07 Impala LS keyless remote problems - Impala Tech
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post #1 of 4 (permalink) Old 08-13-2010, 05:50 PM Thread Starter
 
 
Join Date: Aug 2010
Location: Noble County Indiana
Posts: 3
 
07 Impala LS keyless remote problems

I have a 2007 Impala LS, 3.5 w/55K on it that I just got. Great car with one exception. You lock the car with the remotes and when you come back later (15 minutes+), nothing! After manually unlocking the door and opening it (interior lights on) then the remotes work again. While they're working the range is easily 150 feet+ so the receiver/antenna appears to be good. My thinking is something in the pcm is "going to sleep" and killing power to the keyless system and staying that way until the door opening applies power. Since I'm not real GM literate yet I'm not sure where to look and I really don't want the dealer to charge me an $80.00 diagnostic fee just yet. Any help greatly appreciated.

Last edited by TsgtRet; 08-31-2010 at 11:26 AM.
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post #2 of 4 (permalink) Old 08-13-2010, 11:19 PM
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Join Date: Jan 2006
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I have no idea as to the cause, or repair (clueless because I ripped the EFI out of my 1989 Caprice and converted it over to a carbureted, HEI distributur, no ECU control over anything kind of car car), but from reading everything posted on this board over the years I would suspect a defective security circuit in your ECU that is associated with the alarm.

Big Dave
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post #3 of 4 (permalink) Old 08-31-2010, 11:29 AM Thread Starter
 
 
Join Date: Aug 2010
Location: Noble County Indiana
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Fixed!!!

Well it turned out to be a faulty RCDLR and the dealer warrantied it on the premise of "once a recall part, always a recall part". It had had originally been replaced for the range problem early in the cars life.
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post #4 of 4 (permalink) Old 08-31-2010, 04:30 PM
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Glad to hear you got it resolved.

Big Dave
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electrical, keyless, remotes

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