VOLVO
CEM-8B09 - Light switch module (LSM). Faulty signal
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode 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 CEM feeds the LSM backlighting from one output, and the module sends back a signal that the CEM compares with the outgoing one. When the two signals do not match, the code is set. This can be caused by a short circuit to supply voltage or an open circuit in the wire.
Mögliche Ursachen
- The background lighting signal wire to the LSM is short-circuited to supply voltage
- Open circuit in the background lighting signal wire to the LSM
Was Sie tun können
- 1With the ignition on and the lights switched on, check whether the instrument panel lighting comes on
- 2Switch the ignition off and unplug the connector to the light switch. Check that it is clean, firmly fitted and undamaged
- 3Use a multimeter to check that the signal wire is not broken and has no contact with battery voltage
- 4If the fault remains, have a workshop check the signal wire and the module
Symptome, die Sie bemerken können1
- The instrument panel lighting does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.