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Engine Control Module (ECM) X2 (LNJ)

Fig 1: Engine Control Module (ECM) X2 (LNJ) Connector End View
GM1830236Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X2 (LNJ)

Pin Wire Circuit Function
1 - - Not Used
2 0.5 PU/WH 6270 5-Volt Reference 2
3 0.5 GY 2701 5-Volt Reference 2
4 - - Not Used
5 0.8 BN 582 Throttle Actuator Control (TAC) Motor Control - 2
6 0.8 YE 581 Throttle Actuator Control (TAC) Motor Control - 1
7 - - Not Used
8 0.5 D-GN/WH 428 EVAP Canister Purge Solenoid Control
9-11 - - Not Used
12 0.5 GY/WH 3113 HO2S 1 Heater Low Control
13-14 - - Not Used
15 0.5 OG 1676 EGR Solenoid High Control
16 - - Not Used
17 0.5 L-GN/BK 1745 Fuel Injector 2 Control
18 0.5 YE/BK 846 Fuel Injector 6 Control
19 0.5 TN/WH 845 Fuel Injector 5 Control
20 0.5 TN 1744 Fuel Injector 1 Control
21 0.5 YE 410 Engine Coolant Temperature Sensor Signal
22-25 - - Not Used
26 0.5 D-BU 496 Knock Sensor 1 Signal
27 0.5 GY 1716 Knock Sensor 1 Signal
28 - - Not Used
29 0.5 L-BU 1876 Knock Sensor 2 Signal
30 0.5 GY 2303 Knock Sensor 2 Signal
31 - - Not Used
32 0.5 GY 23 Generator Field Duty Cycle Signal
33-34 - - Not Used
35 0.5 TN 2752 Low Reference
36 - - Not Used
37 0.5 L-BU/BK 844 Fuel Injector 4 Control
38-39 - - Not Used
40 0.5 PK/BK 1746 Fuel Injector 3 Control
41 - - Not Used
42 0.5 GY 5047 5-Volt Reference 1
43 0.5 GY 2704 5-Volt Reference 1
44 0.5 D-BU 6259 5-Volt Reference 1
45 - - Not Used
46 0.5 GY 435 EGR Solenoid Low Control
47-52 - - Not Used
53 0.5 OG/BK 469 Low Reference
54 0.5 TN 2753 Low Reference
55 0.5 BN 1456 EGR Valve Position Signal
56 0.5 TN/WH 1653 HO2S Low Signal - Bank 1 Sensor 1
57 0.5 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1
58 0.5 L-GN 432 Manifold Absolute Pressure (MAP) Sensor Signal
59-60 - - Not Used
61 0.5 OG 225 Generator Turn On Signal
62 - - Not Used
63 0.5 PU 486 Throttle Position Sensor 2 Signal
64 0.5 BN/WH 633 Camshaft Position Sensor (CMP) Signal
65 0.5 D-GN 485 Throttle Position Sensor 1 Signal
66 0.5 TN 407 Low Reference
67 - - Not Used
68 0.5 WH/BK 6271 Crankshaft Position Sensor Signal
69 0.5 GY/BK 6272 Low Reference
70 0.5 PU 2121 IC 1 Control
71 0.5 OG/WH 2122 IC 2 Control
72 0.5 L-BU 2123 IC 3 Control
73-77 - - Not Used
78 0.5 YE 2174 Low Reference
79 - - Not Used
80 0.5 TN/BK 231 Oil Pressure Switch Signal
Connector Part Information 
  • OEM: 34566-0803
  • Service: 19115670
  • Description: 80-Way F Receptacle 0.64 2.8 Sealed (GY)
Terminal Part Information 
  • Pins: 2, 3, 5, 6, 8, 12, 15, 17-21, 26-32, 35, 37, 40, 42-44, 46, 53-58, 61, 63-66, 68-72, 78, 80
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: Pins 2, 3, 8, 12, 15, 17-21, 26-32, 35, 37, 40, 42-44, 46, 53-58, 61, 63-66, 68-72, 78, 80 - J/J
  • Core/Insulation Crimp: Pins 5-6 - K/K
  • Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)
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