What is Control Module communication Bus A Off?

Diagnostic 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.

Where is the trouble code for u0073 control module?

U0073 – Control module – data bus Off Trouble Code Fault Location U0073 Control module – data bus Off

What does u0073 stand for on a CANbus?

Usually, this code is triggered when communication is lost intermittently or fully between your vehicle’s control modules. U0073 is a communication system diagnostic code related to your CANbus. This code can register in a variety of modules, including the PCM, TCM, anti-lock braking system (ABS), or body control module (BCM).

What to do if DTC u0073 is present?

If DTC U0073 is present, check which codes, if any, are also present. This can help indicate a starting point for testing. If there is a related TCM loss of communication code, begin testing at the TCM. The same goes for ABS, BCM, and other modules with codes present alongside DTC U0073.

What does u0073 stand for in car diagnostics?

It is usually best to leave the job to trusted professionals with the tools to isolate the concern and repair it. Again, U0073 is a generic trouble code. However, it is important to note that the diagnostics and repair procedures may be different depending on your vehicle’s make and model.

What does the control module communication bus u0073 mean?

What does code U0073 mean? Code U0073 stands for Control Module Communication Bus ‘A’ Off. The computers in modern vehicles (referred to as modules) communicate with one another over a data bus. This bus is called the controller area network (CAN). CAN is a two-wire bus, consisting of CAN High and CAN low.

What does code u0073-obd II stand for?

U0073 – OBD II Code: Control Module Communication Bus ‘A’ Off What does code U0073 mean? Code U0073 stands for Control Module Communication Bus ‘A’ Off. The computers in modern vehicles (referred to as modules) communicate with one another over a data bus.

What are the common causes of code u0073?

The code, U0073, can register in one or more modules: powertrain control module (PCM), transmission control module (TCM), anti-lock brake (ABS) module, or body control module (BCM) in various locations. Typically, the code sets in the module that experienced a loss of communication. What are the common causes of code U0073?