Scania fault code 41221

Code 41221 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

CCU EMU control unit, CAN message missing CAN message missing from the EMU control unit. Read explanation → ACC Automatic Climate Control Climate control unit E17 communication error The climate system has not received a signal from EMU within an expected time period while the engine is running. Read explanation →