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Old 06-08-2019, 06:27 PM   #4 (permalink)
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Rvn4me's Avatar
Join Date: Jun 2016
Posts: 2,242

P0700 is the TCM requesting a MIL (Malfunction Indicator Light aka: "check engine"). All the 700 code does is tell the ECM "something's wrong" and to illuminate the MIL. There is another code in the TCM that you need to pull that will actually tell you what the malfunction is.
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