AutoCodes – Chevrolet – U2164 Chevrolet

U2164 Chevrolet Code - Lost Communication With Right Rear Door Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Right Rear Door Module (RRDM), Right Rear Door Module harness is open or shorted, Right Rear Door Module circuit poor electrical connection. 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 Chevrolet indicates Lost Communication With Right Rear Door Module.
Common causes: Common causes include Faulty Right Rear Door Module (RRDM), Right Rear Door Module harness is open or shorted, Right Rear Door Module circuit poor electrical connection.
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.

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Code Popularity 512

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2164 Chevrolet Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2164 Chevrolet - Lost Communication With Right Rear Door Module - AutoCodes.com — U2164 Chevrolet Code - Lost Communication With Right Rear Door Module

What does this mean?

What are the Possible Causes of the DTC U2164 Chevrolet?

Faulty Right Rear Door Module (RRDM)
Right Rear Door Module harness is open or shorted
Right Rear Door Module circuit poor electrical connection

How to Fix the DTC U2164 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U2164 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 Chevrolet Code

1. What does the OBDII code U2164 mean on a Chevrolet?

The U2164 code indicates a loss of communication with the Right Rear Door Module, meaning the module is not transmitting data to the vehicle's network.

2. What are the common symptoms of the U2164 code?

Symptoms include inoperative power windows, door locks, or interior lights on the right rear door, and possibly a warning light on the dashboard.

3. What causes the U2164 code to appear?

Causes can include a defective Right Rear Door Module, wiring issues like damaged or corroded connectors, or a fault in the vehicle's communication network.

4. Can I still drive my Chevrolet with the U2164 code?

Yes, the vehicle is usually drivable, but certain door functions like locks or windows may not work, which could pose convenience or safety concerns.

5. How do I diagnose the U2164 code?

Diagnosis involves inspecting the module's wiring and connectors for damage, checking for power and ground at the module, and using a scan tool to verify communication.

6. Does clearing the U2164 code fix the issue?

Clearing the code may temporarily reset it, but the underlying issue must be resolved to prevent the code from returning.

7. How much does it cost to fix the U2164 code?

Repair costs vary, but fixing wiring or connector issues typically ranges from $50 to $150, while replacing the door module could cost $200 to $500.

8. Can software updates resolve the U2164 code?

In some cases, a software update for the vehicleâ€™s control modules may resolve communication errors, but this depends on the specific issue.

9. What tools are needed to fix the U2164 code?

Youâ€™ll need a scan tool capable of reading manufacturer-specific codes, a multimeter, and possibly wiring diagrams to troubleshoot the issue.

10. Should I take my car to a mechanic for the U2164 code?

If you're not experienced with electrical diagnostics, itâ€™s best to take your vehicle to a qualified mechanic to properly diagnose and repair the issue.