OBDII P2509 code - DodgeForum.com



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OBDII P2509 code

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  #1  
Old 08-05-2006, 12:39 AM
oldVOR
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Default OBDII P2509 code

Can't seem to find a reference for this code.
It's the only one that comes up on the diagnostic display.

Any help appreciated!

Thanks......
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Old 08-05-2006, 12:40 PM
max39
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Default RE: OBDII P2509 code

are you using a scanner? the keyon/keyoff * 3 method didn't work for me. I got a 1693 but the scanner showed that plus another code.

Anyway, I googled and found this:

http://www.3800pro.com/lists/obd2codes.html

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Old 08-05-2006, 01:31 PM
oldVOR
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Default RE: OBDII P2509 code

I used the key on/off method and initially found it to be a bit tricky to get it right. The trick is not to actually turn it back too far to the "LOCK" position but just between the "ON/RUN" and "OFF" position. I can do it consistently with this method......initially turn to "ON/RUN" and back to "OFF", the "OFF" is my first count and I do it twice more ending with a half count being the "ON/RUN" position.

ON/RUN - OFF (one)
ON/RUN - OFF (two)
ON/RUN - OFF (three)
ON/RUN (display will show codes if any or "DONE" if none)


Thanks for the link to the OBDII codes, it is the most comprehensive list I've seen thus far......

Now, I wonder how or why I'm getting the P2509 fault "ECM/PCM Power Input Signal Intermittent"......especially since I've not noticed any issues with the truck at all......

Thoughts from the collective group?????
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