Scania fault code 28676

Code 28676 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 repeated oil pressure surges. The retarder oil pressure is measured continually during engagement. If the oil pressure is too high, e… Read explanation → RET Retarder The synchromesh actuating arm cannot be engaged. Freewheeling retarder cannot be engaged due to repeated oil pressure surges. The retarder oil pressure is measured continually during engagement. If the oil pressure is too high, e… Read explanation →