DTC Descriptors
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic procedure supports the following DTCs:
DTC C0161 ABS/TCS Brake Switch Circuit Malfunction
DTC C0277 Brake Pedal Position Sensor Circuit
DTC C0278 Brake Pedal Position Sensor Not Calibrated
DTC C0870 Device Voltage Reference Output {single or 1} Circuit