Engine-CodesGeneric – B1407

B1407 Code - Passenger Side Airbag Deployment Control Circuit

Quick Answer

The B1407 diagnostic trouble code refers to a fault in the passenger side airbag deployment control circuit. Common causes include Faulty passenger side airbag sensor, Damaged wiring or connectors in the airbag deployment control circuit, Malfunctioning airbag 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
B1407 indicates Passenger Side Airbag Deployment Control Circuit.
Common causes
Common causes include Faulty passenger side airbag sensor, Damaged wiring or connectors in the airbag deployment control circuit, Malfunctioning airbag 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 07, 2024
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Code B1407 Description

The B1407 diagnostic trouble code refers to a fault in the passenger side airbag deployment control circuit. This circuit is responsible for monitoring the status of the passenger side airbag and deploying it in the event of a collision to protect the occupant. When this circuit malfunctions, it can lead to the airbag not deploying when needed or deploying unexpectedly, putting the passenger at risk.

OBDII Code B1407 - Passenger Side Airbag Deployment Control Circuit
B1407 Code - Passenger Side Airbag Deployment Control Circuit

Common Causes of B1407

  1. Faulty passenger side airbag sensor
  2. Damaged wiring or connectors in the airbag deployment control circuit
  3. Malfunctioning airbag control module
  4. Corrosion or water damage in the circuit components
  5. Impact or collision that damaged the airbag system

Symptoms of B1407

  1. Airbag warning light illuminated on the dashboard
  2. Passenger side airbag not deploying in a collision
  3. Intermittent or erratic airbag deployment
  4. Inconsistent performance of the passenger side airbag system

How to Fix B1407

  1. Begin by diagnosing the specific cause of the B1407 code using a professional-grade OBD-II scanner to pinpoint the issue.
  2. Inspect the wiring and connectors in the passenger side airbag deployment control circuit for any damage or corrosion. Repair or replace any damaged components.
  3. Test the passenger side airbag sensor and airbag control module for proper functionality. Replace any faulty components as needed.
  4. Clear the B1407 code from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying issues that were not initially detected.

Cost to Fix B1407

The cost of repairing a B1407 code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts and labor for this type of repair can range from $200 to $500. However, it's important to note that labor rates and part prices can vary significantly based on factors such as the vehicle make and model, the location of the repair shop, and the expertise of the technicians. It's recommended to obtain quotes from multiple repair shops to ensure you are getting a fair price for the necessary repairs.

Tech Notes for B1407

B1407:11 Passenger Side Airbag Deployment Control Circuit Short to Ground
B1407:12 Passenger Side Airbag Deployment Control Circuit Short to Battery
B1407:13 Passenger Side Airbag Deployment Control Circuit Open
B1407:1A Passenger Side Airbag Deployment Control Circuit Resistance Below Threshold

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Code B1407 Information for Specific Makes

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 B1407 Code

1. What does the OBDII code B1407 mean?

B1407 indicates an issue with the passenger side airbag deployment control circuit, which may prevent the airbag from deploying correctly in an accident.

2. What are the common symptoms of code B1407?

Symptoms include the airbag warning light staying on, a stored B1407 code, and possible inoperability of the passenger side airbag.

3. What causes the B1407 code to appear?

Common causes include damaged wiring, a faulty passenger airbag module, a malfunctioning airbag control module, or poor electrical connections.

4. Is it safe to drive with a B1407 code?

It’s not recommended to drive with this code active, as it may indicate the passenger airbag won’t deploy in a collision, compromising safety.

5. How is a B1407 code diagnosed?

A technician will inspect the airbag system, check the wiring and connectors for damage, and use a scan tool to test the airbag control circuit.

6. Can a blown fuse cause the B1407 code?

Yes, a blown fuse in the airbag system can disrupt the passenger airbag circuit and trigger the B1407 code.

7. How can I fix the B1407 code?

Repairs may involve replacing damaged wiring, repairing connectors, or replacing the passenger airbag module or control unit.

8. How much does it cost to fix the B1407 code?

Costs can vary depending on the issue but typically range from $100 for wiring repairs to $1,000 or more for module replacement.

9. Can I clear the B1407 code without repairs?

Clearing the code without addressing the root cause will not fix the problem, and the code is likely to return.

10. What tools are needed to troubleshoot the B1407 code?

You’ll need an OBDII scanner, a multimeter for testing electrical circuits, and potentially a wiring diagram for the airbag system.

Discuss the causes and fixes for B1407 OBDII Code

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