K20 Engine Control Module X2 (LUK without NU6)

2013 Buick Regal Turbo Premium, Standard TransSECTION K20 Engine Control Module X2 (LUK without NU6)
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
GM1590596
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 15499466
  • Service Connector: 88988931
  • Description: 73-Way F MX123 Series, Sealed (BK with BK Terminal Position Assurance Lock)
Terminal Part Information
  • Pins: 3, 10, 12, 16, 18-19, 26, 28, 32-36, 41-44, 49, 51-56, 58, 63, 69
  • Terminated Lead: 13575575
  • Release Tool: J-38125-213
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Pin: 73
  • Terminated Lead: Pending
  • Release Tool: J-38125-12A
  • Diagnostic Test Probe: J-35616-35 (VT)
  • Terminal/Tray: 1326030-6/17
  • Core/Insulation Crimp: Pending
K20 Engine Control Module X2 (LUK without NU6)

Pin Size Color Circuit Function Option
1 0.5 WH/BN 6331 Air Injection Reaction Pump Pressure Sensor Signal NU6
2 0.5 WH/BN 6452 Air Injection Reaction Pump Sensor Supply Voltage NU6
3 0.5 BK/D-BU 808 Sensor Low Reference -
4-9 - - - Not Available -
10 0.5 VT/GY 3110 Heated Oxygen Sensor High Signal Bank 1 Sensor (1) -
11 - - - Not Available -
12 0.5 VT/D-BU 3120 Heated Oxygen Sensor High Signal Bank 1 Sensor (2) -
13-15 - - - Not Available -
16 0.5 BN/WH 582 Throttle Actuator Control Close -
17 0.5 BK/D-BU 6785 Air Injection Reaction Control Valve #1 Low Reference NU6
18 0.5 GY/RD 598 5-Volt Reference 1 -
19 0.5 D-BU/WH 2918 Fuel Rail Pressure Sensor Signal -
20-25 - - - Not Available -
26 0.5 WH/BK 3111 Heated Oxygen Sensor Low Signal Bank 1 Sensor (1) -
27 - - - Not Available -
28 0.5 WH/YE 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 BN/L-GN 485 Throttle Position Sensor Signal (1) -
34 0.5 BN/RD 2701 Throttle Position Sensor 5-Volt Reference 4 -
35 0.5 BN/D-BU 486 Throttle Position Sensor Signal (2) -
36 0.5 VT/GY 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/WH 432 Manifold Absolute Pressure Sensor Signal -
44 0.5 GY/RD 2704 Manifold Absolute Pressure Sensor 5-Volt Reference 3 -
45-48 - - - Not Available -
49 0.5 WH/D-BU 6289 Induction Air Temperature Sensor Signal -
50 - - - Not Available -
51 0.5 L-GN/D-BU 428 EVAP Canister Purge Solenoid Control -
52 0.5 L-GN/WH 492 Mass Air Flow Sensor Signal -
53 0.5 BN 25 Charge Indicator Control -
54 0.5 BK/BN 2752 Throttle Position Sensor Low Reference -
55 0.5 GY 23 Generator Field Duty Cycle Signal -
56 0.5 BK/YE 1716 Knock Sensor Low Reference (1) -
57 - - - Not Available -
58 0.5 WH/GY 1786 Transmission Park/Neutral Signal (1) -
59-62 - - - Not Available -
63 0.5 BK/L-GN 469 Manifold Absolute Pressure Sensor Low Reference -
64-68 - - - Not Available -
69 0.5 BK/VT 2760 Intake Air Temperature Sensor Low Reference -
70-72 - - - Not Available -
73 1.5 BK/WH 451 Signal Ground -
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.