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Identifying DTC codes from an OBDII Scanner S70

posted by  Rule 308 on  Wed May 11 08:26 CST 2005
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last visit: Tue May 8 09:20 CST 2012
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Well the P0302 is easy enough. Volvo has basically two kinds of misfire codes that are cylinder specific. Ones that denote excessive emmissions, that would be a 452 in this instance, and ones that indicated possible TWC damage and they should cause the MIL to flash. Now as far as a cross reference of some sort that is going to be tough. I have yet to find one and I have a couple of different scanners in my shop, one does generic OBDII stuff and the other is Volvo specific and gives only Volvo codes. So you know what I would do but that does not help you out much. The only thing you can do on the MAF code is guess (I hate to do that) that it is your typical 850 MAF code, 121. The only other thing that I can tell you that you might run up against is the manufacturer specific "P" codes. If you come across a P code that has something other than a 0 as the first number in the sequence then it is manufacturer specific and you really need a tool that reads the factory Volvo codes to decipher it. I will look around and see if I can come up with something. The heck of it is Volvo has no interest in the generic codes so they will not lift a finger in this endeavor. When I talk to my buds in the dealership about "P" codes they look at me like I have three heads or something.

Mark






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