B0014 is GM's code for the deployment loop that feeds the side airbag built into the driver seat back. The SDM measures that circuit continuously and sets B0014 when it reads a short, an open, or resistance outside its window. The circuit runs from the module out to the seat, which is why the connector under the seat is where most of these end.
A seat mounted side airbag sits in the outboard bolster of the seat back and fires through a seam in a side impact. Because it rides in a seat that slides, reclines, and comes out of the vehicle for other repairs, its circuit takes more abuse than any other deployment loop on the car. GM tests every loop continuously for continuity, shorts to ground, and shorts to voltage, and the driver seat side loop gets its own number.
The symptom byte is the part worth recording. On a 2011 Sierra 2500, GM lists B0014 01 as the loop shorted to voltage for 120 milliseconds, 02 as shorted to ground for the same time, 04 as an open circuit, 0D as resistance greater than 3.9 ohms, and 0E as resistance less than 1.1 ohms. Thresholds move a little between platforms, so pull the figure for the vehicle in front of you.
With the code stored, the SDM lights the AIR BAG indicator. GM notes the system will still attempt deployment if a crash occurs, so the light is not a statement that everything is switched off. A loop reading out of range still needs the repair.
Circuit. B0014 is the module reporting what it measured on the pair of wires going to the seat, and no crash record is implied by the number alone. Repair the circuit and the code stops setting. The exception is a vehicle that took a driver side hit. A fired seat airbag reads as an open loop, so B0014 with symptom byte 04 often sits beside stored deployment data. Treat the fired hardware and the locked module as two items on the same repair order.
No, not by itself. A reset restores what the module holds in memory and changes nothing about a broken wire or a spent inflator, so the code returns at the next key cycle. Repair the loop first. If the seat airbag deployed and the module also locked with crash data, do the physical work, then send the module in for an airbag module reset. When the bag in the seat is what needs replacing, genuine OEM seat airbags are searchable by year and model.
B0014 is a GM number and reads the same across Chevrolet, GMC, Buick, Cadillac, Pontiac, and Saturn vehicles equipped with seat mounted side airbags. GM words it as Driver Seat Side Air Bag Deployment Loop. The passenger seat twin is B0021, and the roof rail bags carry B0016 on the left and B0023 on the right, so the four numbers map the side restraints. Other manufacturers assign B0014 to their own circuits, so confirm you are reading a GM module.
Record the symptom byte, then disconnect the battery and give the system a few minutes before touching an SRS connector. Slide the seat forward, unlatch the yellow connector underneath, inspect both halves for bent or pushed out terminals and for the film fretting leaves, and confirm the CPA seats fully on reassembly. GM's diagnostic aids point at connector and CPA problems first on the short to ground and low resistance bytes, and at fretting or a partly seated connector on the open and high resistance bytes.
With the connector ruled out, run the harness through full seat travel looking for a pinch point, then measure the loop at the module end. If B0021 is stored at the same time, look at what both seats share, usually a harness or a module fault rather than two bags failing at once. Anything not listed in the store can be sourced through request a part.
Related codes: B0021, B0016, B0015
Keep reading:
Code scope: Chevrolet, GMC, Buick. 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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