Scania AMS DTC 8390 Electrically heated reductant hose H25, electric fault

AMS AMS control unit · Scania

Code 8390 (decimal). Some diagnostic tools show it in hexadecimal as 20C6.

In short

The control unit for the exhaust gas aftertreatment management system indicates an electrical fault on the pins for the electrically heated reductant hose.

Applies to: AMS1

What does Scania AMS fault code 8390 mean?

What causes Scania DTC 8390?

How does the system react?

How to fix Scania AMS fault code 8390?

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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 8390 in other Scania systems