Turn Signal Lamp-Right Front BK At Lamp 1, 21, 26
Passenger Airbag On/Off Switch Right Side of Instrument Panel 33, 35, 39
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 41
Power Mirror-Right BK At Mirror 42
Power Outlet RD Center of Instrument Panel 35
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 7
Power Window Circuit Breaker Under Instrument Panel 31, 35, 38
Power Window Motor-Driver BK In Driver Door at Motor 41
Power Window Motor-Left Rear BK In Door at Motor 43
Power Window Motor-Passenger BK In Passenger Door at Motor 42
Power Window Motor-Right Rear BK In Door at Motor 43
Power Window Switch-Left Rear BL In Door 43
Power Window Switch-Passenger Passenger Door 42
Power Window Switch-Right Rear BL In Door 43
Powertrain Control Module C1 BK Right Rear Engine Compartment 4, 8
Powertrain Control Module C2 WT Right Rear Engine Compartment 4, 8
Powertrain Control Module C3 GY Right Rear Engine Compartment 21
Powertrain Control Module C4 GN Right Rear Engine Compartment 4, 8
8W - 91 - 6 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
PTO Switch Near G107 N/S
Radio C1 (Base) GY Rear of Radio 35, 36
Radio C1 (Premium) BK Rear of Radio 36
Radio C2 (Premium) BK Rear of Radio 36
Radio Antenna - At Antenna Base 37
Radio Antenna Cable - Right Kick Panel 36, 37
Recirculation Door Actuator BK Right Side of HVAC N/S
Red Brake Warning Indicator
SwitchBK Near Master Cylinder 22, 25, 29
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, 46
Seat Belt Pretensioner-Right YL Right B-Pillar 45, 47
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 30
Side Marker - Left Front (Dual
Wheels)BK Front of Left Rear Fender 52
Side Marker - Left Rear (Dual
Wheels)BK Rear of Left Rear Fender 52
Side Marker - Right Front (Dual
Wheels)BK Front of Right Rear Fender 52
Side Marker - Right Rear (Dual
Wheels)BK Rear of Right Rear Fender 52
Speaker-Center Instrument Panel WT Center of Instrument Panel 35, 36
Speaker-Left Front Door WT In Left Front Door 41
Speaker-Left Instrument Panel BK Left Side of Instrument Panel 35, 38
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 42
Speaker-Right Instrument Panel BK Right Side of Instrument Panel 35, 39
Speaker-Right Rear (Standard
Cab)BK In Lower Right B-Pillar 45
Speaker-Right Rear Door (Quad
Cab)BK In Right Rear Door 43
Speed Control Servo BK Left Front Side of Engine
Compartment23, 25
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)

SPLICE
NUMBERLOCATION FIG.
S312 Right Door 42
S313 Left Front Door 41
S314 Left Rear Frame Rail N/S
S315 Left Front Body 40, 44, 46
S316 At Driver Seat N/S
S318 At Passenger Seat N/S
S319 Left Front Door 41
S320 Center of Body 44
S321 Left Front Body 44
S322 Left Front Body 45, 47
S323 Left Front Body 45, 47
S324 Left Rear Chassis 51
S325 Left Rear Chassis 51
S326 Left Rear Chassis N/S
S327 Left Rear Chassis 51
S328 At Driver Seat N/S
S329 At Driver Seat N/S
S330 Center Rear of Chassis 51
S331 Center Rear of Chassis 51
S332 Left Front Door 41
S333 Left Front Body 40, 44, 46
S334 Left Front Body 40, 44, 46
S335 Left Front Body N/S
S336 Passenger Seat N/S
S337 Passenger Seat N/S
S340 Left Rear Fender 52
S341 Right Rear Fender 52
S342 Left Rear Fender 52
S343 Right Rear Fender 52
S351 Driver Seat N/S
8W - 91 - 12 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

