Scania EMS DTC 4656 Unit injector for cylinder 3

EMS Engine Management System · Scania

Code 4656 (decimal). Some diagnostic tools show it in hexadecimal as 1230.

In short

The control unit has built up the current in the unit injector solenoid valve too quickly.

Applies to: EMS S6

What does Scania EMS fault code 4656 mean?

What causes Scania DTC 4656?

How does the system react?

How to fix Scania EMS fault code 4656?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 4656 in other Scania systems