K31 circuit

[JKeith]

It all started with a fuel leak at the #5 injector. While trying to get a wrench on the tube nut to tighten it. I needed to swing the draft tube from the side of the valve cover, so that I could get a wrech in. In order to swing the draft tube, I had to open and move connector C130, located of the firewall lip. Did manage to tightedn the fuel line, but now it will not start.

Checked the manual CD, wirring diagram, and found two likely wires the might keep it from starting. F202, Ing. run, start, shows batt. voltage with key on.

K31, fuel pump control, is the other. I need some idea of what voltage to look for and under what conditions. Any Help?

 

[Prairie Dog]

Have you taken the connector back apart and checked for any bent or damaged pins?

 

[07 ThunderRoad]

Jkeith; are you still having a problem with this. I have the 07 service manual. 06 & 07 are can bus protocol trucks.

 

[JKeith]

Ya, but I don'tknow what to do with a can bus, but thanks's for your input.

 

[JKeith]

Prairie Dog; Thank' for your help, I did check before, any other test, and I am going to go look again before I give up. Thanks again.

 

[07 ThunderRoad]

Ya, but I don'tknow what to do with a can bus, but thanks's for your input.

All I'm saying is that the 06 and 07 5. 9 CTD trucks wiring is very close and I have the 07 factory service manual.


C130 - BLACK 34 WAY

Cavity# / circuit / function
1 A212 20RD/OR FUSED B(+)
1 K348 18BR SMART POWER RELAY RETURN
1 D15 20WT/DG SCI TRANSMIT (TCM)
2 V37 20VT S/C SWITCH NO. 1 SIGNAL
2 D16 20WT/OR SCI RECEIVE (TCM)
3 C818 20LB/OR A/C PRESSURE 5 VOLT SUPPLY
4 A209 10RD FUSED B(+)
4 K342 16BR/WT ASD CONTROL OUTPUT
5 C18 20LB/BR A/C PRESSURE SIGNAL
6 T103 20YL/OR 5 VOLT SUPPLY
6 K31 20BR FUEL PUMP CONTROL
7 K107 20VT/WT NVLD SWITCH SIGNAL
7 K174 18BR/YL INTAKE AIR HEATER RELAY CONTROL
8 T101 16DG SHIFT MOTOR CONTROL B
8 K451 20BR/WT MDS SOL CONTROL NO. 1
8 F960 20PK/LG FUSED IGNITION SWITCH OUTPUT (RUN-START)
9 T26 20DG/OR CLUTCH INTERLOCK/UPSTOP SWITCH OUTPUT
9 T26 18DG/OR CLUTCH INTERLOCK/UPSTOP SWITCH OUTPUT
9 T41 20YL/DB TRS T41 SIGNAL (P/N)
10 C13 20LB A/C CLUTCH CONTROL
10 C918 20BK/LB A/C PRESSURE GROUND
