Scania AMS DTC 4881 Reductant doser downstream of the turbocharger V231, open circuit

AMS AMS control unit · Scania · 2 variants

Code 4881 (decimal). Some diagnostic tools show it in hexadecimal as 1311.

In short

The control system shows an open circuit on pins connected to the reductant doser.

Variant 1

Applies to: AMS1

What does Scania AMS fault code 4881 mean?

What causes Scania DTC 4881?

How does the system react?

What are the symptoms?

How to fix Scania AMS fault code 4881?

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Variant 2

Applies to: AMS2

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

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