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U1000 Diagnostic Trouble Code Discussion for May 2009

Class 2 Communication Malfunction


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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2001 Chevrolet Impala LS 3.8L No Start, MIL Lamp on VIN: 2G1WH55K01
U1000: Class 2 Communication Malfunction. HI out there I am in need of help from you gm tecs or pcm networking tecs out there this is the kind of challenging we all love to figure out but pull are hair out trying to fix it this car comes to me from another shop that has spent 3 or so weeks on and has ...
May 02, 2009
2001 Chevrolet Impala LS 3.8L No Start, MIL Lamp on VIN: 2G1WH55K01
U1000: Class 2 Communication Malfunction. HI out there I am in need of help from you gm tecs or pcm networking tecs out there this is the kind of challenging we all love to figure out but pull are hair out trying to fix it this car comes to me from another shop that has spent 3 or so weeks on and has ...
May 16, 2009
2002 Nissan Maxima SE 3.5L MIL Lamp on VIN: JN1DA31D62
U1000: Controller Area Network Line Malfunction. oxygen sensors replaced tested old sensor resistance good tested o2 sensor harness 12v present ecm ground control functioning cleaned and installed redundant ground straps pin tested all aplicable circuits at ecm all 4 codes return at once if i clear codes aft...
May 22, 2009
2001 Chevrolet Impala LS 3.8L No Start, MIL Lamp on VIN: 2G1WH55K01
U1000: Class 2 Communication Malfunction. HI out there I am in need of help from you gm tecs or pcm networking tecs out there this is the kind of challenging we all love to figure out but pull are hair out trying to fix it this car comes to me from another shop that has spent 3 or so weeks on and has ...
May 02, 2009
2001 Chevrolet Impala LS 3.8L No Start, MIL Lamp on VIN: 2G1WH55K01
U1000: Class 2 Communication Malfunction. HI out there I am in need of help from you gm tecs or pcm networking tecs out there this is the kind of challenging we all love to figure out but pull are hair out trying to fix it this car comes to me from another shop that has spent 3 or so weeks on and has ...
May 16, 2009
2002 Nissan Maxima SE 3.5L MIL Lamp on VIN: JN1DA31D62
U1000: Controller Area Network Line Malfunction. oxygen sensors replaced tested old sensor resistance good tested o2 sensor harness 12v present ecm ground control functioning cleaned and installed redundant ground straps pin tested all aplicable circuits at ecm all 4 codes return at once if i clear codes aft...
May 22, 2009