PCM/ECM 7.3 OBDII Update

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Product Overview

If your truck is a 1994.5-1996 and want to get the PCM updated to have full OBDII capabilities with a scan tool, choose this service. If the "tear tag" on the PCM access cover or connector label reads TDE0/TDE1 (Auto Trans) or MLE0/MLE1 (Manual Trans), then no updates are needed.

*** On 1994.5-1997 trucks, if a scan tool will not connect, or the tuner download has failed, the problem is most likely due to a failed Comm Circuit in the PCM, meaning the PCM needs to be rebuilt, not a reflash/recovery


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