VOLVO
SUM-C111C29 - Left Front Body Acceleration Sensor. General Electrical Failures. Signal plausibility failure
System
Suspension Module (SUM)
Volvo models this fault code applies to
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 suspension control module (SUM) receives a voltage from the left front acceleration sensor that does not make sense. The sensor may be fitted incorrectly, have poor contact, or be damaged. Four-C stays switched off for as long as the fault remains.
Possible causes
- Acceleration sensor fitted incorrectly
- Contact resistance or oxidation in the connectors
- Damaged acceleration sensor
What you can do
- 1Read the fault code and see whether the fault status still shows a fault after a test drive
- 2Check that the connector at the left front sensor is firmly seated and not corroded
- 3Have a workshop confirm the left front sensor is fitted correctly and replace it if needed
Symptoms you may notice2
- Message in the text display
- Four-C does not work
What the fault can affect1
- Four-C function is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.