AutoCodes – Chevrolet – B0020 Chevrolet

B0020 Chevrolet 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 Chevrolet 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 18,330

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 09, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0020 Chevrolet 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 Chevrolet - Passenger Instrument Panel Air Bag Deployment Loop Stage 2 - AutoCodes.com — B0020 Chevrolet Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2

What does this mean?

What are the Possible Causes of the DTC B0020 Chevrolet?

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 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 does this mean?

Code Tech Notes

B0020:01 Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Battery
B0020:02 Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Ground
B0020:04 Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Open
B0020:0D Passenger Instrument Panel Air Bag Deployment Loop Stage 2 High Resistance
B0020:0E Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Low Resistance

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0020 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.

Need more information about the B0020 Chevrolet code?

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

Need Help with the Code?

Get the B0020 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

B0020 2014 Chevrolet Silverado — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
B0020 2015 Chevrolet Silverado — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
B0020 2016 Chevrolet Silverado — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
B0020 2017 Chevrolet Silverado — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
B0020 2018 Chevrolet Silverado — Passenger Instrument Panel Air Bag Deployment Loop Stage 2

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 Chevrolet Code

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

- Common symptoms include the airbag warning light illuminating on the dashboard and a potential message indicating an issue with the passenger airbag system.

2. What are the possible causes of OBDII code B0020 in a Chevrolet?

- The code B0020 can be triggered by a faulty passenger instrument panel airbag deployment loop stage 2, a malfunction in the airbag control module, or damaged wiring in the airbag system.

3. How serious is OBDII code B0020 in a Chevrolet?

- OBDII code B0020 related to the passenger instrument panel airbag deployment loop stage 2 is a serious issue as it pertains to the proper functioning of the passenger airbag system, which is a critical safety component in the vehicle.

4. Can I still drive my Chevrolet with OBDII code B0020 present?

- It is not recommended to drive the vehicle with OBDII code B0020 present, as it indicates a potential problem with the passenger airbag system that could affect its deployment in the event of an accident.

5. How can I diagnose OBDII code B0020 in my Chevrolet?

- Proper diagnosis requires a scan tool to read the code, followed by a thorough inspection of the passenger airbag system, including the deployment loop stage 2, airbag control module, and wiring connections.

6. What are some repair tips for fixing OBDII code B0020 in a Chevrolet?

- Repair tips may include checking and repairing any damaged wiring in the airbag system, replacing the passenger instrument panel airbag deployment loop stage 2 if faulty, and resetting the airbag system after repairs are completed.

7. Can I reset OBDII code B0020 in my Chevrolet myself?

- While you may be able to reset the code temporarily using a scan tool, it is important to address the underlying issue causing the code to prevent it from reoccurring and ensure the proper functioning of the airbag system.

8. Is it safe to ignore OBDII code B0020 in a Chevrolet?

- Ignoring OBDII code B0020 related to the passenger instrument panel airbag deployment loop stage 2 is not safe, as it can compromise the effectiveness of the passenger airbag system in the event of a collision.

9. How much does it typically cost to repair OBDII code B0020 in a Chevrolet?

- The cost of repairing OBDII code B0020 can vary depending on the specific issue causing the code, but it may involve replacing components such as the passenger instrument panel airbag deployment loop stage 2 or repairing damaged wiring.

10. Can OBDII code B0020 in a Chevrolet be prevented?

- While some causes of OBDII code B0020 may be due to wear and tear, regular maintenance and inspections of the airbag system can help prevent issues that could trigger the code.