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U2103 Diagnostic Trouble Code Discussion for February 2010

Fewer Controllers On Than Programmed


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Trouble Ticket Help Requests for DTC U2103
Help Request Posted
2005 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AL12F65
U2103: Fewer controllers on bus than programmed. Looking for help on wifes car. Only happened twice, on Christmas eve, and again today. Problems go away after sitting a few minutes. When driving for extended period of time, about 40 minutes. CEL came on, Traction light came on, power steering message came up...
February 17, 2010
2005 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AL12F65
U2103: Fewer controllers on bus than programmed. Looking for help on wifes car. Only happened twice, on Christmas eve, and again today. Problems go away after sitting a few minutes. When driving for extended period of time, about 40 minutes. CEL came on, Traction light came on, power steering message came up...
February 17, 2010