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?

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

What causes Scania DTC 689?

The BIC program is missing switches which are present on the vehicle.

How to fix Scania BCI fault code 689?

  1. Carry out one of the following actions:
  2. Remove the switches which are present in the vehicle but which are not used in the BIC program.
  3. Run the Configuration of switch modules wizard.
  4. Add the switches which are present in the vehicle to the BIC program.
  5. Run the wizard Edit BIC programs.

Variant 2

Applies to: BCI3 (BWE)

Detection

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

Possible cause

The BIC program is missing switches which are present in the vehicle.

How to fix

  1. Carry out one of the following actions:
  2. Remove the switches which are present in the vehicle but which are not used in the BIC program.
  3. Run the Switch module configuration wizard.
  4. Add the switches which are present in the vehicle to the BIC program.
  5. Run the Edit BIC programs wizard.

Variant 3

Applies to: BCI2 (BWE)

Detection

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

Possible cause

The BIC program is missing switches which are present on the vehicle.

How to fix

  1. Carry out one of the following actions:
  2. Remove the switches which are present in the vehicle but which are not used in the BIC program.
  3. Run the Switch module configuration wizard.
  4. Add the switches which are present in the vehicle to the BIC program.
  5. Run the wizard Edit BIC programs.

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

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