Scania DDU DTC 4211 External amplifier, channel 4, short circuit to earth

DDU DDU control unit · Scania

Code 4211 (decimal). Some diagnostic tools show it in hexadecimal as 001073.

In short

The DDU control unit has measured a voltage that indicates a short circuit to earth.

Applies to: DDU1 (DDU)

What does Scania DDU fault code 4211 mean?

What causes Scania DTC 4211?

How does the system react?

What are the symptoms?

How to fix Scania DDU fault code 4211?

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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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