AutoCodes – Generic – B0062

B0062 Code - Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open

Quick Answer

The driver roof rail deployment loop consists of an inflatable restraint roof rail module - left and the roof rail module high and low circuits. Common causes include Faulty Left Front/Driver Roof Rail/Head Curtain Bag, Left Front/Driver Roof Rail/Head Curtain Bag harness is open or shorted, Left Front/Driver Roof Rail/Head Curtain 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: B0062 indicates Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open.
Common causes: Common causes include Faulty Left Front/Driver Roof Rail/Head Curtain Bag, Left Front/Driver Roof Rail/Head Curtain Bag harness is open or shorted, Left Front/Driver Roof Rail/Head Curtain 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 3,106

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0062 Description

The driver roof rail deployment loop consists of an inflatable restraint roof rail module - left and the roof rail module high and low circuits. A shorting bar used within the roof rail module connector shorts together both the roof rail module high and low circuits when the connector is disconnected. This will help to prevent unwanted deployment of the inflator module during servicing. 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 the roof rail module. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a Diagnostic Trouble Code (DTC) will be stored in memory.

OBDII Code B0062 - Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open - AutoCodes.com — B0062 Code - Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open

What does this mean?

What are the Possible Causes of the DTC B0062?

Faulty Left Front/Driver Roof Rail/Head Curtain Bag
Left Front/Driver Roof Rail/Head Curtain Bag harness is open or shorted
Left Front/Driver Roof Rail/Head Curtain Bag circuit poor electrical connection
Faulty Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0062?

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 B0062 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 B0062 code?

Need more information on how to fix the B0062 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0062 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B0062 Buick — Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open
B0062 Cadillac — Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open
B0062 Chevrolet — Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open
B0062 GMC — Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open

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 B0062 Code

1. What are the common symptoms of OBDII code B0062?

- The common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the left front/driver roof rail/head curtain airbag during a collision.

2. What can cause the OBDII code B0062 to trigger?

- This code is typically triggered when the left front/driver roof rail/head curtain airbag deployment loop is detected as being open or not functioning properly.

3. How serious is the OBDII code B0062?

- This code relates to the airbag system, so it is considered a serious issue as it can affect the proper deployment of the airbag in the event of a collision, potentially compromising occupant safety.

4. What should I do if OBDII code B0062 is detected?

- It is recommended to have the vehicle inspected by a qualified mechanic or technician as soon as possible to diagnose the exact cause of the issue and ensure the airbag system is functioning correctly.

5. Can I still drive my vehicle with OBDII code B0062 present?

- It is not advisable to drive the vehicle with this code present, as it indicates a potential problem with the airbag system, which is a critical safety feature in the event of an accident.

6. How is OBDII code B0062 typically repaired?

- The repair process for this code usually involves diagnosing the root cause of the open deployment loop and then addressing the issue, which may include repairing or replacing the affected components.

7. Are there any DIY repair tips for fixing OBDII code B0062?

- Due to the complexity and safety implications of airbag systems, it is recommended to leave the diagnosis and repair of OBDII code B0062 to trained professionals to ensure proper resolution.

8. How much does it cost to fix OBDII code B0062?

- The cost of repairing OBDII code B0062 can vary depending on the underlying cause of the issue, the extent of the repairs needed, and labor rates in your area. It is best to consult with a mechanic for an accurate estimate.

9. Can OBDII code B0062 be a false alarm or intermittent issue?

- While intermittent issues can sometimes trigger this code temporarily, it is important not to ignore it, as it indicates a potential problem with the airbag system that should be addressed promptly.

10. Is it safe to reset or clear OBDII code B0062 without fixing the underlying problem?

- It is not recommended to clear this code without addressing the underlying issue, as doing so may mask a safety concern with the airbag system. It is crucial to have the problem diagnosed and repaired by a professional.