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HOMESERVICE MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (COMPONENT CONNECTOR END VIEWS (K20 - K60))COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X3 (L96)
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol

K20 Engine Control Module X3 (L96)

2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION K20 Engine Control Module X3 (L96)
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GM3240140
Connector Part Information
  • Harness Type: Engine
  • OEM Connector: 33157048
  • Service Connector: 19260918
  • 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/BU 428 EVAP Canister Purge Solenoid Control I -
11 - 15 - - - Not Occupied - -
16 0.5 WH/BN 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 BK/BN 5360 Brake Apply Sensor Low Reference I -
23 - 26 - - - Not Occupied - -
27 0.5 BK/GN 6281 Fuel Level Sensor Low Reference I -
28 0.5 GY/RD 2704 Manifold Absolute Pressure Sensor 5V Reference I -
29 0.5 BK/GN 469 Manifold Absolute Pressure Sensor Low Reference I -
30 0.5 BK/BN 2761 Coolant Temperature Sensor Low Reference I -
31 - - - Not Occupied - -
32 0.5 GY/WH 3122 Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 2 I -
33 - 37 - - - Not Occupied - -
38 0.5 WH 5359 Brake Apply Sensor Control I -
39 - 42 - - - Not Occupied - -
43 0.5 YE/RD 2709 Fuel Tank Pressure Sensor 5V Reference I -
44 0.5 BU/WH 1937 Secondary Fuel Level Sensor Signal I -
45 0.5 GN/WH 432 Manifold Absolute Pressure Sensor Signal I -
46 0.5 BU 410 Engine Coolant Temperature Sensor Signal I -
47 - - - Not Occupied - -
48 0.5 VT/WH 821 Vehicle Speed Sensor Signal I -
49 0.5 BK/GN 822 Vehicle Speed Sensor Low Reference I -
50 - 57 - - - Not Occupied - -
58 0.5 BU/YE 5361 Brake Apply Sensor Signal I -
59 - 62 - - - Not Occupied - -
63 0.5 BU/WH 890 Fuel Tank Pressure Sensor Signal I -
64 0.5 BU/VT 1589 Primary Fuel Level Sensor Signal I -
65 0.5 VT/GN 3220 Heated Oxygen Sensor High Signal Bank 2 Sensor 2 I -
66 0.5 YE/BU 3221 Heated Oxygen Sensor Low Signal Bank 2 Sensor 2 I -
67 0.5 VT/BU 3120 Heated Oxygen Sensor High Signal Bank 1 Sensor 2 I -
68 0.5 WH/YE 3121 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.