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International Automotive Technicians Network
Re: 2002 GMC Yukon, Poll Did It, Or Didn't It Need It
Posted to Technical Discussion Forum on 6/30/2007

Hi Eric,

[...trimmed text...]

That's the way TIS stores the captured data. Not exactly correct as there are only 2 codes stored. It stored the P0420 as the Freeze Frame [[...]] and both codes as Failure Records [[...]... Login to read more.