Scania COO DTC 861 Secondary wake-up signal

COO Coordinator · Scania · 4 variants

Code 861 (decimal). Some diagnostic tools show it in hexadecimal as 035D.

In short

The control unit's secondary wake-up signal is shorted to voltage.

Variant 1

Applies to: COO10 (COO)COO11 (COO)

What does Scania COO fault code 861 mean?

What causes Scania DTC 861?

What are the symptoms?

How to fix Scania COO fault code 861?

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Variant 2

Applies to: COO8 (COO)

Variant 3

Applies to: COO9 (COO)

Variant 4

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 861 in other Scania systems

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