Scania BCI DTC 566 Excess current, C259-13

BCI BCI control unit · Scania · 5 variants

Code 566 (decimal). Some diagnostic tools show it in hexadecimal as 0236.

In short

Excess current or short circuit to ground or supply voltage.

Variant 1

Applies to: BCI2 (BWE)

What does Scania BCI fault code 566 mean?

Excess current or short circuit to ground or supply voltage.

What causes Scania DTC 566?

The cause can be one of the following: - Fault in connections or cable harness. - Short circuit to ground or supply voltage. - Incorrect electrical load.

How does the system react?

A yellow warning indication is displayed. Bodywork functions that rely on logic diagrams using this output do not function correctly as long as the fault code is active.

How to fix Scania BCI fault code 566?

  1. Use BICT to find out which bodywork functions are connected to the output.
  2. Check the connections, cable harness and components connected to the output.

Variant 2

Applies to: BCI3 (BWE)

Detection

Excess current or short circuit to earth (pin C259-19) or supply voltage (pin C259-13). Excess current or short circuit to earth (pin P504-A2) or supply voltage (pin P504-A4). Excess current or short circuit to earth (pin B4) or supply voltage (pin B1). | Excess current or short circuit to earth (pin C259-19) or supply voltage (pin C259-13). | Excess current or short circuit to earth (pin P504-A2) or supply voltage (pin P504-A4). | Excess current or short circuit to earth (pin B4) or supply voltage (pin B1).

Possible cause

The cause may be one of the following: - Fault in connections or cable harness. - Short circuit to earth or supply voltage. - Incorrect electrical load.

System reaction

A yellow warning indication is displayed. Bodywork functions that rely on logic diagrams using this output do not function correctly as long as the fault code is active.

How to fix

  1. nullnullnull | Check wiring and connectors.
  2. (C259:13) | Check wiring and connectors.
  3. (P503:A2) | Check wiring and connectors.

Variant 3: Excess current, ExpI-B7

Applies to: BCI C1 (BWEXI)

Detection

Excess current or short circuit to supply voltage.

Possible cause

The cause can be one of the following: - Fault in connections or cable harness. - Short circuit to supply voltage. - Incorrect electrical load.

System reaction

A yellow warning message is shown in the instrument cluster. Bodywork functions that rely on logic diagrams using this output do not function correctly as long as the fault code is active.

How to fix

  1. Use BICT to find out which bodywork functions are connected to the output.
  2. Check the connections, cable harnesses and components connected to the input.

Variant 4: Excess current, C259-13 (truck) or C628-11 (bus)

Applies to: BCI1 (BWE)

Detection

Excess current or short circuit to ground or supply voltage.

Possible cause

The cause can be one of the following: - Fault in connections or cable harness. - Short circuit to ground or supply voltage. - Incorrect electrical load.

System reaction

A yellow warning indication is displayed. Bodywork functions that rely on logic diagrams using this output do not function correctly as long as the fault code is active.

How to fix

  1. Use BICT to find out which bodywork functions are connected to the output.
  2. Check the connections, cable harnesses and components connected to the input.

Variant 5

Applies to: BCI2 (BWE)

Detection

Excess current or short circuit to ground or supply voltage.

Possible cause

The cause can be one of the following: - Fault in connections or cable harness. - Short circuit to ground or supply voltage. - Incorrect electrical load.

System reaction

A yellow warning indication is displayed. Bodywork functions that rely on logic diagrams using this output do not function correctly as long as the fault code is active.

How to fix

  1. Use BICT to find out which bodywork functions are connected to the output.
  2. Check the connections, cable harnesses and components connected to the input.

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

Code 566 in other Scania systems

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