B1914 OBD-II Trouble Code: Air Bag Crash Sensors 1 and 2 Circuit Short To Ground

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

SCHEDULE B1914 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the B1914 code

B1914 is a diagnostic trouble code (DTC) for "Air Bag Crash Sensors 1 and 2 Circuit Short To Ground". 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 B1914 DIAGNOSTIC Get a fair and transparent estimate upfront

B1914 code definition

The B1914 diagnostic trouble code is an indication that there is a short to ground in the air bag crash sensor #1 or the air bag crash sensor #2.

What the B1914 code means

The air bag system uses sensors to indicate when it is necessary to deploy the air bags if the vehicle is in a crash. If the air bag crash sensor has received a short to ground signal in the seat belt assembly circuit for at least 0.5 seconds, information about this error will be sent to the Air Bag Control Module. The B1914 diagnostic trouble code will then be stored and the check engine light will come on.

What causes the B1914 code?

  • Faulty air bag crash sensor
  • Faulty air bag
  • Air bag crash sensor wiring that is frayed, broken, or shorted
  • Air bag crash sensor connector that is damaged, corroded
  • Air bag crash sensor connector that has bent pins
  • Faulty seat belt assembly

What are the symptoms of the B1914 code?

How does a mechanic diagnose the B1914 code?

  • Diagnostic trouble codes should be diagnosed in the order that they appear when scanned.
  • Use an OBD-II scanner to collect all stored trouble codes as well as freeze frame data.
  • Inspect the air bag crash sensor wiring for frays, breaks and shorts
  • Inspect the air bag crash sensor connectors for damage, corrosion and bent pins
  • Repair and replace crash sensor wiring and connectors as necessary
  • Complete a test drive to see if the B1914 diagnostic trouble code comes back.
  • If the B1914 trouble code comes back, check the air bag crash sensor grounds for good continuity.
  • Use an appropriate scan tool to test the air bag crash sensor for proper operation.
  • Disconnect the air bag crash sensor and the connector to the seat belt assembly and test the resistance.
  • The resistance test should fall within range of the manufacturer’s predetermined specifications.
  • If the resistance test does not coincide with the manufacturer’s specifications, repair or replace the no. 2 floor wire.
  • Complete a test drive to see if the B1914 trouble code comes back.
  • If the B1914 trouble code does come back, it is possible that there is a problem with the Air Bag Control Module. Although this is something that has been known to occur, this should be the last thing that is considered as the cause of the B1914 trouble code.
  • If the Air Bag Control Module needs to be replaced, it is possible that it will need to be reprogrammed as well, but this will depend on the manufacturer’s requirements.

Common mistakes when diagnosing the B1914 code

The most commonly made mistake when diagnosing the B1914 diagnostic trouble code is neglecting to check the seat belt assembly circuit properly. Other mistakes that are commonly made are overlooking faulty wiring and not taking the time to follow the diagnostic steps properly.

How serious is the B1914 code?

A diagnostic trouble code is usually considered serious when it causes driveability issues or a change in performance. The B1914 diagnostic trouble code is serious because if this trouble code is stored in the Air Bag Control Module and the air bag light is on, the entire air bag system will be disabled. The air bags will not be deployed if the event that the vehicle is in a serious accident. For this reason, the B1914 diagnostic trouble code should be diagnosed and repaired as soon as possible.

What repairs can fix the B1914 code?

Additional comments for consideration regarding the B1914 code

Always remember to disconnect the negative battery cable when testing or repairing the air bag system. Depending on the make and model of your vehicle there may be special procedures that need to be followed before before disabling and repairing the air bag system that are not included here.

Need help with a B1914 code?

YourMechanic offers certified 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
B1914

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

SCHEDULE B1914 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

4,796

Rating Summary
4,411
187
47
28
123
4,411
187
47
28
123

Matthew

31 years of experience
633 reviews
Matthew
31 years of experience
Mercedes-Benz E320 - Check Engine Light is on - Williamsburg, Virginia
MATT WAS AMAZING! HE EXPLAINTED EVERYTHING SO WELL! HIS EXPERTISE AS A MECHANIC IS EVIDENT AND I HIGHLY RECOMMEND HIM.

Mario

18 years of experience
101 reviews
Mario
18 years of experience
Lexus LS430 - Check Engine Light is on - Naples, Florida
NICE GUY, COMPLETED ALL WORK PROFESSIONALLY, HE ACTUALLY OFFERED SUGGESTION AND ATTITUDE WAS THAT HE CARED UNLIKE PAST MECHANIC

Kai

12 years of experience
3 reviews
Kai
12 years of experience
Hyundai Sonata - Check Engine Light is on - Plano, Texas
Great. He was knowledgable and wasted no time getting to work. Had lots of helpful information for me

Patrick

31 years of experience
1038 reviews
Patrick
31 years of experience
Mazda CX-7 - Check Engine Light is on - Austin, Texas
Patrick is always on time and extremely knowledgeable and professional. I am quite picky when it comes to somebody working on my car and I fully trust that Patrick will do an excellent job every time.

More related articles

P2500 OBD-II Trouble Code: Generator Lamp/L-Terminal Circuit Low
P2500 P2500 code definition The P2500 diagnostic trouble code is an indication of a problem in the L-Terminal of the Generator Lamp control circuit. Related Trouble Codes: P2501 OBD-II Trouble Code: Generator Lamp/L-Terminal Circuit High What the P2500 code means...
P2300 OBD-II Trouble Code: Ignition Coil A Primary Control Circuit Low
P2300 means the battery voltage sent to the ignition coil is not correct due to faulty coil, circuit wires, or faulty PCM .
P0485 OBD-II Trouble Code: Cooling Fan Power/Ground Circuit Malfunction
Cooling Cooling Fan Power/Ground Circuit Malfunction What the P0485 code means The P0485 code indicates that your cooling fan power is malfunctioning in some way. This could mean that your fan is coming on when your engine is off, or...

Related questions

My car keeps dying while I'm driving - 1999 Mitsubishi Eclipse

Check the transmission range selector for a loose connection and make sure it is tight on the transmission. The code is coming up for the transmission range selector saying that the transmission is in gear and park at the same...

Rransmission slipping causing check engine light to come on hard shifting when warm only first gear is harsh

Hello. From what you describe it would appear that your vehicle may be experiencing some mild to serious transmission issues. If the Check Engine Light is on I would recommend retrieving the trouble codes, as they will likely shed some...

2010 Ford Fusion SE with I4 Engine - Throttle Position (TP) and Accelerator Pedal Position (APP) sensors

Since the code reads Throttle Body, the sensor on the throttle body under the hood may be the best place to start. The throttle position sensor measures the angle of the throttle plate and tries to match the effort shown...

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