11 C13 20LB/OR A/C CLUTCH CONTROL
11 C13 20LB A/C CLUTCH CONTROL
11 A918 16RD FUSED B(+)
12 C3 20DB/YL A/C CLUTCH CONTROL OUTPUT
13 G180 20VT/YL SENSOR RETURN
13 K454 20BR/OR MDS SOL CONTROL NO. 7
13 V32 20VT/YL BRAKE SWITCH NO. 2 SIGNAL
14 L10 20WT/GY FUSED IGNITION SWITCH OUTPUT (RUN)
14 G905 20BR/OR EXHAUST BRAKE SWITCH SIGNAL
15 A940 18RD FUSED B(+)
15 V937 20VT/BR S/C SWITCH RETURN
16 F202 20PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)
16 T16 16YL/OR TRANSMISSION CONTROL OUTPUT
17 T102 16YL SHIFT MOTOR CONTROL A
17 A961 14RD FUEL HEATER CONTROL OUTPUT
17 Z953 20BK GROUND
18 T6 20DG TOW/HAUL OVERDRIVE OFF SWITCH SIGNAL
19 T71 20YL/OR INPUT SPEED SENSOR 2 (N3) RETURN
19 K900 20DB/DG SENSOR GROUND
20 G904 20VT/DG EXHAUST BRAKE LAMP SIGNAL
20 T515 20YL/DB TRANSMISSION CONTROL
21 K25 20DB/VT BATT TEMP SIGNAL
21 K399 18BR/GY O2 2/2 HEATER CONTROL
22 T71 20YL/OR INPUT SPEED SENSOR 2 (N3) RETURN
22 G24 20VT/BR OIL TEMPERATURE SIGNAL
22 B29 20DG/WT BRAKE SWITCH NO. 1 SIGNAL
23 D64 20WT/LB CAN C BUS (-)
24 D65 20WT/LG CAN C BUS (+)
25 T340 20DG/VT INPUT SPEED SENSOR 2 (N3) SIGNAL
25 K66 20DB/WT P/S SWITCH SIGNAL
25 A918 16RD FUSED B(+)
25 V38 20VT/OR S/C SWITCH NO. 2 SIGNAL
26 F348 16PK/OR SMART POWER RELAY FEED
26 T751 20YL IGNITION START
27 K29 20WT/BR APPS NO. 2 SIGNAL
27 K299 20BR/WT O2 1/2 HEATER CONTROL SUPPLY
28 T300 20YL/GY T-CASE MOTOR BRAKE SIGNAL
28 T340 20DG/VT INPUT SPEED SENSOR 2 (N3) SIGNAL
28 K854 20VT/BR 5 VOLT SUPPLY
28 G180 20VT/YL SENSOR RETURN
29 K400 20BR/VT APPS NO. 2 RETURN
29 F1 20PK/WT FUSED IGNITION SWITCH OUTPUT (OFF-RUN-START)
30 F856 20PK/YL 5 VOLT SUPPLY
30 D201 20WT/DG MODE SENSOR A
30 K23 20BR/WT APPS NO. 1 SIGNAL
31 F855 20PK/YL 5 VOLT SUPPLY
31 T341 20DG/VT INPUT SPEED SENSOR 1 (N2) RETURN
31 K852 20BR/VT 5 VOLT SUPPLY
31 K852 20BR/LB 5 VOLT SUPPLY
32 K167 20BR/YL APPS NO. 1 RETURN
32 K167 20BR/DG APPS NO. 1 RETURN
32 T70 20YL INPUT SPEED SENSOR 1 (N2) SIGNAL
32 L10 20WT/GY FUSED IGNITION SWITCH OUTPUT (RUN)
33 T103 20YL/OR 5 VOLT SUPPLY
33 D201 20WT/DG MODE SENSOR A
33 T341 20DG/VT INPUT SPEED SENSOR 1 (N2) RETURN
33 K974 18BR/BK INTAKE AIR HEATER RELAY CONTROL RETURN
34 F202 20PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)

