He meant "drivers side" (DS) and I think is confusing the ABS with SRS.
and ya the impact sensor/s under the bumper frame, like you linked above are the most common problem, you should have a associated code but getting that code requires a scanner that can read SRS. the cheapy low end scanners usually do not have that capability.
if it is a front sensor just be aware the left & right side are the same part number and the code may only say "front impact sensor" so if you replace one side and the code does not go away then swap it to the other side. next most common is the passenger seat sensor or a broken wire.