2010 Mazda B Series OBD2 Code B1924 Air Bag Internal Diagnostic Monitor Fault or System Disarm Fault

B1924 definition

A B1924 trouble code is related to a 2010 Mazda B Series 's air bag diagnostic monitor system that can purposely disarm the supplemental restraint system (SRS) if a fault is detected.

What the B1924 code means

B1924 is an OBD-II body code (hence the B) for a voltage or resistance issue within the air bag system circuit. When the ignition is turned to the “on” position, your 2010 Mazda B Series 's OBD-II system will perform several self-tests, and a failed test from the air bag system can result in a B1924. This code will attempt to open a specific power distribution box fuse to disarm the SRS, preventing unwanted air bag deployment.

What causes the B1924 code?

The most common causes for a B1924 are:

• Faulty power distribution box fuse
• Faulty battery voltage, resistance, or connection
• Faulty air bag diagnostic monitor
• Faulty charging system, i.e. faulty alternator

What are the symptoms of the B1924 code?

Symptoms should go unnoticed other than a check engine light and or air bag light on the dash. In the event of an accident, chances are high the air bag will not deploy.

How does a mechanic diagnose the B1924 code?

Because a B1924 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 your 2010 Mazda B Series 's engine computer. After this, they will test your 2010 Mazda B Series 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 B1924 code.

However, if the code returns after all of this, your mechanic will inspect fuses within your 2010 Mazda B Series 's power distribution box. They will replace any blown fuse with an exact value replacement and test for the code through your 2010 Mazda B Series 's self-test.

Common mistakes when diagnosing the B1924 code

A blown fuse will not always be the cause of a B1924, so it's important to try simple fixes first, such as resetting the engine computer or resecuring the battery.

How serious is the B1924 code?

Because a B1924 will attempt, and most likely succeed, in temporarily disarming the SRS, you shouldn't be in any danger of the air bag deploying. On the flipside, not having a working SRS is a danger in and of itself.

What repairs can fix the B1924 code?

The most common repairs for a B1924 are as follows:

• Fuse replacement
• Battery replacement
• Alternator replacement

Additional comments for consideration regarding the B1924 code

A B1924 air bag code will be specific to a Ford manufactured 2010 Mazda B Series . Any work that needs to be conducted on a 2010 Mazda B Series 's SRS should be handled by a trained professional. The air bag could unexpectedly deploy while working to fix a B1924

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B1924