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U1000 Diagnostic Trouble Code Discussion for July 2005

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2000 Saturn LS2 3.0L No Start VIN: 1G8JW52R4Y
U1000: Class 2 Data Link Malfunction - ID Not Learned. Hi everyone, This saturn LS2 is in for a no start,again, cranks over fine, no communication with ECU, but have communication with TCM, and BCM and can control instrument cluster through scan tool. There are 22 trans codes, three of them are communication U cod...
July 26, 2005