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U1001 Diagnostic Trouble Code Discussion for February 2019

Lost Communication With XXX Control Module

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Trouble Ticket Help Requests for DTC U1001
Help Request Posted
2012 Nissan Altima 2.5L Won't shut off VIN: 1N4AL2APXC
U1001: Can communication circuit fault ecm. Have traced this down to what i think is either the meter or the connector to the meter. I have drag tested the termials in the connector and don't see an issue there. Ready to replace the meter but can't find any info on if the meter requires programing. ...
February 11, 2019
2004 Nissan Titan LE 5.6L No Start VIN: 1N6AA06B34
U1001: Can communication. ... crank. Diagnosing the starter circuit and found the following at ipdm. I have 12 volts at fuse 53 which is bat power to cpu in ipdm, I also have 12 volts from the tcm black and red wire, and 12 volts in start position at brown ignition wire of ipdm. I ...
February 25, 2019