LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2000 >> Astro Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Body Control Modules) >> Programming >> Powertrain Control Module/Programming On Board >> Remote Programming Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Remote Programming Procedure

WARNING: This page is about a different car, the 2001 GMC Safari and 2001 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn off ignition. Install Tech 2(R) to DLC.
  2. Turn ignition switch to RUN position, with engine off. Turn off all vehicle accessories.
  3. With Tech 2(R), select Service Programming. Identify vehicle information as requested by Tech 2(R).
  4. Select type of module you are programming. Select type of programming to be performed.
  5. Verify displayed VIN with vehicle VIN. If displayed VIN does not match actual VIN, write down actual VIN and correct VIN at Techline(R) terminal.
  6. When complete, exit Service Programming.
  7. Turn off Tech 2(R) and disconnect Tech 2(R) from vehicle. Turn off ignition
  8. Connect Tech 2(R) to Techline(R) terminal. Select Service Programming.
  9. Select Tech 2(R) as tool you are using. Select type of programming to be performed.
  10. Verify displayed VIN with vehicle VIN. Correct VIN as necessary. Select type of module you are programming.
  11. Identify what type of programming that you are performing:
    • Normal, this type of programming is for updating an existing calibration or programming a new controller.
    • Vehicle Configuration Index (VCI), this selection is used if vehicle VIN is unavailable or not recognized by Techline(R) terminal. Observe, you will need to contact Techline(R) Customer Support center to use this option.
    • Reconfigure, this is to reconfigure a vehicle, such as tire size and axle ratio changes.
  12. Select appropriate calibration file.
  13. Ensure all connections are secure. Select Reprog to initiate download of new calibration to Tech 2(R).
  14. After download is complete, turn off Tech 2(R). Disconnect Tech 2(R) from Techline(R) terminal.
  15. Install Tech 2(R) to data link connector (DLC). Turn ON Tech 2(R).
  16. Turn ignition switch to RUN position, with engine off. Select Service Programming.
    NOTE: DO NOT turn off ignition if programming procedure is interrupted or unsuccessful. Ensure that all PCM and DLC connections are secure and Techline(R) operating software is up to date. Attempt to reprogram control module. If PCM cannot be programmed, replace PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION.
  17. Select Program.
  18. After download is complete, exit Service Programming.
  19. Turn off ignition for 30 seconds.
  20. Turn off Tech 2(R).
  21. If a control module is replaced following service procedures must be performed:
scientia non olet · About LEMON Manuals