Scania AMS DTC 8387 Electrically heated reductant hose (H27), short circuit to earth

AMS AMS control unit · Scania · 2 variants

Code 8387 (decimal). Some diagnostic tools show it in hexadecimal as 20C3.

In short

The control unit for the exhaust gas aftertreatment management system indicates that the pins for the electrically heated reductant hose are short-circuited to earth.

Variant 1

Applies to: AMS1

What does Scania AMS fault code 8387 mean?

What causes Scania DTC 8387?

How does the system react?

How to fix Scania AMS fault code 8387?

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Variant 2: Electrically heated reductant hose H27, short circuit to earth

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.

Code 8387 in other Scania systems