Scania COO DTC 40 Outdoor temperature sensor

COO Coordinator · Scania

Code 40 (decimal). Some diagnostic tools show it in hexadecimal as 0028.

In short

The voltage in the outdoor temperature sensor circuit has been either above or below the permitted level.

Applies to: COO6 (COO6C)

What does Scania COO fault code 40 mean?

What causes Scania DTC 40?

How does the system react?

How to fix Scania COO fault code 40?

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

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