Applies to: DDU1 (DDU)
What does Scania DDU fault code 4104 mean?
What causes Scania DTC 4104?
How does the system react?
What are the symptoms?
How to fix Scania DDU fault code 4104?
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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 4104 in other Scania systems
- 4104hex 1008 Communication between the NOx sensor downstream of the catalytic converter and the SCR control unit.
- 4104hex 001008 Temperature sensor T251, power electronics before the radiator, short circuit to earth
- 4104hex 001008 The value of basic low idle speed from EMS is higher than the PCS low idle setting