B0028 GMC Code - Passenger Side Deployment Loop Resistance Low
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 Side Air Bag Module Passenger Side, Side Air Bag Module Passenger Side harness is open or shorted, Side Air Bag Module Passenger Side 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
- B0028 GMC indicates Passenger Side Deployment Loop Resistance Low.
- Common causes
- Common causes include Faulty Side Air Bag Module Passenger Side, Side Air Bag Module Passenger Side harness is open or shorted, Side Air Bag Module Passenger Side 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.
Code B0028 GMC Description
What are the Possible Causes of the DTC B0028 GMC?
- Faulty Side Air Bag Module Passenger Side
- Side Air Bag Module Passenger Side harness is open or shorted
- Side Air Bag Module Passenger Side circuit poor electrical connection
- Faulty Sensing and Diagnostic Module (SDM)
How to Fix the DTC B0028 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 B0028 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.
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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.
Frequently Asked Questions about B0028 GMC Code
1. What are the common symptoms of OBDII code B0028 GMC (Passenger Side Deployment Loop Resistance Low)?
The common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the passenger side airbag during a collision.
2. What are the possible causes of OBDII code B0028 GMC?
Possible causes of this code include a faulty passenger side airbag module, damaged wiring or connectors in the deployment loop, or issues with the airbag control module.
3. How can I diagnose the issue related to OBDII code B0028 GMC?
Diagnosing the issue involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, checking the passenger side airbag module, and testing the resistance in the deployment loop.
4. Are there any safety concerns associated with OBDII code B0028 GMC?
Yes, there are safety concerns as the passenger side airbag may not deploy correctly during an accident if this issue is not addressed promptly.
5. Can I continue driving my vehicle with OBDII code B0028 GMC?
It is not recommended to drive the vehicle with this code present, as the passenger side airbag may not function as intended in the event of a collision.
6. How can I repair OBDII code B0028 GMC?
Repairing this code typically involves replacing the faulty passenger side airbag module, repairing or replacing damaged wiring or connectors, and clearing the fault code with a scan tool.
7. Is it possible to reset OBDII code B0028 GMC without fixing the underlying issue?
While you can clear the fault code temporarily, it will likely reappear if the root cause of the problem is not addressed.
8. Can I fix OBDII code B0028 GMC myself, or do I need professional help?
Depending on your automotive repair skill level and access to tools, you may be able to address this issue yourself. However, due to the safety implications, it is recommended to seek professional help if you are unsure.
9. How much does it typically cost to repair OBDII code B0028 GMC?
The cost of repairing this code can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from $200 to $500 or more.
10. Will fixing OBDII code B0028 GMC affect my vehicle's airbag system warranty?
If your vehicle is still under warranty, fixing this code should typically be covered as part of the airbag system warranty. It is advisable to check with your manufacturer or dealership for specific details.
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