Engine-CodesGMC – B0071 2014 GMC Sierra

B0071 2014 GMC Sierra Code - Passenger Seat Belt Tension Sensor Circuit

Quick Answer

The B0071 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the passenger seat belt tension sensor circuit. Common causes include Wiring harness damage or corrosion, Faulty seat belt tension sensor, Defective control module. 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 2014 GMC Sierra indicates Passenger Seat Belt Tension Sensor Circuit.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty seat belt tension sensor, Defective control module.
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.
Table of contents Created and updated by William Orellana on Sep 28, 2024
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Code B0071 2014 GMC Sierra Description

The B0071 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the passenger seat belt tension sensor circuit. This code indicates that there is a malfunction in the circuit responsible for monitoring the tension in the passenger seat belt. The seat belt tension sensor is a crucial safety component that helps ensure the proper functioning of the vehicle's supplemental restraint system (SRS), including the airbags.

OBDII Code B0071 2014 GMC Sierra - Passenger Seat Belt Tension Sensor Circuit
B0071 2014 GMC Sierra Code - Passenger Seat Belt Tension Sensor Circuit

Common Causes of B0071 2014 GMC Sierra

  1. Wiring harness damage or corrosion.
  2. Faulty seat belt tension sensor.
  3. Defective control module.
  4. Loose or disconnected connectors.
  5. Impact or damage to the passenger seat belt system.

Symptoms of B0071 2014 GMC Sierra

  1. Airbag warning light illuminated on the dashboard.
  2. Inconsistent or erratic behavior of the passenger seat belt warning system.
  3. Inability to properly secure the passenger seat belt.
  4. Faulty deployment or non-deployment of the airbags during a collision.

How to Fix B0071 2014 GMC Sierra

  1. Begin by conducting a thorough visual inspection of the seat belt tension sensor circuit, checking for any visible damage to the wiring harness, connectors, or sensor.
  2. Use a multimeter to test the continuity and resistance of the circuit components, including the sensor and wiring.
  3. If a fault is detected, replace the faulty component, whether it be the sensor, wiring harness, or control module.
  4. Clear the DTC from the vehicle's onboard computer using a diagnostic scan tool.
  5. Test the repaired system to ensure proper functionality and the absence of the B0071 code.

Cost to Fix B0071 2014 GMC Sierra

The cost of repairing a B0071 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $100 to $300, while labor costs may range from $150 to $400. Overall, the total cost of addressing this issue could fall between $250 and $700. It's important to note that these estimates are rough approximations, and actual costs may differ based on factors such as location, labor rates, and the availability of parts. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

Tech Notes for B0071 2014 GMC Sierra

B0071:03 Passenger Seat Belt Tension Sensor Circuit Voltage Below Threshold

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

Need more information about the B0071 2014 GMC Sierra code?

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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.

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 B0071 2014 GMC Sierra Code

1. What does OBDII code B0071 for a 2014 GMC Sierra mean?

The B0071 code indicates a problem with the passenger seat belt tension sensor circuit in a 2014 GMC Sierra.

2. What are the common symptoms of OBDII code B0071 in a GMC Sierra?

Common symptoms of code B0071 include the airbag light being illuminated on the dashboard and potential issues with the passenger seat belt system.

3. What are some possible causes of OBDII code B0071 in a 2014 GMC Sierra?

Possible causes of code B0071 can include a faulty seat belt tension sensor, damaged wiring in the circuit, or a problem with the airbag control module.

4. How can I diagnose the cause of OBDII code B0071 in my GMC Sierra?

Diagnosing code B0071 may involve using a scan tool to retrieve the specific fault codes, inspecting the seat belt tension sensor and its wiring for damage, and testing the sensor's functionality.

5. Can I still drive my GMC Sierra with OBDII code B0071 present?

It is not recommended to drive your GMC Sierra with the B0071 code active, as it indicates a potential issue with the passenger seat belt system and airbags, compromising safety.

6. How can I repair OBDII code B0071 in my 2014 GMC Sierra?

Repairing code B0071 may involve replacing the faulty seat belt tension sensor, repairing damaged wiring, or resetting the airbag control module after addressing the underlying issue.

7. Are there any DIY tips for fixing OBDII code B0071 in a GMC Sierra?

While some basic troubleshooting like checking for loose connections or damaged wires can be done DIY, resolving code B0071 often requires specialized tools and expertise best handled by a professional mechanic.

8. Is it expensive to fix OBDII code B0071 in a 2014 GMC Sierra?

The cost of repairing code B0071 in a GMC Sierra can vary depending on the root cause of the issue, the parts needed, and whether you choose to go to a dealership or an independent repair shop.

9. Can OBDII code B0071 in a 2014 GMC Sierra be intermittent?

Yes, code B0071 can sometimes be intermittent, with the warning light coming on and off sporadically. It's essential to address this issue promptly to ensure the safety systems function correctly.

10. Will resetting the OBDII codes clear B0071 in a 2014 GMC Sierra?

Resetting the OBDII codes may temporarily clear the B0071 code, but if the underlying issue is not fixed, the code is likely to reappear. It's crucial to diagnose and repair the problem to prevent it from returning.

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