Which E-PROM

1985 - Present, Questions, discussions, regarding anything related to the Humvee. (NO AUCTION or EBAY)

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Action
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Which E-PROM

Post by Action » Wed Aug 04, 2021 10:40 am

Does anyone know which e-prom chip is used in the REVs? I figured plenty have been sold, so maybe someone opened up the box.
My 2009 manual still only has the chip listed for 2001 and up. Maybe a different chip used in the armored trucks?
Or, if the 2001+ chip is the newest version, what are the numbers on the top? It seems most online pics just show the bottom of the chip.... :cry:

Jason


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86humv
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Re: Which E-PROM

Post by 86humv » Wed Aug 04, 2021 5:38 pm

There are alot of trucks out there that have the : PCS unit P.N. TCM-2100AA which does not have a replacable Eprom.
Found some in computer box out of turbo trucks.
2320-01-540-2038 shows use with M1151A1
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Re: Which E-PROM

Post by Action » Wed Aug 04, 2021 6:41 pm

Ah yes. I didnt know if the chip came out of those smaller computers. I have seen the 2100AB dated 2018, and 2100BB dated 2012.
I am thinking of going thru junkyard and see if the same thing is in any gm trucks.
My m1152 now weighs over 8,000 pounds and i want to try a newer TCM and see if there is much difference.

Jason

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Re: Which E-PROM

Post by 86humv » Thu Aug 05, 2021 4:51 am

Here's the line up :
TCM-2100AA, AB, AC are turbo trucks.
TCM-2100BA, BB are M1097A2 NA trucks.
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Re: Which E-PROM

Post by Retired War Horses » Thu Aug 05, 2021 7:08 am

You end up with later shift points…
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