for this job. In addition to deglazing, it will reduce
taper and out-of-round, as well as removing light
scuffing, scoring and scratches. Usually, a few strokes
will clean up a bore and maintain the required lim-
its.
CAUTION: DO NOT use rigid type hones to remove
cylinder wall glaze.
(2) Deglazing of the cylinder walls may be done if
the cylinder bore is straight and round. Use a cylin-
der surfacing hone, Honing Tool C-3501, equipped
with 280 grit stones (C-3501-3810). about 20-60
strokes, depending on the bore condition, will be suf-
ficient to provide a satisfactory surface. Using honing
oil C-3501-3880, or a light honing oil, available from
major oil distributors.
CAUTION: DO NOT use engine or transmission oil,
mineral spirits, or kerosene.
(3) Honing should be done by moving the hone up
and down fast enough to get a crosshatch pattern.
The hone marks should INTERSECT at 50É to 60É
for proper seating of rings (Fig. 29).
(4) A controlled hone motor speed between 200 and
300 RPM is necessary to obtain the proper cross-
hatch angle. The number of up and down strokes per
minute can be regulated to get the desired 50É to 60É
angle. Faster up and down strokes increase the cross-
hatch angle.(5) After honing, it is necessary that the block be
cleaned to remove all traces of abrasive. Use a brush
to wash parts with a solution of hot water and deter-
gent. Dry parts thoroughly. Use a clean, white, lint-
free cloth to check that the bore is clean. Oil the
bores after cleaning to prevent rusting.
CLEANING
Thoroughly clean the oil pan and engine block gas-
ket surfaces.
Use compressed air to clean out:
²The galley at the oil filter adaptor hole.
²The front and rear oil galley holes.
²The feed holes for the crankshaft main bearings.
Once the block has been completely cleaned, apply
Loctite PST pipe sealant with Teflon 592 to the
threads of the front and rear oil galley plugs. Tighten
the 1/4 inch NPT plugs to 20 N´m (177 in. lbs.)
torque. Tighten the 3/8 inch NPT plugs to 27 N´m
(240 in. lbs.) torque.
INSPECTION
(1) It is mandatory to use a dial bore gauge to
measure each cylinder bore diameter. To correctly
select the proper size piston, a cylinder bore gauge,
capable of reading in 0.003 mm (.0001 in.) INCRE-
MENTS is required. If a bore gauge is not available,
do not use an inside micrometer (Fig. 30).
Fig. 29 CYLINDER BORE CROSSHATCH PATTERN
1 - CROSSHATCH PATTERN
2 - INTERSECT ANGLE
Fig. 30 BORE GAUGE-TYPICAL
1 - FRONT
2 - BORE GAUGE
3 - CYLINDER BORE
4 - 38 MM (1.5 in)
DRENGINE - 3.7L 9 - 39
ENGINE BLOCK (Continued)

(3) Using Special Tools 8349 Crankshaft Rear Oil
Seal Installer and C-4171 Driver Handle (Fig. 42),
with a hammer, tap the seal into place. Continue to
tap on the driver handle until the seal installer seats
against the cylinder block crankshaft bore.
(4) Install the flexplate.
(5) Install the transmission.
FLEX PLATE
REMOVAL
(1) Remove the transmission.
(2) Remove the bolts and flexplate.
INSTALLATION
(1) Position the flexplate onto the crankshaft and
install the bolts hand tight.
(2) Tighten the flexplate retaining bolts to 95 N´m
(70 ft. lbs.) in the sequence shown (Fig. 43).
(3) Install the transmission.
PISTON & CONNECTING ROD
DESCRIPTION
CAUTION: Do not use a metal stamp to mark con-
necting rods as damage may result, instead use ink
or a scratch awl.The pistons are made of a high strength aluminum
alloy. The connecting rods are made of forged pow-
dered metal, with a ªfractured capº design. A full
floating piston pin is used to attach the piston to the
connecting rod (Fig. 44).
Fig. 42 Crankshaft Rear Oil Seal Installation
1 - REAR CRANKSHAFT SEAL
2 - SPECIAL TOOL 8349-1 INSTALLER
3 - SPECIAL TOOL C-4171 HANDLE
Fig. 43 Flexplate Tightening Sequence
1 - FLEXPLATE
Fig. 44 PISTON AND ROD ASSEMBLY
1 - CONNECTING ROD
2 - PISTON
3 - PISTON PIN
4 - OIL SLINGER SLOT
9 - 48 ENGINE - 3.7LDR
CRANKSHAFT OIL SEAL - REAR (Continued)