Engine Control Module (ECM) Connector End Views
Engine Control Module (ECM) C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | TN | 407 | KS Low Reference Bank 2 |
| 2 | - | - | Not Used |
| 3 | L-GN | 5278 | HO2S Input Pump Current Sensor 1 |
| 4 | OG | 5275 | CMP Sensor Signal - Intake Bank 1 |
| 5 | GY | 605 | 5-Volt Reference |
| 6 | - | - | Not Used |
| 7 | TN | 470 | Low Reference |
| 8 | PU | 486 | TP Sensor 2 Signal |
| 9 | D-GN/WH | 2124 | Ignition Control 4 |
| 10 | WH/BK | 5039 | CKP Sensor Signal |
| 11 | - | - | Not Used |
| 12 | OG/BK | 5272 | CMP Actuator Solenoid Control - Intake Bank 2 |
| 13 | L-GN | 5282 | CMP Actuator Solenoid Control - Exhaust Bank 1 |
| 14 | - | - | Not Used |
| 15 | BN | 582 | TAC Motor Control - 2 |
| 16 | GY/WH | 3113 | HO2S Heater Low Control Sensor 1 |
| 17 | GY | 1716 | KS Low Reference Bank 1 |
| 18 | - | - | Not Used |
| 19 | PU/WH | 1665 | HO2S High Signal |
| 20 | D- GN | 5273 | CMP Sensor Signal - Exhaust Bank 1 |
| 21 | GY | 23 | Generator Field Duty Cycle Signal |
| 22 | - | - | Not Used |
| 23 | YE | 410 | ECT Sensor Signal |
| 24 | - | - | Not Used |
| 25 | L-BU/WH | 2126 | Ignition Control 6 |
| 26 | OG/WH | 2122 | Ignition Control 2 |
| 27-28 | - | - | Not Used |
| 29 | PU | 5284 | Actuator Solenoid Control - Intake Bank 1 |
| 30 | WH/BK | 5283 | Actuator Solenoid Control - Exhaust Bank 2 |
| 31 | YE | 581 | TAC Motor Control - 1 |
| 32 | - | - | Not Used |
| 33 | D-BU | 496 | KS Signal Bank 1 |
| 34 | - | - | Not Used |
| 35 | WH | 5279 | HO2S Pump Current |
| 36 | PU | 5274 | CMP Sensor Signal - Exhaust Bank 2 |
| 37 | BN | 1174 | Oil Level Switch Signal |
| 38 | D-GN/WH | 357 | Oil Temperature Sensor Signal |
| 39 | TN | 2752 | Low Reference |
| 40 | TN/BK | 231 | Engine Oil Pressure Switch Signal |
| 41 | D-GN | 2125 | Ignition Control 5 |
| 42 | PU | 2121 | Ignition Control 1 |
| 43 | OG | 225 | Generator Turn On Signal |
| 44 | - | - | Not Used |
| 45 | L-BU/BK | 844 | Fuel Injector 4 Control |
| 46 | PK/BK | 1746 | Fuel Injector 3 Control |
| 47 | TN/WH | 845 | Fuel Injector 5 Control |
| 48 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Valve Control |
| 49 | GY/BK | 1798 | Ground |
| 50 | L-BU | 1876 | KS Signal Bank 2 |
| 51 | - | - | Not Used |
| 52 | TN | 1664 | HO2S Low Signal |
| 53 | YE | 5276 | CMP Sensor Signal Intake Bank 2 |
| 54 | GY | 2701 | 5-Volt Reference |
| 55 | D-GN | 485 | TP Sensor 1 Signal |
| 56 | L-GN/BK | 5266 | MAP Sensor Signal |
| 57 | GY | 705 | 5-Volt Reference |
| 58 | L-BU | 2123 | Ignition Control 3 |
| 59 | PU/WH | 5024 | Low Reference |
| 60-61 | - | - | Not Used |
| 62 | L-GN/BK | 1745 | Fuel Injector 2 Control |
| 63 | TN | 1744 | Fuel Injector 1 Control |
| 64 | YE/BK | 846 | Fuel Injector 6 Control |
Engine Control Module (ECM) C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | PK | 39 | Ignition 1 Voltage |
| 2 | BK/WH | 3122 | HO2S Heater Low Control Sensor 2 |
| 3 | PK | 439 | Ignition 1 Voltage |
| 4 | D-BU | 473 | High Speed Cooling Fan Relay Control |
| 5 | WH | 121 | Engine Speed Signal |
| 6 | - | - | Not Used |
| 7 | WH/BK | 1164 | 5-Volt Reference |
| 8 | PU | 1272 | Low Reference |
| 9 | RD/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
| 10 | WH | 17 | Stop Lamp Switch Signal |
| 11 | TN | 472 | IAT Sensor Signal |
| 12 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
| 13-14 | - | - | Not Used |
| 15 | OG/BK | 463 | Requested Torque Signal |
| 16 | - | - | Not Used |
| 17 | PK | 39 | Ignition 1 Voltage |
| 18 | - | - | Not Used |
| 19 | D-GN/WH | 465 | Fuel Pump Relay Control |
| 20 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
| 21 | - | - | Not Used |
| 22 | D-GN | 389 | Vehicle Speed Signal |
| 23 | D-BU | 6105 | High Speed GMLAN Serial Data Bus + |
| 24 | BN | 5069 | Main Relay Control |
| 25 | BK | 2759 | Low Reference |
| 26 | BK | 2760 | Low Reference |
| 27-28 | - | - | Not Used |
| 29 | PU | 3120 | HO2S High Signal |
| 30-31 | - | - | Not Used |
| 32 | OG/BK | 1786 | Park/Neutral Signal |
| 33 | WH | 1310 | EVAP Canister Vent Solenoid Control |
| 34 | - | - | Not Used |
| 35 | YE/BK | 625 | Starter Enable Relay Control |
| 36 | OG | 540 | Battery Positive Voltage |
| 37 | TN/BK | 464 | Delivered Torque Signal |
| 38 | - | - | Not Used |
| 39 | GY | 2709 | 5-Volt Reference |
| 40 | BN | 1271 | Low Reference |
| 41 | - | - | Not Used |
| 42 | PU | 1589 | Fuel Level Sensor Signal |
| 43 | YE | 492 | MAF Sensor Signal |
| 44 | L-BU | 1162 | APP Sensor 2 Signal |
| 45-47 | - | - | Not Used |
| 48 | D-GN | 1049 | ECM Class 2 Serial Data |
| 49 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
| 50 | BN/WH | 419 | MIL Control |
| 51-54 | - | - | Not Used |
| 55 | L-BU | 6106 | High Speed GMLAN Serial Data Bus - |
| 56 | TN | 1274 | 5-Volt Reference |
| 57 | TN/WH | 3121 | HO2S Low Signal |
| 58 | BN | 1141 | Ignition 3 Voltage |
| 59 | GY | 1884 | Cruise Control Set/Coast and Resume/Accelerate Switch Signal |
| 60 | D-BU | 1161 | APP Sensor 1 Signal |
| 61-64 | - | - | Not Used |