Scania fault code 2604
Code 2604 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Planetary gear coupling sleeve
The position sensor indicates that the planetary gear coupling sleeve has unexpectedly moved from low range to high range.
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BMU Battery Management Unit
Fault in CAN communication with BMU control unit M
CAN message error between BMU control unit A and BMU control unit M.
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PCS
Coupling sleeve L2, unexpected position change
The coupling sleeve performed an unexpected change from the engaged position to the disengaged position.
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