The side radar unit is mounted on a plastic bracket inside the bumper. Over time, minor impacts (parking bumps, car washes, or even temperature cycles) can warp the bracket. If the radar faces even , the return signal degrades enough to trigger an obstruction logic.
: The actual curtain airbag unit (located above the passenger doors along the roofline) may have an internal short or open circuit. nissan b1432-1a
: A short circuit or loose connection in the wiring harness under the driver's seat Failed Module : Internal failure of the SRS Airbag Control Module itself How to Fix It B1432 LH seat belt pre-tensioner circuits are short The side radar unit is mounted on a
In rare cases, the main airbag control module itself has a corrupted internal circuit. However, always rule out the seat sensor first, as it is the more common failure point. : The actual curtain airbag unit (located above