1999 Lincoln Town Car obd2 port

1999 LINCOLN TOWN CAR
286,000 MILES
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ALLENPL1008
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The OBD2 scanner is getting a error message saying not reading the vehicle. What could some of the problems be? First I had two codes PO420 & 430. Now there's no reading. I disconnect the battery over night and still saying not reading.
Jul 27, 2013 at 6:56 AM
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WRENCHTECH
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Try a different scan tool.
Jul 27, 2013 at 7:14 AM
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ALLENPL1008
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Sorry I forgot to say that in my question.I did use another scanner same results. Thank you anyway
Jul 27, 2013 at 7:54 AM
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WRENCHTECH
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That leaves you with an issue with either the PCM itself or the data line.
Jul 27, 2013 at 7:58 AM