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U0073 Diagnostic Trouble Code Discussion for June 2009

Control Module Communication Bus Off

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Trouble Ticket Help Requests for DTC U0073
Help Request Posted
2006 Chevrolet Impala LT 3.5L No Start, Stall, MIL Lamp on VIN: 2G1WT58K86
U0073: Controller Area Network Bus Communication. Vehicle has intermittent No Start, door locks cycle, dash gauges go to zero and ABS traction control light comes on. The last time this happened vehicle hit a big pot hole and vehicle stalled. The other problems were happening previous to the vehicle hitting t...
June 15, 2009