AutoCodes – Chevrolet – U2165 Chevrolet

U2165 Chevrolet 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 Chevrolet 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 722

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

What does this mean?

What are the Possible Causes of the DTC U2165 Chevrolet?

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 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 U2165 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 U2165 Chevrolet Code

What does the OBDII code U2165 mean for a Chevrolet vehicle?

U2165 indicates a lost communication with the driver door switch, suggesting that the vehicle's onboard computer cannot receive data from the switch that controls various functions in the driver's door.

What are common symptoms associated with the U2165 code?

Common symptoms include non-functioning power windows, door locks, or mirror adjustments on the driver's side, as well as issues with the vehicle's interior lighting and warning indicators.

What could cause the U2165 code to trigger?

Causes may include a faulty driver door switch, damaged wiring or connectors, a malfunctioning body control module (BCM), or issues with the central communication network of the vehicle.

How can I diagnose the U2165 code?

Begin by checking for any visible damage to the door switch, wiring, and connectors. Use a multimeter to test the switch for proper operation, and scan for any additional trouble codes that may provide more context.

What repairs are typically needed to fix the U2165 code?

Repairs might involve replacing the driver door switch, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the BCM if it is found to be faulty.

Can I clear the U2165 code myself, and will it come back?

You can clear the code using an OBDII scanner, but if the underlying issue is not fixed, the code will likely return after a short period of driving.

Are there any temporary solutions to consider while fixing the U2165 code?

While waiting for repairs, you may be able to manually operate the door locks or windows, but be cautious as this may not be safe or practical for long-term use.

Is the U2165 code specific to Chevrolet vehicles?

While U2165 is a standard OBDII code, its implications may vary by manufacturer. It is commonly associated with Chevrolet vehicles, but similar issues can occur in other brands.

Should I seek professional help if I encounter the U2165 code?

If you're not experienced with automotive electrical systems or cannot identify the issue, it's advisable to consult a professional mechanic to ensure proper diagnosis and repair.