| Connector 1: | Engine Control Module (ECM) - C1 | 
| Connector 2: | Engine Control Module (ECM) - C2 | 
Connector Part Information
  | 
Terminal Part Information
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1  | OG  | 5421  | Injector Positive Voltage Control Group 1  | 
2  | D-BU/WH  | 878  | Fuel Injector 8 Control  | 
3  | RD/BK  | 877  | Fuel Injector 7 Control  | 
4-5  | --  | --  | Not Used  | 
6  | OG/BK  | 469  | Low Reference  | 
7  | PU  | 806  | Crank Voltage  | 
8  | YE  | 2522  | PTO Engage Signal  | 
9  | BN  | 1174  | Oil Level Switch Signal  | 
10  | GY/BK  | 87  | Cruise Control Resume/Accel Switch Signal  | 
11  | GY/BK  | 6272  | Low Reference  | 
12  | GY  | 2704  | 5-Volt Reference  | 
13  | TN  | 5928  | 5-Volt Reference  | 
14  | --  | --  | Not Used  | 
15  | GY  | 2705  | 5-Volt Reference  | 
16-17  | --  | --  | Not Used  | 
18  | YE  | 492  | MAF Sensor Signal  | 
19  | L-GN  | 432  | Turbocharger Boost Sensor Signal  | 
20  | YE  | 5947  | Turbocharger Vane Position Sensor Signal  | 
21  | L-BU  | 1162  | APP Sensor 2 Signal  | 
22  | --  | --  | Not Used  | 
23  | BK  | 2755  | Low Reference  | 
24  | PU/WH  | 2530  | Fuel Pressure Regulator Solenoid Supply Voltage  | 
25  | PK  | 5425  | Injector Positive Voltage Control Group 4  | 
26  | YE/BK  | 846  | Fuel Injector 6 Control  | 
27  | PK/BK  | 1746  | Fuel Injector 3 Control  | 
28-29  | --  | --  | Not Used  | 
30  | OG/BK  | 2919  | Low Reference  | 
31  | L-BU  | 494  | Engine Shutoff Signal (PTO w/A/T)  | 
32  | GY  | 48  | CPP Switch Signal  | 
33  | --  | --  | Not Used  | 
34  | D-BU  | 84  | Cruise Control Set/Coast Switch Signal  | 
35-36  | --  | --  | Not Used  | 
37  | GY  | 2703  | 5-Volt Reference  | 
38  | TN  | 1274  | 5-Volt Reference  | 
39  | TN  | 2917  | 5-Volt Reference  | 
40  | PU/WH  | 6270  | 5-Volt Reference  | 
41  | RD  | 6259  | 5-Volt Reference  | 
42  | TN  | 472  | IAT Sensor Signal  | 
43  | --  | --  | Not Used  | 
44  | TN/WH  | 332  | Oil Pressure Sensor Signal  | 
45-46  | --  | --  | Not Used  | 
47  | GY  | 720  | Low Reference  | 
48  | D-BU  | 5930  | Turbocharger Vane Position Control Solenoid Valve High Control  | 
49  | PU  | 5423  | Injector Positive Voltage Control Group 3  | 
50  | BK/WH  | 845  | Fuel Injector 5 Control  | 
51  | L-BU/BK  | 844  | Fuel Injector 4 Control  | 
52  | --  | --  | Not Used  | 
53  | YE/BK  | 6120  | Low Reference  | 
54  | --  | --  | Not Used  | 
55  | GY/BK  | 2931  | Low Reference  | 
56  | D-BU/WH  | 6265  | CMP Sensor Signal  | 
57  | GY/BK  | 1694  | 4WD Low Signal  | 
58  | L-GN  | 1478  | Coolant Level Switch Signal  | 
59  | --  | --  | Not Used  | 
60  | L-GN  | 488  | PTO On Switch Signal  | 
61  | GY  | 397  | Cruise Control ON Switch Signal  | 
62  | BK  | 552  | Low Reference  | 
63  | OG/BK  | 5929  | Low Reference  | 
64  | --  | --  | Not Used  | 
65  | L-BU  | 6118  | IAT Sensor 2 Signal  | 
66  | --  | --  | Not Used  | 
67  | BN/WH  | 5763  | EGR Valve Position Signal  | 
68  | YE  | 410  | ECT Sensor Signal  | 
69-70  | --  | --  | Not Used  | 
71  | YE/BK  | 625  | Starter Enable Relay Control  | 
72  | YE  | 2834  | Fuel Pressure Regulator Solenoid Control  | 
73  | YE  | 5422  | Injector Positive Voltage Control Group 2  | 
74  | BK  | 1744  | Fuel Injector 1 Control  | 
