Engine-Codes.com
Engine-Codes – Generic – U0199

U0199 Code - Lost Communication With Door Control Module 'A'

Quick Answer

The U0199 diagnostic trouble code indicates that the vehicle has lost communication with the Door Control Module 'A'. Common causes include Faulty wiring or connectors, Defective Door Control Module, Corrosion in the wiring harness. 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
U0199 indicates Lost Communication With Door Control Module 'A'.
Common causes
Common causes include Faulty wiring or connectors, Defective Door Control Module, Corrosion in the wiring harness.
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 Aug 19, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U0199 Description

The U0199 diagnostic trouble code indicates that the vehicle has lost communication with the Door Control Module 'A'. The Door Control Module is responsible for controlling various functions related to the doors, such as power windows, door locks, and interior lights. When communication is lost with this module, it can lead to malfunctions in these systems, potentially affecting the overall convenience and safety of the vehicle.

OBDII Code U0199 - Lost Communication With Door Control Module 'A'
U0199 Code - Lost Communication With Door Control Module 'A'

Common Causes of U0199

  1. Faulty wiring or connectors
  2. Defective Door Control Module
  3. Corrosion in the wiring harness
  4. Water intrusion in the door panel
  5. Software or programming issues

Symptoms of U0199

  1. Power windows not working
  2. Door locks not functioning properly
  3. Interior lights not turning on/off
  4. Alarm system issues
  5. Warning lights on the dashboard related to door systems

How to Fix U0199

  1. Perform a diagnostic scan to confirm the U0199 code and identify the specific cause of the communication loss.
  2. Inspect the wiring harness and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Check the Door Control Module for faults and replace if needed.
  4. Address any water intrusion in the door panel by sealing any entry points.
  5. Update software or reprogram the module if required.

Cost to Fix U0199

The cost of repairing the U0199 code can vary depending on the specific cause of the issue and the labor rates of the auto repair shop. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. It is recommended to contact local auto repair shops for more accurate estimates based on your vehicle make and model.

Need more information about the U0199 code?

Need more information on how to fix the U0199 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0199 code diagnosed by a professional: Find a repair shop in your area

Code U0199 Information for Specific Makes

  • U0199 Acura — Immobilizer-Keyless Control Unit Lost Communication With Door Multiplex Control Unit
  • U0199 Chrysler — Lost Communication With Door Control Module
  • U0199 Dodge — Lost Communication With Door Control Module
  • U0199 Fiat — Lost Communication With Door Control Module
  • U0199 Ford — Lost Communication With Door Control Module 'A'
  • U0199 Honda — Immobilizer-Keyless Control Unit Lost Communication With Door Multiplex Control Unit
  • U0199 Jeep — Lost Communication With Door Control Module
  • U0199 Lincoln — Lost Communication With Door Control Module 'A'
  • U0199 Mercury — Lost Communication With Door Control Module 'A'
  • U0199 RAM — Lost Communication With Door 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 U0199 Code

1. What are the common symptoms of OBDII code U0199?

When this code is present, you may experience issues such as power door locks not working, windows not functioning properly, interior lights not turning on, or other related problems.

2. What could cause the OBDII code U0199 to appear?

The code U0199 typically indicates a communication problem between the vehicle's main computer and the door control module 'A'. This can be caused by a faulty wiring connection, a defective door control module, or a malfunctioning main computer.

3. How can I diagnose the root cause of OBDII code U0199?

A thorough diagnostic process involving checking the wiring connections, testing the door control module, and inspecting the main computer is usually necessary to pinpoint the exact cause of the communication failure.

4. Can I still drive my vehicle with the U0199 code showing?

While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to prevent further electrical system problems and ensure the proper functioning of your vehicle's door control features.

5. Are there any simple repair tips for resolving code U0199?

Sometimes, simply checking and securing the wiring connections related to the door control module 'A' can help resolve the communication issue. However, if the problem persists, professional diagnosis and repair may be required.

6. Is it safe to attempt repairing the U0199 code myself?

If you have experience working with automotive electrical systems and feel confident in your abilities, you may attempt simple checks like inspecting wiring connections. For complex issues or if you're unsure, it's best to consult a qualified mechanic.

7. Can extreme weather conditions contribute to the U0199 code appearing?

Yes, extreme temperatures or moisture exposure can potentially affect the electrical connections and components related to the door control module, leading to communication problems and triggering the U0199 fault code.

8. Will resetting the OBDII system clear the U0199 code?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the communication failure is not addressed, the code is likely to reappear once the problem is detected again.

9. How much can I expect to pay to repair the U0199 code?

The cost of repairing the U0199 code can vary depending on the exact cause of the communication failure. Simple fixes like securing wiring connections may be inexpensive, while replacing a faulty door control module or main computer can be more costly.

10. Can the U0199 code affect other vehicle systems besides the door controls?

While the primary impact of the U0199 code is on the door control module 'A', communication issues within the vehicle's electrical system can potentially affect other systems and components, leading to additional malfunctions.

Discuss the causes and fixes for U0199 OBDII Code

Submit a New Comment

Code U0199 comments

No comments found for this page.