VOLVO
CEM-B102487 - Start control unit. Component Failures. Component internal failure
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:
7 ModelleS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Was bedeutet der Fehlercode?
The central electronic module (CEM) has stopped getting replies from the ignition lock control unit (SCU) and also checks the antenna unit (IAU). The fault code is stored when communication is missing, and the starter motor then cannot be turned over. The fault may be temporary or permanent.
Mögliche Ursachen
- Supply voltage to the ignition lock control unit is broken
- Earth wire to the ignition lock control unit is broken
- Signal wire to the ignition lock control unit is broken
Was Sie tun können
- 1Check the fuse for the ignition lock control unit and replace it if it has blown
- 2Check the wires and connectors between the ignition lock control unit and the CEM for breaks, chafing and loose connections
- 3With the ignition off, use a multimeter to check whether the earth wire to the control unit is broken, and whether it has voltage to earth
- 4If the fault is temporary, for example at start-up, clearing the fault code and taking a short drive may be enough. Follow up in case it comes back
- 5If the fault returns, have a workshop read the serial number of the control unit and replace it if needed
Symptome, die Sie bemerken können3
- The starter motor does not turn over
- A message appears in the information display
- The engine does not start, and starting may be unreliable, at times or all the time
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.