2001 lasabre pcm to a 2002 bonneville - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-02-2013, 03:16 PM   #1
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Default 2001 lasabre pcm to a 2002 bonneville

can i put a used pcm in my 2002 bonneville from a 2001 lasaber, will it run
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Old 09-02-2013, 03:33 PM   #2
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It might run, but you may lose functionality of some sub-systems like EVAP, fuel level etc. I tried to use a 96 Park Ave Ultra PCM in my 97 Bonneville. It ran, but some other things didn't work. Only way to be 100% sure is to get an Alldata subscription and compare both platforms pin for pin at the PCM.

You would be better off in the long run and find one that'* same year/same platform.
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Old 09-02-2013, 04:50 PM   #3
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ok thanks for the response, now if i swap these out and do the security relearn and things dont work out, can i put the original pcm back in with out a hitch
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Old 09-02-2013, 04:52 PM   #4
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Should be able to.
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Old 09-03-2013, 02:56 AM   #5
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If the PCM is the same part number is should be fine, but I would take it to the dealer and pay the hour labor to have them reflash it with the proper VIN and software updates.
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Old 09-03-2013, 07:49 AM   #6
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it wont run for more than a few seconds without having someone do that and some one do the security.
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