AutoCodes – Chevrolet – U01A0 2015 Chevrolet Silverado

U01A0 2015 Chevrolet Silverado Code - Lost Communication with Hybrid/EV Battery Interface Control Module 1

Quick Answer

This diagnostic monitors the internal battery communication status between the Hybrid/EV Powertrain Control Module 2 and the Hybrid/EV Battery Interface Control Modules. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control 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: U01A0 2015 Chevrolet Silverado indicates Lost Communication with Hybrid/EV Battery Interface Control Module 1.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control 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 191

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 Jul 21, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U01A0 2015 Chevrolet Silverado Description

This diagnostic monitors the internal battery communication status between the Hybrid/EV Powertrain Control Module 2 and the Hybrid/EV Battery Interface Control Modules. The diagnostic monitors Hybrid/EV Battery Interface Control Modules data availability whenever this private communications bus is active. The communication network between Hybrid/EV Powertrain Control Module 2 and Hybrid/EV Battery Interface Control Modules is in a daisy-chain architecture. Therefore, a break at any point in the communication bus results in a loss of Hybrid/EV Battery Interface Control Modules communication with the Hybrid/EV Powertrain Control Module 2. If any data is received, the diagnostic will report a pass. If no data is received for greater than 4.5 s, the Hybrid/EV Powertrain Control Module 2 will attempt to initiate the Hybrid/EV Battery Interface Control Modules into a communication mode where the Hybrid/EV Battery Interface Control Modules can perform their own internal communication loop back, bypassing the daisy-chain. If this is the first Hybrid/EV Battery Interface Control Module in the daisy-chain that the Hybrid/EV Powertrain Control Module 2 cannot re-establish communication with, this diagnostic will fail. The Diagnostic Trouble Code (DTC) will be set when the Hybrid/EV Powertrain Control Module 2 has not received data from the Hybrid/EV Battery Interface Control Module 1 for more than 4.5 s.

OBDII Code U01A0 2015 Chevrolet Silverado - Lost Communication with Hybrid/EV Battery Interface Control Module 1 - AutoCodes.com — U01A0 2015 Chevrolet Silverado Code - Lost Communication with Hybrid/EV Battery Interface Control Module 1

What does this mean?

What are the Possible Causes of the DTC U01A0 2015 Chevrolet Silverado?

Faulty Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Interface Control Module harness is open or shorted
Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC U01A0 2015 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 U01A0 2015 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 U01A0 2015 Chevrolet Silverado code?

Need more information on how to fix the U01A0 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U01A0 2015 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 U01A0 2015 Chevrolet Silverado Code

1. What are common symptoms of OBDII code U01A0 in a 2015 Chevrolet Silverado?

- Common symptoms include the check engine light illuminating, loss of power, issues with hybrid/EV battery performance, and potential drivability issues.

2. What does the OBDII code U01A0 indicating "Lost Communication with Hybrid/EV Battery Interface Control Module 1" mean?

- This code indicates a communication problem between the vehicle's onboard diagnostic system and the Hybrid/EV Battery Interface Control Module 1.

3. What are possible causes of OBDII code U01A0 in a 2015 Chevrolet Silverado?

- Possible causes include a faulty Hybrid/EV Battery Interface Control Module 1, wiring issues, damaged connectors, or a problem with the vehicle's diagnostic system.

4. How can I diagnose the issue triggering the U01A0 code in my Chevrolet Silverado?

- Diagnosing the issue may involve checking the wiring harness and connectors for damage, testing the Hybrid/EV Battery Interface Control Module 1 for functionality, and using a scan tool to communicate with the module.

5. Can I continue driving my 2015 Chevrolet Silverado with the U01A0 code present?

- It is not recommended to drive the vehicle with the U01A0 code active as it can lead to more severe issues and potential safety concerns.

6. How can I repair the "Lost Communication with Hybrid/EV Battery Interface Control Module 1" issue in my 2015 Chevrolet Silverado?

- Repair steps may include inspecting and repairing wiring connections, replacing the Hybrid/EV Battery Interface Control Module 1 if necessary, and clearing the error codes using a diagnostic tool.

7. Is it possible to reset the U01A0 code in a 2015 Chevrolet Silverado without fixing the underlying issue?

- While you can clear the code temporarily, it is essential to address the root cause of the communication problem to prevent the code from reappearing.

8. Are there any recalls or technical service bulletins related to OBDII code U01A0 in a 2015 Chevrolet Silverado?

- It is recommended to check with a Chevrolet dealership or online resources for any relevant recalls or technical service bulletins pertaining to the U01A0 code in your specific vehicle.

9. Can a DIY enthusiast without advanced automotive knowledge fix the U01A0 code issue in a 2015 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the U01A0 code issue, but it is advisable to seek professional help if unsure.

10. Is it necessary to reset the vehicle's computer after repairing the U01A0 code issue in a 2015 Chevrolet Silverado?

- Yes, it is recommended to reset the vehicle's computer after repairing the issue to clear any stored error codes and ensure proper communication between modules.