1998 DODGE RAM 1500 tow

C218 - NATURAL (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
1-
2 A405 18RD/DB
3 C16 16DB/GY (EXCEPT 3.7L BASE)
4 A930 18RD (EXCEPT 3.7L BASE)
5-
6-
7-
8-
9 A210 12OR/RD (EXCEPT 3.7L BASE)
10 -
11 -
12 C15 16DB/WT (EXCEPT 3.7L BASE)
C219 - (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
1 C110 20DB/LB (TRAILER TOW)
2 D15 18WT/DG (NGC)
3 L50 18WT/TN
4 F1 16PK/WT (NGC)
5 D21 20WT/BR
6 A103 18GY/RD
7 T751 16YL
8 D20 20WT/LG
9 E11 20OR/DB (ELECTRONIC TRANSFER
CASE)
10 A970 10RD
11 A991 10RD (TRAILER TOW)
12 -
13 -
14 -
15 -
16 V38 20VT/OR (5.7L)
17 V37 20VT
18 T6 20DG (GAS/DIESEL A/T)
19 L70 18WT/GY
20 F21 20PK/DG
21 V32 20VT/YL
22 -
23 A921 16RD
24 B25 20DG/WT
25 F202 20PK/GY (5.7L)
25 V30 20VT/WT (GAS EXCEPT 5.7L/DIE-
SEL A/T)
26 A114 18GY/RD
27 L1 18WT/LG
28 -
29 -
30 V937 20VT/BR (5.7L)
30 K900 20DB/DG (EXCEPT 5.7L)
31 A944 20RD
32 F504 20GY/PK
33 A941 18RD
34 -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 27

C219 - (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
35 -
36 F984 18PK/YL
37 -
38 F951 16PK/LG
39 T917 20YL/TN (DIESEL A/T)
40 -
41 A951 16RD
42 F202 20PK/GY
43 A72 18RD/OR (TRAILER TOW)
44 D16 18WT/OR (GAS)
45 -
46 K77 18BR/WT (MAUAL TRANSFER
CASE)
47 T117 20DG/YL (MANUAL TRANSFER
CASE EXCEPT NGC)
48 A205 18RD/OR
49 A116 18YL/RD
50 -
51 -
52 -
53 R79 20LB/VT (NGC EXCEPT 5.7L ABS)
54 R81 20LB/WT (NGC EXCEPT 5.7L ABS)
55 -
56 F100 18PK/VT
57 R80 20VT/LB (NGC EXCEPT 5.7L ABS)
58 R82 20WT/LB (NGC EXCEPT 5.7L ABS)
59 -
60 A981 14RD
61 F982 14PK/YL
62 -
63 -
64 -
65 -
66 F922 16PK/YL
67 F201 18PK/OR
68 L89 18WT/YL (TRAILER TOW)
69 B29 20DG/WT
70 A919 20RD
71 -
72 D25 20VT/PK
73 F983 20PK/YL
74 -
8W - 80 - 28 8W-80 CONNECTOR PIN-OUTSDR

