VOLVO
CEM-DD20 - LIN-bus 2. Communication fault
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 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Hva betyr feilkoden?
Communication on LIN bus 2 is blocked, so the central module cannot reach one of the connected control modules. The cause may be a short circuit in the LIN wires or a fault in another unit on the same part of the network. Depending on engine and equipment, the battery may discharge or the BLIS LED may stay off.
Mulige årsaker
- Short circuit between the LIN wires
- Fault in another unit on the same LIN network
Hva du kan gjøre
- 1Switch the ignition on and check whether the BLIS LEDs flash three times when the system is activated. Note which side does not flash
- 2If only one side does not flash, have a workshop replace the control module on that side
- 3On cars with alternator control, use a multimeter to check that the signal wire to the alternator control module has no break and no contact with ground
- 4If both LEDs flash three times but the fault remains, have a workshop check the alternator control module
Symptomer du kan merke3
- On some engines the battery electrolyte boils with the engine running
- The battery discharges
- On cars with BLIS the LED does not light
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.