Scania COO DTC 547 Manual activation of retarder

COO Coordinator · Scania · 5 variants

Code 547 (decimal). Some diagnostic tools show it in hexadecimal as 0223.

In short

The voltage in the circuit for the retarder lever or for the auxiliary brake lever has been below the permitted level.

Variant 1

Applies to: COO10 (COO)COO8 (COO)

What does Scania COO fault code 547 mean?

What causes Scania DTC 547?

What are the symptoms?

How to fix Scania COO fault code 547?

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Variant 2: Auxiliary brake lever, short circuit to earth

Applies to: COO11 (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 547 in other Scania systems

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