LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2014 >> Spark LS, Standard Trans >> Repair and Diagnosis (Single Page) >> Electrical >> Wiring Diagrams >> Wiring Systems And Power Management - Component Connector End Views - F105R To K71 (X1 Except M4M)) >> Component Connector End Views >> K20 Engine Control Module X3 (LFM/LL0+M4M)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

K20 Engine Control Module X3 (LFM/LL0+M4M)

GM1968294
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 34566-1403
  • Service Connector: 13574948
  • Description: 73-Way F 0.64, 2.8 Series, Sealed (BK with GY Terminal Position Assurance)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Core Crimp Insulation Crimp
I Pending Pending Pending Pending Pending Pending Pending
K20 Engine Control Module X3 (LFM/LL0+M4M)

Pin Size Color Circuit Function Terminal Type ID Option
1-9 - - - Not Occupied - -
10 0.75 GN/BU 428 EVAP Canister Purge Solenoid Control I M4M(LFM/LL0)
11-16 - - - Not Occupied - -
17 0.5 GY 23 Generator Field Duty Cycle Signal I M4M(LFM/LL0)
18-21 - - - Not Occupied - -
22 0.5 BK/BN 5360 Brake Apply Sensor Low Reference I M4M(LFM/LL0)
23-26 - - - Not Occupied - -
27 0.5 BK/BU 510 Fuel Sender Low Reference I M4M(LFM/LL0)
28 0.5 GY/RD 2704 Manifold Absolute Pressure Sensor 5 Volt Reference I -LL0
29 0.5 BK/GN 469 Manifold Absolute Pressure Sensor Low Reference I -LL0
30 0.5 BK/BU 2761 Coolant Temperature Sensor Low Reference I M4M
31 - - - Not Occupied - -
32 0.75 BN/GY 5037 Heated Oxygen Sensor Heater High Control Bank 2 Sensor (2) I M4M
33-37 - - - Not Occupied - -
38 0.5 WH 5359 Brake Apply Sensor Supply Voltage I M4M(LFM/LL0)
39-42 - - - Not Occupied - -
43 0.5 YE/RD 2709 Fuel Tank Pressure Sensor 5 Volt Reference I M4M(LFM/LL0)
44 - - - Not Occupied - -
45 0.5 GN/WH 432 Manifold Absolute Pressure Sensor Signal I -LL0
46 0.5 GN/VT 2032 Coolant Temperature Sensor Signal I M4M
47-57 - - - Not Occupied - -
58 0.5 BU/YE 5361 Brake Apply Sensor Signal I M4M(LFM/LL0)
59-62 - - - Not Occupied - -
63 0.5 BU/WH 890 Fuel Tank Pressure Sensor Signal I M4M(LFM/LL0)
64 0.5 BU/VT 1589 Primary Fuel Level Sensor Signal I M4M(LFM/LL0)
65-66 - - - Not Occupied - -
67 0.5 BU 1670 Heated Oxygen Sensor High Signal Bank 2 Sensor (2) I M4M
68 0.5 BN/GY 1671 Heated Oxygen Sensor Low Signal Bank 2 Sensor (2) I M4M
69-73 - - - Not Occupied - -