Conditions for Setting the DTC
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
C0161 04
The brake pedal switch is sensed as not applied while the pressure sensor and travel sensor indicate the brake pedal is applied.
C0161 00, C0161 0E or C127D
The brake pedal is sensed as applied while the vehicle speed is greater than 15 km/h (9 MPH).