Scania BCI DTC 574 Communication fault, Expansion unit A

BCI BCI control unit · Scania · 4 variants

Code 574 (decimal). Some diagnostic tools show it in hexadecimal as 023E.

In short

Communication with expansion unit is missing or has been disconnected.

Variant 1

Applies to: BCI1 (BWE)BCI2 (BWE)

What does Scania BCI fault code 574 mean?

What causes Scania DTC 574?

How does the system react?

How to fix Scania BCI fault code 574?

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Variant 2

Applies to: BCI2 (BWE)

Variant 3

Applies to: BCI3 (BWE)

Variant 4: Earth missing

Applies to: BCI C1 (BWEXI)

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 574 in other Scania systems