Blind spot message code b18b6?

Commonly that is a bad radar unit but we need to test to ensure it isn't a wiring fault. First, clear the code, power off, power back on, does the code return? Yes = go to the radar unit behind the rear bumper cover and unplug the 6 pin connector. Check that with the ignition on you have battery voltage at pins 2 & 5 Got power? Yes = unplug the 16 pin connector from the blind spot control module (Inside the trunk, left side behind the trim panel) and check for continuity on the CAN lines, Pin 2 on the 16 to pin 1 on the 6 pin AND Pin 3 on the 16 pin to pin 3 on the 6 pin. Got continuity, replace the radar unit and use the ADAS targets to check the aim of the replacement part.
If you don't have power or continuity look at the plugs and wiring for damage.

So the radar if bad needs to be calibrated as far as aim? same for the Blind spot module?