What is code U0073 on Ford Focus?
The Ford Focus error code U0073 is a diagnostic trouble code that indicates a communication issue between the vehicle's electronic control modules. This code can be triggered by a variety of problems, and it's important to diagnose and address the underlying cause to ensure the proper functioning of your vehicle.
What is Code U0073 on a Ford Focus?
The U0073 code on a Ford Focus is a generic powertrain code that indicates a "Control Module Communication Bus Off" issue. This means that one or more of the vehicle's electronic control modules (ECMs) has lost communication with the main communication bus, which is responsible for transmitting data between the various modules.
The U0073 code can be triggered by a range of problems, including:
- Faulty wiring or connectors in the communication bus
- Malfunctioning control modules
- Electrical interference or noise in the system
- Loose or corroded connections
- Software issues or programming errors
When the U0073 code is set, it can cause a range of symptoms, such as the engine running poorly, reduced fuel efficiency, and even the illumination of the check engine light on the dashboard.
Diagnosing and Resolving the U0073 Code
To diagnose and resolve the U0073 code on a Ford Focus, you'll need to use a diagnostic tool to scan the vehicle's computer system and identify the specific cause of the communication issue. This may involve checking for any fault codes, inspecting the wiring and connectors, and testing the various control modules to ensure they are functioning correctly.
Once the underlying cause has been identified, the appropriate repair or replacement of the faulty component(s) can be carried out. This may include replacing a malfunctioning control module, repairing or replacing damaged wiring, or updating the vehicle's software to address any programming issues.
It's important to note that the U0073 code can be a complex issue to diagnose and resolve, and it's recommended to have a qualified automotive technician handle the repair process to ensure the problem is properly addressed and the vehicle is returned to safe and reliable operation.
How to fix Ford code U0073?
Do a quick visual inspection of the CANbus area. Any broken wires or loose connectors can trigger the U0073 code. Replacing or repairing these parts might be the simple solution you need to fixing U0073.
How do I reset my power control module?
Then, you can reset the PCM by pulling the fuse, which typically involves these steps.
- Find the fuse for your PCM. If you're unsure of which fuse to remove, consult the fuse box diagram in the owner's manual or consult online resources.
- Remove the fuse from the box.
- Put it back on after 10 to 20 seconds.
What causes control module failure?
Common Causes of Engine Control Module Failures
Moisture often enters through corroded ECM seals, particularly in older cars (5 to 10 years old). The wiring harness around the electronic fuel solenoid can also corrode, causing a shortage in the ECM. A failing solenoid can exacerbate the issue.
How do I factory reset my power controller?
Hold the program button down for 2 seconds. The center LEDs will slowly flash red, signaling the controller is in program mode. Press and hold the program button for 5 seconds to reset to no function.
Can a bad battery cause a U0073 code?
Diagnosing a U0073 can be difficult and time-consuming. Possible Causes of a U0073 Code: Blown Fuse Issues with Alternator Charging or Battery Wiring Issue Such as Damaged Wires or Poor Connections Faulty Control Module www.backyardmechanic.org By using this information user assumes all risk of use.
Can I drive my car with a bad control module?
No, it is not safe to drive with a faulty engine control module (ECM).
How do I completely reset my controller?
On the back of your controller, you will find a tiny hole – the reset button is inside this hole. Use a small, unfolded paper clip (or something similar) to press and hold the reset button for at least five seconds. Your controller should now have been reset.
How to fix control module bus a off?
Repairing the U0073 Code
- Check the vehicle's battery level.
- Address any other logged Diagnostic Trouble Codes (DTCs).
- Conduct a visual inspection of the CANbus area for damaged wires or loose connectors.
- Check for any relevant Technical Service Bulletins (TSBs) from the manufacturer.
How much does it cost to fix U0073 code?
The cost to repair code U0073 can range between $100 and $1,000. However, the cost can vary based on your car model, the exact cause, the part to be replaced, labor costs, etc. The repair cost can even increase if your car requires the replacement of a complex control module.
What causes a power control module to go bad?
Causes of PCM Failure
These may include natural factors such as corrosion or, more frequently, electrical issues that can disrupt its proper operation. It is crucial to promptly address any potential module problems to ensure the optimal performance and reliability of your vehicle.
