Scania fault code 4129
Code 4129 is used by 6 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
SCR - Injection valve for reductant
Input voltage applied on the OPS3 is unstable
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EMU
Refrigerant compressor E157, supply voltage, short circuit to earth
The control unit indicates too low a voltage.
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DDU
Supplementary voltage supply for camera 3, break in circuit
Information is missing, update is in progress.
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EEC Exhaust Emission Control
Exhaust gas temperature sensor upstream of the particulate filter
The exhaust gas temperature sensor upstream of the particulate filter indicates incorrect values.
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LAS Locking and Alarm System
Remote control 14
The control unit detects that the remote control is transmitting a continuous signal.
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GSC
High pressure solenoid valve
Incorrect level on current signal through the solenoid valve coil. Incorrect level on current signal through the solenoid valve coil. | Incorrect level on current signal through th…
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