AutoCodes – GMC – B0029 GMC

B0029 GMC Code - Right Front/Passenger Side Deployment Loop Open

Quick Answer

When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. Common causes include Faulty Right Front/Passenger Side Air Bag Module, Right Front/Passenger Side Air Bag Module harness is open or shorted, Right Front/Passenger Side Air Bag Module 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: B0029 GMC indicates Right Front/Passenger Side Deployment Loop Open.
Common causes: Common causes include Faulty Right Front/Passenger Side Air Bag Module, Right Front/Passenger Side Air Bag Module harness is open or shorted, Right Front/Passenger Side Air Bag Module 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 11,659

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 B0029 GMC Description

When the ignition switch is turned to RUN position, Sensing and Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. The SDM then performs deployment loop voltage out of range test and deployment loop resistance measurement test. If voltage out of range test detects a short to voltage condition, the resistance measurement test will not be performed.

OBDII Code B0029 GMC - Right Front/Passenger Side Deployment Loop Open - AutoCodes.com — B0029 GMC Code - Right Front/Passenger Side Deployment Loop Open

What does this mean?

What are the Possible Causes of the DTC B0029 GMC?

Faulty Right Front/Passenger Side Air Bag Module
Right Front/Passenger Side Air Bag Module harness is open or shorted
Right Front/Passenger Side Air Bag Module circuit poor electrical connection

How to Fix the DTC B0029 GMC?

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 B0029 GMC 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 B0029 GMC code?

Need more information on how to fix the B0029 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0029 GMC 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 B0029 GMC Code

1. What are the common symptoms of OBDII code B0029 GMC (Right Front/Passenger Side Deployment Loop Open)?

- The common symptoms include the airbag warning light illuminating on the dashboard and a potential loss of functionality of the right front/passenger side airbag.

2. What are the typical causes of OBDII code B0029 GMC?

- The code B0029 usually indicates an issue with the right front/passenger side airbag deployment loop being open, which could be caused by a loose connection, damaged wiring, or a faulty airbag sensor.

3. How can I diagnose the OBDII code B0029 GMC at home?

- You can start by visually inspecting the wiring and connectors related to the right front/passenger side airbag system. Check for any signs of damage, corrosion, or loose connections. Using an OBDII scanner to read and clear the code is also recommended.

4. Is it safe to drive with OBDII code B0029 GMC present?

- It is not recommended to drive with the B0029 code active, as it indicates a potential issue with the right front/passenger side airbag system, which could affect its functionality in the event of a collision.

5. Can I repair OBDII code B0029 GMC myself?

- While diagnosing the issue is possible for some DIY enthusiasts, repairing the code may require specialized tools and expertise. It's advisable to consult a professional mechanic or dealership for proper diagnosis and repair.

6. What are the repair options for OBDII code B0029 GMC?

- Repair options may include fixing damaged wiring, replacing faulty connectors, or repairing/replacing the right front/passenger side airbag sensor. A trained technician can provide the best course of action based on the specific diagnosis.

7. How much does it typically cost to repair OBDII code B0029 GMC?

- The cost of repairing OBDII code B0029 GMC can vary depending on the underlying issue, parts needed, and labor costs. It's best to get a few quotes from different repair shops or dealerships to compare prices.

8. Can resetting the OBDII code B0029 GMC make it go away permanently?

- Resetting the code may temporarily turn off the warning light, but if the underlying issue causing the B0029 code is not addressed, it is likely to reappear. It's crucial to diagnose and fix the root cause of the problem.

9. Are there any safety precautions to take when dealing with OBDII code B0029 GMC?

- When working on the airbag system related to the B0029 code, always disconnect the vehicle's battery and wait for at least 10 minutes before starting any repairs to prevent accidental deployment of the airbags.

10. Does OBDII code B0029 GMC affect the overall safety of the vehicle?

- Yes, OBDII code B0029 GMC does affect the safety of the vehicle, as it indicates a potential issue with the right front/passenger side airbag system, which is a critical safety feature in the event of a collision. It's essential to address this code promptly to ensure the airbag functions correctly.