ELECTRIC BRAKE PROVISION-4WAY
CAV CIRCUIT FUNCTION
A A400 14TN/RD FUSED B(+)
B B40 14DG TRAILER TOW BRAKE B(+)
C L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
D Z998 18BK GROUND
ELECTRIC THROTTLE CONTROL MODULE - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 K22 18BR/OR TP NO. 1 SIGNAL
2 F855 18PK/YL 5 VOLT SUPPLY
3 K447 18TN/YL ETC MOTOR (+)
4 K122 18BR/DG TP NO. 2 SIGNAL
5 K448 18TN/OR ETC MOTOR (-)
6 K922 18BR/DB TP SENSOR RETURN
ENGINE CONTROL MODULE C1 (DIESEL) - 60 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3- -
4 D72 18WT/LB CCD BUS (+)
5 D71 18WT/DB CCD BUS (-)
6 K65 18BR/LB FUEL PUMP RELAY RETURN
7 K20 18BR/GY GEN FIELD CONTROL
8- -
9- -
10 - -
11 K2 18TN/BK (A/T) ECT SIGNAL
11 K2 18VT/OR (M/T) ECT SIGNAL
12 K181 18BR/YL FUEL PUMP DRIVER
13 - -
14 K22 18BR/WT (A/T) TP SIGNAL
14 K23 18DB/WT (M/T) APPS NO. 1 SIGNAL
15 K21 18DB/LG INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 - -
16 K29 18WT/BR (M/T) APPS NO. 2 SIGNAL
17 - -
18 - -
19 K31 18BR FUEL PUMP RELAY CONTROL
20 - -
21 - -
22 K24 18LB/BR (A/T) CKP SIGNAL
22 K24 18BR/LB (M/T) CKP SIGNAL
23 K914 18RD/WT (A/T) SENSOR GROUND
23 K914 18BR/WT (M/T) SENSOR GROUND
24 K44 18DB/GY CMP SIGNAL
25 K668 18LG (A/T) SUPPLY VOLTAGE
25 K688 18BR (M/T) SUPPLY VOLTAGE
8W - 80 - 58 8W-80 CONNECTOR PIN-OUTSDR

ENGINE CONTROL MODULE C2 (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 K615 18VT/WT INLET AIR TEMPERATURE SENSE
3 K615 18BR/WT (M/T) INLET AIR TEMPERATURE SENSE
4 V35 18VT/OR (A/T) S/C VENT CONTROL
5 K176 18BR/OR INTAKE AIR HEATER RELAY NO 2 CONTROL
6 K174 18BR/YL INTAKE AIR HEATER RELAY NO 1 CONTROL
7 V32 18VT/YL (A/T) SPEED CONTROL SUPPLY
8- -
9 T41 18YL/DB (A/T) PARK/NEUTRAL POSITION SWITCH SENSE (T41)
10 K161 18BR/LB FAN SPEED SENSOR
11 B22 18DG/YL VEHICLE SPEED SENSOR SIGNAL NO. 1
12 G6 18VT/GY OIL PRESSURE SIGNAL
13 T6 18DG (A/T) TOW/HAUL OVERDRIVE OFF SWITCH SENSE
14 T118 18DG (A/T) GOVERNOR PRESSURE SOLENOID CONTROL
15 T9 18DG/TN (A/T) 3-4 SOLENIOD CONTROL
16 D21 18WT/BR SCI TRANSMIT (PCM)
16 D21 18PK (M/T) SCI TRANSMIT
17 - -
18 T38 18YL/BR (A/T) GOVERNOR PRESSURE SENSOR SIGNAL
19 D20 18WT/LG SCI RECEIVE (PCM)
20 A209 16RD FUSED B(+)
21 Z902 16BK GROUND
22 - -
23 F856 18YL/PK 5 VOLT SUPPLY
24 K900 18DB/DG SENSOR GROUND
25 T75 18YL/LB (A/T) TORQUE CONVERTER CLUTCH SOLENOID CONTROL
26 N4 18DB/WT FUEL LEVEL SENSOR SIGNAL
27 - -
28 D25 18WT/VT PCI BUS
29 T54 18DG/OR (A/T) TRANSMISSION TEMPERATURE SENSOR SIGNAL
30 A209 16RD FUSED B(+)
31 T515 18YL/DB (A/T) TRANSMISSION CONTROL RELAY CONTROL
32 F202 18PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)
33 K854 18VT/BR (M/T) 5 VOLT SUPPLY
34 V36 18VT/YL (A/T) S/C VACUUM CONTROL
35 K616 18BR/YL INLET AIR PRESSURE SENSE
36 V32 18VT/YL (M/T) SPEED CONTROL SUPPLY
37 B29 18DG/WT BRAKE SWITCH SIGNAL
38 - -
39 - -
40 A209 16RD FUSED B(+)
41 C13 18LB/OR A/C CLUTCH RELAY CONTROL
42 - -
43 K160 18BR/OR PARK LOCKOUT SOLENOID CONTROL
44 T14 18DG/BR (A/T) OUTPUT SPEED SENSOR SIGNAL
45 T13 18DG/VT (A/T) SENSOR GROUND
46 V37 18VT S/C SWITCH NO. 1 SIGNAL
47 K25 18DB/VT BATT TEMP SIGNAL
48 K400 18BR/VT (M/T) APPS NO.2 RETURN
49 Z902 16BK GROUND
50 Z902 16BK GROUND
8W - 80 - 60 8W-80 CONNECTOR PIN-OUTSDR

