B0103 GMC Code - Passenger-Side EFS Valid Identification Not Received
Quick Answer
Electronic Frontal Sensor (EFS), also known as a front end sensor, uses a unidirectional 2-wire circuit. Common causes include Faulty Passenger-Side Electronic Frontal Sensor (EFS), Passenger-Side Electronic Frontal Sensor (EFS) harness is open or shorted, Passenger-Side Electronic Frontal Sensor (EFS) 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
- B0103 GMC indicates Passenger-Side EFS Valid Identification Not Received.
- Common causes
- Common causes include Faulty Passenger-Side Electronic Frontal Sensor (EFS), Passenger-Side Electronic Frontal Sensor (EFS) harness is open or shorted, Passenger-Side Electronic Frontal Sensor (EFS) 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 B0103 GMC Description
What are the Possible Causes of the DTC B0103 GMC?
- Faulty Passenger-Side Electronic Frontal Sensor (EFS)
- Passenger-Side Electronic Frontal Sensor (EFS) harness is open or shorted
- Passenger-Side Electronic Frontal Sensor (EFS) circuit poor electrical connection
- Faulty Sensing and Diagnostic Module (SDM)
How to Fix the DTC B0103 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 B0103 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 B0103 GMC Code
1. What are common symptoms of OBDII code B0103 GMC (Passenger-Side EFS Valid Identification Not Received)?
- Common symptoms include the airbag warning light illuminating on the dashboard and potential disabling of the passenger-side airbag.
2. What are the possible causes of OBDII code B0103 GMC?
- The code B0103 GMC can be caused by issues with the electronic front sensor (EFS) on the passenger side, faulty wiring, or a malfunction in the airbag control module.
3. How can I diagnose OBDII code B0103 GMC?
- Diagnosis typically involves using a scan tool to retrieve the specific trouble code, checking the wiring and connectors related to the passenger-side EFS, and performing a thorough inspection of the airbag system.
4. Is it safe to drive with OBDII code B0103 GMC?
- It is not recommended to drive with an active airbag-related fault code like B0103 GMC, as it may compromise the safety of the airbag system in the event of a collision.
5. Can I reset OBDII code B0103 GMC without fixing the underlying issue?
- While you can clear the code temporarily, it will likely reappear until the underlying issue causing the code is properly diagnosed and repaired.
6. How can I repair OBDII code B0103 GMC?
- Repairing code B0103 GMC involves addressing the specific cause, which may include repairing or replacing the passenger-side EFS, fixing wiring issues, or replacing the airbag control module.
7. Are there any DIY tips for fixing OBDII code B0103 GMC?
- DIY tips for fixing code B0103 GMC may include checking and securing the wiring connections, inspecting for visible damage, and ensuring all components related to the airbag system are properly connected.
8. Can a mechanic help with diagnosing and repairing OBDII code B0103 GMC?
- Yes, a qualified mechanic with experience in airbag systems can help diagnose the issue causing code B0103 GMC and perform the necessary repairs to ensure the airbag system functions properly.
9. Does fixing OBDII code B0103 GMC require specialized tools?
- Repairing code B0103 GMC may require specialized tools such as a scan tool for diagnostics, wiring diagrams for troubleshooting, and potentially airbag system-specific tools for repairs.
10. How much does it typically cost to repair OBDII code B0103 GMC?
- The cost of repairing code B0103 GMC can vary depending on the specific cause of the issue, but it may involve expenses for parts, labor, and diagnostic services, with estimates ranging from a few hundred to over a thousand dollars.
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