AutoCodesGMC – B0020 2016 GMC Sierra

B0020 2016 GMC Sierra Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2

Quick Answer

During a side or frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy an air bag or pretensioner. Common causes include Faulty Passenger Instrument Panel Air Bag, Passenger Instrument Panel Air Bag harness is open or shorted, Passenger Instrument Panel Air Bag 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
B0020 2016 GMC Sierra indicates Passenger Instrument Panel Air Bag Deployment Loop Stage 2.
Common causes
Common causes include Faulty Passenger Instrument Panel Air Bag, Passenger Instrument Panel Air Bag harness is open or shorted, Passenger Instrument Panel Air Bag 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 335
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 06, 2022
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Code B0020 2016 GMC Sierra Description

During a side or frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy an air bag or pretensioner. There are 2 shorting bars that will short together control circuits when the connector is disconnected. This will help to prevent unwanted deployment of the air bag or pretensioner during servicing.
OBDII Code B0020 2016 GMC Sierra - Passenger Instrument Panel Air Bag Deployment Loop Stage 2 - AutoCodes.com
B0020 2016 GMC Sierra Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2

What are the Possible Causes of the DTC B0020 2016 GMC Sierra?

  • Faulty Passenger Instrument Panel Air Bag
  • Passenger Instrument Panel Air Bag harness is open or shorted
  • Passenger Instrument Panel Air Bag circuit poor electrical connection
  • Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0020 2016 GMC Sierra?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0020 2016 GMC Sierra 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 B0020 2016 GMC Sierra code?

Need more information on how to fix the B0020 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0020 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B0020 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code B0020 in a 2016 GMC Sierra related to the Passenger Instrument Panel Air Bag Deployment Loop Stage 2?

The common symptoms include the airbag warning light illuminated on the dashboard and potential non-deployment of the passenger-side airbag in the event of a collision.

2. What are the possible causes of OBDII code B0020 in a 2016 GMC Sierra?

The code B0020 typically indicates a fault with the Passenger Instrument Panel Air Bag Deployment Loop Stage 2, which could be caused by a faulty airbag sensor, wiring issues, or a malfunction in the airbag deployment system.

3. How can I diagnose the issue causing OBDII code B0020 in my 2016 GMC Sierra?

Diagnosing the problem usually involves using a professional OBDII scanner to read the trouble codes, conducting a visual inspection of the airbag system components, and testing the sensors and wiring for continuity and proper operation.

4. Can I still drive my 2016 GMC Sierra with OBDII code B0020 present?

It is not recommended to drive the vehicle with an active airbag fault code, as it poses a safety risk in the event of a collision. It's advisable to address the issue promptly.

5. How can I repair OBDII code B0020 related to the Passenger Instrument Panel Air Bag Deployment Loop Stage 2 in my 2016 GMC Sierra?

Depending on the underlying cause, repairing the issue may involve replacing a faulty sensor, repairing damaged wiring, or resetting the airbag system after fixing the problem. It's recommended to consult a professional mechanic for proper diagnosis and repair.

6. Are there any safety precautions I should take when working on the airbag system to address OBDII code B0020 in my 2016 GMC Sierra?

When working on the airbag system, it's crucial to disconnect the vehicle's battery and wait for a specified time to prevent accidental deployment of the airbags. It's also recommended to follow proper safety procedures outlined in the vehicle's service manual.

7. Can a DIY enthusiast with basic automotive knowledge repair OBDII code B0020 in a 2016 GMC Sierra?

While some simple tasks like checking fuses or connectors can be done by DIY enthusiasts, repairing the airbag system related to code B0020 often requires specialized tools and expertise. It's best to seek professional help to ensure the issue is properly resolved.

8. Will resetting the OBDII code B0020 in my 2016 GMC Sierra make the problem go away permanently?

Resetting the code may temporarily turn off the warning light, but if the underlying issue causing code B0020 is not addressed, the problem will likely reoccur. It's crucial to diagnose and repair the root cause to prevent future issues.

9. How much does it typically cost to repair OBDII code B0020 in a 2016 GMC Sierra at a dealership or repair shop?

The cost of repair can vary based on the specific issue causing the code B0020. It's recommended to obtain multiple quotes from reputable repair shops or dealerships to compare prices and services offered before proceeding with the repair.

10. Is the repair for OBDII code B0020 covered under warranty for a 2016 GMC Sierra?

If your vehicle is still under warranty, the repair for code B0020 may be covered depending on the terms of the warranty and the cause of the issue. It's advisable to check with your dealership or refer to your warranty documentation for more information.

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