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B1943 is a diagnostic trouble code (DTC) for "Airbag Crash Sensor #1 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.
A B1943 code means that the vehicle’s onboard diagnostic system has detected a discrepancy in the voltages to two terminals in the airbag circuit, and has registered a trouble code.
Air bag systems are designed to perform self-diagnostics. In the event of a B1943 code, voltages are off spec at certain terminals in the system, registering a trouble code as part of the self-diagnostic process.
As with many codes, technicians often jump ahead on a B1943 code without doing a proper process of elimination and end up replacing parts unnecessarily.
A B1941 code can result in the airbag not deploying in a collision.
On many Ford vehicles, the air bag warning light will flash to alert the driver to a problem. The light will flash an indication of the code itself. In this case, it would flash four times, followed by a pause, followed by three flashes to denote 43.
Any airbag-related work is complex and might be best left up to a professional. Accidental deployment of the airbag can result in serious injury.
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 1-800-701-6230.