Condition No. 1:

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1998 GMC Savana Special, 1998 GMC Savana Camper Special, 1998 GMC Savana, 1998 Chevrolet RV Cutaway, and 1998 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

When 1-2 shift solenoid is stuck off, 1st gear is commanded and ratio equals 2nd gear for more than 2 seconds, and 4th gear is commanded with TCC locked and ratio equals 3rd for more than 3 seconds.