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Engine-Codes – Ford – B1942 Ford

B1942 Ford Code - Left Front Impact Sensor Fee/Return Circuit Open

Quick Answer

The B1942 Ford code indicates that there is an issue with the left front impact sensor fee/return circuit being open. Common causes include Wiring or harness damage, Faulty impact sensor, Corrosion or loose connections in the 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
B1942 Ford indicates Left Front Impact Sensor Fee/Return Circuit Open.
Common causes
Common causes include Wiring or harness damage, Faulty impact sensor, Corrosion or loose connections in the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1942 Ford Description

The B1942 Ford code indicates that there is an issue with the left front impact sensor fee/return circuit being open. Impact sensors are crucial components of a vehicle's safety system, as they are responsible for detecting collisions and deploying airbags or other safety features accordingly. In the case of this specific code, it means that the circuit that is responsible for sending signals to the vehicle's airbag control module in the event of a collision is not functioning properly. This can have serious implications for the vehicle's safety systems, as it may prevent the airbags from deploying in the event of a crash.

OBDII Code B1942 Ford - Left Front Impact Sensor Fee/Return Circuit Open
B1942 Ford Code - Left Front Impact Sensor Fee/Return Circuit Open

Common Causes of B1942 Ford

  1. Wiring or harness damage
  2. Faulty impact sensor
  3. Corrosion or loose connections in the circuit
  4. Issues with the airbag control module
  5. Previous collision or damage to the front left area of the vehicle

Symptoms of B1942 Ford

  1. Airbag warning light illuminated on the dashboard
  2. Airbags not deploying in a collision
  3. Inaccurate deployment of airbags
  4. Vehicle fails to pass safety inspection

How to Fix B1942 Ford

  1. Diagnose the issue by using a scan tool to retrieve the specific error code and inspect the impact sensor and related wiring.
  2. Repair or replace damaged wiring or harness connected to the left front impact sensor.
  3. Test the impact sensor for proper functionality and replace it if necessary.
  4. Check and clean any corroded connections in the circuit.
  5. Reset the error code and test the vehicle to ensure that the issue has been resolved.

Cost to Fix B1942 Ford

The typical cost for repairing a left front impact sensor fee/return circuit open issue can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $100 to $300, while the labor cost can range from $150 to $300. Overall, the total repair cost may amount to around $250 to $600. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned earlier.

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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 B1942 Ford Code

1. What are the common symptoms of OBDII code B1942 in a Ford vehicle?

- Common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the airbag system.

2. What does the OBDII code B1942 indicate in a Ford vehicle?

- OBDII code B1942 indicates a Left Front Impact Sensor Fee/Return Circuit Open in the airbag system.

3. What are the possible causes of the Left Front Impact Sensor Fee/Return Circuit Open code (B1942) in a Ford?

- Possible causes include damaged wiring, a faulty impact sensor, a loose connection, or a malfunctioning airbag control module.

4. How can I diagnose the OBDII code B1942 in my Ford vehicle?

- Diagnosing OBDII code B1942 involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connections to the left front impact sensor, and checking for any visible damage.

5. Can I drive my Ford vehicle with the OBDII code B1942 illuminated?

- It is not recommended to drive the vehicle with the airbag warning light on, as it indicates a potential issue with the airbag system's functionality.

6. How can I repair the Left Front Impact Sensor Fee/Return Circuit Open code (B1942) in my Ford?

- Repairing code B1942 may involve repairing or replacing damaged wiring, replacing the left front impact sensor, ensuring all connections are secure, or replacing the airbag control module if necessary.

7. Is it safe to reset the OBDII code B1942 in my Ford without addressing the underlying issue?

- It is not recommended to reset the code without addressing the underlying problem, as it could compromise the safety of the airbag system in the event of an accident.

8. How much does it typically cost to repair the Left Front Impact Sensor Fee/Return Circuit Open code (B1942) in a Ford?

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Are there any DIY tips for troubleshooting the OBDII code B1942 in a Ford?

- DIY tips may include checking for loose connections, inspecting wiring for damage, and ensuring all components in the airbag system are securely in place before seeking professional help if needed.

10. How important is it to address the OBDII code B1942 in a Ford promptly?

- It is crucial to address OBDII code B1942 promptly, as it relates to the proper functioning of the airbag system, which is a critical safety feature in the vehicle.

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