Scania fault code 4143
Code 4143 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
SCR – Reductant pressure
The pressure has not increased enough after the reductant pump has been started at full capacity.
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DDU
Right blind spot warning lamp R1, short circuit to voltage supply
The DDU control unit has interpreted a short circuit to voltage supply on right LED lamp R1.
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LAS Locking and Alarm System
Remote control 8
The control unit has detected that the signal from the remote control is weak.
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