Scania ALLISON DTC 12780544 Incompatible primary drive mode selector

ALLISON Allison automatic gearbox · Scania · 2 variants

Code 12780544 (decimal). Some diagnostic tools show it in hexadecimal as C30400.

In short

The drive mode selector is not an Allison J1939 drive mode selector or is not an approved OEM drive mode selector.

Variant 1

Applies to: A5

What does Scania ALLISON fault code 12780544 mean?

What causes Scania DTC 12780544?

How does the system react?

How to fix Scania ALLISON fault code 12780544?

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Variant 2

Applies to: A6

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