motor help

Subject: Re: motor help Tue Apr 08, 2008 12:25 am

well, after searching for about an hour i came up with this
http://autorepair.about.com/library/faqs/bl152i.htm

ENABLING

Vehicle Theft Security System:
The VTSS engine no-run feature is disabled when it is shipped from the factory. This is done by programming within the Powertrain Control Module (PCM) . The logic in the PCM prevents the VTSS engine no-run feature from arming until the engine start counter within the PCM sees twenty engine starts. The VTSS no-run feature must be enabled when the vehicle is received from the assembly plant.

The preferred method for enabling the VTSS engine no-run feature is to electronically advance the PCM engine start counter using a DRB scan tool. Refer to the Vehicle Theft Security System menu item on the DRB scan tool for the procedures. Once this condition has been met, the PCM will allow the engine no-run feature to arm.

Once the VTSS engine no-run feature has been enabled, it cannot be disabled unless the PCM is replaced with a new unit. The same VTSS engine no-run feature enable logic will apply anytime the PCM is replaced with a new unit.[b]

Sorry for the bad news.
from the looks of it, not even the factory or a pcm flash will do the trick

on a good note, it seems you can get a reprogrammed one off of ebay
http://cgi.ebay.com/ebaymotors/94-06-Jeep-Grand-Cherokee-ENGINE-COMPUTER-ECM-PCM-ECU_W0QQcmdZViewItemQQcategoryZ33596QQihZ002QQitemZ120241749501QQrdZ1QQsspagenameZWDVW
u may want to email them or something

Subject: Re: motor help Tue Apr 08, 2008 7:09 am

actually the PCU and VTSS are from the same vehical and were programmed from the factory to work together. I just need to figure how to make them talk and operate so they still think they are in the original jeep. So I guess I'll give this a try and see if it works then go ahead and order a new PCU. I didn't even think about looking on ebay for them, so I appreciate the heads up.
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Subject: Re: motor help Tue Apr 08, 2008 8:44 am

ah, I didnt read your whole post before, sorry.
Now that I did, it sound like you have a game plan. I wish you the best of luck.

Subject: Re: motor help Tue Apr 08, 2008 8:47 pm

well after a valiant try it looks like i'm going to have to admit defeat. I'm going to have to order one of the those PCUs off of ebay.
_________________
"A yahoo made dangerous with power tools"

accepting reservations now for the "palace of love"

Subject: Re: motor help Tue Apr 08, 2008 8:58 pm

nothing at a local junk yard?
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Subject: Re: motor help Tue Apr 08, 2008 9:31 pm

problem is 99% of the zjs came with the alarm stock. its actauly rare to find one that does not have it from what ive been told.
_________________
"A yahoo made dangerous with power tools"

accepting reservations now for the "palace of love"

Subject: Re: motor help Wed Apr 09, 2008 7:00 am

there is no way to install the wiring for the door to deactivate the alarm?
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Subject: Re: motor help Wed Apr 09, 2008 10:59 am

no because the wireing for the SAM doesn't even exist to splice it in. so I tried to tap into the wires going into the pcm in the enigine compartment and after an hour of messing around i gave up. I already have over a day tied up with it and figure my time would be better spent other places. I called The pcu people from the internet and he said that he didn't even think that any of them even came with out the security and that all his were programmed for it. So it would take him a few days to program one without the security. To make a long story short the new pcu should be here next week.
_________________
"A yahoo made dangerous with power tools"

accepting reservations now for the "palace of love"