Scania EEC DTC 4641 Fuel injection for exhaust gas aftertreatment

EEC Exhaust Emission Control · Scania

Code 4641 (decimal). Some diagnostic tools show it in hexadecimal as 1221.

In short

The air pressure in the valve block for exhaust gas aftertreatment is not increasing even though the air control valve is open.

Applies to: EEC3

What does Scania EEC fault code 4641 mean?

What causes Scania DTC 4641?

How does the system react?

How to fix Scania EEC fault code 4641?

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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 4641 in other Scania systems