Scania ALLISON DTC 49408 Lost communication with the engine management system (J1587)

ALLISON Allison automatic gearbox · Scania

Code 49408 (decimal). Some diagnostic tools show it in hexadecimal as C100.

In short

It should not be possible to set this fault code in a control unit fitted to a Scania vehicle.

Applies to: A4

What does Scania ALLISON fault code 49408 mean?

What causes Scania DTC 49408?

How does the system react?

How to fix Scania ALLISON fault code 49408?

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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 49408 in other Scania systems