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U1000 Diagnostic Trouble Code Discussion for September 2013

Class 2 Communication Malfunction


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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2004 Chevrolet Silverado 2500 6.0L No Start, No Communication VIN: 1GCHK24U34
U1000: Class 2 Communication Malfunction. Vehicle has following symptoms: no crank, no start, no communication with PCM or TCM. Trying to use AESwave Linespi, but not sure what pins to probe (no user manual provided). Need help on resolving the no communication problem. Fuse for cigarette lighter was ...
September 04, 2013
2006 Nissan Frontier SE 4.0L Hesitation, MIL Lamp on, poor shifting VIN: 1N6AD06U36
U1000: Controller Area Network Line Malfunction. After countless sleepless night, I decided to turn to my few iATN-er for help ( I figured if you guys can't help, no one can). We got this 06 Nissan Frontier Pu came in on the hook with a no start concern. Found ecm was not grounding fuel pump relay, so we rep...
September 20, 2013
2006 Nissan Frontier SE 4.0L Hesitation, MIL Lamp on, poor shifting VIN: 1N6AD06U36
U1000: Controller Area Network Line Malfunction. After countless sleepless night, I decided to turn to my few iATN-er for help ( I figured if you guys can't help, no one can). We got this 06 Nissan Frontier Pu came in on the hook with a no start concern. Found ecm was not grounding fuel pump relay, so we rep...
September 21, 2013
2004 Chevrolet Silverado 2500 6.0L No Start, No Communication VIN: 1GCHK24U34
U1000: Class 2 Communication Malfunction. Vehicle has following symptoms: no crank, no start, no communication with PCM or TCM. Trying to use AESwave Linespi, but not sure what pins to probe (no user manual provided). Need help on resolving the no communication problem. Fuse for cigarette lighter was ...
September 04, 2013
2006 Nissan Frontier SE 4.0L Hesitation, MIL Lamp on, poor shifting VIN: 1N6AD06U36
U1000: Controller Area Network Line Malfunction. After countless sleepless night, I decided to turn to my few iATN-er for help ( I figured if you guys can't help, no one can). We got this 06 Nissan Frontier Pu came in on the hook with a no start concern. Found ecm was not grounding fuel pump relay, so we rep...
September 20, 2013
2006 Nissan Frontier SE 4.0L Hesitation, MIL Lamp on, poor shifting VIN: 1N6AD06U36
U1000: Controller Area Network Line Malfunction. After countless sleepless night, I decided to turn to my few iATN-er for help ( I figured if you guys can't help, no one can). We got this 06 Nissan Frontier Pu came in on the hook with a no start concern. Found ecm was not grounding fuel pump relay, so we rep...
September 21, 2013