Scania COO DTC 809 Internal fault

COO Coordinator · Scania · 6 variants

Code 809 (decimal). Some diagnostic tools show it in hexadecimal as 0329.

In short

None of the outputs that can be checked are operational.

Variant 1

Applies to: COO10 (COO)

What does Scania COO fault code 809 mean?

What causes Scania DTC 809?

How does the system react?

What are the symptoms?

How to fix Scania COO fault code 809?

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Variant 2

Applies to: COO11 (COO)

Variant 3

Applies to: COO8 (COO)

Variant 4

Applies to: COO9 (COO)

Variant 5: Sensor for electrohydraulic steering

Applies to: COO7

Variant 6

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 809 in other Scania systems

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