C130 - (NOT BLACK) 34 WAY

1 A212 18PK/YL FUSED B(+)
1 K348 18BR SMART POWER RELAY RETURN
2 V37 18VT S/C SWITCH NO. 1 SIGNAL
3 C818 18LB/OR A/C PRESSURE 5 VOLT SUPPLY
3 C818 20LB/OR A/C PRESSURE 5 VOLT SUPPLY
4 A209 10RD FUSED B(+)
4 K342 16BR/WT ASD CONTROL OUTPUT
5 C18 18LB/BR A/C PRESSURE SIGNAL
5 C18 20LB/BR A/C PRESSURE SIGNAL
6 K31 18BR FUEL PUMP CONTROL
7 K174 18BR/YL INTAKE AIR HEATER RELAY CONTROL
7 K107 20VT/WT NVLD SWITCH SIGNAL
8 T101 16DG SHIFT MOTOR CONTROL B
8 K451 20BR/WT MDS SOL CONTROL NO. 1
8 F960 20PK/LG FUSED IGNITION SWITCH OUTPUT (RUN-START)
9 T41 18YL/DB TRS T41 SIGNAL (P/N)
9 T41 20YL/DB TRS T41 SIGNAL (P/N)
10 C918 18BK/LB A/C PRESSURE GROUND
10 C13 18LB A/C CLUTCH CONTROL
10 C918 20BK/LB A/C PRESSURE GROUND
11 C13 18LB/OR A/C CLUTCH CONTROL
11 C13 18LB A/C CLUTCH CONTROL
11 A918 16RD FUSED B(+)
12 C3 18DB/YL A/C CLUTCH CONTROL OUTPUT
12 C3 20DB/YL A/C CLUTCH CONTROL OUTPUT
13 G180 20VT/YL SENSOR RETURN
13 K454 20BR/OR MDS SOL CONTROL NO. 7
13 V32 18VT/YL BRAKE SWITCH NO. 2 SIGNAL
14 L10 20WT/GY FUSED IGNITION SWITCH OUTPUT (RUN)
15 A940 20RD FUSED B(+)
16 T16 16YL/OR TRANSMISSION CONTROL OUTPUT
17 T102 16YL SHIFT MOTOR CONTROL A
17 A961 14RD FUEL HEATER CONTROL OUTPUT
17 Z953 20BK GROUND
18 T6 18DG TOW/HAUL OVERDRIVE OFF SWITCH SIGNAL
18 T6 20DG TOW/HAUL OVERDRIVE OFF SWITCH SIGNAL
19 K900 20DB/DG SENSOR GROUND
19 T71 20YL/OR INPUT SPEED SENSOR 2 (N3) RETURN
20 T515 18YL/DB TRANSMISSION CONTROL
20 T515 20YL/DB TRANSMISSION CONTROL
21 K25 18DB/VT BATT TEMP SIGNAL
21 K399 20BR/GY O2 2/2 HEATER CONTROL
22 T71 20YL/OR INPUT SPEED SENSOR 2 (N3) RETURN
22 G24 20VT/BR OIL TEMPERATURE SIGNAL
22 B29 18DG/WT BRAKE SWITCH NO. 1 SIGNAL
23 D64 18WT/LB CAN C BUS (-)
23 D64 20WT/LB CAN C BUS (-)
24 D65 18WT/LG CAN C BUS (+)
24 D65 20WT/LG CAN C BUS (+)
25 T340 20DG/VT INPUT SPEED SENSOR 2 (N3) SIGNAL
25 A918 16RD FUSED B(+)
26 T751 20YL IGNITION START
27 K29 18WT/BR APPS NO. 2 SIGNAL
27 K299 20BR/WT O2 1/2 HEATER CONTROL SUPPLY
28 T300 20YL/GY T-CASE MOTOR BRAKE SIGNAL
28 T340 20DG/VT INPUT SPEED SENSOR 2 (N3) SIGNAL
28 K854 18VT/BR 5 VOLT SUPPLY
28 G180 20VT/YL SENSOR RETURN
29 K400 18BR/VT APPS NO. 2 RETURN
29 F1 20PK/WT FUSED IGNITION SWITCH OUTPUT (OFF-RUN-START)
30 F856 20YL/PK 5 VOLT SUPPLY
30 D201 20WT/DG MODE SENSOR A
30 K23 18BR/WT APPS NO. 1 SIGNAL
31 F855 20PK/YL 5 VOLT SUPPLY
31 T341 20DG/VT INPUT SPEED SENSOR 1 (N2) RETURN
31 K852 18BR/VT 5 VOLT SUPPLY
32 K167 18BR/YL APPS NO. 1 RETURN
32 T70 20YL INPUT SPEED SENSOR 1 (N2) SIGNAL
32 L10 20WT/GY FUSED IGNITION SWITCH OUTPUT (RUN)
33 T103 20YL/OR 5 VOLT SUPPLY
33 T341 20DG/VT INPUT SPEED SENSOR 1 (N2) RETURN
33 D201 20WT/DG MODE SENSOR A
33 D201 18WT/DG MODE SENSOR A
34 F202 18PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)
34 F202 20PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)

There are two connectors listed. The numbers are the port the wire is in. The same posted number is listed 2 or more times because of a midyear change or a different vendor supplied wiring harness. Some times the wire rots out of the pin. Pull on each wire at the back of each connector to see if a wire broke. Check the male and female pins to see if one of them was pushed back into the connector plug. The 07 manual list several possible problem wires with the starting of the truck.

 

[JKeith]

ParireDog & 07Thunder Road; Thank's again for your assistance. A friend came by today to help sort out what we could. Having two of us so that one could observe while the other was cranking, made it obvious that the fuel leak was the real problem. Appariently tightening the fuel line made the leak worse, so bad that the common rail could not build enough pressure to fire any of the other clyinders. Spent the afternoon getting a new line from cummins, will try to install tomarrow. Will let you know.

 

[JKeith]

Yep that was it. thank's for all the help.

 

[Prairie Dog]

Thanks for updating us - glad you got it fixed.