Scania fault code 28930

Code 28930 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

TMS Transmission Management System The synchromesh actuating arm does not reach the disengaged position Freewheeling retarder cannot disengage. The operation unit has left the engaged position, but seizes somewhere along the way and does not reach the disengaged position. So as not t… Read explanation → RET Retarder The synchromesh actuating arm does not reach the disengaged position Freewheeling retarder cannot disengage. The operation unit has left the engaged position, but seizes somewhere along the way and does not reach the disengaged position. So as not t… Read explanation →