replacing a GEM module

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boxcar - 14 Dec 2005 02:34 GMT

Trying to get myself an education.
When replacing the GEM module in a Ford 4x4, is it necessary to "Program" or
Re-program that unit. Or can a direct swap out be left at just that, without
doing anything.?

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johanb - 14 Dec 2005 04:32 GMT

> Trying to get myself an education.
> When replacing the GEM module in a Ford 4x4, is it necessary to "Program" or
> Re-program that unit.

yes

> Or can a direct swap out be left at just that, without
> doing anything.?

nope

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Hank - 14 Dec 2005 11:07 GMT

There are numbers on the GEM.... use the same ones.
Hank

On Tue, 13 Dec 2005 21:32:55 -0700, "johanb"

<ollieb1oREMOVE@THIScs.com> wrote:

>> Trying to get myself an education.
>> When replacing the GEM module in a Ford 4x4, is it necessary to "Program"
[quoted text clipped - 7 lines]
>
>nope

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boxcar - 14 Dec 2005 12:27 GMT

I heard that the Programing consists of tire size and axle ratio, so the
computer reads my speed correctly.
Is that true.?
Is that all the programing does.?

>> Trying to get myself an education.
>> When replacing the GEM module in a Ford 4x4, is it necessary to "Program"
[quoted text clipped - 7 lines]
>
> nope

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johanb - 15 Dec 2005 02:09 GMT

> I heard that the Programing consists of tire size and axle ratio, so the
> computer reads my speed correctly.
> Is that true.?

yes

> Is that all the programing does.?

no

Its looks if you have or at power windows and locks, pats,door ajar, cruise,
washers/wipers and a bunch of other things.
It also communicates with the other modules like abs,hec and pcm

> >> Trying to get myself an education.
> >> When replacing the GEM module in a Ford 4x4, is it necessary to "Program"
[quoted text clipped - 7 lines]
> >
> > nope

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boxcar - 15 Dec 2005 03:18 GMT

Sounds like replacing a GEM without doing all that progaming could darn near
disable the truck. The average auto tech doesn't have that kind of
programimg experience. So I guess that a GEM replacement job must go to a
Ford dealership. Have to assume they program it correctly in order to have
all those features you mention to be operational.

>> I heard that the Programing consists of tire size and axle ratio, so the
>> computer reads my speed correctly.
[quoted text clipped - 23 lines]
>> >
>> > nope

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johanb - 15 Dec 2005 03:46 GMT

It's not that simple anymore.....

Several different networks on 1 car, modules communicating with each other ,
etc.

You have to pull old info out old GEM with scanner, install new GEM and
upload all info back to new GEM.

Don't know if there is a way around it

People want more and more toys on there cars, it's all possible but at a
price when it breaks down.

> Sounds like replacing a GEM without doing all that progaming could darn near
> disable the truck. The average auto tech doesn't have that kind of
[quoted text clipped - 29 lines]
> >> >
> >> > nope

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