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Home >> Buick >> 2013 >> Verano Premium, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Wiring Systems And Power Management - Component Connector End Views - G24 Through M46) >> Component Connector End Views >> K20 Engine Control Module X3 (LHU) Connector End View
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K20 Engine Control Module X3 (LHU) Connector End View

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: K20 Engine Control Module X3 (LHU) Connector End View
GM1590596Courtesy of GENERAL MOTORS CORP.
K20 Engine Control Module X3 (LHU)

Pin Wire Circuit Function
1-7 - - Not Used
8 0.5 YE 410 Engine Coolant Temperature Sensor Signal
9 0.5 TN/BK 231 Oil Pressure Switch Signal
10 0.5 PU/WH 6270 5-Volt Reference 2
11-15 - - Not Used
16 0.5 YE 7301 High Pressure Fuel Pump Actuator High Control
17-23 - - Not Used
24 0.5 TN 2761 Low Reference
25 0.5 GY/BK 6272 Low Reference
26 0.5 WH/BK 6271 Crankshaft Sensor Signal (1)
27 0.5 OG/WH 2122 Ignition Control (2)
28 0.5 D-GN/WH 2124 Ignition Control (4)
29 0.5 L-BU 2123 Ignition Control (3)
30 0.5 PU 2121 Ignition Control (1)
31 0.5 BN 2129 Low Reference
32 0.5 PU 7300 High Pressure Fuel Pump Actuator Low Control
33 0.5 OG 5275 Camshaft Position Intake Sensor (1)
34 0.5 D-BU 5300 5-Volt Reference 1
35 0.5 D-GN 5273 Camshaft Position Exhaust Sensor (1)
36-38 - - Not Used
39 0.5 PU 5284 Camshaft Phaser Intake Solenoid (1)
40 0.5 L-GN 5282 Camshaft Phaser Exhaust Solenoid (1)
41-45 - - Not Used
46 0.75 D-BU 4802 Direct Fuel Injector (DFI) High Voltage Control Cylinder 2
47 - - Not Used
48 0.75 D-GN 4803 Direct Fuel Injector (DFI) High Voltage Control Cylinder 3
49 - - Not Used
50 0.75 L-BU 4804 Direct Fuel Injector (DFI) High Voltage Control Cylinder 4
51 - - Not Used
52 0.75 BN 4801 Direct Fuel Injector (DFI) High Voltage Control Cylinder 1
53 0.5 TN 5301 Low Reference
54 0.5 YE/BK 5297 5-Volt Reference 1
55 0.5 GY 5296 Low Reference
56-58 - - Not Used
59 0.5 BN 6753 Low Reference
60 0.5 BN/WH 6754 Low Reference
61-65 - - Not Used
66 0.75 D-BU/WH 4902 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2
67 - - Not Used
68 0.75 D-GN/WH 4903 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3
69 - - Not Used
70 0.75 L-BU/WH 4904 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 4
71 - - Not Used
72 0.75 BN/WH 4901 Direct Fuel Injector (DFI) High Voltage Supply Cylinder 1
73 2.5 BK/WH 151 Ground
Connector Part Information 
  • Harness Type: Engine
  • OEM Connector: 12582678
  • Service Connector: 88988372
  • Description: 73-Way F 0.64 2.8 Series, Sealed (BK with GY Terminal Position Assurance Lock)
Terminal Part Information 
  • Pins: 8-10, 16, 24-35, 39-40, 53-55, 59-60
  • Terminated Lead: Pending
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Pins: 46, 48, 50, 52, 66, 68, 70, 72
  • Terminated Lead: Pending
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: K/K
  • Pins: 73
  • Terminated Lead: 13576392
  • Release Tool: J-38125-11A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 7116-4152-02/9
  • Core/Insulation Crimp: A/5
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