Home >> BMW >> 2013 >> 740Li >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P0478 (BMW DTC 138101) Through DTC P0440 (BMW DTC 191D01) >> DTC P13DF; BMW DTC 2A60: Ignition And Injectors Relay Power Supply Circuit Injection Circuit Low (Bank 1) >> Service instruction