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Altima Nissan Altima Sedan Discussion Forum

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  #16  
Old 09-18-2017, 10:45 PM
paulorlo paulorlo is offline
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2005 Altima Sedan
 
Join Date: Dec 2016
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I also went to a nissan dealer near me and he basically told me the same things that you had said almost to a tee. You are right on in your analysis.
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  #17  
Old 10-06-2017, 11:57 AM
paulorlo paulorlo is offline
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2005 Altima Sedan
 
Join Date: Dec 2016
Posts: 21
Default no sucess

SIA Electronic returned the CPU and said there is nothing internally wrong with the computer. I still cannot communicate with the CPU and there is no SES light that comes on when the ignition key is turned to the on position.
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  #18  
Old 10-07-2017, 05:08 PM
paulorlo paulorlo is offline
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2005 Altima Sedan
 
Join Date: Dec 2016
Posts: 21
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Well I have the CPU back from the repair company and they say that there is nothing wrong with the CPU it is working as it should. I installed the CPU and there is still no SES light after turning the key to the on position. Not able to communicate with CPU through OBD2 port.
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  #19  
Old 10-14-2017, 04:19 AM
paulorlo paulorlo is offline
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2005 Altima Sedan
 
Join Date: Dec 2016
Posts: 21
Default Problem solved

I believe what happened is that I lost two grounds to the motor as a result of corrosion. That problem damaged the CPU and the IPDM. Repairing the two grounds before the CPU was returned repaired did not fix the problem. Going to a junk yard and replacing the IPDM fixed the problem. I had noticed different electrical issues like the turn signal chime being very low in volume and the key left in the ignition chime would work and other times not work. The loss of motor grounds I believe was causing those issues too. Thank you for all your help. My next task is to replace a blown head gasket.
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