Engine Control Module (ECM) X2 (L61)
Courtesy of GENERAL MOTORS CORP. Engine Control Module (ECM) X2 (L61)
| Pin |
Wire |
Circuit |
Function |
| 1 |
- |
- |
Not Used |
| 2 |
0.35 BN/WH |
6331 |
AIR Solenoid Signal (NU6) |
| 3 |
0.5 PU |
421 |
AIR Solenoid Relay Control (NU6) |
| 4 |
0.35 TN |
2761 |
Low Reference |
| 5 |
0.5 PU |
574 |
Low Reference |
| 6 |
0.35 TN |
1744 |
Fuel Injector (1) Control |
| 7 |
0.35 PK/BK |
1746 |
Fuel Injector (3) Control |
| 8 |
0.35 L-BU/BK |
844 |
Fuel Injector (4) Control |
| 9 |
0.35 BN |
2129 |
Low Reference |
| 10 |
0.35 L-GN/BK |
1745 |
Fuel Injector (2) Control |
| 11-12 |
- |
- |
Not Used |
| 13 |
0.35 GY/BK |
2704 |
5-Volt Reference 1 |
| 14-15 |
- |
- |
Not Used |
| 16 |
0.5 YE |
581 |
TAC Motor Control (1) |
| 17-19 |
- |
- |
Not Used |
| 20 |
0.5 TN |
5301 |
Low Reference |
| 21 |
- |
- |
Not Used |
| 22 |
0.35 PU |
2121 |
Ignition Control (1) |
| 23 |
0.35 L-BU |
2123 |
Ignition Control (3) |
| 24 |
0.35 D-GN/WH |
2124 |
Ignition Control (4) |
| 25 |
- |
- |
Not Used |
| 26 |
0.35 OG/WH |
2122 |
Ignition Control (2) |
| 27-29 |
- |
- |
Not Used |
| 30 |
0.35 D-GN/WH |
428 |
EVAP Canister Purge Solenoid Control |
| 31 |
0.35 OG |
225 |
Generator Turn On Signal |
| 32 |
0.5 BN |
582 |
TAC Motor Control (2) |
| 33 |
0.5 D-BU |
5300 |
5-Volt Reference 1 |
| 34 |
- |
- |
Not Used |
| 35 |
0.5 GY |
6255 |
5-Volt Reference 1 |
| 36 |
- |
- |
Not Used |
| 37 |
0.5 PU/WH |
3110 |
Heated Oxygen Sensor High Signal Sensor 1 |
| 38 |
0.5 PU |
3120 |
Heated Oxygen Sensor High Signal Sensor 2 |
| 39 |
0.5 L-GN |
432 |
Manifold Absolute Pressure Sensor Signal |
| 40 |
0.5 TN |
2752 |
Low Reference |
| 41 |
0.5 PU/WH |
6256 |
Low Reference |
| 42 |
0.35 TN |
2760 |
Low Reference |
| 43 |
0.35 GY/WH |
23 |
Generator Field Duty Cycle Signal |
| 44 |
- |
- |
Not Used |
| 45 |
0.5 YE |
573 |
Crankshaft Position Sensor Signal |
| 46 |
0.5 OG |
5275 |
CMP Sensor Signal |
| 47 |
- |
- |
Not Used |
| 48 |
0.5 TN/WH |
3111 |
Heated Oxygen Sensor Low Signal Sensor 1 |
| 49 |
0.5 OG/BK |
469 |
Low Reference |
| 50 |
0.5 GY |
1716 |
Knock Sensor Signal |
| 51 |
0.5 D-BU |
496 |
Knock Sensor Signal |
| 52 |
- |
- |
Not Used |
| 53 |
0.5 GY |
2701 |
5-Volt Reference 2 |
| 54 |
0.5 L-GN |
2867 |
5-Volt Reference 2 |
| 55 |
0.5 WH |
6452 |
5-Volt Reference 1 (NU6) |
| 56 |
- |
- |
Not Used |
| 57 |
0.5 D-GN |
485 |
Throttle Position Sensor (1) Signal |
| 58 |
0.35 YE |
410 |
Engine Coolant Temperature Sensor Signal |
| 59 |
0.5 PU |
486 |
Throttle Position Sensor (2) Signal |
| 60-63 |
- |
- |
Not Used |
| 64 |
0.35 TN |
407 |
Low Reference (NU6) |
| 65 |
0.5 GY/WH |
3113 |
Heated Oxygen Sensor Heater Low Control Sensor 1 |
| 66 |
0.5 GY/WH |
3122 |
Heated Oxygen Sensor Heater Low Control Sensor 2 |
| 67 |
0.35 TN/BK |
231 |
Oil Pressure Switch Signal |
| 68 |
0.5 TN/WH |
3121 |
Heated Oxygen Sensor Low Signal Sensor 2 |
| 69-72 |
- |
- |
Not Used |
| 73 |
2 BK/WH |
451 |
Signal Ground |
Connector Part Information
- OEM: 13577506
- Service: See Catalog
- Description: 73-Way F MX 123 Series Sealed (GY)
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Terminal Part Information
- Pins: 73
- Terminal/Tray: See Terminal Repair Kit
- Core/Insulation Crimp: See Terminal Repair Kit
- Release Tool/Test Probe: See Terminal Repair Kit
- Pins: 5, 9, 13, 20, 22-24, 26, 30-31, 33, 35, 39, 41-43, 45-46, 49-51, 54, 58, 67
- Terminal/Tray: 33467-0005/23
- Core/Insulation Crimp: C
- Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
- Pins: 6-8, 10, 16, 32, 37-38, 40, 48, 53, 57, 59, 65-66, 68
- Terminal/Tray: 33467-0003/23
- Core/Insulation Crimp: C
- Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
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