Scania BCI DTC 524 Communication fault, external CAN bus

BCI BCI control unit · Scania · 14 variants

Code 524 (decimal). Some diagnostic tools show it in hexadecimal as 020C.

In short

Open circuit or short circuit to the external CAN bus.

Variant 1

Applies to: BCI2 (BWE)

What does Scania BCI fault code 524 mean?

What causes Scania DTC 524?

How does the system react?

How to fix Scania BCI fault code 524?

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Variant 2: Communication fault, external CAN bus.

Applies to: BCI3 (BWE)

Variant 3: Excess current, C628-17

Applies to: BCI B1 (BWEXBUS)

Variant 4: Excess current, ExpA-15

Applies to: BCI E1 (BWEXA)

Variant 5: Excess current, ExpB-15

Applies to: BCI E1 (BWEXB)

Variant 6: Excess current, ExpC-15

Applies to: BCI E1 (BWEXC)

Variant 7: Excess current, ExpD-15

Applies to: BCI E1 (BWEXD)

Variant 8: Excess current, ExpE-15

Applies to: BCI E1 (BWEXE)

Variant 9: Excess current, ExpF-15

Applies to: BCI E1 (BWEXF)

Variant 10: Excess current, ExpG-15

Applies to: BCI E1 (BWEXG)

Variant 11: Excess current, ExpH-15

Applies to: BCI E1 (BWEXH)

Variant 12: Excess current, ExpI-15

Applies to: BCI E1 (BWEXI)

Variant 13

Applies to: BCI1 (BWE)

Variant 14

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.

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