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U019B Ford Code - Lost Communication With Battery Charger Control Module

Quick Answer

The U019B Ford diagnostic trouble code (DTC) indicates that the vehicle has lost communication with the Battery Charger Control Module. Common causes include Wiring or Connection Issues: Loose or damaged wiring connections between the Battery Charger Control Module and other components can disrupt communication, Faulty Battery Charger Control Module: The module itself may be malfunctioning and not able to communicate properly, Software Glitches: Software issues within the module or the vehicle's network can cause communication problems. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U019B Ford indicates Lost Communication With Battery Charger Control Module.
Common causes
Common causes include Wiring or Connection Issues: Loose or damaged wiring connections between the Battery Charger Control Module and other components can disrupt communication, Faulty Battery Charger Control Module: The module itself may be malfunctioning and not able to communicate properly, Software Glitches: Software issues within the module or the vehicle's network can cause communication problems.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code U019B Ford Description

The U019B Ford diagnostic trouble code (DTC) indicates that the vehicle has lost communication with the Battery Charger Control Module. The Battery Charger Control Module is responsible for managing the charging system in the vehicle, ensuring that the battery is charged properly and efficiently. When communication with this module is lost, it can lead to various issues with the charging system, potentially causing the battery to not charge correctly or even fail. This can impact the overall performance of the vehicle, as the battery is essential for starting the engine and powering various electrical components.

OBDII Code U019B Ford - Lost Communication With Battery Charger Control Module
U019B Ford Code - Lost Communication With Battery Charger Control Module

Common Causes of U019B Ford

  1. Wiring or Connection Issues: Loose or damaged wiring connections between the Battery Charger Control Module and other components can disrupt communication.
  2. Faulty Battery Charger Control Module: The module itself may be malfunctioning and not able to communicate properly.
  3. Software Glitches: Software issues within the module or the vehicle's network can cause communication problems.
  4. Communication Network Malfunction: Issues with the vehicle's communication network can prevent proper data transmission to the Battery Charger Control Module.

Symptoms of U019B Ford

  1. Check Engine Light: The check engine light may illuminate on the dashboard due to the communication loss with the Battery Charger Control Module.
  2. Battery Warning Light: The battery warning light may come on, indicating a potential issue with the charging system.
  3. Erratic Charging: The battery may not charge properly, leading to erratic voltage readings or a drained battery.
  4. Electrical Issues: Electrical components in the vehicle may not function correctly, such as power windows, lights, or the radio.

How to Fix U019B Ford

  1. Diagnostic Scan: Perform a diagnostic scan to retrieve the specific DTC and identify the communication issue with the Battery Charger Control Module.
  2. Check Wiring: Inspect the wiring and connections related to the Battery Charger Control Module for any damage or loose connections.
  3. Test Battery Charger Control Module: Test the Battery Charger Control Module to determine if it is functioning correctly or needs to be replaced.
  4. Software Update: If software glitches are the cause, update the software in the module or the vehicle's network to resolve communication issues.
  5. Replace Module: If the Battery Charger Control Module is found to be faulty, replace it with a new one to restore proper communication and charging functionality.

Cost to Fix U019B Ford

The cost estimate for repairing a lost communication issue with the Battery Charger Control Module can vary depending on the specific cause of the problem and the necessary repairs. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is essential to note that diagnostic time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to check with local repair shops for a more accurate estimate based on your specific vehicle and location.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U019B Ford Code

1. What are the common symptoms of OBDII code U019B Ford?

- Common symptoms include the battery not charging properly, warning lights on the dashboard, and issues with the electrical system.

2. What can cause the OBDII code U019B Ford to appear?

- This code usually appears when there is a communication problem between the vehicle's onboard computer and the battery charger control module.

3. How serious is the U019B Ford code?

- The U019B code is considered moderately serious as it can affect the charging system of the vehicle, leading to potential battery drain or other electrical issues.

4. How can I diagnose the U019B Ford code?

- Diagnosing this code typically involves checking the wiring and connections between the onboard computer and the battery charger control module, as well as testing the components for any faults.

5. What are some possible repair tips for the U019B Ford code?

- Repair tips may include checking and repairing any damaged wiring, ensuring proper connections, and potentially replacing the battery charger control module if necessary.

6. Can I drive my vehicle with the U019B Ford code?

- It is generally not recommended to drive your vehicle with the U019B code present, as it can lead to issues with the charging system and potentially leave you stranded due to a drained battery.

7. How much does it cost to fix the U019B Ford code?

- The cost of fixing the U019B code can vary depending on the underlying issue, but it may involve expenses for parts and labor, which could range from a few hundred to a few thousand dollars.

8. Is it possible to reset the U019B Ford code without repairs?

- While you can try clearing the code using an OBDII scanner, it is important to address the root cause of the issue to prevent it from recurring.

9. Can a DIY enthusiast fix the U019B Ford code?

- DIY enthusiasts with the necessary skills and tools may be able to diagnose and repair the U019B code, but it is recommended to seek professional help if unsure about the process.

10. How can I prevent the U019B Ford code from reoccurring?

- To prevent the U019B code from reoccurring, regular maintenance checks, ensuring proper wiring connections, and addressing any underlying electrical issues promptly are essential.

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