How to read codes - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 08-04-2007, 04:41 AM Thread Starter
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How to read codes

At a little over 3000 miles of trouble free operation I got an "oil change required" message. I changed oil and filter and reset the "oil change required" message. Then after about 10 miles of driving I had the "Check Engine" lamp come on. How do I get the vehicle to display the codes? Is there a way to do this without buying an OBD code reader?

I'm wondering if the warning is related to me disconnecting the air intake tubing between the air filter and turbo in order to remove and replace the oil filter. Maybe I got a leak in the air intake system?
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post #2 of 4 (permalink) Old 08-04-2007, 02:57 PM
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No way to check it with out a reader.... but just look and make sure you pluged all the senors back in..
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post #3 of 4 (permalink) Old 08-05-2007, 03:36 PM
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Just picked up a 07 3500 with 6.7 and auto. Haven't towed except to fit the hitch. 18.5 in town with 500 miles on it. My previous unit was a 96 2500 with the V-10. This one hands down blows it away.
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post #4 of 4 (permalink) Old 08-05-2007, 07:32 PM Thread Starter
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I found out how to read codes without buying anything

I found this on one of the other diesel forums and it works:

"Quickly cycle the key from off to on and leave it on on the third sweep, where the ODO is, this will be displayed "------" than any codes present than "done". have a pen and paper ready."

Tried it several times, I think it needs to be in the "Trip Miles" mode instead of "Odometer" mode.

Now to find out what P242F, P1451, and P2463 mean
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