Scania BCI DTC 660 Ground missing

BCI BCI control unit · Scania · 4 variants

Code 660 (decimal). Some diagnostic tools show it in hexadecimal as 0294.

In short

The BCI control unit has no connection to system ground (pin A3) or reference ground (pin A1).

Variant 1

Applies to: BCI2 (BWE)

What does Scania BCI fault code 660 mean?

What causes Scania DTC 660?

How does the system react?

How to fix Scania BCI fault code 660?

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Variant 2: Earth missing

Applies to: BCI3 (BWE)

Variant 3

Applies to: BCI1 (BWE)

Variant 4

Applies to: BCI2 (BWE)

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

Code 660 in other Scania systems

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