B1346 on a Hyundai or Kia means the SRSCM measured resistance in the first stage driver airbag circuit that is too high. Something in the path between the module and the airbag is partly open. On these cars the clock spring is the part that fails most often.
The driver airbag circuit on a Hyundai or Kia runs from the SRSCM, through the clock spring in the steering column, to the squib inside the driver airbag module. The clock spring is the flat ribbon cable that lets the steering wheel turn while keeping that connection intact. The SRSCM measures the resistance of the whole path and compares it to a specification.
The numbers vary by model. The 2008 Azera manual calls for driver airbag resistance of 1.5 to 5.7 ohms, while the 2007 Sonata lists 1.9 to 3.0 ohms, so the correct figure has to come from the manual for the specific car. When the measured resistance sits above the top of that window, the module sets B1346 and takes the driver airbag out of service.
High resistance means a weak or partial connection somewhere in the path. A broken conductor in the ribbon, a corroded terminal, or a connector that is not fully seated all read the same way to the module.
Circuit. There is no crash record involved in B1346. The module is reporting a live electrical measurement and it will keep reporting it until the circuit reads within specification. A useful tell on Hyundai and Kia: when the clock spring is the culprit, the horn and the steering wheel buttons usually quit at the same time, because those signals travel through the same assembly.
No. Clearing memory does nothing for a circuit that measures out of range, and the code returns the moment the module rechecks it at the next key-on. The repair is the part. Most of the time that is a clock spring, and you can search clock springs by year and model. If the airbag itself turns out to be the failed piece, a driver airbag for your vehicle is the fix.
The driver airbag resistance reading applies to Hyundai and Kia, with Genesis models on the same restraint architecture behaving the same way. Ford, Lincoln, and Mercury use B1346 for a center high mount stop lamp circuit failure, which has nothing to do with the SRS, so the make decides how this number gets read.
Disconnect the battery and let the system sit before touching any SRS connector. Unplug the driver airbag and inspect both halves of the connector, since a partly seated plug sets this code without anything being broken. Measure squib resistance with the proper dummy load and adapter instead of putting a meter directly across an airbag. If the reading is out of spec at the airbag but good at the module connector, the clock spring is what sits between them. Related codes: B1347 for the low resistance side, plus B1916 and B1925.
Related codes: B1347, B1916, B1925
Keep reading:
Code scope: Hyundai, Kia, Genesis. The same number can mean something different on another manufacturer, so match the code to your make before you act on it.
A reset clears stored crash data. A replacement part fixes a hardware fault. We have read these codes since the nineties and will tell you which one you are looking at.
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