VOLVO
CEM-E000 - Control module communication. Faulty communication
System
Zentralelektronik (CEM)
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 ModelleS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (5)
Was bedeutet der Fehlercode?
Communication with the module on the high speed network is seriously disturbed, so CAN communication is blocked. The module then switches itself off. The fault code can only be read out when the fault is intermittent, because the module cannot be reached while the fault is present.
Mögliche Ursachen
- Short circuit between the CAN wires in the high speed network
- Open circuit in the CAN wires in the high speed network
- Internal fault in the module
- Internal fault in another module on the same part of the CAN network
Was Sie tun können
- 1Note which fault codes are stored in which modules. This gives a good basis for the fault tracing
- 2Check first whether the CEM holds codes for lost communication, and follow those before the others
- 3Check the high speed network connectors for corrosion, loose connections and moisture
- 4Gently flex the harness with the ignition on and see whether the communication changes
- 5Resistance measurements on the network require the supply to be cut, so have a workshop make them with the proper adapter harness
- 6A module that communicates faulty must be replaced, so the workshop needs to establish which one it is
Symptome, die Sie bemerken können5
- The starter turns but the engine does not start
- The speedometer does not work
- The tachometer does not work
- The coolant temperature gauge does not work
- Cruise control does not work at all
Was der Fehler beeinflussen kann1
- The module goes into bus-off and stays disabled until its power supply is cut
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.