I just purchased a used 2009 Honda Civic LX. The car did not come with the radio codes and I cant find the serial number for the radio anywhere. I read another post and it says to use the preset 1 & 6 keys together to get two series of 4 numbers each which wehen used together are the serial number for the radio.
The problem that I am having is that when I push the 1 and 6 preset and turn on the radio, instead of two sets of numbers, I simply get DIAG.
Can anyone help with this one. Is there any other way to get the serial number?
Thanks in advance for your help