Scania DDU DTC 4407 Internal amplifier Clock error - I2C Watchdog event or general Clock Error event

DDU DDU control unit · Scania

Code 4407 (decimal). Some diagnostic tools show it in hexadecimal as 001137.

In short

Fault detected by internal amplifier diagnostic

Applies to: DDU1 (DDU)

What does Scania DDU fault code 4407 mean?

What causes Scania DTC 4407?

What are the symptoms?

How to fix Scania DDU fault code 4407?

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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.

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