1998 DODGE RAM 1500 Engine

C109 (DIESEL) - LT GRAY (ENGINE SIDE)
CAV CIRCUIT
1 V35 18VT/OR
2 V32 18VT/YL
3 T41 18YL/DB
4 T6 18DG
5 T118 18DG
6 T9 18DG/TN
7-
8 T38 18YL/BR
9 T75 18YL/LB
10 T54 18DG/OR
11 T515 18YL/DB
12 V36 18VT/YL
13 T14 18DG/BR
14 T13 18DG/VT
C109 (DIESEL) - LT GRAY (TRANSMISSION
SIDE)
CAV CIRCUIT
1 V35 20VT/OR
2 V32 20VT/YL
3 T41 20YL/DB
4 T6 20DG
5 T118 18DG
6 T9 18DG/TN
7-
8 T38 18YL/BR
9 T75 18YL/LB
10 T54 18DG/OR
11 T515 20YL/DB
12 V36 20VT/YL
13 T14 18DG/BR
14 T13 18DG/VT
C110 (DIESEL) - BLACK (ENGINE SIDE)
CAV CIRCUIT
1 C3 18DB/YL
2 B29 18DG/WT
3-
4 K900 18DB/DG
5 V37 18VT
6 K160 18BR/OR
7 K161 18BR/LB
8 F856 18YL/PK
9 D20 18WT/LG
10 D21 18WT/BR
10 D21 18PK
11 F202 18PK/GY
12 K29 18WT/BR (M/T)
13 K854 18VT/BR (M/T)
14 K400 18BR/VT (M/T)
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 17

C110 (DIESEL) - BLACK (TRANSMISSION SIDE)
CAV CIRCUIT
1 C3 20DB/YL
2 B29 20DG/WT
3-
4 K900 20DB/DG
5 V37 20VT
6 K160 18BR/OR
7 K161 18BR/LB
8 F856 18YL/PK
9 D20 20WT/LG
10 D21 20WT/BR
11 F202 20PK/GY
12 K29 20WT/BR (M/T)
13 K854 20VT/BR (M/T)
14 K400 20BR/VT (M/T)
C112 (DIESEL A/T) - (ENGINE SIDE)
CAV CIRCUIT
1 C3 18DB/YL
2 A961 14RD
3 K615 18VT/WT
4 K616 18BR/YL
C112 (DIESEL A/T) - (TRANSMISSION SIDE)
CAV CIRCUIT
1 C3 18DB/YL
2 A961 14RD
3 K615 18VT/WT
4 K616 18BR/YL
C112 (DIESEL M/T) - (ENGINE SIDE)
CAV CIRCUIT
1 C3 18DB/YL
2 A961 14RD
3 K615 18BR/WT
4 K616 18BR/YL
5 K167 18BR/YL
6 K23 18BR/WT
7 K852 18BR/VT
8 K29 18WT/BR
8W - 80 - 18 8W-80 CONNECTOR PIN-OUTSDR

C131 (3.7L/4.7L EXCEPT ELECTRONIC TRANS-
FER CASE) - (HEADLAMP AND DASH SIDE)
CAV CIRCUIT
1 D20 20WT/LG
2 D21 20WT/BR
3-
4-
C131 (3.7L/4.7L EXCEPT ELECTRONIC TRANS-
FER CASE) - DK GRAY (ENGINE SIDE)
CAV CIRCUIT
1 D20 18WT/LG
2 D21 18WT/BR
3-
4-
C131 (4.7L ELECTRONIC TRANSFER CASE) -
(ENGINE SIDE)
CAV CIRCUIT
1 T316 16YL/GY
2 D200 20WT/LG
3 T313 20YL/LG
4 D202 20WT/VT
5 T885 20YL/GY
6 D201 20WT/DG
7 D203 20WT/BR
8 T315 16YL/BR
9 D20 18WT/LG (4.7L)
10 D21 18WT/BR (4.7L)
11
12
8W - 80 - 20 8W-80 CONNECTOR PIN-OUTSDR

