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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 202 (Wiring Systems And Power Management - Component Connector End Views - K20 ECM X2 Through X85) >> Component Connector End Views >> K20 Engine Control Module X2
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K20 Engine Control Module X2

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.
GM1673472
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-0103
  • Service Connector: 88988931
  • Description: 73-Way F 0.64/2.8 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, 73
  • Terminated Lead: Pending
  • Release Tool: Pending
  • Diagnostic Test Probe: Pending
  • Terminal/Tray: Pending
  • Core/Insulation Crimp: Pending
K20 Engine Control Module X2

Pin Size Color Circuit Function Option
1-2 - - - Not Used -
3 0.5 BU/WH 2918 Fuel Rail Pressure Sensor Signal -
4-9 - - - Not Used -
10 0.5 VT/GY 3110 Heated Oxygen Sensor High Signal Bank 1 Sensor (1) -
11 - - - Not Used -
12 0.5 VT/BU 3120 Heated Oxygen Sensor High Signal Bank 1 Sensor (2) -
13-14 - - - Not Used -
15 0.5 BU 7564 Humidity Sensor Signal -
16 0.5 GY/BK 561 Throttle Relaxer Motor Low Reference -
17 - - - Not Used -
18 0.5 BN/RD 2917 Fuel Rail Pressure Sensor (5) Volt Reference -
19 0.5 BK/GN 2919 Fuel Rail Pressure Sensor Low Reference -
20-25 - - - Not Used -
26 0.5 WH/BK 3111 Heated Oxygen Sensor Low Signal Bank 1 Sensor (1) -
27 - - - Not Used -
28 0.5 WH/YE 3121 Heated Oxygen Sensor Low Signal Bank 1 Sensor (2) -
29-31 - - - Not Used -
32 0.5 WH 560 Throttle Relaxer Motor Supply Voltage -
33 - - - Not Used -
34 0.5 BN/RD 2701 Throttle Position Sensor 5 Volt Reference -
35 - - - Not Used -
36 0.5 VT/GY 496 Knock Sensor Signal (1) -
37-40 - - - Not Used -
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 BK/GN 432 Manifold Absolute Pressure Sensor Signal -
44 0.5 GY/RD 2704 Manifold Absolute Pressure Sensor 5 Volt Reference -
45-48 - - - Not Used -
49 0.5 WH/BU 6289 Induction Air Temperature Sensor Signal -
50 - - - Not Used -
51 0.5 BK/GY 428 EVAP Canister Purge Solenoid Control -
52 0.5 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 WH/GY 1876 Knock Sensor Signal (2) -
57 - - - Not Used -
58 0.5 WH/GY 1786 Transmission Park/Neutral Signal (1) -
59-62 - - - Not Used -
63 0.5 GN/WH 469 Manifold Absolute Pressure Sensor Low Reference -
64-68 - - - Not Used -
69 0.5 BK/VT 2760 Intake Air Temperature Sensor Low Reference -
71 0.5 BN/GN 485 Throttle Position Sensor Signal (1) -
71-72 - - - Not Used -
73 1.5 BK 450 Ground -