Scania DDU DTC 1638 Instrument Cluster SW Failure

DDU DDU control unit · Scania

Code 1638 (decimal). Some diagnostic tools show it in hexadecimal as 000666.

In short

Black Screen, non responsive display

Applies to: DDU1 (DDU)

What does Scania DDU fault code 1638 mean?

Black Screen, non responsive display

How does the system react?

The system shall restart after a sufficient timeout period

What are the symptoms?

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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 1638 in other Scania systems