VOLVO
CEM-1C22 - Relay, infotainment. Signal too low/Signal missing
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
1 ModellXC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (1)
Was bedeutet der Fehlercode?
The CEM registers that the signal to the coil of the infotainment relay is too low or missing. The cause may be a missing relay, a defective relay, or contact resistance in the relay socket. The audio system does not work.
Mögliche Ursachen
- The relay is missing
- A defective relay
- Contact resistance in the relay socket
Was Sie tun können
- 1Check that the infotainment relay is seated in its socket. If it is missing, fit an identical one
- 2Remove the relay and check that the contacts in the socket are clean and not corroded. Refit the relay
- 3Switch the ignition on, then switch the audio system on and off, and check that the relay clicks. A click shows it works
- 4If it does not click, replace the relay with an identical one. If the audio system then works, the old relay was defective
- 5Use a multimeter to check that the wire to the relay has no break. After the work, clear the code and check the audio system
Symptome, die Sie bemerken können1
- The audio system does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.