Join Date: Mar 2010
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The check engine light would only come on for a few seconds each time and then go off, it never would come on and stay. The 603 error is supposed to mean that the battery had been disconnected, thus no power to the PCM, but as I mentioned the battery had not been disconnected.
The scanner I am using is an OTC Scan Pro. OTC tech support says that there is no reason why the buzz test should not run.
The WTS seems to be working just fine.