Conditions for Clearing the DTC

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

A last test failed (current DTC) clears when the diagnostic runs and does not fail.
A history DTC clears after 100 consecutive malfunction free warm-up cycles.
The IPC receives the clear code command from the scan tool.

Fig 1: Diagnostic Check - DTC B0560

Courtesy of GENERAL MOTORS CORP.