Engine Control Module (ECM) Connector End View C1
Engine Control Module (ECM) C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus+ |
| 2 | TN | 2501 | High Speed GMLAN Serial Data Bus- |
| 3-4 | - | - | Not Used |
| 5 | TN | 1274 | 5-Volt Reference |
| 6 | - | - | Not Used |
| 7 | WH/BK | 1164 | 5-Volt Reference |
| 8-9 | - | - | Not Used |
| 10 | WH | 1310 | EVAP Canister Vent Solenoid Control |
| 11 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
| 12 | - | - | Not Used |
| 13 | OG | 5371 | Stop Lamp Switch Signal |
| 14 | YE | 447 | Starter Relay Coil Control |
| 15 | PU | 1807 | Class 2 Serial Data (Primary) |
| 16 | PU | 1807 | Class 2 Serial Data (Primary) |
| 17 | PK/BK | 5290 | Ignition 1 Voltage |
| 18 | PK | 239 | Ignition 1 Voltage |
| 19 | PK | 239 | Ignition 1 Voltage |
| 20 | RD/WH | 1440 | Battery Positive Voltage |
| 21 | L-BU | 1162 | APP Sensor 2 Signal |
| 22 | - | - | Not Used |
| 23 | D-GN/WH | 465 | Fuel Pump Relay Control - Primary |
| 24 | BN/WH | 419 | MIL Control |
| 25 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
| 26 | WH | 121 | Engine Speed Signal |
| 27 | D-BU | 1161 | APP Sensor 1 Signal |
| 28 | BN | 818 | Vehicle Speed Signal |
| 29 | YE | 492 | MAF Sensor Signal |
| 30 | PK/WH | 1101 | Damping Lift/Dive Signal (F55) |
| 31 | TN | 2760 | Low Reference |
| 32 | TN | 470 | Low Reference |
| 33 | OG/WH | 812 | 12-Volt Reference or I/P Dimming Voltage Reference |
| 34 | - | - | Not Used |
| 35 | GY | 2700 | 5-Volt Reference |
| 36 | BN | 1271 | Low Reference |
| 37 | PU | 1272 | Low Reference |
| 38-41 | - | - | Not Used |
| 42 | D-BU | 473 | High Speed Cooling Fan Relay Control |
| 43 | BN | 5069 | Main Relay Control |
| 44 | - | - | Not Used |
| 45 | GY | 847 | Extended Travel Brake Switch Signal |
| 46 | YE | 343 | Accessory Voltage |
| 47-48 | - | - | Not Used |
| 49 | YE/BK | 5270 | Traction Control Data Signal |
| 50 | - | - | Not Used |
| 51 | TN | 472 | IAT Sensor Signal |
| 52 | - | - | Not Used |
| 53 | GY | 1884 | Cruise Control Set/Coast and Resume/Accelerate Switch Signal |
| 54 | YE | 5 | Crank Voltage |
| 55 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
| 56 | - | - | Not Used |
Engine Control Module (ECM) C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | TN | 407 | Low Reference |
| 2 | OG | 5280 | HO2S Input Pump Current - Bank 2 Sensor 1 |
| 3 | L-GN | 5278 | HO2S Input Pump Current - Bank 1 Sensor 1 |
| 4 | OG | 5275 | CMP Sensor Signal - Intake Bank 1 |
| 5 | GY | 605 | 5-Volt Reference A |
| 6 | - | - | Not Used |
| 7 | TN | 470 | Low Reference |
| 8 | PU | 486 | TP Sensor Signal 2 |
| 9 | D-GN/WH | 2124 | IC 4 Control |
| 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 | TN | 582 | TAC Motor Control - 2 |
| 16 | GY/WH | 3113 | HO2S Heater Low Control - Bank 1 Sensor 1 |
| 17 | GY | 1716 | Low Reference |
| 18 | TN | 1667 | HO2S Low Reference - Bank 2 Sensor 1 |
| 19 | PU/WH | 1665 | HO2S Reference Voltage - Bank 1 Sensor 1 |
| 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 | IC 6 Control |
| 26 | OG/WH | 2122 | IC 2 Control |
| 27-28 | - | - | Not Used |
| 29 | PK | 5284 | CMP Actuator Solenoid Control - Intake Bank 1 |
| 30 | WH/BK | 5283 | CMP Actuator Solenoid Control - Exhaust Bank 2 |
| 31 | YE | 581 | TAC Motor Control - 1 |
| 32 | L-GN | 3212 | HO2S Heater Low Control - Bank 2 Sensor 1 |
| 33 | D-BU | 496 | Knock Sensor 1 Signal |
| 34 | PU | 1666 | HO2S Reference Voltage - Bank 2 Sensor 1 |
| 35 | WH | 5279 | HO2S Pump Current - Bank 1 Sensor 1 |
| 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 | Oil Pressure Switch Signal |
| 41 | D-GN | 2125 | IC 5 Control |
| 42 | PU | 2121 | IC 1 Control |
| 43 | OG | 225 | Generator Turn On Signal |
| 44 | D-BU/BK | 5041 | IMRC Solenoid Control |
| 45 | D-BU/BK | 844 | Fuel Injector 4 Control |
| 46 | PK/BK | 1746 | Fuel Injector 3 Control |
| 47 | TN/WH | 845 | Fuel Injector 5 Control |
| 48 | L-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 49 | GY/BK | 1798 | Drain Wire |
| 50 | L-BU | 1876 | Knock Sensor 2 Signal |
| 51 | PU/WH | 5281 | HO2S Pump Current - Bank 2 Sensor 1 |
| 52 | TN | 1664 | HO2S Low Reference - Bank 1 Sensor 1 |
| 53 | YE | 5276 | CMP Sensor Signal - Intake Bank 2 |
| 54 | GY | 2701 | 5-Volt Reference C |
| 55 | D-GN | 485 | TP Sensor Signal 1 |
| 56 | OG/BK | 5266 | BARO Sensor Signal |
| 57 | GY | 705 | 5-Volt Reference B |
| 58 | L-BU | 2123 | IC 3 Control |
| 59 | PU/WH | 5024 | CKP Sensor 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 |