LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2014 >> Terrain SLT, 4D Utility >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> Wiring Systems And Power Management - Component Connector End Views - K20 (X1 - LFX) To K85 >> Component Connector End Views >> K20 Engine Control Module X3 (LFX)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

K20 Engine Control Module X3 (LFX)

GM1650395
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-1813
  • Service Connector: 88988372
  • Description: 73-Way F MX123 34566 Series (GY with BK Case)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Core Crimp Insulation Crimp
I 13575575 J-35616-64B (L-BU) J-38125-213 33467-0005 23 Pins 8-10, 13-16, 23-42, 53-62 - J J
II 13576375 J-35616-35 (VT) J-38125-11A 7116-4152-02 9 2 5
K20 Engine Control Module X3 (LFX)

Pin Size Color Circuit Function Terminal Type ID Option
1-7 - - - Not Occupied - -
8 0.5 YE 410 ECT Sensor Signal I -
9 0.5 TN/BK 231 Oil Pressure Switch Signal I -
10 0.5 PU/WH 6270 5-Volt 2 Reference I -
11-12 - - - Not Occupied - -
13 0.5 L-BU/WH 2126 IC 6 Control I -
14 0.5 D-GN 2125 IC 5 Control I -
15 0.5 BN/WH 2130 Low Reference I -
16 0.5 YE 7301 High Pressure Fuel Pump Actuator High Control I -
17-23 - - - Not Occupied - -
24 0.5 TN 476 Low Reference I -
25 0.5 GY/BK 6272 Low Reference I -
26 0.5 WH/BK 6271 Crankshaft Position Sensor Signal I -
27 0.5 D-GN/WH 2124 Ignition Control (4) I -
28 0.5 L-BU 2123 Ignition Control (3) I -
29 0.5 OG/WH 2122 Ignition Control (2) I -
30 0.5 PU 2121 Ignition Control (1) I -
31 0.5 BN 2129 Low Reference I -
32 0.5 PU 7300 High Pressure Fuel Pump Actuator Low Control I -
33 0.5 OG 5275 Camshaft Position (CMP) Sensor - Intake Bank 1 Signal I -
34 0.5 D-BU 5300 5-Volt 1 Reference I -
35 0.5 D-GN 5273 Camshaft Position (CMP) Sensor - Exhaust Bank 1 Signal I -
36 0.5 YE 5276 Camshaft Position (CMP) Sensor - Intake Bank 2 Signal I -
37 0.5 L-BU 5302 5-Volt 1 Reference I -
38 0.5 PU 5274 Camshaft Position (CMP) Sensor - Exhaust Bank 2 Signal I -
39 0.5 PU 5284 Camshaft Phaser Intake Solenoid (1) I -
40 0.5 L-GN 5282 Camshaft Phaser Exhaust Solenoid (1) I -
41 0.5 WH/BK 5283 Camshaft Phaser Exhaust Solenoid (2) I -
42 0.5 OG/BK 5272 Camshaft Phaser Intake Solenoid (2) I -
43-45 - - - Not Occupied - -
46 0.75 L-BU 4804 Fuel Injector 4 Control I -
47 0.75 WH/D-GN 4805 Fuel Injector 5 Control I -
48 0.75 D-BU 4802 Fuel Injector 2 Control I -
49 - - - Not Occupied - -
50 0.75 L-GN 4803 Fuel Injector 3 Control I -
51 0.75 PU 4806 Fuel Injector 6 Control I -
52 0.75 BN 4801 Fuel Injector 1 Control I -
53 0.5 TN 5301 Low Reference I -
54 0.5 YE/BK 5297 5-Volt 1 Reference I -
55 0.5 GY 5296 Low Reference I -
56 0.5 BN/WH 5303 Low Reference I -
57 0.5 L-GN 5298 5-Volt 1 Reference I -
58 0.5 BN 5299 Low Reference I -
59 0.5 BN 6753 Low Reference I -
60 0.5 BN/WH 6754 Low Reference I -
61 0.5 D-BU 6755 Low Reference I -
62 0.5 D-BU/WH 6756 Low Reference I -
63-65 - - - Not Occupied - -
66 0.75 L-BU/WH 4904 Fuel Injector 4 Control I -
67 0.75 L-GN/WH 4905 Fuel Injector 5 Control I -
68 0.75 D-BU/WH 4902 Fuel Injector 2 Control I -
69 - - - Not Occupied - -
70 0.75 D-GN/GY 4903 Fuel Injector 3 Control I -
71 0.75 PU/WH 4906 Fuel Injector 6 Control I -
72 0.75 BN/WH 4901 Fuel Injector 1 Control I -
73 2 BK/WH 451 Ground II -