2000 Chevrolet Pickup C2500, 4D Pickup, 6.5 F, StandardFACTORY OEM SERVICE PROCEDURE

Powertrain Control Module Relearn

  1. Ensure battery is charged, ignition is on, battery/cigarette lighter and DLC connections are secure. Perform the programming procedure. Refer to up-to-date Techline terminal/equipment for instructions.
  2. Perform relearn procedures for anti-theft system. See PROGRAMMING in appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
  3. After vehicle has been programmed, operate vehicle until coolant temperature is greater than 170°F (77°C). This allows TDC offset to be programmed automatically.
  4. If PCM is only being reprogrammed, it maybe necessary to program PCM with glow plug information. See GLOW PLUG SYSTEM TYPE RELEARN .
  5. If PCM fails to reprogram, check PCM connections and check Techline terminal/equipment for latest software version. Attempt reprogramming PCM. If reprogramming fails again, replace PCM.
Factory Service Tools

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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.

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