I don't have my book in front of me but I think it means "IE" is the group of codes and "25" is the code in that group. So you have to look throught the book to find the codes in Group "IE"

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2007 Suzuki Vinson 500 4X4
2007 Toro 6.5hp
2006 BMW X5 4.4 ltr (his)
2001 BMW X5 4.4 ltr (hers)
1994 Honda XR650L
1984 Honda XR80

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