AutoCodes – GMC – B0071 2014 GMC Sierra

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

Quick Answer

The seat belt tension sensor is a sensor mounted on the passenger seat belt retractor and provides input to the Passenger Presence Module. Common causes include Faulty Passenger Seat Belt Retractor (Passenger Seat Belt Tension Sensor), Passenger Seat Belt Retractor harness is open or shorted, Passenger Seat Belt Retractor 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: B0071 2014 GMC Sierra indicates Passenger Seat Belt Tension Sensor Circuit.
Common causes: Common causes include Faulty Passenger Seat Belt Retractor (Passenger Seat Belt Tension Sensor), Passenger Seat Belt Retractor harness is open or shorted, Passenger Seat Belt Retractor 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.

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Code Popularity 312

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Oct 17, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0071 2014 GMC Sierra Description

The seat belt tension sensor is a sensor mounted on the passenger seat belt retractor and provides input to the Passenger Presence Module. When an infant car seat is properly restrained on the front passenger seat, the seat belt is tightly secured through the car seat. The seat belt pulls on the tension sensor and changes the voltage signal to the Passenger Presence Module. The Passenger Presence Module monitors the belt tension sensor signal circuit and if a fault is detected, the Diagnostic Trouble Code (DTC) will be set. When the Passenger Presence Module detects this DTC, it will send out a serial data message, and the Inflatable Restraint Sensing and Diagnostic Module will notify the customer of the enable/disable status by illuminating the OFF indicator on the PASSENGER AIR BAG ON/OFF indicators. The Inflatable Restraint Sensing and Diagnostic Module (SDM) will then suppress the deployment of the passenger instrument panel air bag and illuminate the AIR BAG indicator.

OBDII Code B0071 2014 GMC Sierra - Passenger Seat Belt Tension Sensor Circuit - AutoCodes.com — B0071 2014 GMC Sierra Code - Passenger Seat Belt Tension Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B0071 2014 GMC Sierra?

Faulty Passenger Seat Belt Retractor (Passenger Seat Belt Tension Sensor)
Passenger Seat Belt Retractor harness is open or shorted
Passenger Seat Belt Retractor circuit poor electrical connection
Faulty Passenger Presence Module

How to Fix the DTC B0071 2014 GMC Sierra?

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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0071 2014 GMC Sierra 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.

Need more information about the B0071 2014 GMC Sierra code?

Need more information on how to fix the B0071 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0071 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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.