Scania BCI DTC 709 Short circuit to earth, output for accessory mode (pin B7)

BCI BCI control unit · Scania · 2 variants

Code 709 (decimal). Some diagnostic tools show it in hexadecimal as 02C5.

In short

Excessively high voltage on inactive output for accessory mode.

Variant 1

Applies to: BCI2 (BWE)

What does Scania BCI fault code 709 mean?

What causes Scania DTC 709?

How does the system react?

What are the symptoms?

How to fix Scania BCI fault code 709?

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Variant 2

Applies to: BCI3 (BWE)

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

Code 709 in other Scania systems

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