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Engine-Codes – GMC – U2164 GMC

U2164 GMC Code - Lost Communication With Right Rear Door Module

Quick Answer

The U2164 GMC code indicates that there is a communication problem with the right rear door module in the vehicle. Common causes include Loose or damaged wiring connections to the right rear door module, A faulty right rear door module, Malfunctioning body control module (BCM). 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
U2164 GMC indicates Lost Communication With Right Rear Door Module.
Common causes
Common causes include Loose or damaged wiring connections to the right rear door module, A faulty right rear door module, Malfunctioning body control module (BCM).
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 13, 2024
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Code U2164 GMC Description

The U2164 GMC code indicates that there is a communication problem with the right rear door module in the vehicle. This module is responsible for controlling various functions related to the right rear door, such as power windows, door locks, and interior lights. When communication is lost with this module, it can lead to issues with these functions not working properly or at all.

OBDII Code U2164 GMC - Lost Communication With Right Rear Door Module
U2164 GMC Code - Lost Communication With Right Rear Door Module

Common Causes of U2164 GMC

  1. Loose or damaged wiring connections to the right rear door module.
  2. A faulty right rear door module.
  3. Malfunctioning body control module (BCM).
  4. Communication network issues within the vehicle.
  5. Water damage or corrosion affecting the right rear door module.

Symptoms of U2164 GMC

  1. Inability to operate the power windows or door locks on the right rear door.
  2. Interior lights not turning on when the right rear door is opened.
  3. Warning light on the dashboard indicating a communication problem with the right rear door module.
  4. Unusual sounds coming from the right rear door when attempting to use the power windows or door locks.

How to Fix U2164 GMC

  1. Begin by inspecting the wiring connections to the right rear door module for any signs of damage or corrosion. Repair or replace any faulty wiring as needed.
  2. Test the right rear door module to determine if it is functioning properly. Replace the module if it is found to be faulty.
  3. Check the body control module (BCM) for any malfunctions or communication errors related to the right rear door module. Repair or replace the BCM if necessary.
  4. Diagnose and address any communication network issues within the vehicle that may be causing the U2164 code.
  5. Clear the diagnostic trouble codes from the vehicle's system and test the right rear door functions to ensure they are operating correctly.

Cost to Fix U2164 GMC

The typical repair costs for addressing a lost communication issue with the right rear door module can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may charge less. It is recommended to check local rates for a more accurate estimate of the repair costs.

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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 U2164 GMC Code

1. What are the common symptoms of OBDII code U2164 GMC "Lost Communication With Right Rear Door Module"?

- Common symptoms include non-functional power windows, door locks, and interior lights on the right rear door.

2. What are the possible causes of OBDII code U2164 GMC?

- The code U2164 can be caused by a faulty right rear door module, damaged wiring harness, loose connections, or a malfunctioning body control module.

3. How can I diagnose the issue related to OBDII code U2164 GMC?

- To diagnose the issue, you can start by checking the wiring and connections related to the right rear door module, testing the module itself, and scanning the vehicle for additional trouble codes.

4. Can I still drive my vehicle with the U2164 GMC trouble code?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid any inconvenience or safety concerns.

5. How can I repair OBDII code U2164 GMC "Lost Communication With Right Rear Door Module"?

- Repairing this code may involve replacing the right rear door module, repairing damaged wiring, securing loose connections, or reprogramming the body control module if necessary.

6. Will resetting the trouble codes make the U2164 GMC code disappear permanently?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue causing the communication loss with the right rear door module is not fixed, the code is likely to reappear.

7. Is it possible for a DIY enthusiast to fix OBDII code U2164 GMC at home?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to address this code at home by following repair guides and using diagnostic tools.

8. Can extreme weather conditions cause the U2164 GMC trouble code to appear?

- Extreme weather conditions can potentially affect the electrical components related to the right rear door module, leading to communication issues and triggering the U2164 trouble code.

9. How long does it typically take to repair OBDII code U2164 GMC?

- The repair time for this code can vary depending on the exact cause of the issue and the complexity of the repair needed, but it can usually be resolved within a few hours to a day.

10. Is it necessary to visit a dealership for OBDII code U2164 GMC repairs, or can independent mechanics handle it?

- Independent mechanics with experience in diagnosing and repairing electrical issues in vehicles should be able to handle the repair for OBDII code U2164 GMC, potentially offering a more cost-effective solution than dealership services.

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