Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

A current DTC clears when the malfunction is no longer present.
A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.

Fig 1: Control Module/ID Number Reference Table
Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC U1001-U1254 - Diagnostic Table

Courtesy of GENERAL MOTORS CORP.