VOLVO
CEM-2F02 - Seat position sensor, driver. Signal too low
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
1 modelXC90 (2003–)
Show models by year and engine (1)
What does this fault code mean?
The CEM registers a signal from the driver's seat sensor that is too low. An SRS warning message may appear in the display. The usual cause is a short to ground in the signal wire or the connectors between the CEM and the sensor.
Possible causes
- A short to ground in the signal wire or connectors between the CEM and the seat position sensor
What you can do
- 1Safety: the SRS system controls the airbags. Do not work on the wiring or sensors of the SRS system yourself. Have a workshop fix the fault
- 2Look under the seat for connectors that are visibly loose or damaged, without removing anything. If you find one, have a workshop fix it
- 3With a diagnostic tool, read the fault code after switching the ignition off and on, and see whether it returns
- 4After the work, clear the code and check that the SRS warning does not return
Symptoms you may notice2
- The information lamp is lit
- An SRS warning message appears in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.