B1927 OBD-II Trouble Code: Passenger Side Airbag Fault

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE B1927 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the B1927 code

B1927 is a diagnostic trouble code (DTC) for "Passenger Side Airbag Fault". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE B1927 DIAGNOSTIC Get a fair and transparent estimate upfront

B1927 definition

A B1927 trouble code is related to a vehicle’s passenger side supplemental restraint system (SRS) and the air bag.

What the B1927 code means

B1927 is a manufacturer specific OBD-II body code for a fault within the passenger side air bag system. When this code is triggered, the passenger side air bag will typically be disarmed by the air bag diagnostic monitor.

What causes the B1927 code?

The most common causes for a B1927 are:

  • Faulty battery connection
  • Faulty wiring to the passenger air bag
  • Faulty grounds
  • Faulty charging system
  • Faulty air bag

What are the symptoms of the B1927 code?

There will be no noticeable symptoms other than a check engine light and perhaps, an air bag light on the gauge cluster. As with most SRS trouble codes, a B1927 will likely disarm the air bags.

How does a mechanic diagnose the B1927 code?

Because a B1927 may be an intermittent issue caused by improper installation of a battery or previous wiring harness repairs, your mechanic will typically first clear the code and reset the vehicle’s engine computer. After this, they will test the vehicle to ensure it can run a number of self-tests at startup. This will help determine if there is a more serious problem as proper installation of a battery (tightening leads, repairing frayed wires, etc.) can fix a B1927 code.

If the code returns after all of this, your mechanic will then inspect the wiring to the passenger side air bag, repairing as necessary. While inspecting, they will ensure all grounds are cleaned and in working condition. They will also inspect the condition of the ignitor and test to ensure the vehicle’s charging system is working properly.

Common mistakes when diagnosing the B1927 code

It is important to try simple fixes first, such as resetting the engine computer or resecuring the battery before testing for a wiring issue within the supplemental restraint system (SRS).

How serious is the B1927 code?

Any air bag code will likely disarm the SRS itself, making it important to fix a B1927 as quickly as possible so your air bag will be functional in the event of an accident.

What repairs can fix the B1927 code?

The most common repairs for a B1927 are as follows:

Additional comments for consideration regarding the B1927 code

A B1927 code should be specific to a Ford, Lincoln, Mercury or Mazda vehicle. It’s wise to look for any recalls that may be tied to a B1927 code as well, meaning the repair could be covered by the manufacturer.

Any work that needs to be conducted on a vehicle’s SRS should be handled by a trained professional. The air bag could unexpectedly deploy while working to fix a B1927.

Need help with a B1927 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6220.

trouble codes
OBD-II
B1927

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE B1927 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

4,810

Rating Summary
4,424
187
47
28
124
4,424
187
47
28
124

Joel

19 years of experience
741 reviews
Joel
19 years of experience
Acura RL - Check Engine Light is on - Jacksonville, Florida
very knowledgeable and precise. able to fix electrical issues in my car. Right on time for the appointment.

Christopher

15 years of experience
41 reviews
Christopher
15 years of experience
Honda Accord - Check Engine Light is on - Fairburn, Georgia
Christopher was excellent! He explained everything in detail to make sure I understood. He was professional and provided me with the next course of actions to resolve my care issues. I'm glad he was sent to service my car.

Alexander

18 years of experience
58 reviews
Alexander
18 years of experience
Saab 9-7x - Check Engine Light is on - Kissimmee, Florida
He was very friendly and very helpful . I felt like it was being around a close friend , also gave me so very good advice on my car & future advice about it . Highly recommend mechanic, would use his services again .

Matthew

31 years of experience
639 reviews
Matthew
31 years of experience
Jeep Patriot - Check Engine Light is on - Norfolk, Virginia
Matthew was on time which was a relief, he is very knowledgeable and was easy to understand what was wrong and what was being done. I am recommending to friends and family due to the great experience Matthew gave me. Extremely professional 10/10

More related articles

P2297 OBD-II Trouble Code: O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1
P2297 P2297 code definition O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1 (May be seen with other oxygen sensor codes) What the P2297 code means P2297 means that the oxygen sensor (O2) has out of range sensor...
P0167 OBD-II trouble CodeO2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 3)
P0167 P0167 code definition O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 3) What P0167 code means Many oxygen sensors are heated now in order to bring them to operating temperature more quickly. If any of the wiring in...
B1943 OBD-II Trouble Code: Airbag Crash Sensor #1 Short to Ground
B1943 means there is a discrepancy in the voltages to two terminals in the airbag circuit, likely due to an open circuit in a sensor.

Related questions

Car starts up fine after 15 mins it starts pinging/ticking very loud

Hello. It sounds like you may have a sensor reading wrong or the vehicle may have gotten bad gas. If this occurred right after the O2 sensor was replaced then I would suspect that the O2 sensor is not reading...

I get trouble code P2138, but I have cleared it and the car works for a while. Now I am getting trouble code P2127 along with P2138.

Hi there. The pedal position sensor on the gas pedal has lost signal for the switch 'E' and 'D'. The code P2138 means that the computer has discovered a malfunction with the pedal sensor. Check the harness to the...

Opinion on car theft through OBD port

Not really. A lot of it is just scam you know. People aren't stealing by plugging it in your car. First, they have to get in to begin with. The only time something like that happens is with high-end stuff...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com