Engine Control Module Connector End Views (ECM)
Engine Control Module (ECM) - C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | OG | 5421 | Injector Positive Voltage Control |
| 2 | D-BU/WH | 878 | Fuel Injector 8 Control Group 4 |
| 3 | OG/BK | 877 | Fuel Injector 7 Control Group 2 |
| 4-5 | - | - | Not Used |
| 6 | OG/BK | 469 | Low Reference |
| 7 | PU | 806 | Crank Voltage |
| 8 | - | - | Not Used |
| 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 3 |
| 13 | TN | 5928 | 5-Volt Reference 3 |
| 14 | - | - | Not Used |
| 15 | GY | 2705 | 5-Volt Reference 2 |
| 16-17 | - | - | Not Used |
| 18 | YE | 492 | MAF Sensor Signal |
| 19 | L-GN | 432 | MAP Sensor Signal |
| 20 | YE | 5947 | Turbocharger Vane Position Sensor Signal |
| 21 | L-BU | 1162 | APP Sensor 2 Signal |
| 22 | YE/BK | 508 | Water in Fuel Indicator Control |
| 23 | BK | 2755 | Low Reference |
| 24 | PU/WH | 2530 | Fuel Pressure Regulator Solenoid Supply Voltage |
| 25 | PK | 5425 | Injector Positive Voltage Control |
| 26 | YE/BK | 846 | Fuel Injector 6 Control Group 2 |
| 27 | PK/BK | 1746 | Fuel Injector 3 Control Group 4 |
| 28-29 | - | - | Not Used |
| 30 | OG/BK | 2919 | Low Reference |
| 31-33 | - | - | Not Used |
| 34 | D-BU | 84 | Cruise Control Set/Coast Switch Signal |
| 35-36 | - | - | Not Used |
| 37 | GY | 2702 | 5-Volt Reference 3 |
| 38 | TN | 1274 | 5-Volt Reference 2 |
| 39 | TN | 2917 | 5-Volt Reference 2 |
| 40 | PU/WH | 6270 | 5-Volt Reference 1 |
| 41 | D-BU | 6259 | 5-Volt Reference 1 |
| 42 | TN | 472 | IAT Sensor 1 Signal |
| 43 | - | - | Not Used |
| 44 | TN/WH | 331 | Oil Pressure Sensor Signal |
| 45-46 | - | - | Not Used |
| 47 | TN | 2761 | Low Reference |
| 48 | D-BU | 5930 | Turbocharger Vane Position Control Solenoid Valve Control |
| 49 | PU | 5423 | Injector Positive Voltage Control |
| 50 | TN/WH | 845 | Fuel Injector 5 Control Group 3 |
| 51 | L-BU/BK | 844 | Fuel Injector 4 Control Group 1 |
| 52 | - | - | Not Used |
| 53 | YE/BK | 6120 | Low Reference |
| 54 | - | - | Not Used |
| 55 | TN | 476 | Low Reference |
| 56 | D-BU/WH | 6265 | CMP Sensor Signal |
| 57 | - | - | Not Used |
| 58 | L-GN | 1478 | Coolant Level Switch Signal |
| 59 | D-GN | 534 | High Idle Switch Signal |
| 60 | - | - | Not Used |
| 61 | GY | 397 | Cruise Control On Switch Signal |
| 62 | TN | 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 |
| 69-71 | - | - | Not Used |
| 72 | YE | 2834 | Fuel Pressure Regulator Solenoid Control |
| 73 | YE | 5422 | Injector Positive Voltage Control |
| 74 | TN | 1744 | Fuel Injector 1 Control Group 1 |
| 75 | L-GN/BK | 1745 | Fuel Injector 2 Control Group 3 |
| 76 | RD/WH | 840 | Ignition 1 Voltage |
| 77 | RD/WH | 440 | Battery Positive Voltage |
| 78 | PU | 1272 | Low Reference |
| 79 | WH/BK | 6271 | CKP Sensor Signal |
| 80 | D-GN/WH | 2523 | A/C Request Signal (C60) |
| 81-85 | - | - | Not Used |
| 86 | TN | 2753 | 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 | Low Reference |
Engine Control Module (ECM) - C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | RD/WH | 740 | Ignition 1 Voltage |
| 2 | BK/WH | 1551 | Ground |
| 3 | RD/WH | 740 | Ignition 1 Voltage |
| 4 | BK/WH | 1551 | Ground |
| 5 | RD/WH | 740 | Ignition 1 Voltage |
| 6 | BK/WH | 1551 | Ground |
| 7-8 | - | - | Not Used |
| 9 | D-GN | 1049 | Class 2 Serial Data |
| 10-11 | - | - | Not Used |
| 12 | TN | 1465 | Fuel Pump Relay Control |
| 13-14 | - | - | Not Used |
| 15 | WH/BK | 1164 | 5-Volt Reference 3 |
| 16 | D-BU | 507 | Wait to Start Indicator Control |
| 17 | OG | 2013 | High Idle Indicator Control |
| 18 | - | - | Not Used |
| 19 | YE | 5991 | ECM Relay Control |
| 20 | - | - | Not Used |
| 21 | PK | 439 | Ignition 1 Voltage |
| 22 | PU | 420 | TCC Brake Switch/Cruise Control Release Signal |
| 23 | OG | 225 | Generator Turn On Signal |
| 24 | BN/WH | 7076 | Charge Indicator Control (KD9/YF2) |
| 25 | D-GN | 603 | A/C Low Pressure Switch Signal (C60) |
| 26-28 | - | - | 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 | YE/BK | 625 | Starter Enable Relay Control |
| 33 | OG/BK | 5764 | EGR Motor High Control |
| 34 | TN | 2759 | Low Reference |
| 35 | - | - | Not Used |
| 36 | PU | 1589 | Fuel Level Sensor Signal |
| 37 | - | - | Not Used |
| 38 | GY | 23 | Generator Field Duty Cycle Signal |
| 39 | OG/BK | 1786 | Park/Neutral Signal |
| 40 | L-BU | 1320 | Stop Lamp Switch Signal (Cutaway) or CHMSL Supply Voltage/Stop Lamp Supply Voltage (Cargo/Passenger) |
| 41 | D-BU | 6863 | Low Reference |
| 42-43 | - | - | Not Used |
| 44 | TN | 2501 | High Speed GMLAN Serial Data Bus (-) |
| 45 | L-BU | 2221 | Signal High - Rear |
| 46 | L-GN/BK | 5746 | EGR Motor Low Control |
| 47 | BN | 6062 | Low Reference |
| 48 | YE | 1578 | Fuel Temperature Sensor Signal |
| 49 | D-BU | 1161 | APP Sensor 1 Signal |
| 50-53 | - | - | Not Used |
| 54 | YE/BK | 1827 | Vehicle Speed Signal |
| 55 | - | - | Not Used |
| 56 | PK | 1020 | Ignition 0 Voltage |
| 57 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus (+) |
| 58 | - | - | Not Used |