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3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Code P2509

   
Old Jun 1, 2007 | 08:58 PM
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JARHEAD
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From: Bay Minette,Al.
Code P2509
ECM/PCM Power input signal intermittent. Anybody ever had this one??

Kip
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Old Jun 2, 2007 | 09:08 AM
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HOV
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From: Northern VA
Yes. It happened one day when startup was anomalous - I had a power surge of some kind then that code threw. I let it go for a few ignition cycles and it went away. Hasn't come back.
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Old Mar 5, 2020 | 01:08 AM
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Gang Land
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p2509 happened to me when my battery cables were loose I tighten them up and that was the fix of that
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