DTC u1000/ u1001 - Nissan Forums : Nissan Forum
 
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#1 Old 04-18-2012, 04:07 PM
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DTC u1000/ u1001

Hi , I have a 2003 Nissan Altima 2.5 SL. I recently saw my check engine light illuminate. I scanned the code with Nissan Datascan software/adapter and found U1000/ U1001. I did self diagnostics with the ecm , bcm and finally tcm. The self diagnostics however doesnt work on the TCM. It says that Connection failed. Is the U1001/ U1000 code indicate a communication problem to the TCM? If there is a bad TCM can I replace it with a used one? Do I need to perform any relearn procedure to the TCM? I have also been Noticing rough shifts for the past 3 months without any check engine light untill yesterday.
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Last edited by dude3603; 04-19-2012 at 10:29 PM.
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  Nissan Forums : Nissan Forum > Nissanclub.com Nissan - Infiniti Enthusiast Forums > NISSAN ALTIMA FORUMS > 2002-2006 Nissan Altima Forums > Engine Performance (2002-2006)

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