VOLVO
CEM-C1A5816 - Tire pressure sensor. General Electrical Failures. Circuit voltage below threshold
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:
7 modelsS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The central electronic module (CEM) receives the signals from the tyre pressure sensors through the remote receiver. Because the sensor positions cannot be determined on Volvo cars, the fault may apply to any of the four wheels. The code is set when the battery voltage is low in one sensor, and
Possible causes
- Low battery in the tyre pressure sensor
What you can do
- 1Read and clear the code and see whether it returns after a longer drive
- 2Check the pressure in all four tyres
- 3Have a workshop identify which sensor has the low battery and replace it if needed
Symptoms you may notice1
- Message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.