Scania AMS DTC 4871 V231, Reductant doser downstream of the turbocharger shorted to high supply voltage.

AMS AMS control unit · Scania

Code 4871 (decimal). Some diagnostic tools show it in hexadecimal as 1307.

In short

The control unit for the exhaust gas aftertreatment system indicates that the pins for the reductant doser after turbocharger are shorted to high supply voltage.

Applies to: AMS1

What does Scania AMS fault code 4871 mean?

What causes Scania DTC 4871?

How to fix Scania AMS fault code 4871?

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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 4871 in other Scania systems