Variant 1
Applies to: EMS S6EMS S6 (EMS S6 EuroIII)
What does Scania EMS fault code 4112 mean?
The engine speed has exceeded a limit value for a certain period.
What causes Scania DTC 4112?
The fault may be caused by a poor gear change or by fuel dilution of the oil.
How does the system react?
The exhaust brake has been activated to brake the engine speed. The maximum engine torque is reduced by approximately 30% as long as the fault is active. In addition, the engine's high idle speed is lower than usual.
How to fix Scania EMS fault code 4112?
- Inform the driver of the risks of engine damage at high rotational speeds.
- Check that there are no fuel leaks.
Variant 2
Applies to: EMS S6 IoM singlespeed (S6IM)
Detection
The engine speed has exceeded a limit value for a certain period.
Possible cause
The fault may be caused by a poor gear change or by fuel dilution of the oil.
System reaction
The maximum engine torque is reduced by approximately 30% as long as the fault is active. In addition, the engine's high idle speed is lower than usual.
How to fix
- Inform the driver of the risks of engine damage at high rotational speeds.
- Check that there are no fuel leaks.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.