Generic
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    Brake Switch "A" Circuit Low

GM
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    Cruise/Brake Switch Circuit Low Input Conditions
Cause:
    Engine running with vehicle speed cycled 2 times from 0-37 mph, and the PCM did not detect any change in the Brake switch status