Scania fault code 1603
Code 1603 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Gas pressure sensor
The gas pressure sensor reference voltage is too high.
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ELC Electronically controlled air suspension
Solenoid valve for lowering the second tag axle
The voltage on the output to the solenoid valve has been too high.
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