VOLVO
SUM-C1A0512 - Left Rear Height Sensor. General Electrical Failures. Circuit short to battery
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 height sensor at the left rear wheel gives a signal with too high a voltage, which the SUM interprets as a fault. The height sensor shows the body's position, so when the signal is wrong the Four-C function is switched off.
Possible causes
- The signal cable from the height sensor is short-circuited to voltage
- Damaged height sensor
What you can do
- 1Read and note the code, clear it and road test the car to see whether the fault comes back
- 2Check that the relevant fuses are intact; their locations are in the owner's manual
- 3Inspect the cable from the height sensor at the left rear wheel for chafing, pinch damage and loose clips
- 4Check that the connector at the height sensor is firmly fitted and free from corrosion
- 5If the fault returns, have a workshop with diagnostic equipment check the height sensor and the wiring
Symptoms you may notice2
- A message appears in the information display
- The Four-C function does not work
What the fault can affect1
- The Four-C function is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.