Scania COO DTC 1056 CAN message missing, ACU control unit B

COO Coordinator · Scania · 3 variants

Code 1056 (decimal). Some diagnostic tools show it in hexadecimal as 0420.

In short

A CAN message about a fault in the electronically controlled brake system has been detected.

Variant 1: Electronic brake system (EBS)

Applies to: COO10 (COO)

What does Scania COO fault code 1056 mean?

What causes Scania DTC 1056?

What are the symptoms?

How to fix Scania COO fault code 1056?

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Variant 2: Electronic brake system (EBS)

Applies to: COO11 (COO)

Variant 3

Applies to: COO8 (COO)

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

Code 1056 in other Scania systems

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