B0071 2018 GMC Sierra Code - Passenger Seat Belt Tension Sensor Circuit
Quick Answer
The B0071 code for a 2018 GMC Sierra indicates a problem with the passenger seat belt tension sensor circuit. Common causes include Faulty passenger seat belt tension sensor, Damaged or corroded wiring in the sensor circuit, Loose connections or poor electrical connections in the sensor circuit. 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
- B0071 2018 GMC Sierra indicates Passenger Seat Belt Tension Sensor Circuit.
- Common causes
- Common causes include Faulty passenger seat belt tension sensor, Damaged or corroded wiring in the sensor circuit, Loose connections or poor electrical connections in the sensor circuit.
- 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 B0071 2018 GMC Sierra Description
The B0071 code for a 2018 GMC Sierra indicates a problem with the passenger seat belt tension sensor circuit. The seat belt tension sensor is responsible for detecting if the passenger's seat belt is properly fastened and tensioned. This information is crucial for the vehicle's safety systems, such as the airbag deployment system, to function correctly in the event of a collision. When this sensor circuit malfunctions, it can lead to inaccurate readings or a complete failure to detect the seat belt status, potentially compromising the effectiveness of the vehicle's safety features.
Common Causes of B0071 2018 GMC Sierra
- Faulty passenger seat belt tension sensor
- Damaged or corroded wiring in the sensor circuit
- Loose connections or poor electrical connections in the sensor circuit
- Issues with the airbag control module
- Impact or damage to the passenger seat belt system
Symptoms of B0071 2018 GMC Sierra
- Airbag warning light illuminated on the dashboard
- Passenger airbag indicator showing as off when a passenger is seated
- Failure of the passenger airbag to deploy in a collision
- Seat belt warning chime or light not activating when the passenger seat belt is not fastened
- Inconsistent or erratic behavior of the passenger seat belt system
How to Fix B0071 2018 GMC Sierra
- Begin by conducting a thorough visual inspection of the passenger seat belt tension sensor and its wiring to check for any visible damage or loose connections.
- Use a diagnostic scanner to retrieve and clear the B0071 code from the vehicle's computer system.
- Test the passenger seat belt tension sensor using a multimeter to determine if it is functioning correctly or needs replacement.
- Repair or replace any damaged wiring or connectors in the sensor circuit.
- If the issue persists, further diagnostics may be required to pinpoint the exact cause, such as testing the airbag control module or other related components.
Cost to Fix B0071 2018 GMC Sierra
The cost of repairing a B0071 code for a passenger seat belt tension sensor circuit issue can vary depending on the extent of the problem and the specific repairs needed. In general, the cost of parts for this repair could range from $100 to $300, while labor costs may add an additional $100 to $200. Keep in mind that these are rough estimates, and actual costs can vary based on factors such as location, shop rates, and the availability of parts. It's recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate.
Tech Notes for B0071 2018 GMC Sierra
B0071:04 Passenger Seat Belt Tension Sensor Circuit Open
B0071:07 Passenger Seat Belt Tension Sensor Circuit Voltage Above Threshold
B0071:08 Passenger Seat Belt Tension Sensor Circuit Voltage Performance Signal Invalid
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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 B0071 2018 GMC Sierra Code
1. What does OBDII code B0071 for a 2018 GMC Sierra indicate?
- OBDII code B0071 in a 2018 GMC Sierra specifically relates to the Passenger Seat Belt Tension Sensor Circuit.
2. What are the common symptoms of a Passenger Seat Belt Tension Sensor Circuit issue (B0071) in a 2018 GMC Sierra?
- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the passenger seat belt tension system.
3. What could cause the OBDII code B0071 to trigger in a 2018 GMC Sierra?
- The code B0071 can be triggered by a faulty passenger seat belt tension sensor, damaged wiring in the circuit, or a malfunctioning airbag control module.
4. How can I diagnose a Passenger Seat Belt Tension Sensor Circuit problem (B0071) in my 2018 GMC Sierra?
- Diagnosis typically involves using a diagnostic scanner to retrieve the specific code, inspecting the seat belt tension sensor and its wiring, and testing the airbag system's components.
5. Can I continue driving my 2018 GMC Sierra with the B0071 code present?
- It is not recommended to drive the vehicle with the B0071 code active as it indicates a potential safety issue with the passenger seat belt tension sensor circuit.
6. What are the repair options for fixing the B0071 code in a 2018 GMC Sierra?
- Repairs may involve replacing the faulty seat belt tension sensor, repairing damaged wiring, or reprogramming the airbag control module to resolve the issue.
7. Is it possible to reset the B0071 code in a 2018 GMC Sierra without repairing the underlying issue?
- While clearing the code temporarily may be possible, it is crucial to address the root cause of the problem to ensure the safety systems function correctly.
8. How much does it typically cost to repair a B0071 code in a 2018 GMC Sierra?
- The cost of repairs for a B0071 code can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $200 to $500 or more.
9. Can a DIY enthusiast fix the B0071 code in a 2018 GMC Sierra?
- Repairing the B0071 code may require specialized tools and knowledge of airbag systems, so it is generally recommended to have a professional technician address the issue.
10. How often does the Passenger Seat Belt Tension Sensor Circuit issue (B0071) occur in 2018 GMC Sierra vehicles?
- While not extremely common, issues with the Passenger Seat Belt Tension Sensor Circuit leading to the B0071 code can occur in some 2018 GMC Sierra models, especially with higher mileage or wear and tear.
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