Diagnostic Code

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Oct 12, 2006 | 01:54 AM

malukiju

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Joined: Oct 2006

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Diagnostic Code

A diagnostic code came up on my 2003 2500 cummins and the code is 2509. Does anyone have any idea where I can find a list of diagnostic codes and their meanings or just knows? Thanks

Oct 12, 2006 | 03:58 AM

donnie

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Joined: Sep 2005

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RE: Diagnostic Code

There has to be some letter before the code numbers.

Oct 12, 2006 | 05:06 AM

dodgerules86

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Joined: Dec 2003

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From: Sycamore, Illinois (displaced to Arkansas)

RE: Diagnostic Code

Well, one would assume its P2509 (since most codes are PXXXX).
P2509 = Powerdown Date Lost Error
Basically, power to the PCM was lost for a certain amount of time.
Check for good 'n tight connections at the batteries. Also check for proper battery voltage.