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U1000 Diagnostic Trouble Code Discussion for August 2020

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2001 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK24161
U1000: Class 2 Communication Malfunction. ... and start and die. Scanned for codes and found p1626 anti theft, u1000 class 2 serial codes. At this time all modules were communicating but anti theft was active. We did VTD relearn process with no luck. Started chec...
August 28, 2020
2017 Nissan Pathfinder SV 3.5L No Start, MIL Lamp on VIN: 5N1DR2AM4L
U1000: CAN communication circuit. Vehicle is new 2020 model, was just outfitted For some safety lighting. Vehicle started and ran several times without incident, but will now not start, will only go into ‘key on engine off’. Also, will not shut off from this mode. Vehicle has push-button s...
August 28, 2020