Conditions for Setting DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The voltage on the wastegate solenoid control circuit is high, near the battery voltage, for test 1, and two consecutive faults have been detected, and the conditions were met for 2 seconds; or the voltage on the Wastegate solenoid control circuit is low, near 0 volts, for test 2, and two consecutive faults have been detected, and the conditions met for 2 seconds.