Scania AMS DTC 8451 Monitors reductant delivery offset on the upstream dosing unit

AMS AMS control unit · Scania

Code 8451 (decimal). Some diagnostic tools show it in hexadecimal as 002103.

In short

The dosing quantity estimated from the reductant pressure and pump and return flow does not match the requested dosing.

Applies to: AMS2

What does Scania AMS fault code 8451 mean?

What causes Scania DTC 8451?

How to fix Scania AMS fault code 8451?

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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.

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