Conditions for Setting the DTC

WARNING: This page is about a different car, the 2006 Suzuki Reno and 2006 Suzuki Forenza. However, it is still accessible from the selected car via links, so may be relevant.

Engine is running.
If time from state change of one brake input to when the other brake input changes state (making switch states equal again) is greater than 0.5 seconds, fail counts increase by 3. When the fail counts reach 39, this DTC sets.