Engine Control Module (ECM) X2 (LE8/LE9) Connector End View
Courtesy of GENERAL MOTORS COMPANY Engine Control Module (ECM) X2 (LE8/LE9)
| Pin |
Wire |
Circuit |
Function |
| 1-3 |
- |
- |
Not Used |
| 4 |
0.5 TN |
2761 |
Low Reference |
| 5 |
0.5 PU |
574 |
Low Reference |
| 6 |
0.5 TN |
1744 |
Fuel Injector 1 Control |
| 7 |
0.5 PK/BK |
1746 |
Fuel Injector 3 Control |
| 8 |
0.5 L-BU/BK |
844 |
Fuel Injector 4 Control |
| 9 |
0.35 BN |
2129 |
Low Reference |
| 10 |
0.5 L-GN/BK |
1745 |
Fuel Injector 2 Control |
| 11-12 |
- |
- |
Not Used |
| 13 |
0.35 GY |
2704 |
5-Volt Reference -1 |
| 14 |
0.5 L-GN |
5282 |
Exhaust Cam Solenoid Control (LE5) |
| 15 |
0.5 PU |
5284 |
Intake Cam Solenoid Control (LE5) |
| 16 |
0.5 YE |
581 |
TAC Motor Control - 1 |
| 17-19 |
- |
- |
Not Used |
| 20 |
0.5 TN |
5301 |
Camshaft Position Intake Sensor Low Reference |
| 21 |
0.5 GY |
5296 |
Camshaft Position Exhaust Sensor Low Reference (LE5) |
| 22 |
0.35 PU |
2121 |
IC 1 Control |
| 23 |
0.35 L-BU |
2123 |
IC 3 Control |
| 24 |
0.35 D-GN/WH |
2124 |
IC 4 Control |
| 25 |
- |
- |
Not Used |
| 26 |
0.35 OG/WH |
2122 |
IC 2 Control |
| 27-29 |
- |
- |
Not Used |
| 30 |
0.5 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 |
Camshaft Position Intake Sensor Reference Voltage - 1 |
| 34 |
0.5 YE/BK |
5297 |
Camshaft Position Exhaust Sensor Reference Voltage -1 (LE5) |
| 35 |
0.5 GY |
6255 |
5-Volt Reference - 1 |
| 36 |
- |
- |
Not Used |
| 37 |
0.5 PU/WH |
3110 |
HO2S Reference Voltage (Bank 1 Sensor 1) |
| 38 |
0.5 PU |
3120 |
HO2S High Signal (Bank 1 Sensor 2) |
| 39 |
0.35 L-GN |
432 |
MAP Sensor Signal |
| 40 |
0.35 TN |
2752 |
Low Reference |
| 41 |
0.5 PU/WH |
6256 |
Low Reference |
| 42 |
0.35 TN |
2760 |
Low Reference |
| 43 |
0.35 GY |
23 |
Generator Field Duty Cycle Signal |
| 44 |
- |
- |
Not Used |
| 45 |
0.5 YE |
573 |
CKP Sensor 1 Signal |
| 46 |
0.5 OG |
5275 |
Camshaft Position Intake Sensor |
| 47 |
0.5 D-GN |
5273 |
Camshaft Position Exhaust Sensor (LE5) |
| 48 |
0.5 TN/WH |
3111 |
HO2S Low Reference (Bank 1 Sensor 1) |
| 49 |
0.35 OG/BK |
469 |
Low Reference |
| 50 |
0.5 GY |
1716 |
Knock Sensor Signal Return |
| 51 |
0.5 D-BU |
496 |
Knock Sensor Signal |
| 52 |
- |
- |
Not Used |
| 53 |
0.35 GY |
2701 |
5-Volt Reference -2 |
| 54 |
0.5 L-GN |
2867 |
5-Volt Reference -2 |
| 55-56 |
- |
- |
Not Used |
| 57 |
0.35 D-GN |
485 |
TP Sensor 1 Signal |
| 58 |
0.5 YE |
410 |
ECT Sensor Signal |
| 59 |
0.35 PU |
486 |
TP Sensor 2 Signal |
| 60 |
0.5 BN |
6753 |
Intake Cam Solenoid Return (LE5) |
| 61 |
0.5 BN/WH |
6754 |
Exhaust Cam Solenoid Return (LE5) |
| 62-64 |
- |
- |
Not Used |
| 65 |
0.5 GY/WH |
3113 |
HO2S Heater Low Control - Bank 1 Sensor 1 |
| 66 |
0.5 GY/WH |
3122 |
HO2S Heater Low Control - Bank 1 Sensor 2 |
| 67 |
0.5 TN/BK |
231 |
Oil Pressure Switch Signal |
| 68 |
0.5 TN/WH |
3121 |
HO2S Heater Low Control - Bank 1 Sensor 1 |
| 69-72 |
- |
- |
Not Used |
| 73 |
2 BK/WH |
451 |
Signal Ground |
Connector Part Information
- Harness: Engine
- OEM: 34566-1423
- Service: 88988372
- Description: 73-Way F MX123 34566 Series (BK)
|
Terminal Part Information
- Pins 9, 13 22-24, 26, 31, 39, 40, 42, 43, 49-51, 53, 57, 59
- Terminal/Tray: 33467-0003/23
- Core/Insulation Crimp: H/H
- Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
- Pins 4-8, 10, 14-16, 20, 21, 30, 32-38, 41, 45-48, 54, 58, 60-68
- Terminal/Tray: 33467-0005/23
- Core/Insulation Crimp: J/J
- Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
- Pin 73
- Terminal/Tray: 7116-4152-02/9
- Core/Insulation Crimp: 2/5
- Release Tool/Test Probe: 12094430/J-35616-35 (VT)
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