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B1918 is a diagnostic trouble code (DTC) for "Air Bag Memory Clear Circuit Open". 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.
The B1918 diagnostic trouble code is an indication that the air bag memory clear circuit is open and is faulty.
The air bag system has its own module, separate from the powertrain control module (PCM). Trouble codes relating to the air bag system are stored in the air bag control module. Trouble codes are able to be cleared from the air bag control module with the proper scan tool after the stored code has been properly diagnosed and repaired. The air bag memory clear circuit is the component of the air bag system that makes this possible. Once a repair is completed, if the diagnostic trouble code related to that repair is unable to be cleared from the air bag control module, this indicates that there is a problem with the air bag memory clear circuit. The air bag control module will store the B1918 diagnostic trouble code and the air bag light will come on.
When diagnosing the B1918 trouble code, mistakes that are most commonly made by failing to inspect all of the related components. Make sure to inspect the instrument cluster, the wiring harness, and the fuses for the air bag system. It is important to ensure that there are no faults, damaged wiring, or blown fuses.
A diagnostic trouble code is normally considered serious when it causes driveability issues or a change in performance. Any problems with the air bag system are considered serious. In the event that the air bag system is completed disabled, the air bags will not deploy and this can be dangerous to the driver and passengers. It is important to have the B1918 diagnostic trouble code diagnosed and repaired immediately.
The air bag system should be disabled when repairs are being completed for the B1918 diagnostic trouble code. If the air bag system is not properly disabled, the air bags may deploy during the repair causing serious bodily injury.
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 1-800-701-6230.