VOLVO
CEM-3F01 - Clutch pedal sensor. Signal too low
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
What does this fault code mean?
The CEM registers too low a signal from the clutch pedal sensor. Cruise control is switched off and does not work at all. The fault may be caused by a break in the signal wire or a short to ground.
Possible causes
- An open circuit in the signal cable
- A short to ground
What you can do
- 1With a diagnostic tool, follow the clutch pedal sensor signal in live data while you slowly press and release the clutch. The value should change evenly
- 2Check that the connector at the clutch pedal sensor is seated and not corroded or chafed
- 3Use a multimeter to check that the signal wire from the clutch pedal sensor has no break or short to ground
- 4If the wire is intact and the fault remains, replace the clutch pedal sensor with an identical one
- 5After the work, clear the code and check that cruise control works
Symptoms you may notice1
- Cruise control does not work at all
What the fault can affect1
- Cruise control is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.