Home >> BMW >> 2009 >> M3 2D Convertible, Automatic DCT >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P1602 - DTC U1153 (S65) >> MSS60 Engine Operating System DTCS >> DTC U1101, BMW Hex Code 0xCD94, BMW Code 52628: Lost Communication With Ambient Temperature/Relative Time (SIG) >> Calculated value Y/N