Scania fault code 4105
Code 4105 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Communication between the NOx sensor downstream of the catalytic converter and the SCR control unit.
Internal Temp. above 125 degrees
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EMU
Temperature sensor T251, power electronics upstream of radiator, short circuit to voltage supply
The control unit states an implausibly high voltage, which indicates an open circuit.
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DDU
External side detection warning sound, break in the circuit
Information is missing, update is in progress.
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PCS
Friction torque for Engine is out of range
PCS has detected that the friction torque of ICE, is out of range.
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