Scania fault code 4385
Code 4385 is used by 6 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Cylinder balancing, cylinder 1
The highest level to which the control unit can adjust the fuel volume for the cylinder has been reached.
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BMU Battery Management Unit
Battery module 1, cell monitoring circuit board, minor internal fault
The cell monitoring circuit board has detected an internal error and is having trouble monitoring the status of the battery module.
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DDU
Yellow warning indication, activation time limit exceeded
Information is missing, update is in progress.
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AMS
NOx sensor downstream of particulate filter, short circuit to earth
The control unit indicates that the voltage supply to NOx sensor T131 downstream of the particulate filter is short circuited to earth.
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EEC Exhaust Emission Control
NOx sensor upstream of the SCR catalytic converter
Fault in the voltage supply to NOx sensor T131 upstream of the SCR catalytic converter.
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GSC
Gas leakage in the high pressure section
The fuel pressure has varied to an implausible extent.
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