× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

U0073 Diagnostic Trouble Code Discussion for October 2018

Control Module Communication Bus Off


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC U0073
Help Request Posted
2007 Pontiac G6 3.5L No Start, Hesitation, Surge, MIL Lamp on VIN: 1G2ZG58N67
U0073: Controller Area Network Bus Communication. ... code u0073, the IPC gauges go on and off, "ERROR" reads on the DIC and the security light comes on. Very randomly, no start, no crank, no comm with any modules. Sometimes comm with only TCM, BCM, and ECM Tested the battery and charging syste...
October 02, 2018
2007 Pontiac G6 3.5L No Start, Hesitation, Surge, MIL Lamp on VIN: 1G2ZG58N67
U0073: Controller Area Network Bus Communication Off. ... code u0073, the IPC gauges go on and off, "ERROR" reads on the DIC and the security light comes on. Very randomly, no start, no crank, no comm with any modules. Sometimes comm with only TCM, BCM, and ECM Tested the battery and charging syste...
October 04, 2018