B1937 Ford Code - Air Bag Passenger Pressure Switch Circuit Open Fault
Quick Answer
The B1937 Ford code indicates an issue with the airbag passenger pressure switch circuit being open. Common causes include Faulty passenger pressure switch, Damaged wiring or connectors in the circuit, Corrosion in the airbag system components. 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
- B1937 Ford indicates Air Bag Passenger Pressure Switch Circuit Open Fault.
- Common causes
- Common causes include Faulty passenger pressure switch, Damaged wiring or connectors in the circuit, Corrosion in the airbag system components.
- 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 B1937 Ford Description
The B1937 Ford code indicates an issue with the airbag passenger pressure switch circuit being open. This means that there is a fault in the circuit that detects the presence and weight of a passenger in the front passenger seat. The airbag system uses this information to determine whether to deploy the airbag in the event of a collision.
Common Causes of B1937 Ford
- Faulty passenger pressure switch
- Damaged wiring or connectors in the circuit
- Corrosion in the airbag system components
- Malfunctioning airbag control module
- Impact or damage to the front passenger seat
Symptoms of B1937 Ford
- Airbag warning light illuminated on the dashboard
- Airbag system fault message displayed on the instrument cluster
- Inconsistent airbag deployment in crash tests
- Loss of communication with the airbag control module
How to Fix B1937 Ford
- Diagnose the issue using a scan tool to read the fault codes and pinpoint the exact location of the problem.
- Inspect the wiring and connectors in the airbag passenger pressure switch circuit for any damage or corrosion. Repair or replace as necessary.
- Test the passenger pressure switch to ensure it is functioning correctly. Replace if faulty.
- Clear the fault codes from the airbag control module and reset the system.
- Perform a thorough system test to confirm that the airbag system is operating as intended.
Cost to Fix B1937 Ford
The cost of repairing a B1937 Ford code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for this type of airbag system fault can range from $200 to $500, including parts and labor. However, it is important to note that labor rates at auto repair shops can vary widely, so it is advisable to check with local shops for a more accurate estimate. Additionally, if the issue requires replacing expensive components like the airbag control module, the repair costs may be higher.
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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 B1937 Ford Code
1. What are the common symptoms of an OBDII code B1937 in a Ford related to the Air Bag Passenger Pressure Switch Circuit Open Fault?
- Common symptoms include the airbag warning light being illuminated on the dashboard, possible loss of airbag functionality for the passenger side, and potential diagnostic trouble codes related to the airbag system.
2. What are some possible causes of the B1937 OBDII code in a Ford?
- Common causes of the B1937 code include a faulty passenger pressure switch, damaged wiring or connectors in the airbag system, or a problem with the airbag control module.
3. How can I diagnose the Air Bag Passenger Pressure Switch Circuit Open Fault in my Ford vehicle?
- To diagnose the issue, you can use an OBDII scanner to retrieve the specific code (B1937) and further investigate the passenger pressure switch, wiring, and connectors for any visible damage or faults.
4. Is it safe to drive with the B1937 OBDII code related to the Air Bag Passenger Pressure Switch Circuit Open Fault?
- It is not recommended to drive with the B1937 code present, as it indicates a potential issue with the passenger side airbag system, which could compromise passenger safety in the event of a collision.
5. Can I reset the B1937 OBDII code in my Ford without fixing the underlying issue?
- While you can clear the code with an OBDII scanner, the B1937 code will likely reappear until the root cause of the Air Bag Passenger Pressure Switch Circuit Open Fault is diagnosed and repaired.
6. What are some repair tips for addressing the B1937 OBDII code in a Ford?
- Repair tips include inspecting and testing the passenger pressure switch, checking the wiring and connectors for damage, and consulting the vehicle's service manual for specific diagnostic and repair procedures.
7. How much does it typically cost to repair the Air Bag Passenger Pressure Switch Circuit Open Fault in a Ford?
- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the passenger pressure switch, repairing damaged wiring, or reprogramming the airbag control module, potentially ranging from a few hundred to over a thousand dollars.
8. Can I fix the B1937 OBDII code related to the Air Bag Passenger Pressure Switch Circuit Open Fault myself?
- While some DIY enthusiasts may be able to address this issue, working on the airbag system can be complex and dangerous. It is recommended to consult a certified mechanic or airbag specialist for proper diagnosis and repair.
9. Will the B1937 OBDII code cause my Ford to fail a state emissions inspection?
- In most cases, the B1937 code related to the Air Bag Passenger Pressure Switch Circuit Open Fault will not cause your Ford to fail a state emissions inspection. However, it is important to address the safety issue promptly.
10. How long does it typically take to repair the Air Bag Passenger Pressure Switch Circuit Open Fault in a Ford?
- The repair time can vary depending on the exact cause of the issue and the availability of parts. In general, diagnosing and fixing the B1937 code may take a few hours to a full day at a certified repair shop.
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