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1693 and 602 code...
My truck displayed a 1693 and 602 code today. I haven't had any problems. I changed the tranny fluid and engine oil recently. any ideas what this is? From what I understand, these are ECM related but I'm looking for specifics.
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'02 2500 HO 6 speed, quad cab, 2wd, tuned by Jim Jessup, 144k miles
1 Timothy 1:15-16
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