Engine speed – Overspeed
â–¶ How to fix
Inform the driver of the risks of engine damage at high engine speeds.
What you'll see
No driver-visible symptom recorded.
System reaction
The fuel injection (engine) cuts off when the engine speed exceeds 3000 rpm and stays off until the engine speed is below 3000 rpm. The exhaust brake tries to brake the engine as much as possible. Afterwards the engine will function normally again.
Diagnostic depth
Detection
The engine speed has been above the permitted level.
Possible cause
Incorrect handling, e.g. incorrect downshifting.