Scania fault code 29186

Code 29186 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

TMS Transmission Management System The synchromesh actuating arm cannot be engaged. Freewheeling retarder cannot be engaged due to increased oil pressure. When a new engagement attempt is made, engagement is successful. Continuous checks are carried out during mec… Read explanation → RET Retarder The synchromesh actuating arm cannot be engaged. Freewheeling retarder cannot be engaged due to increased oil pressure. When a new engagement attempt is made, engagement is successful. Continuous checks are carried out during mec… Read explanation →