VOLVO
CEM-DF17 - CAN-L, high speed network. Faulty signal
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
5 modellerC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Hva betyr feilkoden?
A short between CAN L and CAN H on the high speed network gives CEM faulty signals. The engine may then not start, or it may stall. The fault most often lies in the harness.
Mulige årsaker
- Joined CAN L and CAN H wires on the high speed network, for example through rubbed insulation
Hva du kan gjøre
- 1Make sure the battery is charged. A weak battery can cause several faults at once and is the easiest thing to rule out
- 2Note when the engine stalls or will not start. This shows whether the fault comes and goes or is there all the time
- 3Use a multimeter to check that the CAN L wire and the CAN H wire have no contact with each other
- 4With a diagnostic tool, read the fault codes from all control modules. The fault can show as communication faults in several of them
- 5Check the high speed network connectors for loose connections and corrosion
- 6If the measurements do not show where the fault is, have a workshop check the harness, and do not replace the CEM without a confirmed fault
Symptomer du kan merke4
- The engine fails to start
- The engine stalls
- The malfunction indicator lamp is lit
- A message appears in the text display
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