Scania AMS DTC 4676 Electrically heated reductant hose H28, electric fault

AMS AMS control unit · Scania · 2 variants

Code 4676 (decimal). Some diagnostic tools show it in hexadecimal as 1244.

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.

Variant 1

Applies to: AMS1

What does Scania AMS fault code 4676 mean?

What causes Scania DTC 4676?

How does the system react?

How to fix Scania AMS fault code 4676?

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Variant 2: Error received over CAN on signal DefLine5HeatingStatus from EMS

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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