VOLVO
CEM-B10F196 - Key in switch. Component Failures. Component internal failure
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The CEM monitors the link to the ignition lock control module (SCU). The key-in switch is expected to close when the remote key goes in, but the SCU cannot confirm the key is in the ignition within the set time. The fault comes from inside the SCU, and the engine then does not start.
Possible causes
- A fault inside the ignition lock control module (SCU)
What you can do
- 1Note the code, clear it and start the car several times to see whether the fault returns
- 2If you have a diagnostic tool: check in live data that the key-in switch status changes when the remote key is inserted and removed
- 3Check that the relevant fuses are intact. Their locations are in the owner's manual or on the fuse box cover
- 4If the fault returns, have a workshop reprogram or replace the ignition lock control module
Symptoms you may notice1
- Engine does not start
General guidance for car owners. Diagnosis on the car can point to a different cause.