VOLVO
CCM-DD21 - LIN bus 2. Signal too high/Signal too low
System
Klimaanlegg (CCM)
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?
The climate control module (CCM) has found that LIN bus 2 is short-circuited, either to supply voltage or to ground. This disrupts communication with all the components on the bus, such as the damper motors, the air quality sensor and the seat heating. The symptoms may therefore be several.
Mulige årsaker
- LIN bus 2 is short-circuited to supply voltage
- LIN bus 2 is short-circuited to ground
Hva du kan gjøre
- 1Check that the fuses are intact
- 2Check that the connectors on LIN bus 2 are secure and free from corrosion
- 3Check with a multimeter that the LIN bus 2 wires have no contact with ground (the bodywork) when the connectors are disconnected
- 4Check with a multimeter that the LIN bus 2 wires have no voltage when the connectors are disconnected and the ignition is on
- 5If you have a diagnostic tool, disconnect the components one at a time and see when the code stops returning
Symptomer du kan merke4
- Mist on the windows and/or the outside mirrors
- Poor heating in the cabin
- Front seat heating does not operate
- Poor air quality in the cabin
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.