AutoCodes – GMC – U2165 GMC

U2165 GMC Code - Lost Communication With Driver Door Switch

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Driver Door Switch (DDS), Driver Door Switch harness is open or shorted, Driver Door Switch 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: U2165 GMC indicates Lost Communication With Driver Door Switch.
Common causes: Common causes include Faulty Driver Door Switch (DDS), Driver Door Switch harness is open or shorted, Driver Door Switch 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 501

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 U2165 GMC 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 U2165 GMC - Lost Communication With Driver Door Switch - AutoCodes.com — U2165 GMC Code - Lost Communication With Driver Door Switch

What does this mean?

What are the Possible Causes of the DTC U2165 GMC?

Faulty Driver Door Switch (DDS)
Driver Door Switch harness is open or shorted
Driver Door Switch circuit poor electrical connection

How to Fix the DTC U2165 GMC?

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 U2165 GMC 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 U2165 GMC Code

1. What are the common symptoms of OBDII code U2165 GMC (Lost Communication With Driver Door Switch)?

The common symptoms include power door locks not functioning properly, interior lights not turning on/off as expected, and warning lights on the dashboard related to the driver door.

2. What are some possible causes of OBDII code U2165 GMC?

Possible causes of this code include a faulty driver door switch, damaged wiring or connectors in the door circuit, a malfunctioning body control module, or a communication network issue.

3. How can I diagnose the issue related to U2165 GMC code?

To diagnose the issue, you can use a scan tool to retrieve the specific codes, inspect the wiring and connectors in the driver door circuit, check the driver door switch for proper functionality, and perform a communication network test.

4. Can I continue driving my vehicle with the U2165 GMC code?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent any inconvenience related to door functions or potential electrical problems.

5. How can I repair OBDII code U2165 GMC?

Repair options include repairing or replacing the driver door switch, repairing damaged wiring or connectors, reprogramming the body control module, or addressing any communication network issues.

6. Is it possible to reset the U2165 GMC code without repairing the issue?

While you can clear the code using a scan tool, it is not recommended to simply reset it without addressing the underlying problem, as it may lead to recurring issues in the future.

7. Can extreme weather conditions cause the U2165 GMC code to appear?

Yes, extreme weather conditions such as heavy rain or extreme cold can potentially cause electrical issues leading to the U2165 code due to moisture or temperature-related problems affecting the door switch or wiring.

8. How long does it typically take to repair the U2165 GMC code?

The repair time can vary depending on the exact cause of the issue and the complexity of the repair needed. It could range from a simple switch replacement taking a few hours to more extensive wiring repairs taking longer.

9. Are there any preventive measures to avoid encountering the U2165 GMC code in the future?

Regularly inspecting and maintaining the door switches, keeping the door circuit clean and free of debris, and addressing any electrical issues promptly can help prevent the occurrence of the U2165 code.

10. Should I seek professional help to repair the U2165 GMC code?

If you are not familiar with automotive electrical systems or diagnostic procedures, it is recommended to seek professional help to accurately diagnose and repair the U2165 code to ensure the issue is resolved correctly.