GM Service Manual Online
For 1990-2009 cars only
  1. If you have not already disassembled the valve link, pull the valve link from the retainer on the programmer output crank.
  2. Start the vehicle.
  3. Set the temperature to 32°C (90°F).

  4. Allow a minimum of 45 seconds in order for the programmer motor to move the output crank to the full hot position.
  5. Move the temperature valve to the full hot position.
  6. Snap the valve link into the retainer on the output crank.