C131 (4.7L ELECTRONIC TRANSFER CASE) -
(HEADLAMP AND DASH SIDE)
CAV CIRCUIT
1 T316 16YL/GY
2 D200 20WT/LG
3 T313 20YL/LG
4 D202 20WT/VT
5 T885 20YL/GY
6 D201 20WT/DG
7 D203 20WT/BR
8 T315 16YL/BR
9 D20 20WT/LG (4.7L)
10 D21 20WT/BR (4.7L)
11
12
C131 (5.7L/DIESEL) - GRAY (ENGINE SIDE)
CAV CIRCUIT
A1 T316 16YL/GY (ELECTRONIC TRANS-
FER CASE)
A2 D200 20WT/LG (ELECTRONIC TRANS-
FER CASE)
A3 T313 20YL/LG (ELECTRONIC TRANS-
FER CASE)
A4 D202 20WT/VT (ELECTRONIC TRANS-
FER CASE)
A5 T885 20YL/GY (ELECTRONIC TRANS-
FER CASE)
A6 D201 20WT/DG (ELECTRONIC TRANS-
FER CASE)
A7 D203 20WT/BR (ELECTRONIC TRANS-
FER CASE)
A8 T315 16YL/BR (ELECTRONIC TRANS-
FER CASE)
B1 -
B2 D20 20WT/LG
B3 D21 20WT/BR
B4 V32 20VT/YL (DIESEL)
B5 T117 20DG/YL (DIESEL A/T)
B6 V36 20VT/YL (DIESEL A/T)
B7 T917 20YL/TN (DIESEL A/T)
B8 -
C1 A961 14RD (DIESEL)
C2 B22 20DG/WT (5.7L)
C3 F855 18PK/YL (5.7L)
C3 B29 20DG/WT (DIESEL)
C4 F856 18YL/PK (5.7L)
C5 K160 18BR/OR (DIESEL)
C6 K161 18BR/LB (DIESEL)
C7 V37 20VT (DIESEL)
C8 K25 18DB/VT (DIESEL)
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 21

DATA LINK CONNECTOR - BLACK 16 WAY
CAV CIRCUIT FUNCTION
12 D20 20WT/LG SCI RECEIVE (PCM)
13 - -
14 - -
15 D15 18WT/DG SCI TRANSMIT (TCM)
16 A114 18GY/RD FUSED B(+)
DATA LINK CONNECTOR-ENGINE (DIESEL)-3WAY
CAV CIRCUIT FUNCTION
1 D72 18WT/LB CCD BUS (+)
2 D71 18WT/DB CCD BUS (-)
3 Z816 14BK (A/T) GROUND
3 Z11 14BK/LG (M/T) GROUND
DOME LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1- -
2 M20 20YL/LB COURTESY LAMPS DRIVER
3 Z964 20BK GROUND
DOOR AJAR SWITCH-DRIVER - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G75 20VT DRIVER DOOR AJAR SWITCH SENSE
2 Z75 20BK/VT GROUND
DOOR AJAR SWITCH-LEFT REAR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G77 20VT/GY LEFT REAR DOOR AJAR SWITCH SENSE
2 Z79 20LG/BK GROUND
8W - 80 - 54 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 C1 (DIESEL) - 60 WAY
CAV CIRCUIT FUNCTION
26 C918 18BK/LB A/C PRESSURE SENSOR GROUND
27 K853 18DB/BR 5 VOLT SUPPLY
28 - -
29 K690 18DG/YL (A/T) INLET AIR TEMPERATURE/PRESSURE RETURN
29 K690 18BR/YL (M/T) INLET AIR TEMPERATURE/PRESSURE RETURN
30 K11 16WT/DB (A/T) INJECTOR CONTROL NO. 1
30 K11 16BR/YL (M/T) INJECTOR CONTROL NO.1
31 G123 18VT/LG WATER IN FUEL SENSOR SIGNAL
32 K916 18BR/OR SENSOR GROUND
33 K922 18LG/OR (A/T) THROTTLE POSITION SENSOR RETURN
33 K167 18BR/YL (M/T) APPS NO. 1 RETURN
34 K565 18OR IDLE SWITCH
35 - -
36 K14 16BR/TN INJECTOR CONTROL NO. 4
37 - -
38 - -
39 - -
40 K13 16TN (A/T) INJECTOR CONTROL NO. 3
40 K13 16BR/LB (M/T) INJECTOR CONTROL NO.3
41 - -
42 K851 18VT/PK (A/T) 5-VOLT SUPPLY
42 K852 18BR/VT (M/T) APPS 1 5-VOLT SUPPLY
43 K37 18LB (A/T) BOOST PRESSURE SENSOR SIGNAL
43 K37 18BR/OR (M/T) BOOST PRESSURE SENSOR SIGNAL
44 K556 18OR/BR NOT IDLE SWITCH
45 N2 18DB/YL LIFT PUMP FEED
46 K58 16BR/VT INJECTOR CONTROL NO. 6
47 - -
48 - -
49 - -
50 K12 16BR/DB INJECTOR CONTROL NO. 2
51 - -
52 K975 18BR/BK (A/T) SENSOR GROUND
52 K975 18BR/OR (M/T) SENSOR GROUND
53 K915 18VT/RD FUEL RAIL SENSOR RETURN
54 F855 18PK/YL 5 VOLT SUPPLY
55 - -
56 K38 16GY (A/T) INJECTOR CONTROL NO. 5
56 K38 16BR/OR (M/T) INJECTOR CONTROL NO. 5
57 K229 16TN/PK (A/T) ENG-INJECTOR HIGH SIDE DRIVER-BANK 2
57 K229 16BR/LB (M/T) ENG-INJECTOR HIGH SIDE DRIVER-BANK 2
58 - -
59 K227 16BR/LG ENG-INJECTOR HIGH SIDE DRIVER-BANK 1
60 - -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 59

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