Scania AUS DTC 78 Loudspeaker, open circuit

AUS Audio System · Scania

Code 78 (decimal). Some diagnostic tools show it in hexadecimal as 004E.

In short

Open circuit in the circuit to the mid-range loudspeaker in the rear right-hand door.

Applies to: AUS4 (CUI)

What does Scania AUS fault code 78 mean?

What causes Scania DTC 78?

How does the system react?

How to fix Scania AUS fault code 78?

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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 78 in other Scania systems