Scania fault code 4609
Code 4609 is used by 6 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Rotational speed sensor or starter motor
The speed signal from the engine speed sensor is lower than it should be for the current engine speed.
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EMD
Engine speed, engine overspeed protection
Engine speed has been above 2,900 rpm.
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EME
Engine speed, engine overspeed protection
Engine speed has been above 2,900 rpm.
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EMO
Engine speed, engine overspeed protection
Engine speed has been above 2,900 rpm.
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DDU
Invalid Image
Invalid image fault is set when its identified in the metadata sent from the camera.
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MGU
Position sensor for electric machine, prohibited signal
Prohibited signal from the position sensor for the electric machine.
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