B1938 Ford Code - Air Bag Passenger Circuit Short To Ground Fault
Quick Answer
The B1938 Ford code indicates that there is a fault in the airbag passenger circuit, specifically a short to ground. Common causes include Damaged wiring in the airbag passenger circuit, Faulty airbag sensor or sensor module, Corrosion or loose connections in the airbag system. 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
- B1938 Ford indicates Air Bag Passenger Circuit Short To Ground Fault.
- Common causes
- Common causes include Damaged wiring in the airbag passenger circuit, Faulty airbag sensor or sensor module, Corrosion or loose connections in the airbag system.
- 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 B1938 Ford Description
The B1938 Ford code indicates that there is a fault in the airbag passenger circuit, specifically a short to ground. This means that there is an unintended connection between the airbag passenger circuit and the vehicle's ground, which can potentially prevent the airbag from deploying properly in the event of a collision. Airbags are crucial safety features in modern vehicles, designed to protect occupants from serious injury during accidents. A short to ground fault in the airbag system poses a significant safety risk as it can compromise the airbag's functionality and effectiveness.
Common Causes of B1938 Ford
- Damaged wiring in the airbag passenger circuit
- Faulty airbag sensor or sensor module
- Corrosion or loose connections in the airbag system
- Malfunctioning airbag control module
- Electrical issues within the airbag system
Symptoms of B1938 Ford
- Airbag warning light illuminated on the dashboard
- Inability to turn off the airbag warning light
- Airbag system failure message displayed on the instrument cluster
- Inconsistent or intermittent functioning of the airbag system
How to Fix B1938 Ford
- Diagnose the exact cause of the short to ground fault using a diagnostic scanner and specialized tools.
- Inspect the wiring in the airbag passenger circuit for any damage, corrosion, or loose connections.
- Test the airbag sensor and sensor module for proper functioning and replace if necessary.
- Check the airbag control module for any faults and replace if required.
- Clear the diagnostic trouble codes and reset the airbag system to ensure proper operation.
Cost to Fix B1938 Ford
The typical repair costs for addressing a B1938 Ford code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, repairing a short to ground fault in the airbag passenger circuit can range from $200 to $500, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops to get a more accurate estimate for the repair.
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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.
Frequently Asked Questions about B1938 Ford Code
1. What are the common symptoms of OBDII code B1938 Ford related to the Air Bag Passenger Circuit Short To Ground Fault?
The common symptoms include the airbag warning light illuminating on the dashboard, potential loss of functionality of the passenger-side airbag, and in some cases, the airbag may deploy unexpectedly.
2. What are the possible causes of OBDII code B1938 Ford indicating an Air Bag Passenger Circuit Short To Ground Fault?
Potential causes of this code include damaged wiring or connectors in the passenger-side airbag system, a faulty passenger-side airbag module, or a short circuit in the airbag system.
3. How can I diagnose the OBDII code B1938 Ford for an Air Bag Passenger Circuit Short To Ground Fault?
Diagnosis typically involves using a diagnostic scanner to retrieve the fault codes, conducting a visual inspection of the airbag system components, and testing the wiring and connectors for any signs of damage or short circuits.
4. Is it safe to drive with OBDII code B1938 Ford indicating an Air Bag Passenger Circuit Short To Ground Fault?
It is not recommended to drive the vehicle with this fault code present, as it may compromise the effectiveness of the passenger-side airbag system in the event of a collision.
5. Can I reset the OBDII code B1938 Ford for an Air Bag Passenger Circuit Short To Ground Fault myself?
While you can clear the fault code with a diagnostic scanner, it is crucial to address the underlying issue causing the fault code to prevent potential safety risks.
6. How much does it typically cost to repair OBDII code B1938 Ford related to an Air Bag Passenger Circuit Short To Ground Fault?
The cost of repair can vary depending on the exact cause of the fault, but it may involve replacing damaged wiring, connectors, or components in the passenger-side airbag system.
7. Are there any safety precautions to consider when working on OBDII code B1938 Ford for an Air Bag Passenger Circuit Short To Ground Fault?
It is essential to disconnect the vehicle's battery before working on the airbag system to prevent accidental deployment. It is recommended to follow manufacturer guidelines and safety procedures.
8. Can a DIY enthusiast with basic mechanical skills repair OBDII code B1938 Ford related to an Air Bag Passenger Circuit Short To Ground Fault?
Repairing this fault code may require specialized knowledge and tools related to airbag systems. It is often best to consult a qualified mechanic or technician for proper diagnosis and repair.
9. Will fixing OBDII code B1938 Ford for an Air Bag Passenger Circuit Short To Ground Fault require the airbag system to be replaced entirely?
Not necessarily. The repair approach will depend on the specific cause of the fault. In some cases, only certain components or wiring may need to be repaired or replaced.
10. How long does it typically take to repair OBDII code B1938 Ford indicating an Air Bag Passenger Circuit Short To Ground Fault?
The repair time can vary based on the complexity of the issue and the availability of parts. It is advisable to consult with a professional to get an accurate estimate of the repair timeline.
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