VOLVO
ECM-5840 - Engine control module (ECM). Faulty check sum
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
The code is set when the engine control module (ECM) finds a fault while the optimisation parameters for the injectors are being programmed, for example an interrupted communication, a wrong checksum or an invalid value. Engine torque may then be limited, and a message is shown in the display. Correcting the fault is a workshop task.
Mulige årsaker
- Communication fault during programming
- Fault while programming the optimisation parameters
- Wrong checksum
- Invalid value entered during programming
Hva du kan gjøre
- 1Have a workshop reprogram the optimisation parameters for the injectors
- 2Clear the code only once it has been fixed, then road test to confirm the engine runs normally
Symptomer du kan merke2
- The car may lack power, hesitate or surge, for example when accelerating or pulling away
- A message and a warning symbol are shown in the display
Hva feilen kan påvirke1
- Engine torque may be limited
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.