Scania BCI DTC 686 EXT switch

BCI BCI control unit · Scania · 3 variants

Code 686 (decimal). Some diagnostic tools show it in hexadecimal as 02AE.

In short

The control unit interprets this as the EXT switch having been depressed for more than 2 minutes.

Variant 1

Applies to: BCI2 (BWE)

What does Scania BCI fault code 686 mean?

What causes Scania DTC 686?

What are the symptoms?

How to fix Scania BCI fault code 686?

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Variant 2

Applies to: BCI3 (BWE)

Variant 3

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 686 in other Scania systems

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