Engine Control Module (ECM) X3 (LF1) Connector End View
Courtesy of GENERAL MOTORS CORP. Engine Control Module (ECM) X3 (LF1)
| Pin |
Wire |
Circuit |
Function |
| 1 |
0.5 TN/WH |
331 |
Oil Pressure Sensor Signal |
| 2 |
0.5 GY |
596 |
5-Volt Reference 1 |
| 3-7 |
- |
- |
Not Used |
| 8 |
0.5 YE |
410 |
Engine Coolant Temperature (ECT) Sensor Signal |
| 9 |
- |
- |
Not Used |
| 10 |
0.5 GY |
605 |
5-Volt Reference2 |
| 11-12 |
- |
- |
Not Used |
| 13 |
0.5 L-BU/WH |
2126 |
IC 6 Control |
| 14 |
0.5 D-GN |
2125 |
IC 5 Control |
| 15 |
0.5 BN/WH |
2130 |
Low Reference |
| 16 |
0.75 YE |
7301 |
High Pressure Fuel Pump Actuator Solenoid Control |
| 17 |
0.5 TN |
470 |
Low Reference |
| 18-23 |
- |
- |
Not Used |
| 24 |
0.5 TN |
476 |
Low Reference |
| 25 |
0.5 TN |
452 |
Low Reference |
| 26 |
0.5 YE |
573 |
CKP Sensor Signal |
| 27 |
0.5 D-GN/WH |
2124 |
IC 4 Control |
| 28 |
0.5 L-BU |
2123 |
IC 3 Control |
| 29 |
0.5 OG/WH |
2122 |
IC 2 Control |
| 30 |
0.5 PU |
2121 |
IC 1 Control |
| 31 |
0.5 BN |
2129 |
Low Reference |
| 32 |
0.75 PU |
7300 |
High Pressure Fuel Pump Actuator Low Control |
| 33 |
0.5 OG |
5275 |
CMP Sensor Signal |
| 34 |
0.5 D-BU |
5300 |
5-Volt Reference 1 |
| 35 |
0.5 D-GN |
5273 |
CMP Sensor Signal Exhaust - Bank 1 |
| 36 |
0.5 YE |
5276 |
CMP Sensor Signal Intake - Bank 2 |
| 37 |
0.5 L-BU |
5302 |
5-Volt Reference 1 |
| 38 |
0.5 PU |
5274 |
CMP Sensor Signal Exhaust - Bank 2 |
| 39 |
0.5 PU |
5284 |
Low Reference |
| 40 |
0.5 L-GN |
5282 |
Low Reference |
| 41 |
0.5 OG/BK |
5272 |
CMP Actuator Solenoid Control - Intake Bank 2 |
| 42 |
0.5 WH/BK |
5283 |
CMP Actuator Solenoid Control - Exhaust Bank 2 |
| 43-45 |
- |
- |
Not Used |
| 46 |
0.75 BU |
4804 |
Low Reference |
| 47 |
0.75 GN |
4805 |
Low Reference |
| 48 |
0.75 BU |
4802 |
Low Reference |
| 49 |
- |
- |
Not Used |
| 50 |
0.75 GN |
4803 |
Low Reference |
| 51 |
0.75 PU |
4806 |
Low Reference |
| 52 |
0.75 BN |
4801 |
Low Reference |
| 53 |
0.5 TN |
5301 |
Low Reference |
| 54 |
0.5 YE/BK |
5297 |
5-Volt Reference 1 |
| 55 |
0.5 GY |
5296 |
Low Reference |
| 56 |
0.5 BN/WH |
5303 |
Low Reference |
| 57 |
0.5 L-GN |
5298 |
5-Volt Reference 1 |
| 58 |
0.5 BN |
5299 |
Low Reference |
| 59 |
0.5 BN |
6753 |
Low Reference |
| 60 |
0.5 BN/WH |
6754 |
Low Reference |
| 61 |
0.5 D-BU |
6755 |
Low Reference |
| 62 |
0.5 D-BU/WH |
6756 |
Low Reference |
| 63-65 |
- |
- |
Not Used |
| 66 |
0.75 BU/WH |
4904 |
Fuel Injector 4 Control |
| 67 |
0.75 GN/WH |
4905 |
Fuel Injector 5 Control |
| 68 |
0.75 BU/WH |
4902 |
Fuel Injector 2 Control |
| 69 |
- |
- |
Not Used |
| 70 |
0.75 GN/WH |
4903 |
Fuel Injector 3 Control |
| 71 |
0.75 PU/WH |
4906 |
Fuel Injector 6 Control |
| 72 |
0.75 BN/WH |
4901 |
Fuel Injector 1 Control |
| 73 |
2 BK/WH |
1551 |
Ground |
Connector Part Information
- Harness Type: Engine
- OEM Connector: 12582678
- Service Connector: 88988372
- Description: 73-Way F 0.64 2.8 Series, Sealed (BK)
|
Terminal Part Information
- Pins: 1, 2, 8, 10, 13-15, 17, 24, 25-31, 33-42, 53-62
- Terminated Lead: 13575575
- Release Tool: J-38125-213
- Diagnostic Test Probe: J-35616-64B (L-BU)
- Terminal/Tray: 33467-0005/23
- Core/Insulation Crimp: J/J
- Pins: 16, 32, 46-48, 50-52, 66-68, 70-72
- Terminated Lead: 13575575
- Release Tool: J-38125-213
- Diagnostic Test Probe: J-35616-64B (L-BU)
- Terminal/Tray: 33467-0005/23
- Core/Insulation Crimp: K/K
- Pins: 73
- Terminated Lead: SEALED: 13576392 UNSEALED: 13575797
- Release Tool: J-38125-11A
- Diagnostic Test Probe: J-35616-35 (VT)
- Terminal/Tray: 7116-4152-02/9
- Core/Insulation Crimp: 2/5
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