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Old 08-10-2013   #9
Franke
 
Join Date: May 2013
Location: Beaver, PA
Posts: 515
Default Re: Something stupid??? I HOPE!!!

YZ, you can enter diagnostic mode by a jumper from pins A to B of the ALDL conn. A is the first terminal from the right of the ALDL connectors top row and is Ground. B is the second terminal from the right of the ALDL connectors top row and is the ECM diagnostic term. it will flash the SES light code 12 three times and then give any stored codes 3 times as well. Turn the igniton to on after grounding the "B" term. Do not start the engine.
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