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K20 Engine Control Module X2 (LAF) 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 X2 (LAF) Connector End View
GM1673472Courtesy of GENERAL MOTORS CORP.
K20 Engine Control Module X2 (LAF)

Pin Wire Circuit Function
1-2 - - Not Available
3 0.5 TN 808 Low Reference
4-9 - - Not Available
10 0.5 PU/WH 3110 Heated Oxygen Sensor High Signal Bank 1 Sensor (1)
11 - - Not Available
12 0.5 PU 3120 Heated Oxygen Sensor High Signal Bank 1 Sensor (2)
13-15 - - Not Available
16 0.8 BN 582 Throttle Actuator Control Close
17 - - Not Available
18 0.5 GY 598 5-Volt Reference 1
19 0.5 YE 2918 Fuel Rail Pressure Sensor Signal
20-25 - - Not Available
26 0.5 TN/WH 3111 Heated Oxygen Sensor Low Signal Bank 1 Sensor (1)
27 - - Not Available
28 0.5 TN/WH 3121 Heated Oxygen Sensor Low Signal Bank 1 Sensor (2)
29-31 - - Not Available
32 0.5 YE 581 Throttle Actuator Control Open
33 0.5 D-GN 485 Throttle Position Sensor Signal (1)
34 0.5 GY 2701 5-Volt Reference 4
35 0.5 PU 486 Throttle Position Sensor Signal (2)
36 0.5 D-BU 496 Knock Sensor Signal (1)
37-40 - - Not Available
41 0.5 GY/WH 3113 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (1)
42 0.5 GY/WH 3122 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (2)
43 0.5 L-GN 432 Manifold Absolute Pressure Sensor Signal
44 0.5 GY 2704 5-Volt Reference 3
45-48 - - Not Available
49 0.5 L-BU 6289 Induction Air Temperature Sensor Signal
50 - - Not Available
51 0.5 D-GN/WH 428 EVAP Canister Purge Solenoid Control
52 0.5 YE 492 Mass Air Flow Sensor Signal
53 0.5 BN 25 Charge Indicator Control
54 0.5 TN 2752 Low Reference
55 0.5 GY 23 Generator Field Duty Cycle Signal
56 0.5 GY 1716 Knock Sensor (1)
57 - - Not Available
58 0.5 OG/BK 1786 Transmission Park/Neutral Signal (1)
59-62 - - Not Available
63 0.5 OG/BK 469 Low Reference
64-68 - - Not Available
69 0.5 TN 2760 Low Reference
70-72 - - Not Available
73 2 BK/WH 451 Signal Ground
Connector Part Information 
  • Harness Type: Engine
  • OEM Connector: 13705618
  • Service Connector: 13577391
  • Description: 73-Way F Sealed (BK) with (BK) case
Terminal Part Information 
  • Pin: 73
  • Terminated Lead: Pending
  • Release Tool: 12094429
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 1326030-8/17
  • Core/Insulation Crimp: A/4
  • Pin: All Others
  • 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
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