INTAKE AIR TEMPERATURE SENSOR (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K900 18DB/DG SENSOR GROUND
2 K21 18DB/LG IAT SIGNAL
INTAKE AIR TEMPERATURE/MANIFOLD ABSOLUTE PRESSURE SENSOR (DIESEL)-4WAY
CAV CIRCUIT FUNCTION
A K916 18BR/OR SENSOR GROUND
B K21 18DB/LG INTAKE AIR TEMPERATURE SENSOR SIGNAL
C F855 18PK/YL 5 VOLT SUPPLY
D K37 18LB (A/T) BOOST PRESSURE SENSOR SIGNAL
D K37 18BR/OR (M/T) BOOST PRESSURE SENSOR SIGNAL
INTEGRATED POWER MODULE C1 - 26 WAY
CAV CIRCUIT FUNCTION
1 A960 14RD (DIESEL) FUSED B(+)
1 A16 16RD/BR (NGC) FUSED B(+)
2 F21 20PK/DG FUSED IGNITION SWITCH OUTPUT (RUN-START)
3- -
4 F500 20DG/PK FUSED IGNITION SWITCH OUTPUT (RUN)
5 L673 18YL TRAILER TOW LEFT TURN RELAY OUTPUT
6- -
7 L674 18LG TRAILER TOW RIGHT TURN RELAY OUTPUT
8 A981 14RD FUSED B(+)
9 A114 18GY/RD FUSED B(+)
10 L70 18WT/GY FUSED PARK LAMP RELAY OUTPUT
11 F951 16PK/LG FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 A941 18RD FUSED B(+)
13 A919 20RD FUSED B(+)
14 X2 18DG/OR HORN RELAY OUTPUT
15 - -
16 A103 18GY/RD FUSED B(+)
17 L678 18BR PARK LAMP RELAY OUTPUT
18 - -
19 L7 18WT/YL FUSED PARK LAMP RELAY OUTPUT
20 - -
21 - -
22 - -
23 - -
24 - -
25 - -
26 - -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 73

POWERTRAIN CONTROL MODULE C4 (NGC) - GREEN 38 WAY
CAV CIRCUIT FUNCTION
1 T60 18YL/GY OVERDRIVE SOLENOID CONTROL
2 T259 18YL/DG 4C SOLENOID CONTROL
3- -
4 T118 18DG MS SOLENOID CONTROL
5- -
6 T219 18YL/LG 2C SOLENOID CONTROL
7- -
8 T59 18YL/LB UNDERDRIVE SOLENOID CONTROL
9- -
10 T20 18DG/WT L/R SOLENOID CONTROL
11 T140 18YL/GY PRESSURE CONTROL SOLENOID CONTROL
12 Z908 18BK GROUND
13 Z977 18BK GROUND
14 Z904 18BK (A/T) GROUND
15 T1 18DG/LB TRS T1 SENSE
16 T3 18DG/DB TRS T3 SENSE
17 T6 18DG TOW/HAUL OVERDRIVE OFF SWITCH SENSE
18 T515 20YL/DB TRANSMISSION CONTROL RELAY CONTROL
19 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
20 T48 18BR/YL 4C PRESSURE SWITCH SENSE
21 T29 18YL/WT UNDERDRIVE PRESSURE SWITCH SENSE
22 T9 18DG/TN OVERDRIVE PRESSURE SWITCH SENSE
23 - -
24 - -
25 - -
26 T4 18DG/LB TRS T2 SENSE
27 - -
28 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
29 T50 18YL/TN LOW/REVERSE PRESSURE SWITCH SENSE
30 T147 18DG/YL 2C PRESSURE SWITCH SENSE
31 T38 18YL/BR LINE PRESSURE SENSOR SIGNAL
32 T14 18DG/BR OUTPUT SPEED SENSOR SIGNAL
33 T52 18DG/OR INPUT SPEED SENSOR SIGNAL
34 T13 18DG/VT SPEED SENSOR GROUND
35 T54 18DG/OR TRANSMISSION TEMPERATURE SENSOR SIGNAL
36 - -
37 T42 18DG/YL TRS T42 SENSE
38 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 91

