Engine Control Module (ECM) C2
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Engine Control Module (ECM) C2 Connector Parts Information
Connector Part Information
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Terminal Part Information
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Engine Control Module (ECM) C2 Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | - | - | Not Used |
| 2 | PU/WH | 6270 | 5-Volt Reference |
| 3 | GY | 2701 | 5-Volt Reference |
| 4 | - | - | Not Used |
| 5 | BN | 582 | TAC Motor Control - 2 |
| 6 | YE | 581 | TAC Motor Control - 1 |
| 7 | - | - | Not Used |
| 8 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 9 | GY | 5493 | Cylinder Shutoff Solenoid Control (3) |
| 10 | D-BU | 5491 | Cylinder Shutoff Solenoid Control (1) |
| 11 | OG | 5494 | Cylinder Shutoff Solenoid Control (4) |
| 12 | GY/WH | 3113 | HO2S Heater Low Control - Bank 1 Sensor 1 |
| 13 | L-GN | 3212 | HO2S Heater Low Control - Bank 2 Sensor 1 |
| 14 | L-GN/BK | 5492 | Cylinder Shutoff Solenoid Control (2) |
| 15 | - | - | Not Used |
| 16 | PU | 5284 | Camshaft Actuator Solenoid Control (L76,L92,LY6) |
| 17 | D-BU/WH | 878 | Fuel Injector 8 Control |
| 18 | TN/WH | 845 | Fuel Injector 5 Control |
| 19 | YE/BK | 846 | Fuel Injector 6 Control |
| 20 | TN | 1744 | Fuel Injector 1 Control |
| 21 | YE | 410 | ECT Sensor Signal |
| 22 | TN | 2761 | Low Reference |
| 23-25 | - | - | Not Used |
| 26 | D-BU | 496 | Knock Sensor 1 Signal |
| 27 | GY | 1716 | Low Reference |
| 28 | - | - | Not Used |
| 29 | L-BU | 1876 | Knock Sensor 2 Signal |
| 30 | GY | 2303 | Low Reference |
| 31 | - | - | Not Used |
| 32 | GY | 23 | Generator Field Duty Cycle Signal |
| 33 | BN | 1174 | Oil Level Switch Signal |
| 34 | BK | 2755 | Low Reference |
| 35 | TN | 2752 | Low Reference |
| 36 | - | - | Not Used |
| 37 | L-GN/BK | 1745 | Fuel Injector 2 Control |
| 38 | PK/BK | 1746 | Fuel Injector 3 Control |
| 39 | L-BU/BK | 844 | Fuel Injector 4 Control |
| 40 | OG/BK | 877 | Fuel Injector 7 Control |
| 41 | GY | 2705 | 5-Volt Reference |
| 42 | - | - | Not Used |
| 43 | GY | 2704 | 5-Volt Reference |
| 44 | D-BU | 6259 | 5-Volt Reference |
| 45-49 | - | - | Not Used |
| 50 | TN/WH | 331 | Oil Pressure Sensor Signal |
| 51 | - | - | Not Used |
| 52 | TN | 2199 | Low Reference (L76, L92, LY6) |
| 53 | OG/BK | 469 | Low Reference |
| 54-55 | - | - | Not Used |
| 56 | TN | 1664 | HO2S Low Signal - Bank 1 Sensor 1 |
| 57 | PU/WH | 1665 | HO2S High Signal - Bank 1 Sensor 1 |
| 58 | L-GN | 432 | MAP Sensor Signal |
| 59 | PU | 1666 | HO2S High Signal - Bank 2 Sensor 1 |
| 60 | TN | 1667 | HO2S Low Signal - Bank 2 Sensor 1 |
| 61 | BN | 25 | Charge Indicator Control/Charge Indicator Signal |
| 62 | - | - | Not Used |
| 63 | PU | 486 | TP Sensor 2 Signal |
| 64 | D-BU/WH | 6265 | CMP Sensor Signal |
| 65 | D-GN | 485 | TP Sensor 1 Signal |
| 66 | BN | 6266 | Low Reference |
| 67 | - | - | Not Used |
| 68 | WH/BK | 6271 | CKP Sensor Signal |
| 69 | GY/BK | 6272 | Low Reference |
| 70 | PU | 2121 | IC 1 Control |
| 71 | PU/WH | 2128 | IC 8 Control |
| 72 | OG | 2127 | IC 7 Control |
| 73 | OG/WH | 2122 | IC 2 Control |
| 74 | L-BU/WH | 2126 | IC 6 Control |
| 75 | D-GN | 2125 | IC 5 Control |
| 76 | D-GN/WH | 2124 | IC 4 Control |
| 77 | L-BU | 2123 | IC 3 Control |
| 78 | BN | 2129 | Low Reference |
| 79 | BN/WH | 2130 | Low Reference |
| 80 | - | - | Not Used |