Engine Control Module (ECM) Connector End View C3
Engine Control Module (ECM) C3 Connector Parts Information
Connector Part Information
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Terminal Part Information
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Engine Control Module (ECM) C3 Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1-6 | - | - | Not Used |
| 7 | OG | 225 | Generator Turn On Signal |
| 8-9 | - | - | Not Used |
| 10 | TN | 5496 | Cylinder Shutoff Solenoid Control 3 |
| 11 | D-BU | 5491 | Cylinder Shutoff Solenoid Control 1 |
| 12-17 | - | - | Not Used |
| 18 | BN | 1174 | Oil Level Switch Signal |
| 19-20 | - | - | Not Used |
| 21 | BK/WH | 2751 | Low Reference |
| 22 | - | - | Not Used |
| 23 | OG/BK | 469 | Low Reference |
| 24-27 | - | - | Not Used |
| 28 | L-BU/BK | 6297 | Low Reference |
| 29 | GY | 23 | Generator Field Duty Cycle Signal |
| 30-32 | - | - | Not Used |
| 33 | TN | 2501 | High Speed GMLAN Serial Data Bus - |
| 34 | - | - | Not Used |
| 35 | TN | 2761 | Low Reference |
| 36 | - | - | Not Used |
| 37 | GY | 2700 | 5-Volt Reference 1 |
| 38 | - | - | Not Used |
| 39 | GY | 2704 | 5-Volt Reference 1 |
| 40-43 | - | - | Not Used |
| 44 | L-BU | 6295 | 5-Volt Reference 2 |
| 45 | - | - | Not Used |
| 46 | OG/BK | 1786 | Park/Neutral Signal |
| 47 | - | - | Not Used |
| 48 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 49 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
| 50-52 | - | - | Not Used |
| 53 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus + |
| 54 | - | - | Not Used |
| 55 | YE | 410 | ECT Sensor Signal |
| 56 | - | - | Not Used |
| 57 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
| 58 | - | - | Not Used |
| 59 | L-GN | 432 | MAP Sensor Signal |
| 60-65 | - | - | Not Used |
| 66 | OG | 381 | Vehicle Speed Signal |
| 67 | - | - | Not Used |
| 68 | WH | 5497 | Cylinder Shutoff Solenoid Control 2 |
| 69 | OG | 5494 | Cylinder Shutoff Solenoid Control 4 |
| 70-73 | - | - | Not Used |