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HOMESERVICE MANUALSCHEVROLET2014EXPRESS 2500 BASE, VAN CARGO, 6.6L ENG VIN LREPAIR AND DIAGNOSISENGINE PERFORMANCETUNE-UPENGINE CONTROLS AND FUEL - 6.6L (LGH) - REPAIR INSTRUCTIONSREPAIR INSTRUCTIONSTURBOCHARGER LEARNLEARN PROCEDURE WITH THE TECH 2
2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN L

Learn Procedure With the Tech 2

2014 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Learn Procedure With the Tech 2
NOTE:

Once the enable conditions have been met the throttle must remain at idle. Do not change the accelerator pedal position (APP) during this procedure.

  1. The following conditions must be met for the ECM to perform the turbocharger learn procedure:
    • The air conditioning (A/C) system is OFF.
    • The vehicle is in Park or Neutral.
    • Start and idle the engine.
    • The ECT is greater than 40°C (104°F).
  2. After the enable conditions have been met and the engine idle is stabilized, enter the TC Learn Output function from the Module Setup Menu. Command the TC Learn ON for at least 5 s, then command it OFF. The system should have learned the new turbocharger position. The TC Vane Position Learn Status parameter should have toggled from In Progress to TC Learned.
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.