Question

i get the c0631 code on my 03 h2 humme rwhat is that where is that

Answer 1

C0631 Air suspension sensor RR (right rear)

When this condition occurs ,the air suspension function are disabled, some of the cause for this is the height sensor malfunction,a short or open in the RR height sensor. If the Height sensor is replaced a calibration needs to be performed.by use of a factory scan tool.