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 | WH | 17 | Stop Lamp Switch Signal |
| 14 | YE/BK | 625 | Starter Enable Relay Control |
| 15-16 | - | - | Not Used |
| 17 | PK | 439 | Ignition 1 Voltage |
| 18 | PK | 1439 | Ignition 1 Voltage |
| 19 | PK | 1439 | Ignition 1 Voltage |
| 20 | RD/WH | 2440 | Battery Positive Voltage |
| 21 | L-BU | 1162 | APP Sensor 2 Signal |
| 22 | - | - | Not Used |
| 23 | D-GN/WH | 465 | Fuel Pump Relay Control |
| 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 | D-GN/WH | 817 | Vehicle Speed Signal |
| 29 | YE | 492 | MAF Sensor Signal |
| 30 | - | - | Not Used |
| 31 | TN | 2760 | Low Reference |
| 32 | BK/WH | 2751 | Low Reference |
| 33 | OG/BK | 812 | 12-Volt Reference |
| 34 | - | - | Not Used |
| 35 | GY | 2700 | 5-Volt Reference |
| 36 | BN | 1271 | Low Reference |
| 37 | PU | 1272 | Low Reference |
| 38-42 | - | - | Not Used |
| 43 | WH/BK | 448 | Powertrain Diagnostic Enable |
| 44-45 | - | - | Not Used |
| 46 | YE | 43 | Accessory Voltage |
| 47 | - | - | Not Used |
| 48 | BN | 5546 | Fuel Pump Speed Control Feedback Signal |
| 49-50 | - | - | Not Used |
| 51 | TN/BK | 472 | IAT Sensor Signal |
| 52-54 | - | - | Not Used |
| 55 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
| 56 | - | - | Not Used |