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  #1  
Old 08-29-2006, 10:30 PM
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Join Date: Dec 2004
Posts: 76
ML 430 stuck in limp home

ok. finally got the thing to a repair shop. it's stuck in limp home mode after changing the battery out. you can shift it into drive but it has some difficulty going back up into park.no problems before changing the battery! also, no lite on the digital readout as to which gear you're in. tried unplugging the battery to reboot it, didn't work. any ideas? it's at a repair shop, but not a dealer. will their scanner be able to correctly identify the problem, and can they "recode" the tcm? it's a 2000 (touchshift)
thanks.

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  #2  
Old 08-29-2006, 10:41 PM
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Location: Evansville WI
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WOW is that ever weird. Never heard of that before. Didn't have anything like a bad jump-starting experience before changing the battery? Gut reaction is new shifter assembly (SCM).......
Gilly
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  #3  
Old 08-29-2006, 10:45 PM
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yeah, did some jump starts off a Prestone "jump it." used it many times before over the years. it worked fine, but the radio and sunroof and transmission all went at once! luckily the radio came back after re-entering the code, but not the transmission.
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  #4  
Old 08-30-2006, 12:57 AM
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Join Date: May 2005
Location: OREGON
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Gilly - ESM, not SCM -SCM is steering column module

teddavies - Did you change the battery yourself? Was the key in position 2 when you did it?
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  #5  
Old 08-30-2006, 06:16 PM
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ok here's the codes:

po720
po750

other codes:
37
38
39
52
( all off the tcm i believe)

what does the combination of these codes mean? or is it as simple as replacing the individual items?

thanks.
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  #6  
Old 08-30-2006, 09:17 PM
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Quote:
Originally Posted by Melcher View Post
Gilly - ESM, not SCM -SCM is steering column module
doh!
Gilly
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  #7  
Old 09-01-2006, 11:27 AM
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ok, the mechanic wants to replace to entire shifter assembly- but it's also showing codes for po720 and po750 -will these items need to be replaced as well?

thanks.
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  #8  
Old 09-01-2006, 04:51 PM
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On the touchshift, there are no seperately available parts, have to replace the whole thing.
Gilly

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