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HOMESERVICE MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 20 (COMPONENT CONNECTOR END VIEWS (K17-K71))COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X3 (L96/LC8)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G

K20 Engine Control Module X3 (L96/LC8)

2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION K20 Engine Control Module X3 (L96/LC8)
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
GM1590596Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 15497996
  • Service Connector: 88988372
  • 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 Name Core Crimp Insulation Crimp
I 13575812 J-35616-64B (LT BU) J-38125-213 Not Available Not Available Not Available Not Available
Pin Size Color Circuit Function Terminal Type ID Option
1 - 9 - - - Not Occupied - -
10 0.5 GN/WH 428 EVAP Canister Purge Solenoid Control I -
11 - 15 - - - Not Occupied - -
16 0.8 OG/WH 3223 Heated Oxygen Sensor Heater Low Control Bank 2 Sensor 2 I -
17 0.5 GY 23 Generator Field Duty Cycle Signal I -
18 - 21 - - - Not Occupied - -
22 0.5 BN 5360 Brake Apply Sensor Low Reference I -
23 - 26 - - - Not Occupied - -
27 0.5 TN 2759 Fuel Tank Pressure Sensor Low Reference I -
28 0.8 GY 2704 Manifold Absolute Pressure Sensor 5V Reference I -
29 0.8 OG/BK 469 Manifold Absolute Pressure Sensor Low Reference I -
30 0.8 TN 2761 Coolant Temperature Sensor Low Reference I -
31 - - - Not Occupied - -
32 0.8 GY/WH 3122 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 2 I -
33 - - - Not Occupied - -
34 0.8 WH/BK 1579 Fuel Temperature/Composition Signal I -
35 - 37 - - - Not Occupied - -
38 0.5 WH 5359 Brake Apply Sensor Control I -
39 - 42 - - - Not Occupied - -
43 0.5 GY 2709 Fuel Tank Pressure Sensor 5V Reference I -
44 - - - Not Occupied - -
45 0.8 GN 432 Manifold Absolute Pressure Sensor Signal I -
46 0.8 YE 410 Engine Coolant Temperature Sensor Signal I -
47 - 54 - - - Not Occupied - -
55 0.5 OG/BK 6399 Replicated TOS Signal I -
56 - 57 - - - Not Occupied - -
58 0.5 YE 5361 Brake Apply Sensor Signal I -
59 - 62 - - - Not Occupied - -
63 0.5 GN 890 Fuel Tank Pressure Sensor Signal I -
64 0.5 VT 1589 Primary Fuel Level Sensor Signal I -
65 0.8 VT 1670 Heated Oxygen Sensor High Signal Bank 2 Sensor 2 I -
66 0.8 TN 1671 Heated Oxygen Sensor Low Signal Bank 2 Sensor 2 I -
67 0.8 VT/WH 1668 Heated Oxygen Sensor High Signal Bank 1 Sensor 2 I -
68 0.8 TN/WH 1669 Heated Oxygen Sensor Low Signal Bank 1 Sensor 2 I -
69 - 73 - - - Not Occupied - -
RENDER: 1.0x

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When to See a Mechanic

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

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