Scania BCI DTC 689 Programmable switch

BCI BCI control unit · Scania · 3 variants

Code 689 (decimal). Some diagnostic tools show it in hexadecimal as 02B1.

In short

One or more programmable switches are sending an incorrect signal in relation to the signal expected from the coordinator.

Variant 1

Applies to: BCI2 (BWE)

What does Scania BCI fault code 689 mean?

What causes Scania DTC 689?

How to fix Scania BCI fault code 689?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

  • Full explanations of every code and brand
  • Causes, symptoms and repair steps
  • New brands and codes included
Get Premium – 7,50 € / month I already have an account

Yearly plan: pay 10 months, get 12. Cancel at any time.

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 689 in other Scania systems

Compare code 689 in every system →