Engine Control Module (ECM) X2 (LAT)
Courtesy of GENERAL MOTORS CORP. Engine Control Module (ECM) X2 (LAT)
| Pin |
Wire |
Circuit |
Function |
| 1 |
0.5 PU |
2121 |
IC 1 Control |
| 2 |
0.5 TN/WH |
3111 |
HO2S Low Signal Sensor 1 |
| 3 |
0.5 PU/WH |
3110 |
HO2S High Signal Sensor 1 |
| 4 |
0.5 PU |
3120 |
HO2S High Signal Sensor 2 |
| 5 |
0.5 TN/WH |
3121 |
HO2S Low Signal Sensor 2 |
| 6-7 |
- |
- |
Not Used |
| 8 |
0.5 D-BU |
496 |
KS Signal |
| 9 |
0.5 GY |
1716 |
KS Signal |
| 10 |
- |
- |
Not Used |
| 11 |
0.5 YE |
581 |
TAC Motor Control - 1 |
| 12 |
0.5 BN |
582 |
TAC Motor Control - 2 |
| 13 |
0.8 PK/BK |
6341 |
Ignition 1 Voltage |
| 14 |
0.5 PU |
5284 |
CMP Control |
| 15-16 |
- |
- |
Not Used |
| 17 |
0.5 L-BU |
2123 |
IC 3 Control |
| 18-19 |
- |
- |
Not Used |
| 20 |
0.5 PU |
6267 |
Low Reference |
| 21-22 |
- |
- |
Not Used |
| 23 |
0.5 BN |
6266 |
Low Reference |
| 24-26 |
- |
- |
Not Used |
| 27 |
0.5 PU |
574 |
Low Reference |
| 28 |
- |
- |
Not Used |
| 29 |
0.5 TN |
2752 |
Low Reference |
| 30 |
0.5 BN/WH |
6754 |
Low Reference |
| 31 |
- |
- |
Not Used |
| 32 |
0.5 L-GN/BK |
1745 |
Fuel Injector 2 Control |
| 33 |
0.5 D-GN/WH |
2124 |
IC 4 Control |
| 34 |
- |
- |
Not Used |
| 35 |
0.5 BN |
2129 |
Low Reference |
| 36 |
0.5 D-GN |
6457 |
5-Volt Reference 1 |
| 37-38 |
- |
- |
Not Used |
| 39 |
0.5 D-BU |
6259 |
5-Volt Reference 1 |
| 40-41 |
- |
- |
Not Used |
| 42 |
0.5 TN |
2760 |
Low Reference |
| 43 |
0.5 L-GN |
2867 |
5-Volt Reference |
| 44 |
0.5 GY |
2701 |
5-Volt Reference 2 |
| 45 |
- |
- |
Not Used |
| 46 |
0.5 BN |
6753 |
Low Reference |
| 47 |
- |
- |
Not Used |
| 48 |
0.5 PK/BK |
1746 |
Fuel Injector 3 Control |
| 49 |
- |
- |
Not Used |
| 50 |
0.5 L-GN |
5282 |
CMP Control |
| 51-52 |
- |
- |
Not Used |
| 53 |
0.5 OG/WH |
2122 |
IC 2 Control |
| 54-55 |
- |
- |
Not Used |
| 56 |
0.5 D-GN/WH |
6264 |
CMP Sensor Signal |
| 57-58 |
- |
- |
Not Used |
| 59 |
0.5 D-BU/WH |
6265 |
CMP Sensor Signal |
| 60-61 |
- |
- |
Not Used |
| 62 |
0.5 L-BU |
6289 |
IAT Sensor Signal |
| 63 |
0.5 YE |
573 |
CKP Sensor 1 Signal |
| 64 |
0.5 D-GN |
485 |
TP Sensor 1 Signal |
| 65 |
- |
- |
Not Used |
| 66 |
0.5 PU |
486 |
TP Sensor 2 Signal |
| 67 |
0.5 YE |
492 |
MAF Sensor Signal |
| 68 |
0.5 GY/WH |
3113 |
HO2S Heater Low Control Sensor 1 |
| 69 |
0.5 GY/WH |
3122 |
HO2S Heater Low Control Sensor 2 |
| 70 |
- |
- |
Not Used |
| 71 |
0.5 L-BU/BK |
844 |
Fuel Injector 4 Control |
| 72 |
0.5 TN |
1744 |
Fuel Injector 1 Control |
| 73 |
3 BK/WH |
251 |
Ground |
Connector Part Information
- OEM: 12582677
- Service: See Catalog
- Description: 73-Way F 0.64 2.8 Series, Sealed (GY)
|
Terminal Part Information
- Terminal/Tray: See Terminal Repair Kit
- Core/Insulation Crimp: See Terminal Repair Kit
- Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
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