Home >> Mazda >> 2016 >> 6 Touring, Standard Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Parking Brake System >> On-Board Diagnostics [Electric Parking Brake] >> DTC U0001-87; U0001-88; U0100-00; U0101-00; U0121-00; U0151-00; U0155-00: Unit Communication Error >> Diagnostic Procedure