Scania EEC DTC 4645 Fuel injection for exhaust gas aftertreatment

EEC Exhaust Emission Control · Scania

Code 4645 (decimal). Some diagnostic tools show it in hexadecimal as 1225.

In short

The air pressure is too high when the air control valve in the valve block for exhaust gas aftertreatment is open.

Applies to: EEC3

What does Scania EEC fault code 4645 mean?

What causes Scania DTC 4645?

How does the system react?

How to fix Scania EEC fault code 4645?

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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 4645 in other Scania systems