P0603 & P1000 codes - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 10-04-2008, 03:04 PM   #1 (permalink)
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P0603 & P1000 codes

my 2004 F-350 is showing me both P0603 & P1000, i understand that they are time delayed codes but what does that mean, i just have to wait a while fur them to dissapear??
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Old 10-04-2008, 06:07 PM   #2 (permalink)
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I'm not sure what a "time delayed" code is, and I can't find P0603 in the Ford manual.
P1000 means "The OBD monitors are carried out during the OBD drive cycle. DTC P1000 is stored in continuous memory if any of the OBD monitors do not carry out their full diagnostic check. " drive more cause it ain't finished checking yet.

How did you read the P0603 code? Do you have a chip or tuner?
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Old 10-04-2008, 08:51 PM   #3 (permalink)
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Do you have a driveabilty issue? If you just installed or are running a tuner you are likely to see both of those codes on it.
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Old 10-05-2008, 11:31 AM   #4 (permalink)
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P0603= Internal Ctrl Mod KAM(keep alive memory) Error.
I would get this code w/ a Superchips Max Micro Tuner # 1704A,but have since switched to a Flashpaq and have never gotten it since.
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Old 10-05-2008, 03:49 PM   #5 (permalink)
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yeah its juts the bully dog power pup, its happened ever since i took it in for warranty work, i obviously took the downloader out prior to taking it into Ford, but yeah like i said i tried to put it back in after the work and it hasnt worked. in the manual for the programmer its says that these two codes are common and may disapear over time but its been a while.
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Old 10-05-2008, 04:33 PM   #6 (permalink)
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Happened to me after a dealer visit also.I know they reflashed the truck,and when I got home I could't use the programmer.It said it need to be updated and had to send it back to Superchips,when I got the unit back, that's when I would get these codes,and that's why I got the Flashpaq because it's internet upgradable.
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Old 10-05-2008, 06:20 PM   #7 (permalink)
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Quote:
Originally Posted by mulishadiesel View Post
my 2004 F-350 is showing me both P0603 & P1000, i understand that they are time delayed codes but what does that mean, i just have to wait a while fur them to disappear??
These are two very different codes and neither code is self clearing by virtue of time.

A P0603 is as mentioned, a loss of Keep Alive Memory (KAM) which can either be cleared with a scan tool or by removing battery power from the PCM KAM power circuit that supplies 12-volts to maintain the memory. Clearing KAM with a scan tool will not trigger a P603 but if battery power is low or removed altogether the memory is lost and the code is set. This could be caused by a module disconnect, programming, low battery, disconnected battery or a wiring concern that causes KAM power to be removed. Like most codes, a P0603 is cleared after 40 engine warm-up cycles without the fault being detected.

A P1000 code is a little different. A P1000 is defined as "OBD inspection maintenance (IM) readiness." What this means is that all of the that On Board Diagnostic monitors have NOT been completed since the PCMs keep alive random access memory was last cleared. These "monitors" in simple terms mean that the PCM performs tests on certain components and engine subsystems to validate the integrity of the components and control system. Once these self tests have been completed the P1000 code is cleared. Some of these self tests are simple circuit checks and others are dynamic either testing output components directly or by sensor feedback. Certain tests require specific conditions to be performed therefore the time it takes for all of the monitors to be completed and the P1000 to be cleared will vary. I have seen PCMs with a P1000 and hundreds and even over a thousand warm ups logged in the PCM.

In most states like the great state of New Jersey for example, (where Doc practices "diesel wizardry") our vehicle inspection process requires that our PCMs be emission code free and the P1000 code is not present.
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Last edited by ford_doctor; 10-05-2008 at 06:43 PM.
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Old 10-07-2008, 09:04 PM   #8 (permalink)
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hey thanks alot ford doctor really apprectaite it, guess ill just have to wait it out then
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Old 09-18-2012, 06:49 PM   #9 (permalink)
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Hey Doc,

We have an '06 F250 KR that decided it didn't want to play nice with us anymore. OBD2 code is P1000 but the truck won't turn over. Glow plugs light up / go away on the dash like normal. You can hear the fuel pump turn on (act normal). The truck cranks but won't start... Any suggestions?
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