Computer Problem?

I Had Scanner Connected To My 94 2wd Suburban For Other Codes And I Noticed When I Was Reading The Info While Its Running And I Seen That It Says 4 Wheel Drive Is On???? I Have A 2wd But For The Longest It Has Seemed Like My Truck Drags To Go With Slow Shifts. Where In The World Would This Be Sensed From The Computer Or The Trans. I Was Gonna Put Ina New Trans Next Spring But If Its Computer Problems Then I Might Be Wasting My Money. How Can I Find Out Where Is This Coming From?

is there anyone that can help?