Home >> Mini >> 2007 >> Cooper Base, 2D Convertible, Standard >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnostic Trouble Codes - GSAW56 Control Unit >> Diagnostic Trouble Codes (GSAW56 Transmission Control) >> DTC U0121, BMW Hex Code 0xCF15, BMW Code 53013: Lost Communication With Anti-Lock Brake System (ABS) Control Module >> System test