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Engine-Codes – Generic – B0076

B0076 Code - Third Row Left Seatbelt Pretensioner Deployment Control

Quick Answer

The B0076 code indicates a malfunction in the third-row left seatbelt pretensioner deployment control system. Common causes include Wiring harness damage or corrosion, Faulty seatbelt pretensioner sensor, Malfunctioning seatbelt pretensioner 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
B0076 indicates Third Row Left Seatbelt Pretensioner Deployment Control.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty seatbelt pretensioner sensor, Malfunctioning seatbelt pretensioner 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B0076 Description

The B0076 code indicates a malfunction in the third-row left seatbelt pretensioner deployment control system. The seatbelt pretensioner is a safety feature that tightens the seatbelt in the event of a collision, reducing the slack and restraining the occupant more effectively. When this code is triggered, it means that there is a problem with the deployment control system, which could potentially compromise the effectiveness of the seatbelt in a crash.

OBDII Code B0076 - Third Row Left Seatbelt Pretensioner Deployment Control
B0076 Code - Third Row Left Seatbelt Pretensioner Deployment Control

Common Causes of B0076

  1. Wiring harness damage or corrosion.
  2. Faulty seatbelt pretensioner sensor.
  3. Malfunctioning seatbelt pretensioner control module.
  4. Loose or disconnected connectors in the seatbelt pretensioner system.

Symptoms of B0076

  1. Illumination of the airbag warning light on the dashboard.
  2. Audible chime indicating a problem with the airbag system.
  3. Inability to properly secure the seatbelt in the third-row left seat.
  4. Erratic behavior of the seatbelt pretensioner system during a self-test.

How to Fix B0076

  1. Begin by diagnosing the exact cause of the B0076 code using a diagnostic scanner to retrieve the specific fault codes.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace any damaged components.
  3. Check the seatbelt pretensioner sensor and control module for proper operation. Replace any faulty components as needed.
  4. Clear the fault codes from the vehicle's memory using the diagnostic scanner.
  5. Perform a test drive to ensure that the issue has been resolved and that the B0076 code does not return.

Cost to Fix B0076

The cost of repairing a B0076 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $150 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates can vary, so it's a good idea to get a few quotes from different auto repair shops to find the best price.

Need more information about the B0076 code?

Need more information on how to fix the B0076 code? Get Access to Factory Service Manuals

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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 B0076 Code

1. What does the OBDII code B0076 mean?

The B0076 code indicates an issue with the Third Row Left Seatbelt Pretensioner Deployment Control circuit, which is part of the vehicle's safety restraint system.

2. What are the common symptoms of the B0076 code?

Symptoms may include the airbag warning light being illuminated, a seatbelt pretensioner that does not function during a collision, or diagnostic trouble codes stored in the vehicle's computer.

3. What causes the B0076 code to appear?

Common causes include a faulty seatbelt pretensioner, damaged wiring or connectors in the circuit, or a malfunctioning airbag control module.

4. Can I still drive my car with the B0076 code?

While the car may still be drivable, the safety restraint system may not function properly in the event of an accident, so it’s important to address the issue promptly.

5. How is the B0076 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the seatbelt pretensioner and related wiring, and test the airbag control module to pinpoint the issue.

6. What repairs are needed to fix a B0076 code?

Repairs may involve replacing the third-row left seatbelt pretensioner, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the airbag control module.

7. Is the B0076 code covered under warranty?

This depends on the vehicle's warranty terms. Safety systems often have extended warranties, so it’s worth checking with your manufacturer or dealer.

8. Can I fix the B0076 code myself?

While basic checks like inspecting wiring are possible for DIYers, working on safety restraint systems is complex and best left to professionals due to the risk of accidental airbag deployment.

9. How much does it cost to repair the B0076 code?

Costs vary depending on the issue, but replacing a seatbelt pretensioner can range from $200 to $500, excluding labor, while wiring repairs or module replacements may cost more.

10. What happens if I ignore the B0076 code?

Ignoring the B0076 code can compromise the effectiveness of the seatbelt pretensioner and the safety restraint system, increasing the risk of injury in an accident.

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