>> According to my official Honda US-market OBD-II code list, P1399 is a
>> non- existent code. Honda does not use this code for anything.
[quoted text clipped - 3 lines]
> I got a "check engine" light yesterday afternoon. I downloaded those
> four codes from my ODBC II
Not "OBDC", just "OBD".
"OBD" stands for "On-Board Diagnostics". The version installed on your
car is #2, hence the acronym "OBD-II".
An error code itself is known as a "DTC", for "Diagnostics Trouble
Code".
> engine code reader. My book and software
> that came with the reader both state that the codes "P0" prefixes are
> generic
Sort of. They are EPA-mandated, and are supposed to be the same between
all manufacturers and models. In practice, only the ranges are identical
(P03xx is always a misfire, P04xx is always exhaust-related, etc). But
the specific codes may mean slightly different things from maker to
maker.
> and lists the descriptions. The last two are manufacturer
> specific. I searched around on the net and found a listing here.
>
> http://www.2carpros.com/trouble_codes/trouble-code-P1300-P1399.html
>
> P1399 is listed at the bottom of the page.
P1xxx is a manufacturer-specific code. Honda does not use P1399, but
some other manufacturers do. You are consulting a list of manufacturer-
specific codes for some other manufacturer, not Honda.
If your reader is in fact reporting P1399 and no other untoward symptoms
manifest, then you need to have the codes re-checked by somebody with a
Honda-specific code reader, such as your dealer. Either you are
receiving a false report from a non-compatible reader, or the ECM is
defective. I lean towards the former.

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Mark F. - 19 Apr 2007 14:42 GMT
>>> According to my official Honda US-market OBD-II code list, P1399 is a
>>> non- existent code. Honda does not use this code for anything.
[quoted text clipped - 11 lines]
> An error code itself is known as a "DTC", for "Diagnostics Trouble
> Code".
You're right sorry for the slip. I added the "C" out of habit. I also write
computer software ODBC is "Object DataBase Connectivity". Anyway I
understand the diagnostics acronym but I am not any closer to understanding
what the last code means.
I'll contact Acura.
Thanks,
Mark
Tegger - 19 Apr 2007 19:52 GMT
> You're right sorry for the slip. I added the "C" out of habit. I also
> write computer software ODBC is "Object DataBase Connectivity". Anyway
> I understand the diagnostics acronym but I am not any closer to
> understanding what the last code means.
>
> I'll contact Acura.
The last code DOES NOT MEAN ANYTHING.
Honda DOES NOT USE code P1399.
You are reading a code that it is not possible for your ECM to store or
report.
Take the car to somebody who has a code reader that explicitly recognizes
HONDA/ACURA error codes. Honda and Acura dealers have such equipment, as do
independent shops that specialize in Hondas.

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Tegger - 19 Apr 2007 22:19 GMT
> Take the car to somebody who has a code reader that explicitly
> recognizes HONDA/ACURA error codes. Honda and Acura dealers have such
> equipment, as do independent shops that specialize in Hondas.
Actually, the dealer will likely charge you between $80 and $100 to do the
code-read.
AutoZone, PartSource and other chains will read the code for you for free.
Try that first and see what codes they come up with.

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