Scania COO DTC 657 Coordinator

COO Coordinator · Scania · 5 variants

Code 657 (decimal). Some diagnostic tools show it in hexadecimal as 0291.

In short

Internal fault in the control unit.

Variant 1: Coordinator.

Applies to: COO10 (COO)COO11 (COO)

What does Scania COO fault code 657 mean?

How does the system react?

How to fix Scania COO fault code 657?

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Variant 2

Applies to: COO8 (COO)

Variant 3

Applies to: COO9 (COO)

Variant 4

Applies to: COO7

Variant 5

Applies to: COO8

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

Code 657 in other Scania systems

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