AutoCodes – Chevrolet – U02A3 2016 Chevrolet Silverado

U02A3 2016 Chevrolet Silverado Code - Lost Communication With Particulate Matter Sensor Module

Quick Answer

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Exhaust Particulate Matter Sensor, Exhaust Particulate Matter Sensor harness is open or shorted, Exhaust Particulate Matter Sensor 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: U02A3 2016 Chevrolet Silverado indicates Lost Communication With Particulate Matter Sensor Module.
Common causes: Common causes include Faulty Exhaust Particulate Matter Sensor, Exhaust Particulate Matter Sensor harness is open or shorted, Exhaust Particulate Matter Sensor 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 350

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 Oct 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U02A3 2016 Chevrolet Silverado Description

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) 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 DTC. The DTC will be set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U02A3 2016 Chevrolet Silverado - Lost Communication With Particulate Matter Sensor Module - AutoCodes.com — U02A3 2016 Chevrolet Silverado Code - Lost Communication With Particulate Matter Sensor Module

What does this mean?

What are the Possible Causes of the DTC U02A3 2016 Chevrolet Silverado?

Faulty Exhaust Particulate Matter Sensor
Exhaust Particulate Matter Sensor harness is open or shorted
Exhaust Particulate Matter Sensor circuit poor electrical connection

How to Fix the DTC U02A3 2016 Chevrolet Silverado?

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 U02A3 2016 Chevrolet Silverado 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.

Need more information about the U02A3 2016 Chevrolet Silverado code?

Need more information on how to fix the U02A3 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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Get the U02A3 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 U02A3 2016 Chevrolet Silverado Code

1. What are the common symptoms of the U02A3 OBDII code in a 2016 Chevrolet Silverado?

- Common symptoms include poor fuel efficiency, rough idling, decreased engine performance, and the illumination of the check engine light.

2. What does the U02A3 OBDII code "Lost Communication With Particulate Matter Sensor Module" indicate in a 2016 Chevrolet Silverado?

- This code indicates a communication issue between the vehicle's engine control module (ECM) and the particulate matter sensor module.

3. What are the possible causes of the U02A3 OBDII code in a 2016 Chevrolet Silverado?

- Possible causes include a faulty particulate matter sensor module, damaged wiring or connectors, a software glitch, or issues with the ECM.

4. How can I diagnose the U02A3 code in my 2016 Chevrolet Silverado?

- Diagnosing the U02A3 code typically involves using a diagnostic scanner to read the code, checking the wiring and connectors for any visible damage, and performing communication tests with the sensor module.

5. Can I drive my 2016 Chevrolet Silverado with the U02A3 code present?

- It is not recommended to drive the vehicle with the U02A3 code present, as it can lead to potential performance issues and further damage if left unresolved.

6. How can I repair the U02A3 code in my 2016 Chevrolet Silverado?

- Repairing the U02A3 code may involve replacing the particulate matter sensor module, repairing any damaged wiring or connectors, updating software if necessary, or resetting the ECM.

7. Is the U02A3 code in a 2016 Chevrolet Silverado a common issue?

- While not as common as some other OBDII codes, the U02A3 code can occur in vehicles with particulate matter sensor modules, especially in models like the 2016 Chevrolet Silverado.

8. Are there any DIY fixes for the U02A3 code in a 2016 Chevrolet Silverado?

- DIY fixes for the U02A3 code may include checking and cleaning the connectors, ensuring proper wiring connections, and performing a battery reset to clear the code temporarily.

9. Will the U02A3 code reset itself in a 2016 Chevrolet Silverado?

- The U02A3 code may reset itself if the underlying issue is intermittent, but it is recommended to diagnose and repair the problem to prevent further occurrences.

10. How much does it cost to fix the U02A3 code in a 2016 Chevrolet Silverado?

- The cost of fixing the U02A3 code can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $100 to $500 or more.