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Old 08-10-2007, 09:17 PM   #1
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Default Where is the "Vehicle Data" Stored....

in the DIC...I want to Reset the PCM and dont want to loose the stored memory such as the fuel econ, oil life, fuel range, and the rest of the memory

if i just pull the PCM Fuse will this reset the PCM?
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Old 08-10-2007, 09:22 PM   #2
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i am pretty sure just by cutting power to the PCM its not going to erase the DIC info.
That would seem wired if they did it that way

but i could be wrong.
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Old 08-10-2007, 09:39 PM   #3
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Hey Pat, I don't believe the PCM stores that info....I'm not sure where it is stored, but I don't recall it resetting when I disconnected the battery overnight. Unfortuantely that'* just a theory so I don't want you to run with it Hopefully someone else can confirm.
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Old 08-11-2007, 02:24 AM   #4
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I'm not 100% certain, either, but I believe that information is stored either in the instrument cluster cluster itself, or the Dash Integration Module.
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Old 08-11-2007, 03:37 AM   #5
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On my 2000 i know if i disconnect the battery for only a few minutes it will reset everything in the DIC, it could be different for other years but im guessing 2000-2005 is all the same.
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Old 08-11-2007, 09:02 AM   #6
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I believe it is stored in the Body Control module.
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Old 08-11-2007, 10:34 AM   #7
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The Body Control module is indeed in charge of storing and relaying all data to the DIC.
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Old 08-11-2007, 11:42 AM   #8
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I didn't think that the 2000+* had one module known as the body control module, but that it was actually the IPM, DIM, and RIM working together, that made up what is generally referred to as the Body Control Module?
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Old 08-11-2007, 08:50 PM   #9
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Quote:
Originally Posted by Archon
I didn't think that the 2000+* had one module known as the body control module, but that it was actually the IPM, DIM, and RIM working together, that made up what is generally referred to as the Body Control Module?
You're correct. Collectively they control a large variety of functions. I believe (although I could be wrong) that part of the reason there are three modules is simply geographics. For example, the Rear Integration Module takes care of many functions relating to items in the back of the car and which connect closely to the electrical centre under the rear seat.

I do recall reading that info such as oil life remaining needs to be recorded before replacing specific modules so that info can be replaced. I looked over my documentation again and for the life of me can't remember where I saw this. I don't believe that any 'one' module stores all the information. It also seems reasonable that the PCM will be responsible for at least a portion of the data (although I can't say with 100% certainty).
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Old 08-12-2007, 12:31 AM   #10
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This some informaition on the various modules
Modules
Electrical Diagrams
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