Helpful Automotive Resources
September 16, 2020 U0073 Code: Control Module Communication Bus “A” OffDiagnostic Trouble Code (DTC) U0073 stands for Control Module Communication Bus “A” Off. OBD code U0073 is a communication system DTC that applies to most vehicles. Usually, this code is triggered when communication is lost intermittently or fully between your vehicle’s control modules.
September 16, 2020 U0101 Code: Lost Communication with TCMDiagnostic Trouble Code (DTC) U0101 stands for Lost Communication with TCM. This code appears when the TCM is not receiving nor transmitting messages on the CAN bus.
September 16, 2020 P0734 Code: Gear 4 Incorrect RatioThis error code often indicates that your transmission is slipping. It usually happens when your vehicle is shifting to 4th gear or even when driving at steady speeds
September 16, 2020 P0733 Code: Gear 3 Incorrect RatioP0733 shows up in vehicles equipped with an automatic transmission when there is trouble shifting into 3rd gear, or while you’re driving in 3rd gear. To increase vehicle speed while maximizing the power output from the engine, computer-controlled automatic transmissions use multiple gear ratios.