Scania ALLISON DTC 8581 Coolant temperature sensor (T79), voltage high

ALLISON Allison automatic gearbox · Scania

Code 8581 (decimal). Some diagnostic tools show it in hexadecimal as 2185.

In short

The control unit has read a coolant temperature that is less than a calibrated value.

Applies to: A4

What does Scania ALLISON fault code 8581 mean?

What causes Scania DTC 8581?

How does the system react?

How to fix Scania ALLISON fault code 8581?

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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 8581 in other Scania systems