robs Posted January 3, 2018 Report Share Posted January 3, 2018 i have a 94 eldarado 4.6 northstar when i found out how to see the codes and one said, pcm with a ? i know that pcm is power control module the code was pcm? is their a problem with the power control module and can it be reset anyone, thanks Link to comment Share on other sites More sharing options...
OldCadTech Posted January 3, 2018 Report Share Posted January 3, 2018 Its asking you if you want to enter the PCM to look at the different parameters. If there is a code it will appear as P0300 for example. If you enter diagnostics and it goes directly to the PCM? there are no codes. THERE IS ALWAYS ENOUGH TIME TO DO THE JOB RIGHT - THERE IS NEVER ENOUGH TIME TO DO THE JOB AGAIN !!! Link to comment Share on other sites More sharing options...
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