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U1000 Diagnostic Trouble Code Discussion for November 2012

Class 2 Communication Malfunction


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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2003 GMC Envoy XL SLE 4.2L No Start VIN: 1GKET16S93
U1000: class 2 data malfuction. Good Morning. This envoy VERY intermittently will not start and sets the four codes above afterwards. Never have I experienced the symptom or these codes while in our possesion. Anyone know of a common link that triggers this combination and symptom. Many tha...
November 15, 2012
2003 Chevrolet Corvette 50th Anniversary Edition 5.7L MIL Lamp on VIN: 1G1YY32G33
U1000: Class 2 Communication Malfunction. We have an 03 vette that every once in a while when you go to start the dash lights up like a christmas tree, it still runs ok but with limited power. The codes all refer to a communication problem. We replaced the battery and cleaned the main grounds up, beca...
November 20, 2012
2003 GMC Envoy XL SLE 4.2L No Start VIN: 1GKET16S93
U1000: class 2 data malfuction. Good Morning. This envoy VERY intermittently will not start and sets the four codes above afterwards. Never have I experienced the symptom or these codes while in our possesion. Anyone know of a common link that triggers this combination and symptom. Many tha...
November 15, 2012
2003 Chevrolet Corvette 50th Anniversary Edition 5.7L MIL Lamp on VIN: 1G1YY32G33
U1000: Class 2 Communication Malfunction. We have an 03 vette that every once in a while when you go to start the dash lights up like a christmas tree, it still runs ok but with limited power. The codes all refer to a communication problem. We replaced the battery and cleaned the main grounds up, beca...
November 20, 2012