Strange error message - 'Incorrect Part Fitted'
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In my case, it was a poor connection on the bottom side of the left engine fuse box. (That caused a voltage division under load allowing partial voltage across the TCM and the remaining voltage across that poor connection). I cleaned all of those connections on the box and and have had no issues since (years). In general, a poor connection may cause a correct part to be reported as incorrect.
Last edited by Dr. D; 07-19-2017 at 04:28 PM. Reason: verbage
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Andy Cox (07-20-2017)
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Just a heads up for anyone doing similar test, Front probing with a voltmeter may indicate incorrect (no load, supply voltage )readings. You Tube has many videos on the strength of back probing over front probing to determine true voltage under load. (probably ranging from the supply voltage to much less, depending on the resistance within the connections)
The following users liked this post:
Andy Cox (07-20-2017)