Scania COO DTC 65433 Coolant level monitor, short circuit to earth

COO Coordinator · Scania

Code 65433 (decimal). Some diagnostic tools show it in hexadecimal as FF99.

In short

The voltage level on the coolant level monitor pin is too low.

Applies to: COO8 (COO)

What does Scania COO fault code 65433 mean?

What causes Scania DTC 65433?

What are the symptoms?

How to fix Scania COO fault code 65433?

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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.

Code 65433 in other Scania systems