DTC C0561 59
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostics detects if the ABS motor is continuously ON for greater than 60 seconds during the same ignition cycle due to; Pedal pumping, poor service bleed, or a hydraulic leak.