B1927 Code - Passenger Side Airbag Fault
Quick Answer
The Air Bag Control Module monitors the Passenger Side Airbag. Common causes include Faulty Passenger Side Airbag, Passenger Side Airbag harness is open or shorted, Passenger Side Airbag 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
- B1927 indicates Passenger Side Airbag Fault.
- Common causes
- Common causes include Faulty Passenger Side Airbag, Passenger Side Airbag harness is open or shorted, Passenger Side Airbag 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.
Code B1927 Description
What are the Possible Causes of the DTC B1927?
- Faulty Passenger Side Airbag
- Passenger Side Airbag harness is open or shorted
- Passenger Side Airbag circuit poor electrical connection
How to Fix the DTC B1927?
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 B1927 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 B1927 code?
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Get the B1927 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1927 Lexus — Short To Ground In Rear Pretensioner Squib LH Circuit
- B1927 Scion — Short To Ground In Rear Pretensioner Squib LH Circuit
- B1927 Toyota — Short To Ground In Rear Pretensioner Squib LH Circuit
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 B1927 Code
1. What does the OBDII code B1927 mean?
The B1927 code indicates a fault in the passenger side airbag circuit, usually due to a wiring issue, faulty connectors, or a malfunctioning airbag module.
2. What are common symptoms of the B1927 code?
Typical symptoms include an illuminated airbag warning light on the dashboard and possible deactivation of the passenger side airbag.
3. What causes the B1927 code to appear?
Common causes include damaged wiring, loose or corroded connectors, a defective passenger airbag module, or issues with the airbag control unit.
4. Can I drive my car with the B1927 code?
While the car may still be drivable, the airbag system may not function properly in an accident, which could compromise passenger safety.
5. How do I diagnose the B1927 code?
Diagnosis involves scanning the vehicle with an OBDII scanner, inspecting the wiring and connectors for damage or corrosion, and testing the passenger airbag module for faults.
6. What tools are needed to fix the B1927 code?
You’ll need an OBDII scanner, a multimeter for electrical testing, and basic tools to access and inspect the airbag components.
7. How much does it cost to repair the B1927 code?
Repair costs vary depending on the issue. Fixing a simple wiring problem might cost less than $100, while replacing the airbag module could cost several hundred dollars.
8. Can a blown fuse cause the B1927 code?
A blown fuse could potentially contribute to the problem if it interrupts power to the airbag system, so checking the fuses is a good first step.
9. Do I need to replace the passenger airbag if I get the B1927 code?
Not necessarily. The issue may be with the wiring or connectors rather than the airbag itself. Proper diagnosis will determine what needs replacement.
10. Can I reset the B1927 code without repairing the issue?
Resetting the code without addressing the root cause will likely result in the code returning, as the underlying fault still exists.
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