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U1016 Diagnostic Trouble Code Discussion for May 2010

Serial Communications Malfunction


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Trouble Ticket Help Requests for DTC U1016
Help Request Posted
2005 Chevrolet Silverado 1500 5.3L Intermittent comm. VIN: 1GCEK19Z35
U1016: Loss of ATC Class 2 Communication. This vehicle came in about a week ago with a communication problem. Customer needs to get state inspection sticker and they said there was no communication with the vehicle. I hooked up our Tech 2 and had no problems at all. Data came through just fine on all ...
May 03, 2010
2004 Chevrolet Tahoe LS 5.3L No Start VIN: 1GNEC13Z04
U1016: Loss of class 2 serial data vcm/pcm. ... my alternator"! Would barely start and stall! Starter may chatter like dead battery or bad switch! No communication pcm/tcm! Found codes in BCM U1000 U1016.and B 2961. Finally got U0107 from pcm and was able to unplug tac module to ...
May 17, 2010
1999 Cadillac DeVille 4.6L Stall VIN: 1G6KD54Y1X
U1016: Lost Communication With Powertrain Control Module. The car runs fine when it is cold, but when the temp gets to N.O.T. it has a tendency to cut off when you come to a stop. The ipc temperature reading is indicating 220F, but direct temperature reading is at water outlet is reading about 215F. We also replaced ...
May 25, 2010
2005 Chevrolet Silverado 1500 5.3L Intermittent comm. VIN: 1GCEK19Z35
U1016: Loss of ATC Class 2 Communication. This vehicle came in about a week ago with a communication problem. Customer needs to get state inspection sticker and they said there was no communication with the vehicle. I hooked up our Tech 2 and had no problems at all. Data came through just fine on all ...
May 03, 2010
2004 Chevrolet Tahoe LS 5.3L No Start VIN: 1GNEC13Z04
U1016: Loss of class 2 serial data vcm/pcm. ... my alternator"! Would barely start and stall! Starter may chatter like dead battery or bad switch! No communication pcm/tcm! Found codes in BCM U1000 U1016.and B 2961. Finally got U0107 from pcm and was able to unplug tac module to ...
May 17, 2010
1999 Cadillac DeVille 4.6L Stall VIN: 1G6KD54Y1X
U1016: Lost Communication With Powertrain Control Module. The car runs fine when it is cold, but when the temp gets to N.O.T. it has a tendency to cut off when you come to a stop. The ipc temperature reading is indicating 220F, but direct temperature reading is at water outlet is reading about 215F. We also replaced ...
May 25, 2010