Engine-CodesGeneric – U019F

U019F Code - Lost Communication With Engine Coolant Pump Control Module

Quick Answer

The diagnostic trouble code U019F indicates that the vehicle's onboard computer has lost communication with the Engine Coolant Pump Control Module. Common causes include Faulty Engine Coolant Pump Control Module, Damaged wiring or connectors, Malfunctioning engine coolant pump. 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
U019F indicates Lost Communication With Engine Coolant Pump Control Module.
Common causes
Common causes include Faulty Engine Coolant Pump Control Module, Damaged wiring or connectors, Malfunctioning engine coolant pump.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code U019F Description

The diagnostic trouble code U019F indicates that the vehicle's onboard computer has lost communication with the Engine Coolant Pump Control Module. This module is responsible for controlling the operation of the engine coolant pump, which plays a crucial role in maintaining the engine's optimal operating temperature.

OBDII Code U019F - Lost Communication With Engine Coolant Pump Control Module
U019F Code - Lost Communication With Engine Coolant Pump Control Module

Common Causes of U019F

  1. Faulty Engine Coolant Pump Control Module
  2. Damaged wiring or connectors
  3. Malfunctioning engine coolant pump
  4. Communication error within the vehicle's network system

Symptoms of U019F

  1. Engine overheating
  2. Decreased fuel efficiency
  3. Engine running rough or stalling
  4. Check engine light illuminated
  5. Loss of power

How to Fix U019F

  1. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
  2. Test the Engine Coolant Pump Control Module for proper functioning. Replace if faulty.
  3. Check the engine coolant pump for proper operation. Replace if necessary.
  4. Diagnose and repair any communication errors within the vehicle's network system.

Cost to Fix U019F

The typical repair costs for addressing a lost communication issue with the Engine Coolant Pump Control Module can range from $200 to $500, including parts and labor. However, it's essential to keep in mind that the specific diagnosis time and labor rates at auto repair shops can vary based on various factors. It's advisable to consult with local repair shops to get a more accurate estimate for your specific situation.

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Code U019F Information for Specific Makes

  • U019F Ford — Lost Communication With Engine Coolant Pump Control Module
  • U019F Lincoln — Lost Communication With Engine Coolant Pump Control Module
  • U019F Mercury — Lost Communication With Engine Coolant Pump Control Module
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 U019F Code

1. What are the common symptoms of OBDII code U019F?

- Common symptoms may include the engine overheating, coolant pump not functioning properly, and warning lights illuminated on the dashboard.

2. What can cause the OBDII code U019F to trigger?

- The code can be triggered by issues such as a faulty engine coolant pump control module, damaged wiring or connectors, or a communication breakdown between the module and the vehicle's computer system.

3. How can I diagnose the cause of the U019F code?

- A thorough diagnostic scan using an OBDII scanner can help pinpoint the exact cause of the code. Checking the wiring, connectors, and the coolant pump control module itself for any visible damage is also recommended.

4. What are some possible repair tips for resolving the U019F code?

- Repair tips may include repairing or replacing damaged wiring and connectors, testing and potentially replacing the engine coolant pump control module, and ensuring all connections are secure and free of corrosion.

5. Can I continue driving with the U019F code present?

- It is not recommended to continue driving with the U019F code present, as it can lead to engine overheating and potential damage. It is best to address the issue promptly to prevent further complications.

6. How serious is the U019F code?

- The U019F code is considered serious as it indicates a loss of communication with the engine coolant pump control module, which can impact the proper functioning of the cooling system and potentially lead to engine damage if not addressed.

7. Is it possible to reset the U019F code without fixing the underlying issue?

- While it is possible to clear the code using an OBDII scanner, it is not recommended to do so without addressing the underlying issue causing the code. Resetting the code without fixing the problem will likely result in it reoccurring.

8. Are there any common mistakes to avoid when dealing with the U019F code?

- Common mistakes to avoid include neglecting to check the wiring and connectors for damage, assuming the coolant pump is the only issue, and failing to address the communication breakdown between the control module and the vehicle's computer system.

9. How much does it typically cost to repair the U019F code?

- The cost of repairing the U019F code can vary depending on the underlying issue and whether any parts need to be replaced. Costs may include labor fees, replacement parts, and diagnostic testing.

10. Can I prevent the U019F code from occurring in the future?

- Regular maintenance, such as checking the coolant pump control module, inspecting wiring and connectors for damage, and addressing any warning signs promptly, can help prevent the U019F code from occurring in the future.

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