THROTTLE POSITION SENSOR (4.7L)-3WAY
CAV CIRCUIT FUNCTION
1 F855 18PK/YL 5 VOLT SUPPLY
2 K22 18BR/OR TP NO. 1 SIGNAL
3 K900 18DB/DG SENSOR GROUND
TOW/HAUL OVERDRIVE SWITCH - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 T6 20DG TOW/HAUL OVERDRIVE OFF SWITCH SENSE
2 Z71 20LB/BK GROUND
TRAILER TOW CONNECTOR-4WAY
CAV CIRCUIT FUNCTION
1 Z999 14BK GROUND
2 L678 18BR PARK LAMP RELAY OUTPUT
3 L673 18YL TRAILER TOW LEFT TURN RELAY OUTPUT
4 L674 18LG TRAILER TOW RIGHT TURN RELAY OUTPUT
TRAILER TOW CONNECTOR-ADD ON - 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L674 18LG TRAILER TOW RIGHT TURN RELAY OUTPUT
3 L1 18WT/LG BACKUP LAMP FEED
4 A100 14RD/VT FUSED B(+)
5 L678 18BR PARK LAMP RELAY OUTPUT
6- -
7 B40 14DG TRAILER TOW BRAKE B(+)
8 Z999 14BK GROUND
9 Z999 14BK GROUND
10 L673 18YL TRAILER TOW LEFT TURN RELAY OUTPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 99

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Speed Control Switch-Right (ETC) WT At Steering Wheel N/S
Starter Solenoid Left Engine 23
Tail/Stop/Turn Signal Lamp-Left BK At Lamp 50, 51
Tail/Stop/Turn Signal Lamp-Right BK At Lamp 50, 51
Throttle Position Sensor NAT Throttle Body 6
Trailer Tow Connector BK At Trailer Hitch 51
Trailer Tow Connector-Add On BK At Trailer Hitch 51, 53
Transfer Case Control Module C1 BK Left Side of Instrument Panel 35, 38
Transfer Case Control Module C2 GY Left Side of Instrument Panel 35, 38
Transfer Case Control Module C3 BK Left Side of Instrument Panel 35, 38
Transfer Case Mode Sensor BK Left Front Side of Transfer Case 13, 14, 16, 20
Transfer Case Position Sensor BK Front Middle of Transfer Case 20
Transfer Case Selector Switch BK Center of Instrument Panel 11, 12, 33, 35, 36
Transfer Case Shift Motor BK Left Rear of Transmission 13, 14, 20
Transmission Range Sensor BK Left side of Transmission 11, 14
Transmission Solenoid Assembly BK Left Side of Transmission 14, 11
Transmission Solenoid/TRS
Assembly (3.7L/4.7L)BK Left Side of Transmission 15, 16
Underhood Lamp BK Underside of Hood 29
Vacuum Pump (Diesel) Right Rear Engine Compartment 21
Vistronic Fan Drive Front Engine Compartment 28
Washer Fluid Level Switch BK At Reservoir 21, 23, 26, 28
Washer Pump Motor-Front BK At Washer Fluid Reservoir 21, 23, 26, 28
Water In Fuel Sensor (Diesel) BK Right Side Engine 10
Wheel Speed Sensor-Left Front BK Left Rear Lower Side of Engine
Compartment22, 29
Wheel Speed Sensor-Rear BK Right Rear of Body 51
Wheel Speed Sensor-Right Front GY Right Rear Lower Side of Engine
Compartment21
Wiper Motor-Front BK Left Side of Cowl 22, 25
8W - 91 - 8 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)