Please help me find relationship b/w 2 hex strings

[akn10red]

Hi Everyone!
I'm actually trying decode two hex strings to find a relationship between them. I have logged some communication between ECU and a trouble code scanner. There are number of messages being sent, most of which are constant every time. However there is one message (that is sent from the user side) that keeps on changing each time which is dependent upon the last message received from the ECU (which is different every time)
I'm posting four (4) different responses from logged data at four different times.

Previous reply (received)              Next Message (sent)


05 67 03 7E 60 AD 00 00                05 27 04 6F 67 4E 00 00


05 67 03 5D 76 A5 00 00                05 27 04 26 40 7D 00 00 


05 67 03 9C AE E0 00 00                05 27 04 CE 1F 66 00 00


05 67 03 3E 98 0D 00 00                05 27 04 BA 0C C9 00 00

as it can be seen first 3 bytes of a message in both reply and sent message are same each time but next 3 bytes vary every time data is logged...
can anyone please try to figure out relationship between the previous message received and the next message that we are sending? I've spend hours but couldn't figure it out. Any kind of help would be highly appreciated