75  | L-GN/BK  | 1745  | Fuel Injector 2 Control  | 
76  | PK  | 1039  | Ignition 1 Voltage  | 
77  | OG  | 440  | Battery Positive Voltage  | 
78  | PU  | 1272  | Low Reference  | 
79  | WH/BK  | 6271  | CKP Sensor Signal  | 
80-81  | --  | --  | Not Used  | 
82  | BK/WH  | 1695  | Axle Switch Signal  | 
83  | --  | --  | Not Used  | 
84  | GY  | 1524  | Backup Lamp Supply Voltage  | 
85  | YE/BK  | 508  | Water In Fuel Indicator Control  | 
86  | BK  | 2754  | Low Reference  | 
87  | --  | --  | Not Used  | 
88  | BN  | 6266  | Low Reference  | 
89-91  | --  | --  | Not Used  | 
92  | YE  | 2918  | FRP Sensor Signal  | 
93-95  | --  | --  | Not Used  | 
96  | WH  | 5931  | Turbocharger Vane Position Control Solenoid Valve Low Control  | 
Connector Part Information
  | 
Terminal Part Information
 
  | 
Pin  | Wire Color  | Circuit No.  | Function  | 
|---|---|---|---|
1  | PK  | 339  | Ignition 1 Voltage  | 
2  | BK/WH  | 451  | Ground  | 
3  | PK  | 339  | Ignition 1 Voltage  | 
4  | BK/WH  | 451  | Ground  | 
5  | PK  | 339  | Ignition 1 Voltage  | 
6  | BK/WH  | 451  | Ground  | 
7-8  | --  | --  | Not Used  | 
9  | D-GN  | 1049  | Class 2 Serial Data  | 
10-11  | --  | --  | Not Used  | 
12  | D-GN/WH  | 465  | Fuel Pump Relay Control  | 
13  | BK  | 2751  | Low Reference  | 
14  | --  | --  | Not Used  | 
15  | WH/BK  | 1164  | 5-Volt Reference  | 
16  | D-BU  | 507  | Wait to Start Indicator Control  | 
17  | --  | --  | Not Used  | 
18  | PU  | 2562  | PTO Control (PTO)  | 
19  | GY/BK  | 2219  | ECM Relay Control  | 
20  | --  | --  | Not Used  | 
21  | PK  | 439  | Ignition 1 Voltage  | 
22  | L-BU  | 1320  | CHMSL Supply Voltage  | 
23  | BN  | 25  | Charge Indicator Control  | 
24  | BN  | 2524  | Generator 2 Turn On Signal (8X5/YF2)  | 
25-26  | --  | --  | Not Used  | 
27  | GY  | 2700  | 5-Volt Reference  | 
28  | --  | --  | Not Used  | 
29  | BN  | 1271  | Low Reference  | 
30  | BN/WH  | 419  | MIL Control  | 
31  | D-GN/WH  | 459  | A/C Compressor Clutch Relay Control  | 
32  | --  | --  | Not Used  | 
33  | OG/BK  | 5764  | EGR Motor High Control  | 
34  | BK  | 470  | Low Reference  | 
35  | RD/BK  | 380  | A/C Refrigerant Pressure Sensor Signal  | 
36  | PU/WH  | 1589  | Fuel Level Sensor Signal - Primary  | 
37  | --  | --  | Not Used  | 
38  | GY  | 23  | Generator Field Duty Cycle Signal  | 
39  | OG/BK  | 1786  | Park/Neutral Signal (MW7)  | 
40  | PU  | 420  | TCC Brake Switch/Cruise Control Release Switch Signal  | 
41  | --  | --  | Not Used  | 
42  | D-GN/WH  | 817  | Vehicle Speed Signal  | 
43  | --  | --  | Not Used  | 
44  | TN  | 2501  | High Speed GMLAN Serial Data Bus -  | 
45  | PU/WH  | 821  | VSS High Signal (ML6)  | 
45  | YE  | 400  | VSS High Signal (MW7)  | 
46  | L-GN/BK  | 5746  | EGR Motor Low Control  | 
47  | BN  | 6062  | Low Reference  | 
48  | YE  | 1578  | Fuel Temperature Signal  | 
49  | D-BU  | 1161  | APP Sensor 1 Signal  | 
50  | D-BU  | 1936  | Fuel Level Sensor Signal - Secondary (Except NQZ)  | 
51-53  | --  | --  | Not Used  | 
54  | YE/BK  | 1827  | Vehicle Speed Signal  | 
55  | WH  | 121  | Engine Speed Signal  | 
56  | PK  | 1020  | Ignition 0 Voltage  | 
57  | TN/WH  | 2500  | High Speed GMLAN Serial Data Bus +  | 
58  | L-GN/BK  | 822  | VSS Low Signal (ML6)  |