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U1000 Diagnostic Trouble Code Discussion for April 2008

Class 2 Communication Malfunction


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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2000 Saturn SL2 1.9L No Start VIN: 1G8ZK5272Y
U1000: Class 2 Data Link Malfunction - ID Not Learned. ... guage innop, Security light innop. Codes U1000, U1096, P1626, P1599. No communication with BCM. Diagnose faulty BCM. Install used BCM, fuel guage works, security lamp on, and have comm. with BCM. Now vehicle starts, stalls P1631 incorrect password to PCM. ...
April 29, 2008
2000 Saturn SL2 1.9L No Start VIN: 1G8ZK5272Y
U1000: Class 2 Data Link Malfunction - ID Not Learned. ... guage innop, Security light innop. Codes U1000, U1096, P1626, P1599. No communication with BCM. Diagnose faulty BCM. Install used BCM, fuel guage works, security lamp on, and have comm. with BCM. Now vehicle starts, stalls P1631 incorrect password to PCM. ...
April 29, 2008