B0026 GMC Code - Driver Frontal Deployment Loop Single Stage or Stage 1 Open
Quick Answer
The driver deployment loop consists of the following components: - A dual-stage inflatable restraint steering wheel module - The inflatable restraint steering wheel module coil - The steering wheel module high circuits for both stages 1 and 2 - The steering wheel module low circuits for both stages 1 and 2 There are 2 shorting bars used within the steering wheel module coil connector. Common causes include Faulty Steering Wheel Module Coil, Steering Wheel Module Coil harness is open or shorted, Steering Wheel Module Coil 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
- B0026 GMC indicates Driver Frontal Deployment Loop Single Stage or Stage 1 Open.
- Common causes
- Common causes include Faulty Steering Wheel Module Coil, Steering Wheel Module Coil harness is open or shorted, Steering Wheel Module Coil 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 B0026 GMC Description
- A dual-stage inflatable restraint steering wheel module
- The inflatable restraint steering wheel module coil
- The steering wheel module high circuits for both stages 1 and 2
- The steering wheel module low circuits for both stages 1 and 2
There are 2 shorting bars used within the steering wheel module coil connector. These shorting bars short together both stages of the steering wheel module high circuit and the steering wheel module low circuit when the connector is disconnected. This helps prevent unwanted deployment of the inflator module during servicing. During a frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop. This flow of current will deploy the steering wheel 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 DTC will be stored in memory.
What are the Possible Causes of the DTC B0026 GMC?
- Faulty Steering Wheel Module Coil
- Steering Wheel Module Coil harness is open or shorted
- Steering Wheel Module Coil circuit poor electrical connection
- Faulty Steering Wheel Module
How to Fix the DTC B0026 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 B0026 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 B0026 GMC Code
1. What are the common symptoms of OBDII code B0026 GMC?
- Common symptoms include the airbag light staying illuminated on the dashboard and possible non-deployment of the driver's frontal airbag during a collision.
2. What does the OBDII code B0026 GMC indicate?
- This code indicates a problem with the driver frontal deployment loop, specifically a single stage or Stage 1 being open.
3. What are possible causes of OBDII code B0026 GMC?
- Possible causes include a faulty driver frontal airbag module, damaged wiring or connectors in the deployment loop, or issues with the airbag system's control module.
4. How can I diagnose the cause of OBDII code B0026 GMC?
- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the driver frontal airbag system components for damage, and testing the wiring and connectors for continuity.
5. Can I continue driving with OBDII code B0026 GMC present?
- It is not recommended to continue driving with this code present, as it indicates a potential issue with the driver's frontal airbag system, which could affect its deployment in the event of a collision.
6. How can OBDII code B0026 GMC be repaired?
- Repairing this code may involve replacing the driver frontal airbag module, repairing or replacing damaged wiring and connectors, or reprogramming the airbag system's control module.
7. Are there any safety concerns associated with OBDII code B0026 GMC?
- Yes, there are safety concerns, as the driver's frontal airbag may not deploy properly in the event of a collision if this issue is not addressed promptly.
8. Can OBDII code B0026 GMC be reset without fixing the underlying issue?
- While the code can be cleared with a scan tool, it is important to address the underlying problem causing the code to prevent potential safety risks.
9. How much does it typically cost to repair OBDII code B0026 GMC?
- Repair costs can vary depending on the exact cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.
10. Is it possible to prevent OBDII code B0026 GMC from occurring?
- Regular maintenance and inspections of the airbag system components can help prevent issues that may trigger this code.
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