VOLVO
CEM-B108C23 - Start Button Circuit B. General Signal Failures. Signal stuck low
System
Sentral elektronikk (CEM)
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Gjelder følgende modeller:
7 modellerS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The central electronic module (CEM) monitors the two switches in the start button, where the second sends its signal over the LIN bus. The fault shows that the second switch does not close at the same time as the first when the start button is pressed, so the signal is read as low. The fault is checked when the start button is pressed.
Mulige årsaker
- Damaged switch
- Internal fault in the ignition lock control module (SCU)
Hva du kan gjøre
- 1Check that the start button returns fully when released and is not stuck
- 2Check that the fuses are intact
- 3Check that the connectors at the start button are fully engaged and not corroded
- 4If you have a diagnostic tool, press the start button and follow the switch status in live data; both should change to on
- 5Use a multimeter (ignition off, connector unplugged) to check that the start button wires have no breaks
- 6If the fault remains, have a workshop check the start button and the ignition lock control module
Symptomer du kan merke2
- The steering lock does not lock or unlock
- The steering lock does not work
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