Hello Everyone! The ABS and brake light have come on, on my 2003 Dodge Durango. I hooked up a scan tool and got codes 01 and 21 for the ABS along with code PO456 for the check engine light. I know what the code PO456 is for, wondering what the codes for the ABS are. I am thinking that Code 21 is a right front sensor but am not 100% on that. The 01 code, I haven't a clue! Thank-you for any help