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U1000 Diagnostic Trouble Code Discussion for May 2011

Class 2 Communication Malfunction


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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2001 Chevrolet Silverado 3500 6.6L No Start, no injector pulse VIN: 1GDJK34171
U1000: Class 2 Communication Malfunction. ... weed killer put in tank by accident, ran until it quit, tank topped off with diesel fuel, didn't start, was towed to a shop elsewhere that told them motor was shot after fuel system was cleaned out. Customer installed used motor, had a hard time getting it...
May 16, 2011
2001 Chevrolet Silverado 3500 6.6L No Start, no injector pulse VIN: 1GDJK34171
U1000: Class 2 Communication Malfunction. ... weed killer put in tank by accident, ran until it quit, tank topped off with diesel fuel, didn't start, was towed to a shop elsewhere that told them motor was shot after fuel system was cleaned out. Customer installed used motor, had a hard time getting it...
May 18, 2011
2005 GMC Savana 3500 6.0L Hesitation, Surge, Cuts out VIN: 1GDUJG31U9
U1000: clss 2 data link fault. thanks in advance to any one that can help. i have this cube truck that is driving me crazy. vehicle came into the shop 3 weeks ago with abs light coming on when turning. and very intermitant hesitation on accel.found corroded connection to LF speed sensor. ve...
May 19, 2011
2004 Chevrolet Impala 3.4L No Start, Poor Idle Quality, Cuts out, Stall VIN: 2G1WF52E74
U1000: Class 2 Communication Malfunction. This was brought in with an intermittent No start.Will crank,has great fuel pressure,and has spark.When in a no start condition while cranking the check engine light flickers also flickers when not cranking when in the no start mode.Also there is no data strea...
May 26, 2011
2002 Chevrolet Venture 3.4L No Start VIN: 1GNDU03E32
U1000: Class 2 Communication Malfunction. ... don't have much experience on Passkey III. I'd appreciate any help possible. Customer went to start van after sitting for a couple of days. He found that the battery was totally dead. He tried a battery charger on 100amp boost. Still wouldn't start, so he ...
May 31, 2011
2001 Chevrolet Silverado 3500 6.6L No Start, no injector pulse VIN: 1GDJK34171
U1000: Class 2 Communication Malfunction. ... weed killer put in tank by accident, ran until it quit, tank topped off with diesel fuel, didn't start, was towed to a shop elsewhere that told them motor was shot after fuel system was cleaned out. Customer installed used motor, had a hard time getting it...
May 16, 2011
2001 Chevrolet Silverado 3500 6.6L No Start, no injector pulse VIN: 1GDJK34171
U1000: Class 2 Communication Malfunction. ... weed killer put in tank by accident, ran until it quit, tank topped off with diesel fuel, didn't start, was towed to a shop elsewhere that told them motor was shot after fuel system was cleaned out. Customer installed used motor, had a hard time getting it...
May 18, 2011
2005 GMC Savana 3500 6.0L Hesitation, Surge, Cuts out VIN: 1GDUJG31U9
U1000: clss 2 data link fault. thanks in advance to any one that can help. i have this cube truck that is driving me crazy. vehicle came into the shop 3 weeks ago with abs light coming on when turning. and very intermitant hesitation on accel.found corroded connection to LF speed sensor. ve...
May 19, 2011
2004 Chevrolet Impala 3.4L No Start, Poor Idle Quality, Cuts out, Stall VIN: 2G1WF52E74
U1000: Class 2 Communication Malfunction. This was brought in with an intermittent No start.Will crank,has great fuel pressure,and has spark.When in a no start condition while cranking the check engine light flickers also flickers when not cranking when in the no start mode.Also there is no data strea...
May 26, 2011
2002 Chevrolet Venture 3.4L No Start VIN: 1GNDU03E32
U1000: Class 2 Communication Malfunction. ... don't have much experience on Passkey III. I'd appreciate any help possible. Customer went to start van after sitting for a couple of days. He found that the battery was totally dead. He tried a battery charger on 100amp boost. Still wouldn't start, so he ...
May 31, 2011