AutoCodes – Chevrolet – B0020 2018 Chevrolet Silverado

B0020 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 681

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Oct 06, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0020 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Passenger Instrument Panel Air Bag Deployment Loop Stage 2 - AutoCodes.com — B0020 2018 Chevrolet Silverado Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2

What does this mean?

What are the Possible Causes of the DTC B0020 2018 Chevrolet Silverado?

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 2018 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 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 2018 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 B0020 2018 Chevrolet Silverado code?

Need more information on how to fix the B0020 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0020 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

1. What does OBDII code B0020 mean in a 2018 Chevrolet Silverado?

The code B0020 indicates a problem with the Passenger Instrument Panel Air Bag Deployment Loop Stage 2 in the airbag system of the vehicle.

2. What are the common symptoms of OBDII code B0020 in a 2018 Chevrolet Silverado?

Common symptoms of code B0020 may include the airbag warning light staying illuminated on the dashboard and a potential non-deployment of the passenger-side airbag during a collision.

3. What are the possible causes of OBDII code B0020 in a 2018 Chevrolet Silverado?

Possible causes of code B0020 can include a faulty passenger-side airbag sensor, a wiring issue in the airbag system, or a malfunctioning airbag control module.

4. How can I diagnose OBDII code B0020 in a 2018 Chevrolet Silverado?

Diagnosing code B0020 typically involves using a diagnostic scanner to retrieve the specific fault code, conducting a visual inspection of the airbag system components, and performing continuity tests on the wiring.

5. Can I still drive my 2018 Chevrolet Silverado with OBDII code B0020?

It is not recommended to drive the vehicle with an active airbag fault code like B0020, as it may compromise the effectiveness of the passenger-side airbag system in the event of a collision.

6. How can I repair OBDII code B0020 in a 2018 Chevrolet Silverado?

Repairing code B0020 may involve replacing the faulty passenger-side airbag sensor, repairing any damaged wiring, or reprogramming the airbag control module to clear the fault code.

7. Is it safe to reset OBDII code B0020 in a 2018 Chevrolet Silverado without fixing the underlying issue?

Resetting the code without addressing the root cause can temporarily turn off the warning light, but it will not fix the underlying problem with the airbag system, potentially putting passengers at risk in case of an accident.

8. How much does it cost to fix OBDII code B0020 in a 2018 Chevrolet Silverado?

The cost of fixing code B0020 can vary depending on the exact cause of the issue and the labor rates in your area. It is recommended to consult with a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast repair OBDII code B0020 in a 2018 Chevrolet Silverado?

While some basic troubleshooting steps can be performed by DIY enthusiasts, repairing airbag system issues like code B0020 often requires specialized tools and expertise, so it is advisable to seek professional help.

10. How often should I have the airbag system checked in my 2018 Chevrolet Silverado to prevent OBDII code B0020?

Regular maintenance checks, including airbag system inspections, are crucial to prevent issues like code B0020. It is recommended to follow the manufacturer's recommended service intervals and address any warning lights promptly.