AutoCodes – Chevrolet – B1020 2016 Chevrolet Silverado

B1020 2016 Chevrolet Silverado Code - Auxiliary Electronic Control Unit Performance

Quick Answer

The Heating, Ventilation, and Air Conditioning (HVAC) module communicates with the HVAC controls via serial data. Common causes include Faulty Heating, Ventilation, and Air Conditioning (HVAC) Controls, HVAC Controls harness is open or shorted, HVAC Controls 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: B1020 2016 Chevrolet Silverado indicates Auxiliary Electronic Control Unit Performance.
Common causes: Common causes include Faulty Heating, Ventilation, and Air Conditioning (HVAC) Controls, HVAC Controls harness is open or shorted, HVAC Controls 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 321

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 Apr 06, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1020 2016 Chevrolet Silverado Description

The Heating, Ventilation, and Air Conditioning (HVAC) module communicates with the HVAC controls via serial data. This Diagnostic Trouble Code (DTC) indicates a fault in the HVAC controls. The HVAC controls may continue to respond normally to faceplate functions when this DTC is set. The DTC will be set when the HVAC module receives an improper status response indicating an internal ECU fault in the HVAC controls.

OBDII Code B1020 2016 Chevrolet Silverado - Auxiliary Electronic Control Unit Performance - AutoCodes.com — B1020 2016 Chevrolet Silverado Code - Auxiliary Electronic Control Unit Performance

What does this mean?

What are the Possible Causes of the DTC B1020 2016 Chevrolet Silverado?

Faulty Heating, Ventilation, and Air Conditioning (HVAC) Controls
HVAC Controls harness is open or shorted
HVAC Controls circuit poor electrical connection

How to Fix the DTC B1020 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 B1020 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 B1020 2016 Chevrolet Silverado code?

Need more information on how to fix the B1020 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 B1020 2016 Chevrolet Silverado Code

1. What does OBDII code B1020 for a 2016 Chevrolet Silverado indicate?

The B1020 code specifically refers to Auxiliary Electronic Control Unit Performance in a 2016 Chevrolet Silverado.

2. What are the common symptoms of OBDII code B1020 in a 2016 Chevrolet Silverado?

Common symptoms include issues with the auxiliary electronic components, such as malfunctioning controls or erratic behavior.

3. What are the potential causes of OBDII code B1020 in a 2016 Chevrolet Silverado?

Potential causes of the B1020 code may include faulty wiring, a malfunctioning control unit, or a communication error within the auxiliary electronic system.

4. How can I diagnose the OBDII code B1020 in my 2016 Chevrolet Silverado?

Diagnosing the B1020 code typically involves using an OBDII scanner to retrieve the specific trouble code and then inspecting the auxiliary electronic components for any visible damage or issues.

5. Can I still drive my 2016 Chevrolet Silverado with OBDII code B1020 present?

If the vehicle is exhibiting severe symptoms or safety concerns due to the code, it is recommended to have the issue addressed before continuing to drive the Silverado.

6. How can I repair OBDII code B1020 in my 2016 Chevrolet Silverado?

Repairing the B1020 code may involve fixing any wiring issues, replacing a faulty control unit, or addressing communication errors within the auxiliary electronic system.

7. Is it possible to reset the OBDII code B1020 in a 2016 Chevrolet Silverado without repairs?

While clearing the trouble code may temporarily remove the warning light, it is crucial to address the underlying issue causing the B1020 code for a lasting solution.

8. Are there any DIY tips for troubleshooting OBDII code B1020 in a 2016 Chevrolet Silverado?

DIY tips may include checking for loose connections, inspecting wiring for damage, and ensuring proper functioning of the auxiliary electronic components.

9. How much does it typically cost to fix OBDII code B1020 in a 2016 Chevrolet Silverado?

The cost of fixing the B1020 code can vary depending on the exact cause of the issue, parts needed for replacement, and labor costs at a repair shop.

10. Can a professional mechanic help with diagnosing and repairing OBDII code B1020 in a 2016 Chevrolet Silverado?

Yes, a qualified mechanic with experience in automotive diagnostics can assist in accurately diagnosing and repairing the B1020 code in a 2016 Chevrolet Silverado.