U1000 Diagnostic Trouble Code Discussion for June 2004
Class 2 Communication Malfunction
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Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC U1000
| Help Request | Posted | |
| 2002 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNDT13552 U1000: Communication problem between modules. Heres the story.First vehicle came in with no tranny shifting(in default).Pulled codes found 5.Checked ATN Historys found common ignition switch problem. So I replaced switch and now codes are gone but now will not turn over or start And has no codes in ecm bu... |
June 08, 2004 |
