VOLVO
CCM-DD21 - LIN bus 2. Signal too high/Signal too low
System
Klimaanlage (CCM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
5 ModelleC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (5)
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- LIN bus 2 is short-circuited to supply voltage
- LIN bus 2 is short-circuited to ground
Was Sie tun können
- 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
Symptome, die Sie bemerken können4
- 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
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.