B001E is GM's code for the deployment loop feeding the airbag on the inboard side of the driver seat. On the Lambda crossovers that is the front center airbag, the one that inflates into the space between the front seats. The sensing and diagnostic module measures that loop constantly and sets B001E when the reading falls outside its window.
GM introduced the front center airbag on the 2013 Buick Enclave, Chevrolet Traverse, and GMC Acadia. It deploys from the inboard edge of the driver seat and fills the gap between the front seats. Its wiring runs through the seat and the connectors underneath it, and that is where the trouble usually is.
Like the rest of GM's loop codes, B001E splits by symptom byte, and those two digits do the work: 01 is short to battery, 02 is short to ground, 04 is open, 0D is high resistance, and 0E is low resistance. GM's setting conditions are specific. The circuit has to be shorted or open for 2 seconds, high resistance means above 4.2 ohms, low resistance means below 1.4 ohms, all with ignition voltage between 9 and 16 volts.
Two shorting bars inside the connector tie the control circuits together whenever it is unplugged, which prevents an accidental deployment during service. It also means a connector that is not fully latched can read as a shorted loop. A history version of the code clears itself after 100 fault free ignition cycles.
Circuit. The module is reporting a measurement across a pair of wires, so repairing the circuit stops the code from setting. The overlap to watch for is the same as on any deployment loop: a bag that actually fired reads as open, so B001E with symptom byte 04 often appears next to stored crash data. In that case the deployment record is a second job of its own.
No. Restoring the module's memory does nothing for a bad terminal crimp or an unlatched connector, and the code comes back on the next key cycle. Repair the circuit first, and if B001E is the only thing stored the light should go out on its own.
If the vehicle was in a collision and the SDM also locked with crash data, do the physical repairs, then send the module in for an airbag module reset. When the bag itself deployed, we supply genuine OEM seat airbags, and anything not shown can be sourced through a part request.
B001E belongs to GM's SIR system on the Global A platform and shows up on Buick Enclave, Chevrolet Traverse, and GMC Acadia from 2013 forward, plus other GM vehicles with a front center airbag. The neighboring numbers cover the other seat loops: B0014 is the driver seat side airbag, B0021 is the passenger seat side airbag, and B0015 and B0022 cover the front belt retractor pretensioners. Other manufacturers assign B001E to their own circuits.
Read the code with its symptom byte and write it down before touching anything, because clearing codes throws away the most useful piece of information you have. Byte 04 sends you after an open circuit or a deployed bag. Bytes 0D and 0E send you to the connectors.
GM published a bulletin, PI1357, for 2014 and 2015 Enclave, Traverse, and Acadia covering a service air bag message with B001E, B0014, B0015, B0021, or B0022 set with symptom byte 04 or 0D. The cause it names is high resistance from the way the terminals were crimped in the front seat X332, X333, F106D, F106DA, and F106F connectors, and the correction it gives is to solder the female terminals at the crimp. Check that before ordering a seat part. For a module locked after a collision our airbag module reset handles the stored data, and we also do seat belt repair when the belts fired in the same event.
Related codes: B0014, B0021, B0015, B0022
Keep reading:
Code scope: 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.
Genuine OEM, tested, and shipped ground from Jacksonville, Arkansas.
Buick parts and codes · Do not see it listed? Request a part or call 501-988-0611.