AutoCodes – Ford – B1933 Ford

B1933 Ford Code - Air Bag Passenger Circuit Open Fault

Quick Answer

The Restraints Control Module (RCM) checks all of the Passenger Air Bag Module Circuits for faults. Common causes include Faulty Passenger Air Bag Module, Passenger Air Bag Module harness is open or shorted, Passenger Air Bag Module circuit poor electrical connection. 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: B1933 Ford indicates Air Bag Passenger Circuit Open Fault.
Common causes: Common causes include Faulty Passenger Air Bag Module, Passenger Air Bag Module harness is open or shorted, Passenger Air Bag Module circuit poor electrical connection.
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 Popularity 5,770

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1933 Ford Description

The Restraints Control Module (RCM) checks all of the Passenger Air Bag Module Circuits for faults. If the RCM detects an open or low resistance on the Passenger Air Bag Module Squib 1 Circuits, it will store Diagnostic Trouble Code (DTC) B1933 in memory and illuminate the air bag indicator.

OBDII Code B1933 Ford - Air Bag Passenger Circuit Open Fault - AutoCodes.com — B1933 Ford Code - Air Bag Passenger Circuit Open Fault

What does this mean?

What are the Possible Causes of the DTC B1933 Ford?

Faulty Passenger Air Bag Module
Passenger Air Bag Module harness is open or shorted
Passenger Air Bag Module circuit poor electrical connection
Faulty Restraint Control Module (RCM)

How to Fix the DTC B1933 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1933 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1933 Ford code?

Need more information on how to fix the B1933 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1933 Ford code diagnosed by a professional: Find a repair shop in your area

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 B1933 Ford Code

1. What are common symptoms of OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- The common symptoms include the airbag warning light staying illuminated on the dashboard and the airbag system failing to deploy in the event of a collision.

2. What causes the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- This code is typically caused by a fault in the passenger side airbag circuit, such as a loose connection, damaged wiring, or a faulty airbag sensor.

3. How serious is the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- This code indicates a fault in the airbag system, which is a crucial safety feature. It is important to address this issue promptly to ensure the airbags deploy correctly in case of an accident.

4. Can I drive my vehicle with the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- It is not recommended to drive the vehicle with an unresolved airbag fault as it can compromise occupant safety in the event of a collision. It is best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose and repair the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- Diagnosing and repairing this code typically involves inspecting the passenger side airbag circuit for loose connections, damaged wiring, or a malfunctioning sensor. A qualified mechanic with the proper diagnostic tools can help identify and resolve the issue.

6. Is it safe to reset the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault) without fixing the underlying problem?

- It is not safe to simply reset the code without addressing the underlying issue in the airbag system. Resetting the code may temporarily turn off the warning light, but it will not fix the problem, potentially leaving the airbags non-functional.

7. How much does it cost to repair the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- The cost of repairing this code can vary depending on the specific cause of the fault and the labor rates in your area. It is advisable to get a diagnostic assessment from a qualified mechanic to determine the exact repair cost.

8. Can a DIY enthusiast fix the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault)?

- While some basic troubleshooting like checking for loose connections or damaged wiring can be done by DIY enthusiasts, repairing the airbag system requires specialized knowledge and tools. It is recommended to seek professional help for this issue.

9. Will the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault) cause my vehicle to fail inspection?

- In many regions, a fault in the airbag system can lead to a failed inspection as it compromises the safety features of the vehicle. It is important to address this issue before undergoing any inspection.

10. How can I prevent the OBDII code B1933 Ford (Air Bag Passenger Circuit Open Fault) from occurring in the future?

- To prevent this code from occurring again, it is essential to ensure regular maintenance of the airbag system, including checking for loose connections, inspecting wiring for damage, and addressing any warning lights promptly.