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U1000 Diagnostic Trouble Code Discussion for June 2011

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2003 Saturn L200 2.2L No Start, Cuts out, erratic guage readin VIN: 1G8JU54F43
U1000: Class 2 Data Link Malfunction - ID Not Learned. ... This one is interesting. Vehicle problem became noticible when speedometer stopped working (intermitant condition). Shortly after, vehicle had intermitant start-up problem (ultimately starting). Wrench light would illuminate at that time. Car was brought t...
June 07, 2011
2005 Nissan Xterra SE 4.0L No Start, MIL Lamp on VIN: 5N1AN08W75
U1000: Controller Area Network Line Malfunction. ... is illuminated while it is in 2WD, check engine light comes on as well, shuts off vehicle now no action from starter, no power to part. Has code U1000 stored for Can Comm circuit fault. Pulled up a TSB for that and followed through what had to be one namel...
June 26, 2011