Scania fault code 4459
Code 4459 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Cylinder group B
The engine control unit indicates a short circuit to earth. Injector bank B Engine type Injectors 5-cylinder 4 6-cylinder 3 and 4 8-cylinder 2 and 8
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EMD
Cylinder group B
Permanent electrical fault on one or more injector solenoid valves or on the injector electrical cables. The fault only occurs when the engine is running. Cylinder group B Engine t…
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EME
Cylinder group B
Permanent electrical fault on one or more injector solenoid valves or on the injector electrical cables. The fault only occurs when the engine is running. Engine type Cylinder grou…
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EMO
Group B - Short Circuit Ground
Permanent short circuit to ground detected on the cabling to the injector(s). The fault is detected only when engine is running.
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